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E30 Torque Specs and Technical Specifications

June 30, 2017
By

 

 

 

Engine Torque Specs:

Camshaft chain tensioner rail

Securing nut……………………………………………………………………….35 ± 5 Nm (26 ± 4 ft. lb.)

Camshaft drive belt tensioner to engine

(Bolts)………………………………………………………………………….…………..22 ± 2 Nm (16 ± 1 ft. lb.)

Camshaft oil carrier to cylinder head

M6 bolts …………………………………………………………………………..…….9 ± 1 Nm (80 ± 9 in.lb.)

M8 bolts………………………………………………………………………………22 ± 2 Nm (16 ± 1 ft.lb.)

Camshaft sprocket to camshaft ( bolt)

4- Cylinder engine…………………………………………………………..………….7 Nm (5 ft.lb.)

6- Cylinder engine…………………………………………………………..…65-70 Nm (48-52 ft.lb.)

Connecting rod cap to connecting rod

4- Cylinder engine……………………………………………………………….52-57 Nm (38-42 ft.lb.)

6- cylinder engine………………………………………………..………20 Nm ( 15 ft.lb) plus an additional 70o

Cylinder head cover to cylinder

Head (nut)…………………………………………………….………… 15 ± 1.5 Nm (16 ± 1 ft.lb.)

Cylinder head to cylinder block (bolt)

4- cylinder engine ( Hex-head)

Stage 1………………………………………………………………………….60 ± 2 Nm (44 ± 1 ft.lb.)

Stage 2

(after waiting 15 minutes)……………………………………………………………33±3o

Stage 3

( with engine at operating temperature)………………………………….………..…….25±5o

6- cylinder engine ( Torx® head)

Stage 1…………………………………………………………………….…30 Nm (22 ft.lb.)

Stage 2………………………………………………………………………..….90o( torque angle)

Stage 3……………………………………………………………….…..90o( torque angle)

6- cylinder engine ( Hex-head)

Stage 1………………………………………………………………………..…40-0+5 Nm (30-0+4 ft.lb.)

Stage 2

(After waiting 15 minutes)………………………………………….…….. 60-0+5 Nm (44-0+4 ft.lb.)

Stage 3

(With engine at operating temperature)……………………….…..………….. 25-0+5 o ( torque angle)

Engine mount bracket to engine ( bolt)

M8……………………………………………………………..…….22-24 Nm (16-18 ft.lb.)
M10 ………………………………………………………………..…………..43-48 Nm ( 32-35 ft.lb.)

Engine mount to mount bracket (nut)…………………………………….. 43-48 Nm (32-35 ft.lb.)

Engine mount to subframe ( nut)

M8 ……………………………………………………………………….…25-28 Nm (18-21 ft.lb.)

M10……………………………………………………………………………43-48 Nm (32-35 ft.lb.)

Engine to transmission bell housing

Manual transmission

Torx® head bolts

M8………………………………………………………………………..……20-24 Nm ( 14-18 ft.lb)

M10…………………………………………………………..………….38-47 Nm ( 29-35 ft.lb)

M12………………………………………………………………………………64-80 Nm ( 47-59 ft.lb)

Hex-head bolts

M8…………………………………………………………………………………22 -27 Nm ( 16 -20 ft.lb)

M10……………………………………………………………………………47-51 Nm ( 35-38 ft.lb)

M12………………………………………………………………………………66-82 Nm ( 49-60 ft.lb)

Automatic transmission

Torx® head bolts

M8………………………………………………………………………………….…..21 Nm ( 15 ft.lb)

M12………………………………………………………………………………….…72 Nm ( 53 ft.lb)

Hex-head bolts

M8………………………………………………………………………………..…24 Nm ( 18 ft.lb)

M10……………………………………………………………………………………45 Nm ( 33 ft.lb)

M12………………………………………….…………………78-86 Nm ( 58-63 ft.lb)

Exhaust manifold to cylinder

Head (nut) ……………………………………………………………..22-25Nm ( 16-18 ft.lb)

Fly wheel or drive plate to crankshaft…………………………………………..….105±7 Nm ( 77 ± 5 ft.lb)

Front end cover to engine (bolt)

M6………………………………………………………………………………………………9 ± 1 Nm ( 6.5 ± 0.5 ft.lb)

M8…………………………………………………………………………………………….….22 ± 2 Nm ( 16 ± 1 ft.lb)

Intake manifold to cylinder head (nut) ……………………………………………….30-33 Nm ( 22-24 ft.lb)

Intermediate shaft sprocket to

Intermediate shaft (bolt) …………………………………………………………………60 ± 5 Nm ( 44 ± 4 ft.lb)

Main bearing caps (nuts) …………………………………………………………………..58-63 Nm ( 43-46 ft.lb)

Oil cooler pipes to oil filter housing

325(is), 325i Convertible ……………………………………………………………… 30-40 Nm ( 22-30 ft.lb)

Oil filter to filter flange………………………………………………………………………………….….hand tighten

Oil filter housing to engine (bolt)

Except 325i(is), 325i Convertible………………………………………………..….24-26 Nm ( 18-19 ft.lb)

325i(is), 325i Convertible…………………………………………………………………40±5 Nm ( 30 ± 4ft.lb)

Oil pan to cylinder block………………………………………………………………………….9-11 Nm ( 7-8 ft.lb)

Oil pressure switch to cylinder head

Or cylinder block……………………………………………………………………………….30-40 Nm ( 22-30 ft.lb)

Oil pump to engine (bolt) ………………………………………………………….…….22 ± 2 Nm ( 16 ± 1 ft.lb)

Oil pump sprocket to oil pump ( bolt)

4-cylinder engine…………………………………………………………………………..25-30 Nm ( 18-22 ft.lb)

Oil supply tube to cylinder ( shoulder bolt)

4- cylinder engine……………………………………………………………………………11-13 Nm ( 8-10 ft.lb)

6- cylinder engine……………………………………………………………………………6-8 Nm ( 4.5-5.5 ft.lb)

Rear crankshaft oil seal carrier to engine

M6………………………………………………………………………………………..…….9 ±1 Nm ( 6.5 ± 0.5 ft.lb)

M8……………………………………………………………………………………….……….22 ± 2 Nm ( 16 ± 1 ft.lb)

Rear reinforcement plate

To transmission………………………………………………………………………………..22-24 Nm ( 16 -18 ft.lb)

Reference sensor mounting bolt………………………………………………….…….7 ± 1 Nm ( 5 ±0.5 ft.lb)

Rocker arm eccentric to rocker arm………………………………………………….10 ±1 Nm ( 89 ± 9 ft.lb)

Spark plugs to cylinder head…………………………………………………………….20-30 Nm ( 15-22 ft.lb)

Stater to bellhousing………………………………………………………………………..47-50 Nm ( 35-37 ft.lb)

Steering rack to subframe bolts………………………………………………………………….42 Nm ( 31 ft.lb)

Torque converter to converter driver plate

M8………………………………………………………………………………………………..23-26 Nm ( 17-19 ft.lb)

M10………………………………………………………………………………………….…………….46 Nm ( 34 ft.lb)

Upper and lower timing chain cover an drive belt covers to engine (bolt)

M6………………………………………………………………………………………………….….9-11 Nm ( 7-8 ft.lb)

M8…………………………………………………………………………..………………….22 ± 2 Nm ( 16 ± 1 ft.lb)

Vibration damper to crankshaft (nut)

4-cylinder engine………………………………………………………………..…190 ± 10 Nm ( 140 ± 7 ft.lb)

6-cylinder engine………………………………………………………….…………….22 ± 2 Nm ( 16 ± 1 ft.lb)

Vibration damper pulley to vibration damper

(bolt) …………………………………………………………………………………………..22 ± 2 Nm ( 16 ± 1 ft.lb)

 



 

Crankshaft and Bearing Specifications

Crankshaft main bearing journal diameter

4- cylinder engine

Standard ( nominal dia. 55.mm)

Red………………………………………………………………………….54.980 – 54.990mm (2.1646 – 2.1650 in)

Blue…………………………………………………………………..…….54.971 – 54.980mm (2.1642 – 2.1646 in)

Yellow…………………………………………………………………….54.984 – 54.990mm (2.1647 – 2.1650 in)

Green…………………………………………………….……………….54.977 – 54.983mm (2.1644 – 2.1647 in)

White……………………………………………………………..……….54.971– 54.976mm (2.1642 – 2.1644 in)

Undersize 1 ( nominal dia. 54.75 mm)

Red……………………………………………………………………..…….54.730 – 54.740mm (2.1547- 2.1551 in)

Blue……………………………………………………………………….….54.721 – 54.730mm (2.1544- 2.1547 in)

Yellow……………………………………………………………………….54.734 – 54.740mm (2.1549- 2.1551 in)

Green ……………………………………………………………………….54.727 – 54.733mm (2.1546- 2.1548 in)

White………………………………………………………………………..54.721 – 54.726mm (2.1544- 2.1546 in)

Undersize 2 ( nominal dia. 54.50mm)

Red……………………………………………………………………..…….54.480 – 54.490mm (2.1449- 2.1453 in)

Blue………………………………………………………………..……..….54.471 – 54.480mm (2.1445- 2.1449 in)

Yellow……………………………………………………………………….54.484 – 54.490mm (2.1450- 2.1453 in)

Green……………………………………………………………..…..…….54.477 – 54.483mm (2.1448- 2.1450 in)

White …..……………………………………………………………..…….54.471 – 54.476mm (2.1445- 2.1447 in)

Undersize 3 ( nominal dia. 54.25 mm)

Red…..……………………………………………………………..…….….54.230 – 54.240mm (2.1350- 2.1354 in)

Blue…………………………………………………………..……………….54.221 – 54.230mm (2.1347- 2.1350 in)

Yellow…………………………………………………………..………..….54.234 – 54.240mm (2.1352- 2.1354 in)

Green  …………………………………………………………..……….….54.227 – 54.233mm (2.1349- 2.1352 in)

White   …………………………………………………………..………….54.221 – 54.226mm (2.1347- 2.1349 in)

 

6- cylinder engine

Standard ( nominal dia. 60.00mm)

Red………………..…………………………………………………..….59.980 – 59.990mm (2.3614- 2.3618 in)

Blue ………..…………………………………………………………….59.971 – 59.980mm (2.3611- 2.3614 in)

Yellow………..…………………………………………………..………59.984 – 59.990mm (2.3616- 2.3618 in)

Green………..……………………………………………………….….59.977 – 59.983mm (2.3613- 2.3615 in)

White………..……………………………………………………….….59.971 – 59.976mm (2.3611- 2.3613 in)

Undersize 1 ( nominal dia. 59.75)

Red……………………………………….………………………………..59.730 – 59.740mm (2.3516- 2.3520 in)

Blue………………………………………………………………….….59.721 – 59.730mm (2.3512- 2.3516 in)

Yellow……………………………………………………………….….59.734 – 59.740mm (2.3517- 2.3520 in)

Green………………………………………………………………..….59.727 – 59.733mm (2.3515- 2.3517 in)

White………………………………………………………………..….59.721 – 59.726mm (2.3512- 2.3514 in)

Undersize 2 ( nominal dia. 59.50mm)

Red …………………………………………………………………….59.480 – 59.490 mm (2.3417- 2.3421 in)

Blue………………………………………………………………….….59.471 – 59.480 mm (2.3414- 2.3417 in)

Yellow………………………………………………………………….59.484 – 59.490 mm (2.3419- 2.3421 in)

Green……………………………………………………………….….59.477 – 59.483 mm (2.3416- 2.3418 in)

White……………………………………………………………….….59.471 – 59.476 mm (2.3414- 2.3416 in)

Crankshaft connecting rod journals

Connecting rod journal diameter

4-cylinder engine

Standard

(nominal dia. 48.00mm) ………………………………………….47.975 – 47.991 mm (1.8888- 1.8894 in)

Undersize 1

(Nominal dia. 47.75 mm) …………………..….                       47.725 – 47.741 mm (1.8789- 1.8796 in)

Undersize 2 ( nominal dia. 47.50 mm) …………………..….47.475 – 47.491 mm (1.8691- 1.8697 in)

Double classification

Standard  ………………………………………………………….….47.975 – 47.991 mm (1.8888- 1.8894 in)

Undersize 1………………………………………………………..….47.725 – 47.741 mm (1.8789- 1.8796 in)

Undersize 2………………………………………………………..….47.475 – 47.491 mm (1.8691- 1.8697 in)

Undersize 3………………………………………………………..….47.225 – 47.241 mm (1.8592- 1.8599 in)

6- cylinder engine

Standard (nominal dia. 45.00 mm) ….………………………..44.975 – 44.991 mm (1.7707- 1.7713 in)

Undersize 1( nominal dia. 44.75 mm) ….…………………….44.725 – 44.741 mm (1.7608- 1.7615 in)

Undersize 2 ( nominal dia. 44.50 mm) …………………..….44.475 – 44.491 mm (1.7510- 1.7516 in)

Double classification

Standard………………….………………………………………………44.975 – 44.991 mm (1.7707- 1.7013 in)

Undersize 1…………………………………………………. …..….44.725 – 44.741mm (1.7608- 1.7607 in)

Undersize 2…………………………………………………….. .….44.475 – 44.491 mm (1.7510- 1.7516 in)

Crankshaft thrust bearing width

4-cylinder engine

Standard…………………………………………………………….….30.020 – 30.053 mm (1.1819- 1.1832 in)

Oversize 1…………………………………………………………..….30.224 – 30.264 mm (1.1899- 1.1915in)

Oversize 2…………………………………………………………..….30.425 – 30.464 mm (1.1978- 1.1994 in)

Oversize 3…………………………………………………………..….30.625 – 30.664 mm (1.2057- 1.2072 in)

6-cylinder engine

Standard………………………………………………………….….25.020 – 25.053 mm (0.9850- 0.9863 in)

Oversize 1………………………………………………………..….25.220 – 25.253 mm (0.9929- 0.9942 in)

Oversize 2………………………………………………………..….25.420 – 25.453 mm (1.0008- 1.0021 in)

Crankshaft main bearing radial clearance ( Plastigage®  )

Red or blue classification……………………………………………0.030 – 0.070 mm (0.0012- 0.0028 in)

Yellow, green or white classification……………………….….0.020 – 0.046 mm (0.0008- 0.0018  in)

Crankshaft rod bearing radial clearance ( Plastigage®  )

No classification……………………………………………………………0.030 – 0.070 mm (0.0012- 0.0028 in)

Double classification……………………………………………….……0.020 – 0.055 mm (0.0008- 0.0022 in)

Crankshaft axial clearance

4- cylinder engine…………………..……………………………………0.085 – 0.174 mm (0.0033- 0.0069 in)

6- cylinder engine………………………………………………………..0.080 – 0.163 mm (0.0031- 0.0064in)

Maximum permissible crankshaft runout

4- cylinder engine ………………………………………………………………………………….0.10 mm (0.004 in)

6- cylinder engine……………………………………………………………………….……..……0.15 mm (0.006in)

Compression 4 cylinder and 6 cylinder  – 10 – 11 bar (142-156 PSI)

 

 

 

Piston, Piston Ring, and Cylinder Specifications

Cylinder bore diameter

4-cylinder engine

Standard………………………………………………………………………………89.00-0+0.01 mm (3.5039-0+0.0004 in.)

Special…………………………………………………………………………………89.08-0+0.01 mm (3.5071-0+0.0004 in.)

Oversize 1……………………………………………………………………………89.25-0+0.01 mm (3.5138-0+0.0004 in.)

Oversize 2……………………………………………………………………………89.50-0+0.01 mm (3.5236-0+0.0004 in.)

6-cylinder engine

Standard ……………………………………………………….……………………84.00-0+0.01 mm (3.3071-0+0.0004 in.)

Special ……………………………………………………………..…………………84.08-0+0.01 mm (3.31020+0.0004 in.)

Oversize 1 ……………………………………………………………………………84.25-0+0.01 mm (3.3169-0+0.0004 in.)

Oversize 2……………………………………………………………………………84.50-0+0.01 mm (3.3268-0+0.0004 in.)

Maximum out-of-round

4-cylinder engine……………………………………………………………………………………0.01 mm (0.0004 in.)

6-cylinder engine ………………………………………………………………..…………………0.03 mm (0.0012in.)

Maximum conicity

4-cylinder engine……………………………………………………………………………………0.01 mm (0.0004 in.)

6-cylinder engine …………………………………………………………………..………………0.02 mm (0.0008 in.)

Piston diameter

4-cylinder engine

Standard…………………………………………………………………………………….…….88.97 mm ( 3.5027 in )

Special ……………………………………………………………………………………………….89.05 mm ( 3.5059 in)

Oversize 1……………………………………………………………………………………….….89.22 mm ( 3.5126 in)

Oversize 2…………………………………………………………………………………….…….89.47 mm ( 3.5224 in)

6-cylinder engine

Standard …………………………………………………………………………………….…….83.98 mm ( 3.3063in)

Special ………………………………………………………………………………..…………….84.06 mm ( 3.3094 in)

Oversize 1………………………………………………………………………………………….84.23 mm ( 3.3161 in)

Oversize 2………………………………………………………………………………………….84.48 mm ( 3.3260 in)

Piston to cylinder clearance

4-cylinder engine

New ……………………………………………………………………………………….0.02-0.05 mm (.0008-0020 in)

Wear limit…………………………………………………..……………………………………………0.15 mm (0.006 in)

6- cylinder engine

New……………………………………………………………………………………….0.01-0.04 mm (0004-0016 in)

Wear limit…………………………………………………………………………………………0.12 mm ( 0.0047 in)

Piston ring end gap

4-cylinder engine

Upper compression ring ( top ring)………….…………………………………0.30- 0.70mm(0.012-0.028 in)

Lower compression ring ( middle ring ……………………………….……….0.20- 0.40mm(0.008-0.016 in)

Oil ring ( bottom ring)……………………………………………………………..…0.25- 0.50 mm (0.010-0.020 in)

6-cylinder engine

Upper compression ring ( top ring)………….…………………………………0.30- 0.50mm(0.012-0.020 in)

Lower compression ring ( middle ring ……………………………….……….0.30- 0.50mm(0.008-0.016 in)

Oil ring ( bottom ring)……………………………………………………………..…0.25- 0.50 mm (0.010-0.020 in)

 

Piston Skirt Measuring Points

Distance A

4- cylinder engine

Mahle…………………………………………………………………………………………………….14.00  mm (0.551 in)

KS ………………………………………………………………………………………………………….30.85 mm (1.215 in)

Alcan   …………………………………………………………………………………………………….15.50  mm (0.610in)

6-cylinder engine

325,325e models

Mahle

Piston height, 68.7 mm (2.705 in.)……………………………………………………………….8 mm ( 0.315 in )

KS

Piston height, 68.7 mm ( 2.705 in.)………………………………………………………………14 mm ( 0.551 in)

Mahle and KS

Piston height, 77.7 mm (3.059 in.) …………………………………………………………..…23 mm ( 0.905 in)

325i models

Mahle

Piston height, 73.6 mm (2.898 in. )………………………………………………………………9 mm( 0.354 in)

Piston ring side clearance

4-cylinder engine

Upper compression ring ( top ring )………………………………….0.06-0.09mm ( 0.0024-0.0035 in)

Lower compression ring ( middle ring) …………………………….0.03-0.072mm ( 0.0012-0.0028 in)

Oil ring ( bottom ring ) …………………………………………………….0.02-0.06mm ( 0.0008-0.0024in)

 

6- cylinder engine

Upper compression ring ( top ring ) ……………………………..….0.040-0.072mm ( 0.0016-0.0028 in)

Lower compression ring ( middle ring) ……………………………0.030-0.062mm ( 0.0012-0.0024 in)

Oil ring ( bottom ring ) ……………………………  ……………….….0.020-0.042mm ( 0.0008-0.0017 in)

 

 


Connecting Rod Specifications

Big end diameter

4-cylinder engine

Standard (no classification)……………………………………52.000 – 52.010 mm (2.0472 – 2.0476 in.)

Double classification

Red ………………………………………………………….………………52.000 – 52.008mm (2.0472 – 2.0475 in.)

Blue …………………………………………………………………..……52.009 – 52.016 mm (2.0476 – 2.0479 in.)

6-cylinder engine

Red …………………………………………………………………………48.000 – 48.008mm (1.8898 – 1.8901in.)

Blue………………………………………………………………….     …48.009 – 48.016 mm (1.8901- 1.8904in.)

Connecting rod bushing

Outside diameter………………………………………………………24.060 – 24.100 mm (0.9472 – 0.9488 in.)

Inside diameter

(Nominal diameter 22.0 mm) ………………………………….…22.003 – 22.008 mm (0.8662 – 0.8664 in.)

 

Maximum parallel deviation of connecting rod bores

(bearing shells installed )

At distance of 150 mm (5.905in) ………………………………………………………………..…0.04 mm (0.0016 in.)

Maximum deviation of weight between connecting rods ( bearing shells removed )

Total ………………………………………………………………………………………………………….± 4.0 grams (.14 oz.)

Small end only……………………………………………………………………………………………± 2.0 grams (.07oz.)

Big end only………………………………………………………………………………………………± 2.0 grams (.07oz.)

Connecting rod bolt torque

4- cylinder engine ………………………………………………………………………………52-57 Nm (38 – 42 ft.lb)

6- cylinder engine- ……………………………………………………20Nm (14.5 ft. lb.) plus an additional 70o

 

 

 

 

Valve and Cylinder Head Specifications

Cylinder head thickness

4- cylinder

New……………………………………………………………………………………..129.0± 0.1mm (5.079 ± .004 in.)

After machining………………………………………………………………………    …………128.6 mm (5.063 in.)

6- cylinder

New………………………………………………………………………………………125.1± 0.1mm (4.925 ± .004 in.)

After machining …………………………………………………………… ………… …………124.7 mm (4.909 in.)

Valve guide wear, maximum

(measured with new valve)…………………………………………………………………………0.8 mm (0.031 in.)

Valve guide inside diameter ( tolerance per ISO allowance  H7)

4- cylinder engine

Standard……………………………………………………..……………………………………………8.0 mm (0.315in.)

Oversize 1…………………………………………………………..……………………………………8.1 mm (0.319 in.)

Oversize 2…………………………………………………………………….……………………………8.2 mm (0.323 in.)

Valve guide inside diameter ( tolerance per ISO allowance  H7)

6- cylinder engine

Standard……………………………………………………..……………………………………………7.0 mm (0.275in.)

Oversize 1…………………………………………………………..…………………………………… 7.1 mm (0.279 in.)

Oversize 2…………………………………………………………………….……………………………7.2 mm (0.283 in.)

Valve guide outside diameter ( tolerance per ISO allowance u6)

4-cylinder engine

Standard…………………………………………………………………………………………………14.0 mm (.5512 in.)

Oversize 1……………………………………………………………………………………….………14.1 mm (.5551 in.)

Oversize 2…………………………………………………………………………………….…………14.2 mm (.5590 in.)

Oversize 3……………………………………………………………………………………….………14.3 mm (.5630 in.)

6-cylinder engine

Standard

Old version………………………………………………………………………………………….13.0 mm (.5118 in.)

New version……………………………………………………………………………….……….13.2 mm (.5197 in.)

Oversize 1

Old version………………………………………………………………………………………….13.1 mm (.5157 in.)

New version……………………………………………………………………………………..….13.3 mm (.5236 in.)

Oversize 2

Old version …………………………………………………………………………………..…….13.2 mm (.5197 in.)

New version…………………………………………………………………………………….….13.4 mm (.5276 in.)

Oversize 3………………………………………………………………………………………………..13.3 mm (.5236in.)

Valve guide bore diameter in cylinder head ( tolerance per ISO allowance M7)

4-cylinder engine

Standard…………………………………………………………………………………………………14.0 mm (.5512 in.)

Oversize 1……………………………………………………………………………………….………14.1 mm (.5551 in.)

Oversize 2…………………………………………………………………………………….…………14.2 mm (.5590 in.)

Oversize 3……………………………………………………………………………………….………14.3 mm (.5630 in.)

6-cylinder engine

Standard

Old version………………………………………………………………………………………….13.0 mm (.5118 in.)

New version……………………………………………………………………………….……….13.2 mm (.5197 in.)

Oversize 1

Old version………………………………………………………………………………………….13.1 mm (.5157 in.)

New version……………………………………………………………………………………..….13.3 mm (.5236 in.)

Oversize 2

Old version …………………………………………………………………………………..…….13.2 mm (.5197 in.)

New version…………………………………………………………………………………….….13.4 mm (.5276 in.)

Oversize 3………………………………………………………………………………………………..13.3 mm (.5236in.)

Valve guide installation temperature

Cylinder head………………………………………………………………………………………………..122oF (50oC)

Valve guide……………………………………………………………………………………………..-238oF (-150o C)

Valve guide installed depth ( height above cylinder head surface)

4-cylinder engine…………………………………………………………………………………….15.0mm (.5906 in.)

6-cylinder engine……………………………………………………………………………………14.5mm (.5709 in.)

Valve seat dimensions

Seat angle……………………………………………………………………………………………………………………45o

Seat correction angles…………………………………………………………………………………………..15o/75o

Seat width ( intake and exhaust)

4- Cylinder engines…………………………………………………………… … 1.3 – 2.0 mm (0.051 -0.079 in.)

6- Cylinder engines………………………………………………………………1.65±0.35mm (0.065 ± 0.014 in.)

Seat diameter

1984 and 1985 3 18i models

Intake …………………………………………………………………………………………….44.6 mm (1.756 in.)

Exhaust…………………………………………………………………………………………..36.6 mm (1.441 in.)

1984-1987 325, 325e, 325es

Intake …………………………………………………………………………………………..38.6 mm (1.520 in.)

Exhaust………………………………………………………………………………………….32.6 mm (1.283 in.)

325i (is), 325i Convertible, 1988 325

Intake…………………………………………………………………………………………….40.6 mm (1.598 in.)

Exhaust ………………………………………………………………………………………….34.6 mm (1.362 in.)

Valve seat insert outside diameter

(tolerance as per ISO allowance g6)

1984 and 1985 318i models

Intake

Standard…………………………………………………………………………………….……….47.15 mm (1.8562 in.)

Oversize 0.2mm……………………………………………………………………….………….47.35 mm (1.8642 in.)

Oversize 0.4mm…………………………………………………………………………….…….47.55 mm (1.8720 in.)

Exhaust

Standard ………………………………………………………………………….………………….40.15 mm (1.5807 in.)

Oversize 0.2mm………………………………………………………………………………..….40.35mm (1.5886 in.)

Oversize 0.4mm………………………………………………………………………………….….40.55 mm (1.5964 in.)

1984-1987 325, 325e, 325es

Intake

Standard………………………………………………………………………………………………42.15mm (1.6594 in.)

Oversize 0.2mm……………………………………………………………………………………42.35mm (1.6673 in.)

Oversize 0.4mm……………………………………………………………………………………42.55 mm (1.6752 in.)

Exhaust

Standard………………………………………………………………………………………………37.65mm (1.4823 in.)

Oversize 0.2 mm…………………………………………………………………………………37.85 mm (1.4902 in.)

Oversize 0.4 mm…………………………………………………………………………………38.05 mm (1.4980 in.)

1988 325 and all 325i models

Intake

Standard……………………………………………………………………………………………….. 43.15 mm (1.6988 in.)

Oversize 0.2mm……………………………………………………………………………………..43.35 mm (1.7067 in.)

Oversize 0.4mm………………………………………………………………………………………43.55 mm (1.7146 in.)

Exhaust

Standard…………………………………………………………………………………………….37.65 mm (1.4823 in.)

Oversize 0.2mm………………………………………………………………………………….37.85 mm (1.4902 in.)

Oversize 0.4mm………………………………………………………………………………….38.05 mm (1.4980 in.)

Valve seat bore diameter in cylinder head

( tolerance as per ISO allowance H7)

1984 and 1985 3 18i models

Intake

Standard……………………………………………………………………………………………47.00 mm (1.8504 in.)

Oversize 0.2 mm…………………………………………………………………………………47.20 mm (1.8583 in.)

Oversize 0.4mm……………………………………………………………………………….…47.40 mm (1.8661 in.)

Exhaust

Standard……………………………………………………………………………………………..40.00 mm (1.5748 in.)

Oversize 0.2 mm………………………………………………………………………………… 40.20 mm (1.5827 in.)

Oversize 0.4 mm………………………………………………………………………………… 40.40 mm (1.5905 in.)

1984-1987 325, 325e, 325es

Intake

Standard ……………………………………………………………………………………………42.00 mm (1.6535 in.)

Oversize 0.2mm…………………………………………………………………………………42.20 mm (1.6614 in.)

Oversize 0.4mm…………………………………………………………………………………42.40 mm (1.6693 in.)

Exhaust

Standard ……………………………………………………………………………………………37.50 mm (1.4764 in.)

Oversize 0.2mm…………………………………………………………………………………37.70mm (1.4842 in.)

Oversize 0.4mm…………………………………………………………………………………37.90mm (1.4921 in.)

1988 325 and all 325i models

Intake

Standard ……………………………………………………………………………………………43.00mm (1.6929 in.)

Oversize 0.2mm…………………………………………………………………………………43.20mm (1.7008 in.)

Oversize 0.4mm…………………………………………………………………………………43.40mm (1.7086 in.)

Exhaust

Standard ……………………………………………………………………………………………37.50mm (1.4764 in.)

Oversize 0.2mm………………………………………………………………………………….37.70mm (1.4842 in.)

Oversize 0.4mm……………………………………………………………………………………37.90mm (1.4921 in.)

Cylinder head installation temperature

All models…………………………………………………………………………………………………………122oF (50o C)

Valve seat insert installation temperature

All models……………………………………………………………………………………………………..-238oF (-150oC)

Valve head diameter

1984 and 1985 3 18i

Intake ……………………………………………………………………………………………….……46 mm (1.811 in.)

Exhaust ……………………………………………………………………………………………….…38 mm (1.496 in.)

1984-1987 325, 325e, 325es

Intake …………………………………………………………………………………………..……..…40 mm (1.575 in.)

Exhaust …………………………………………………………………………………………..………34 mm (1.339 in.)

325i(is), 325i Convertible, 1988 325

Intake ……………………………………………………………………….……………………..…42 mm (1.654 in.)

Exhaust…………………………………………………………………………………………………36 mm (1.417 in)

Valve head thickness ( minimum)

Intake…………………………………………………………………………………………………1.3 mm (0.051 in.)

Exhaust………………………………………………………………………………..………………2.0 m (0.079 in.)

Valve face angle………………………………………………………………………………………………………………45o

Valve stem diameter

4- cylinder engine

Standard………………………………….…………………………………………………………8.0mm (0.315 in.)

Oversize 1………………………………….…………………………………………………………8.1 mm( 0.319 in)

Oversize 2……………………………………………………………………………………………8.2 mm (0.323 in.)

6- cylinder engine

Standard…………………………………….………………………………………………………7.0 mm (0.275 in.)

Oversize 1……………………………………………………………………………………………7.1 mm (0.279 in.)

Oversize 2……………………………………………………………………………………………7.2 mm (0.283 in.)

Valve clearance

Engine warm ( coolant temperature above 176 F (80 C))

Intake and exhaust

4-cylinder……………………………………………………………………………………………0.25 mm (0.010 in.)

6-cylinder ……………………………………………………………………………………………0.30 mm (0.012in.)

Engine cold ( coolant temperature below 95 F ( 35C))

Intake and exhaust

4-cylinder……………………………………………………………………………………………0.20 mm (0.008 in.)

6-cylindr……………………………………………………………………………………..………0.25 mm (0.010 in.)

Rocker arm radial play …………………….between 0.016 mm and 0.052 mm (0.0006 and 0.0020 in.)

 

 

Flywheel or Drive Plate Specifications

Maximum axial runout (measured at outer diameter) – 0.10 mm (0.004 in)

Minimum flywheel thickness

4 cylinder – 23.5mm (0.925in)

1984 6 cylinder engines – 25.0mm (0.984 in.)

1985-1990 6 cylinder engines – 32.0 mm (1.260in)

Mounting bolt tightening torque (installed with Loctite 270) – 105 ± 7 Nm (77 ± 5 ft. lb)

Starter ring gear replacement temperature (manual transmission only) – 395 o -445 o F (200 o -230 o C)

 

Lubrication System Specifications

Oil pressure at idle

4 cylinder – 0.5 – 2.0 bar (7-28psi)

6 cylinder – 0.5 – 2.0 bar (7-28psi)

Oil pressure at maximum engine speed

4 cylinder – 4.0 – 5.0 bar (57-71psi)

6 cylinder – 4.0 – 6.0 bar (57-85psi)

 

 

Ignition Specifications

 

TCI-I Ignition System Specifications (Bosch control unit)

Ignition control unit code number……………………..……………..…………………..………………..0 227 100 111

Ignition coil code number………………………………………………….……………………0 221 122 319 (gray label)

Distributor code number

1984 (early) ……………………………………………………………………………………………………….…0 237 002 080

1984 and 1985……………………………………………………………………….……………………………..0 237 002 096

Ignition timing ( vacuum hose disconnected at distributor)

0 237 002 080 distributor……………………………………………………………..….15o BTDC @2000 ± 50 rpm

0 237 002 096 distributor …………………………………………………………………..26o BTDC@4000± 50 rpm

Engine idle speed

0 237 002 080 distributor………………………………………………………………………………..……..750 ± 50 rpm

0 237 002 096 distributor

Manuel transmission …………………………………………………………………………………………850 ± 50 rpm

Automatic transmission………………………………………………………………..……………………750 ± 50 rpm

 

 

Motronic (DME) Ignition System Specifications

Ignition coil code number………………………………………….0 221 118 335 (yellow label)

Firing order ……………………………………………………………………….……1 – 5 – 3 – 6 – 2 – 4

Spark plugs

1984-1987 325 and 325 e (es)

Bosch……………………………………………………………………………………………….WR9LS

Beru…………………………………………………………………………..…………………14R/9 LS

325i (is), 1988-1990 325

Bosch ………………………………………..…………………………………………………….W8LCR

Spark plug gap……………………………………………..………….0.7 + 0.1 mm (.027 + .004 in.)

Spark plug tightening torque……………………………………..…20 – 30 Nm (15 – 22 ft.lb.)

Reference or speed sensor coil resistance

(325e, 325es engine) ………………………………………..…………………………960 ± 96 ohms

Pulse sensor coil resistance

(Motronic 1.1) ………………………………………..……………………………540 ± 54 oms

Ignition rotor tightening torque

( 6- cylinder engines) ………………………………………..………………..3 Nm (27 in.lb.)

Reference, speed, or pulse sensor

Tightening torque………………………………………..………….7± 1 Nm (62 ± 9 in. lb.)

 

 

 

 

 

Fuel system Specifications

L—Jetronic Fuel injection Specifications ( 1984 and 1985 318i models)

Fuel pump delivery rate

With fuel pump operated for 30 seconds………………..…………………………..…875 ml (30 oz.)

Transfer pump delivery pressure……………………………………………..……………0.3 bar (4.3 psi)

System fuel pressure…………………………………………..……………….3.0 ± 0.06 bar (43.5± 0.9 psi)

System Regulating pressure…………………………………………………2.8-3.2 bar (40.6-46.4 psi)

Fuel injector coil resistance

Code no 0 280 150 704………………………………………………………………………..…14.5 -17.5 ohms

Code no  0 280 150 211………………………………………………………………………..…14.5 -17.5 ohms

Idle speed ( non-adjustable) ……………………..………………………………………..…750/850 ± 50 rpm

 

Motronic Fuel Injection Specifications

(1984-1987 325, 325e models)

Fuel pump delivery rate

With fuel pump operated for 30 seconds………………………………………….…875ml (30 oz.)

Transfer pump delivery pressure………………………………………..……………..0.3 bar (4.3 psi)

System fuel pressure………………………………………………….…..2.5 ± 0.05 bar (36.3 ±0.7 psi)

System regulation pressure…………………………………………….…2.3 – 2.7 bar ( 33.4 -39 psi)

Fuel injector coil resistance

Code no 0 280 150 716………………………………………..………………………14.5 -17.5 ohms

Code no  0 280 150 126………………………………………..……………………….2.0 – 3.0 ohms

Idle speed ( non-adjustable) ………………………………………..………………..700 ± 50 rpm

Idle mixture ………………………………………..………………………………………….0.2 – 1.2 % CO

 

 

 

Motronic 1.1 Fuel Injection Specifications ( 1988 325 and all 325i models)

Fuel pump delivery rate

With fuel pump operated for 30 seconds………………………………………..…875 ml (30 oz.)

System fuel pressure

1988 325………………………………………………..…………….………2.5 ± 0.05 bar (36.3 ± 0.7 psi)

325i, 325is, 325iC………………………………………………….…..…3.0 ± 0.06 bar (43.5 ± 0.9 psi)

System regulating pressure

1988 325………………………………………………………..……………..2.3 – 2.7 bar ( 33.4 – 39 psi)

325i, 325is, 325iC……………………………………………………..…2.8 – 3.2 bar (40.6 – 46.4 psi)

Fuel injector coil resistance

Code no. 0 280 150 715…………………………………………..………………..…14.5 – 17.5 ohms

Code no.  0 280 150 126……………………………………………………….……..…2.0 – 3.0 ohms

Idle speed ( non-adjustable)

1988 325…………………………………………………………………..………………………720 ± 40 rpm

325i, 325is, 325iC……………………………………………………………………….…..…760 ± 40 rpm

Idle mixture ( non-adjustable)

1988 325…………………………………………………………………………………………0.2 – 1.2 % CO

325i, 325is, 325iC…………………………………………………………………………..…0.4 – 0.8% CO

 

Cooling System Specifications

Cooling system leakage test

Maximum test pressure……………………………………………………………..……………..…1 bar (14psi)

Expansion tank cap

Opening pressure……………………………………………………………….…see specification on cap top

Thermostat opening temperature

4-cyliner engines

Begins to open…………………………………………………………………………….…………..…176oF (80oC)

Fully open ……………………………………………………………………….…………………..…212oF ( 100oC)

Thermostat stroke…………………………………………………………………8 ±1 mm ( 5/16 ± 3/64 in.)

6-cyliner engines

Begins to open…………………………………………………………………….…………….…..…176oF (80 o C)

Fully open………………………………………………………………………………..…………………….…..…N/A

Thermostat stroke……………………………………………………………………..……………………….…N/A

Cooling fan thermos –switch switching temperature

Low-speed

ON (switch closed) ………………………………………….…………………………………..…196oF (91oC)

High-speed

ON (switch closed) …………………………………………………..…………………………..…210oF (99oC)

Colling system capacity

3 18i……………………………………………………………………………………..………..…7.0 ltres. (7.4qts)

325e (es),325…………………………………………………………………………..…11.0 ltres. (11.6qts)

325i (is), 325i convertible…………………………………………………………..…10.5 ltres (11.1 qts)

Coolant type. …………………………….………………..…Phosphate-free, containing ethylene glycol

 

Cooling system Torque specs

Automatic transmission cooler lines to

Radiator…………………………………………………………………………………18+3-0 Nm (13 +2-0  ft. lb.)

Coolant pump pulley to

Coolant pump (bolt) …………………………………………………………………..…9 ± 1 Nm (80 ± 5in.lb)

Coolant pump to cylinder block

M6 bolt……………………………………………………………………………………..…9 ± 1 Nm (80 ± 5in.lb)

M8 bolt………………………………………………………………………………..…22 ± 2 Nm ( 16± 1 ft.lb)

Coolant primary fan to

Coolant fan clutch………………………………………….…………………………..…9 ± 1 Nm (80 ± 5in.lb)

Coolant fan clutch to coolant pump

With special tool (BMW Part N0. 11 5 040) .…………………………………..…30 Nm ( 22 ft.lb)

Without special tool…………………………………………………………………..…..…40 Nm (29 ft. lb)

Coolant temperature sending unit to

Cylinder head water outlet………………………………….……………..…18± 1 Nm (13 ± 1 ft. lb.)

Thermos-switch to radiator

(Maximum permissible) ………………………………………………………………..…15 Nm (11 ft. lb.)

Upper radiator mounting

To body (nut) ……………………………………………………………..……………..…9 ± 1 Nm (80 ± 5in.lb)

 

 

 

 

Exhaust System and Emissions controls Torque specs

Front exhaust pipe to rear exhaust pipe

(nut or Bolt) …………………………………………………………..…………..…………22 – 24 Nm (16-17 ft. lb.)

Exhaust manifold to

Cylinder head (nut) …………………………………………………………..…………22 – 24 Nm (16-17 ft. lb.)

Front exhaust pipe to exhaust manifold (nut)

1st stage…………………………………………………………..……………………………30 – 35 Nm (22- 25 ft. lb.)

2nd stage…………………………………………………………..…………………………..50 – 55 Nm (36 -40 ft. lb.)

Front exhaust pipe clamp to exhaust

Pipe (nut or bolt) …………………………………………………………..……………..…22 – 24 Nm (16-17 ft. lb.)

Front exhaust pipe bracket to transmission

Bracket (nut or bolt)………………………………………………………………………… 22 – 24 Nm (16-17 ft. lb.)

Heat shield to exhaust system

(self-tapping screw) ……………………………………………..…………..……………………..7-8 Nm ( 5-6 ft.lb.)

Oxygen sensor to exhaust manifold

Or exhaust pipe…………………………………………………………..……………………….55 ± 5 Nm (41 ± 3 ft.lb.)

Rear muffler clamp to rear muffler

Maximum permissible (clamping bolt)

4-cylinder engine…………………………………………………..………..…………………………16 Nm ( 12 ft. lb.)

6-cylinder engine…………………………………………………………..………………………….14 Nm ( 10 ft. lb.)

Rear muffler clamping bracket to

Rear axle (bolt) …………………………………………………………………..…………22 – 24 Nm (16-17 ft. lb.)

Front pipe clamping bracket to transmission bracket

(rubber mounts)

M6 bolts…………………………………………………………..…………………………………..9 -10 Nm ( 7 -8 ft. lb.)

M8 bolts…………………………………………………………..………………………..……22 – 24 Nm (16-17 ft. lb.)

 

 

Manual transmission Torque specs

Shift console rear mounting nut  ……………………………………………………………………11Nm ( 8ft. lb.)

Sheet-metal console to transmission

(bolts, with locking compound) …………………………………………………………………23 Nm (17ft.lb.)

Transmission support bolts………………………………………………………………………22-24 Nm (16-18 ft.lb)

Clutch master cylinder mounting bolts………………………………………………………………………9 Nm (7ft.lb)

Clutch master cylinder pushrod

To clutch pedal (bolt) …………………………………..……………………………………………21 Nm ( 15ft.lb.)

Clutch master cylinder pushrod locknut……………………….………………………………………………………4

Clutch hydraulic hose connections………………………………..………………………13-16 Nm (10 -12 ft. lb.)

Clutch slave cylinder mounting nuts………………………………………………………24 Nm (118 ft.lb)

Clutch pressure plate mounting bolts

Grade 8.8……………………………………………..………………….………………….……22-24 Nm (16-18 ft.lb)

Grade 10.9………………………………………………………………..………………………30-35 Nm (22-26 ft.lb)

Transmission to engine ( hex head).

M8……………………………………………………………………………………..……………22-27 Nm (16-20 ft.lb)

M10……………………………………………………………………………………………..…47-51 Nm (35-38 ft.lb.)

M12………………………………………………………………………………….……………66-82 Nm (49-60 ft. lb.)

Transmission to engine ( Torx- head)

M8………………………….………………………………………………………………………20-24 Nm (15-18 ft.lb)

M10………………………………………………..……………………………………………38-47 Nm ( 28-35 ft. lb.)

M12………………………………………………..………………………………………………64-80 Nm (47-59 ft. lb.)

Rear transmission support

To body (nut) ……………………………………………………………………….…………22-24 Nm (16-18 ft.lb)

Transmission rubber mount

(nut, to transmission or support) …………………………………………………..43-48 Nm (32-35 ft. lb.)

Transmission drain plug/fill plug……………………………….………………………40-60 Nm (30-44 ft. lb.)

Transmission output flange collar nut

Getrag 240/260

Initial………………………………………………………………………………………………….170 Nm ( 125 ft. lb.)

Final……………………………………………..………………………………………………………120 Nm (89 ft. lb.)

ZF……………………………………………………………………………………………100-120 Nm ( 74 -89 ft. lb.)

Release bearing guide sleeve (bolt)

M8 x 22……………………………………..……………………………………………………………18 Nm ( 13 ft. lb.)

M8 x 30…………………………………………..…………………………………………………………25 Nm (18 ft.lb)

M6……………………………………………………………………………………….…………………10 Nm (89 in . lb.)

Getrag Transmission Assembly Tightening Torques

Front transmission case

To rear case (bolt) …………………………………………………….……………………………25 Nm (18 ft.lb)

Drive Flange to output shaft (nut)

I      initial torque…………………………………………………………………………….………170 Nm ( 127 ft. lb)

Reverse gear shaft to

Transmission case (bolt) …………………………………………………………………………25 Nm (18 ft.lb)

Reverse gear shaft retaining bracket

To transmission case (bolt) ………………………………………………………………………25 Nm (18 ft.lb)

Detent ball and spring locking pate

To transmission case (bolt)………………………………………………………………………10 Nm ( 89 in. lb.)

Clutch guide sleefe to

Front transmission case…………………………………………………..……………………….10 Nm ( 89 In. lb.)

Back-up light switch to transmission case. …………………………………………….6-10 Nm ( 53 -89 in. lb)

 

 

Transmission Tolerances, Wear Limits and Settings.

Shift fork guide wear limit………………………………………………………………….4.8 mm (0.189 in.)

Layshaft axial play, maximum…………………………………..…0.13 -0.23 mm (0.005 – 0.009 in.)

Output shaft axial play, maximum…………………………………………0 – 0.09 mm (0 – 0.0035 in)

Input shaft axial play, maximum………………………………………..…0 – 0.09 mm (0 – 0.0035 in.)

Output shaft radial runout, maximum……………………………………………0.07 mm ( 0.0027 in.)

Guide sleeve pressing-off force (maximum permissible)

1st/2nd gear

Getrag 240…………………………………………………………….3.0 tons

Getrag 260…………………………………………………………….3.7 tons

3rd/4th gear

Getrag 240…………………………………………………………….2.7 tons

Getrag 260…………………………………………………………….3.0 tons

5th/Reverse gear

Getrag 240…………………………………………………………….3.0 tons

Getrag 260…………………………………………………………….3.7 tons

Guide sleeve pressing on force ( maximum permissible)

1st/2nd gear

Getrag 240…………………………………………………………….2.1 tons

Getrag 260…………………………………………………………….2.5  tons

3rd/4th gear

Getrag 240…………………………………………………………….1.9 tons

Getrag 260…………………………………………………………….2.1 tons

5th/Reverse

Getrag 240…………………………………………………………….2.1 tons

Getrag 260……………………………………………………………2.5 tons

Synchronizer ring specifications

(measured between ring and gear)

Forward gears

New ………………………………………………………………………….1.0 – 1.3 mm (0.039 – 0.051 in.)

Wear limit………………………………………………………………………………..………0.8mm (0.031 in.)

Reverse

New ………………………………………………………………………….……0.5 – 0.6 mm (0.020-0.024 in.)          Wear limit…………………………………………………………………………………………..…….0.4 mm (0.016 in.)

Transmission case bearing

Installation temperature…………………………………………………………………………….176oF (80oC )

 

 

 

Clutch Tolerances, Wear Limits and Settings

Slave cylinder pushrod travel ( measured with

Slave cylinder installed)………………………………………………….. at least 20 mm (3/4 in.)

Clutch pedal adjustment

(measurement from firewall)………………………………………….253 mm-0+11 (10 in -0 +4 )

Release lever tips deviation

From parallel, maximum…………………………………………………0.6 mm (.024 in.)

Clutch disc runout, maximum………………………………………………0.5 mm (.020 in.)

Clutch disc thickness, minimum …………………………………………..7.5 mm (.295 in.)

 

 

 Manual Transmission Gear Rations

Transmission type Getrag 240 ZF S5-16 Getrag 206
Gear ratios

1st gear

2nd gear

3rd gear

4th gear

5th gear

Reverse gear

 

3.72

2.02

1.32

1.00

0.81

3.45

 

3.72

2.04

1.34

1.00

0.80

3.54

 

 

3.83

2.20

1.40

1.00

0.81

3.46

 

 

 

Automatic Transmission Specifications

Stall speed specifications
Transmission

 

Model Converter Code Stall speed ( rpm)
3 HP 22

 

All P 197-2070
4 HP 22 H

 

318i

325, 325e(es)

(through 1987)

325i, 325i Convertible

(through1987)

325e (1988-1990)

325I, 325I Convertible (1988-1990)

U4

R2

 

W2

 

C7

W2

1980-2220

1900-2050

 

2210-2420

 

1900-2100

2200-2400

4 HP 22 EH 325,325i, 325i Convertible R2 2210-2420
Main pressures
3 HP 22 Transmission accelerator cable pulled out to kickdown position in R 16.5 to 18.3 bar

(240 to 265 psi)

At 1500 rpm, all other drive ranges except in R 5.5 to 6.4 bar

(80 to 93 psi)

Transmission accelerator cable pulled fully out to kickdown position in all other drive ranges except R 7.2 to 8.0 bar

(104 to 116 psi)

4 HP 22 At idle, in D 6.0 to 7.5 bar

(87 to 109 psi)

At idle, in R 11 to 13

(160 to 189 psi)

At 4000 rpm, on road in any gear from 2 to 4 4.6 to 5.8 bar

(67 to 84 psi)

 

Torque Specs

Transmission to engine (hex-head)……………………………………..M8 : 24 Nm ( 18 ft. lb.)

M10: 45 Nm ( 33 ft. lb.)

M12: 78- 86 Nm (58 -63 ft. lb.)

Transmission to engine ( Torx-head)…………………………………..M8 : 21 Nm (15 ft. lb. )

M12 : 72 Nm ( 53 ft. lb.)

Rear transmission support ( to body)…………………………..……..22-24 Nm ( 16-18 ft. lb.)

Rear transmission support ( to transmission)………………….….43 -48 Nm ( 32-35 ft. lb.)

Torque converter to drive plate………………………………………..M8: 25 -27( 18 -20 ft. lb.)

M 0: 47-51 Nm (35 -38 ft.lb.)

Transmission reinforcement plate……………………………………..22-24 Nm (16-18 ft. lb.)

ATF cooler lines to transmission case………………………………….35-0+3 Nm ( 26-0+2 ft. lb.)

ATF filler tube to ATF sump

3 HP 22………………………………………………………………………100- 115 Nm ( 74 -85 ft. lb.)

4 HP 22 H/EH………………………………………………………………………..98 Nm ( 72 ft. lb)

AFT sump drain plug…………………………………………………….M 10 : 15 -17 Nm ( 11-13 ft.lb.)

Output flange collar nut…………………………………………………………………..100 Nm (  74 ft. lb.)

Pressure tap pug……………………………………………………………………….40-46 Nm ( 30 -34 ft. lb.)

Manual valve lever to transmission……………………………………………..….8 -10 Nm ( 6 -7 ft. lb)

Drive plate flywheel

M 12…………………………………………….113- 130 Nm ( 82 – 94 ft. lb.)

 

 

Automatic Transmission Specs

Model 318i 318i 318i 325 325e(es) 325 325i, Convertible 325i, Convertible
Type 3 HP 22 4 HP 22 H 4 HP 22 H 4 HP 22 EH 4 HP 22 EH 4 HP 22 H
Code letters RX UC, XX VM, XS AB, TY, XG, AB, AT AR AP AC, GA
Torque  Converter code P U4 C7, R2 R2 R2 W2
Gear rations

1st gear

2nd gear

3rd gear

4th gear

Reverse

 

2.73

1.56

1.0

N/A

2.09

 

2.73

1.56

1.0

0.73

2.09

 

2.48

1.48

1.0

0.73

2.09

 

2.48

1.48

1.0

0.73

2.09

 

2.48

1.48

1.0

0.73

2.09

 

2.48

1.48

1.0

0.73

2.09

 

 

Driveshaft and Final Drive

Driveshaft Flange Runout Specifications

Axial play

Transmission output flange…………………………….0.10 mm ( .004 in. ) maximum)

 

Radial play

Transmission output flange……………………………..0.07 mm ( .003 in) maximum

Final drive input flange

(measured at driveshaft centering lip)……………0.07 mm ( .003 in.) maximum

 

Universal Joint Play Specifications

Maximum allowable play………………………………….0.15 mm ( .006 in.)

 

Driveshaft Installation Specifications

Center bearing preload

(towards front of car)………………………………………..4-6 mm (.157 – .236 in. )

 

Tightening Torques

Driveshaft to final drive, bolt and nut………………… 72 Nm ( 53 ft. lb.)

Flexible coupling transmission or driveshaft

M10, 8.8 bolt and nut……………………………………46  Nm ( 34 ft. lb.)

M10 10.9 bolt and nut…………………………….………72 Nm ( 53 ft. lb.)

M12 bolt and nut…………………………………….……123 Nm ( 91 ft. lb.)

Center bearing to body, bolt………………………….…….22 Nm ( 16 ft. lb.)

Clamping sleeve for splined coupling………………..….17 Nm ( 13 ft. lb.)

Final drive to rear axle carrier, bolts

1984- 1987……………………………………….110 – 123 Nm ( 81 -91 ft. lb.)

1988- 1990………………………………………………..………80 Nm ( 59 ft. lb.)

Final drive flange to input shaft, collar nut

318i…………………………………………………….at least 150 Nm (111 ft. lb.)

Until matching marks line up.

Other models ……………………………………at  least 310 Nm ( 229 ft. lb)

Until matching marks line up.

 

Speedometer pulse to sender to final drive………………….10 Nm ( 7 ft. lb)

Inner CV joint Hex bolts to differential ……… 58 – 63 Nm (42-46 ft. lb)

Rear axle nut (securing CV shaft to rear hub) ………… 195 – 210 Nm (144 to 155 ft. lb.)

 

 

 

 

Brakes Tolerances, Wear Limits and settings

Brake rotor, front solid

Thickness after machining (minimum)…………………………………11.1 mm (0.437 in.)

Wear limit (minimum thickness)………………………………………….10.7 mm (0.421 in.)

Axial runout ( maximum permissible)

Rotor installed………………………………………………………………….0.20 mm (0.008 in.)

Rotor removed…………………………………………………………………0.05 mm (0.002 in.)

Thickness tolerance

(Maximum permissible)…………………………………….………..0.02 mm (0.0008 in.)

Brake rotor, front ventilated

Thickness after machining (minimum) ……………………………23.4 mm (0.921 in.)

Wear limit (minimum thickness) …………………………………….23 mm (0.905 in.)

Axial runout ( maximum permissible)

Rotor installed………………………………………………….……………0.20 mm (0.008 in.)

Rotor removed……………………………………..…………….…………0.05 mm (0.002 in.)

Thickness tolerance

(Maximum permissible) ……………………………………………0.02mm (0.0008 in.)

Brake drum, rear

Inside diameter, maximum

After resurfacing…………………………………………………………229.5 mm (9.035 in.)

Radial runout (maximum permissible)………………………..0.05 mm (0.002 in.)

Brake rotor, rear

Thickness after machining (minimum)…………………………8.4 mm (0.331 in.)

Wear limit (minimum thickness)…………………………………8.0 mm (0.315 in.)

Axial runout ( maximum permissible)

Rotor installed………………………………………………………… 0.20 mm (0.008 in.)

Rotor removed………………………………………………………..  0.05 mm (0.002 in.)

Thickness tolerance (maximum permissible)………………………0.02 mm (0.0008 in.)

 

Brake Torque specs

Front brake caliper to steering

Knuckle (bolt)………………………………………………….……………110- 123 Nm (80- 89 ft.lb.)

Front brake caliper to guide bolt

(Self-locking bolt)………………………..…………………………………..31- 35 Nm (23- 25 ft.lb.)

Rear brake caliper to brake pad

Carrier ( guide bolt)………………………………………………………30 – 35 Nm ( 22- 25 ft.lb.)

Rear brake pad carrier to trailing

Arm ( bolt)……………………………………….…………………………..60- 67 Nm ( 44- 49 ft. lb.)

Wheel cylinder to backing plate………………..…………………….9 – 10 Nm ( 6.5 – 7 ft. lb.)

Bleeder valve to caliper or wheel cylinder

7-mm…………………………………………………………….…………..3.5 -5.0 Nm ( 31-44 in. lb.)

9-mm…………………………………………………………………………..4.0 -6.0 nm (35- 53 in. lb.)

Brake line unions (union nuts)…………………………………………….10 -15 Nm( 7-11 ft.lb.)

Brake hose unions ( union nuts)………………………………………..13 -16 Nm ( 10-12 ft.lb.)

Master cylinder to vacuum booster (nut)…………………………… 22 -24 Nm (16 -17 ft.lb.)

Vacuum booster to pedal base (nut)…………………………………..22 -24 Nm (16 -17 ft.lb.)

Wheel to rotor or brake drum (lug bolt)…………………………….100± 10 Nm (74 ± 7 ft.lb.)

 

 

Suspension and Steering Torque Specs

Connecting link to bracket………………………………………………………..22 Nm ( 16 ft. lb.)

Connecting link bracket to control arm……………………………………..42 Nm (30 ft. lb.)

Control arm ball joint to strut ( locknut) ……………………………………65 Nm ( 47 ft. lb.)

Control arm ball joint to subframe (locknut) …………………………  ..85 Nm ( 61 ft. lb.)

( bracket to underbody, bolts) …………………………………………….42 Nm (30 ft. lb.)

Final driver rubber mount to body …..………………………..80-87 Nm ( 58-63 ft. lb.)

Front brake caliper to

Suspension strut ( bolt) …………………………………………..110 -123 Nm (80 -90 ft.lb.)

Front strut mounting nuts ( top) ………………. ………………………………….22 Nm ( 16ft. lb.)

Front shock absorber cartridge

Threaded collar………………………………………………………..130 ± 13 Nm (94 ± 9 ft.lb.)

Front shock absorber top nut……………………………………………..65±6 Nm( 47 ±5 ft. lb.)

Front wheel bearing collar

(axle) nut……………………………….……………………………..290 ± 29 Nm ( 210±21 ft. lb.)

Power steering pressure line

to steering gear………………………………………………………………………..40 Nm (29 ft. lb.)

Rear brake caliper to

wheel bearing housing ( bolts) ……………………………………60 – 67 Nm ( 43 -48 ft. lb.)

Rear shock absorber to trailing arm…………………………………72 – 87 Nm ( 52 -63 ft. lb.)

Rear shock absorber to upper

Mounting bracket…………………………………………………………..13-15 Nm ( 9-11 ft. lb)

Rear stabilizer bar to trailing arm

( tighten in normal position ) ……………………….………………22-24 Nm (16-17 ft.lb.)

Stabilizer bar to connecting link……………………………………………………..42 Nm (30 ft. lb.)

Stabilizer bar mounting brackets to subframe………………………………22 Nm ( 16 ft. lb.)

Steering gear to front suspension subframe………………………………….42 Nm (30 ft. lb.)

Subframe anchor bolts

M 10……………………………………………………………………………………..42 Nm (30 ft. lb.)

M 12……………………………………………………………………………….…..77 Nm ( 56 ft. lb.)

Tie rod end locknut………………………………………..………36.5 ± 3.5 Nm ( 26.5 ± 2.5 ft.lb)

Universal joint shaft clamping bolts………………….…………………………22 Nm ( 16 ft. lb.)

Universal joint shaft coupling……………………………………………………..22 Nm ( 16 ft. lb.)

Upper bracket to body ( nuts) ……………………………………….22 – 24 Nm ( 16-17 ft. lb.)

Wheel lug bolts. …………………………………………………………..100 ± 10 Nm (74 ± 7 ft. lb)

 

 

Body and Interior Specifications 

 Air Conditioning Specifications

Refrigerant capacity ( R-12)……………………………………………………………….975 grams ( 2.1 lbs.)

Refrigerant oil capacity ( total)

Swash plate-type compressor………………………………………………………..……………………300 cc

Valve-type compressor…………………………………………………………………………………………200cc

Oil to add after replacement of

Drier…………………………………………………………………………………………………10 grams ( .35 oz.)

Evaporator…………………………………………………………….…………………………40 grams ( 1.4 oz.)

Condenser…………………………………………………………..……………………………20 grams ( .70 oz.)

Any pipe or hose……………………………………………….………………………………10 grams ( .35 oz.)

High pressure switch

Opens…………………………………………………………………………..……25.5-27.5 bar ( 370-399 psi)

Closes…………………………………………………………………..………………20-22.5 bar ( 290-326 psi)

Low pressure switch

Opens………………………………………………..…………………….…………1.72 – 2.22 bar ( 25 -32 psi)

Closes………………………………………………………………………….…………2.0- 2.4 bar ( 29 -35 psi)

Temperature switches

Low fan speed, closes……………………………………………….………………approx. 91oC ( 196 oF)

High fan speed, closes………………………………………………………………approx. 99oC ( 210 o F)

 

 

Electrical System

Table s. Wiring Harness Connector Locations

Connector Location
C1 Rear of instrument cluster ( blue, 26-pin )
C2 Rear of instrument cluster ( white, 26-pin)
C3 Rear of instrument cluster ( yellow, 26-pin)
C4 Rear of instrument cluster, under rear panel (16-in)
C5 Rear of instrument cluster, under rear panel (19-pin)
C101 1984-1985- on side of fuse/relay panel (19-pin)

1986-1990-on rear fire wall, near fuse relay panel ( 2-pin )

C103 1984-1988- Beneath instrument panel, on steering column (29-pin)

1989-1990- Beneath instrument panel on steering column (30- pin)

C114 Underside of fuse relay panel (8-pin)
C115 Underside of fuse relay panel (2-pin)
C128 Behind right front side marker light ( 2-pin)
C200 1984-1988- Beneath instrument panel, on steering column (9-pin)

1989-1990- Beneath instrument panel near steering column (10- pin)

C201 Beneath instrument panel, on steering column (6-pin)
C202 Beneath instrument panel, on steering column (13-pin)
C204 1984-1987- Beneath left side of instrument pane, on right side of steering column (9-pin)

1988-1990- Beneath left side of instrument panel, on right side of steering column (12-pin)

C208 Automatic transmission –beneath instrument panel, connected to C204 (2-pin)
C209 Manual transmission – Beneath instrument panel, on clutch pedal support ( 2-pin)
C210 1984-1988- Beneath instrument panel, near steering column (4-pin)

1989-1990- Beneath instrument panel near steering column (7- pin)

C240 Beneath left side of instrument panel (6-pin)
C241 Beneath instrument panel, near steering column ( 1-pin)
C260 Beneath left side of instrument panel, near chime module (2-pin)
C301 In center console, at base of shift lever (2-pin)
C302 Beneath left side of instrument panel (25-pin)
C304 At base of driver’s side B-pillar (3-pin)
C305 Beneath left side of instrument panel, near C302 (1-pin)
C306 In center console, near base of shift lever (9-pin)
C351 Beneath left side of instrument panel (1-pin)
C401 1984-above passenger’s side footwell speaker (13 pin)

1985-1990- in passenger’s side B –pillar (7-pin)

C402 1984- above driver’s side foot well speaker (13-pin)

1985-1990-in passenger’s side B-pillar (7-pin)

C404 Above passenger’s side door jamb switch (21-pin)
C405 Above driver’s side door jamb switch (21-pin)

 

Table t. Wiring Harness Ground locations.

Ground point Location
G100 In luggage compartment, behind battery ( 6-cylinder models with trunk-mounted battery).

IN engine compartment on right shock ( all models with engine compartment-battery)

G102 On top rear of engine (4-cylinder engine only)
G103 On right front shock tower (2.5i engine only )

On left side of engine block, above starter ( 2.7e engine only)

G104 On front fender, behind left headlights
G200 Beneath instrument panel, above brake pedal
G201 On steering column, near horn brush/slip ring
G300 Beneath left side of rear seat bottom
G301 In luggage compartment
G600 In windshield header

 

Table u. Wiring Harness Splice Locations.

Splice ( welded connection in wiring harness) Harness and approximate location
S100 Main harness, front left corner in engine compartment.
S102 Main harness, front left corner in engine compartment.
S103 Main harness, front right corner in engine compartment.
S107 1984-1985 3 18i –Engine harness, top of engine.

1986-1990 325- engine harness, beneath left side of instrument pane, above glove compartment

S114 Main harness, front center in engine compartment.
S201 On-board computer harness, beneath center of instrument cluster
S202 On-board computer harness, beneath center of instrument panel, beneath heating and ventilation controls.
S207 1984-1986-Main harness, behind instrument panel

1987-1990-main harness, beneath left side of driver’s seat

S209 1984-1986-Main harness, behind instrument panel

1987-1990-main harness, beneath left side of driver’s seat

S210 1984-1986-Main harness, behind instrument panel

1987-1990-main harness, beneath left side of driver’s seat

S211 1984-1986-Main harness, behind instrument panel

1987-1990-main harness, beneath left side of driver’s seat

S212 1984-186-Main harness, behind instrument panel

1987-1990-main harness, beneath left side of driver’s seat

S213 Main harness, behind instrument panel
S215 1984-1986-Main harness, on driver’s side floor, beneath instrument panel.

1987-1990-main harness, beneath left side of driver’s seat

S221 1984-1986- Instrument panel harness beneath center of instrument cluster

1987-1990-instrumetn panel harness, beneath left side of instrument panel.

S223 Cruise control harness
S224 Multi-function clock harness
S228 Cruise control harness
S229 Air conditioning harness
S230 Main harness, behind left side of instrument cluster
S231 Main harness, behind left side of instrument cluster
S232 Main harness, behind center side of instrument cluster
S233 Main harness, behind left side of driver’s seat.
S240 Air conditioning harness
S241 Main harness, rear left quarter of luggage compartment
S250 Air conditioning harness
S251 Air conditioning harness
S300 Door harness, in driver’s side footwell
S301 Door harness, beneath front edge of driver’s door
S303 Door harness, beneath left side of driver’s seat
S304 Door harness, in driver’s side footwell
S305 Door harness, beneath door switch assembly in center console.
S306 1984-1986- Instrument panel harness beneath center of instrument cluster, beneath heating and ventilation controls.

1987-1990-instrumetn panel harness, beneath left side of instrument panel.

S308 Door harness, inside door in front of mirror switch
S309 Door harness, inside door in front of mirror switch
S316 Main harness, on driver’s side floor beneath instrument panel
S322 Main harness beneath right side of driver’s seat
S324 Main harness, left rear corner of luggage compartment
S326 Main harness, left rear corner of luggage compartment
S328 Main harness, beneath right side of rear seat
S332 Door harness, beneath right side of passenger’s seat
S333 Door harness, beneath right side of passengers’ seat
S340 Main harness, on driver’s side floor, beneath instrument panel
S342 Door harness, beneath left side of driver’s seat
S346 Main harness
S402 1984-1988- Door harness, beneath driver’s seat

1989-1990-door harness, beneath passenger’s seat

S411 Door harness, inside passenger’s door, front edge
S501 Door harness, inside driver’s door.
S502 Door harness, inside driver’s door.
S503 Door harness, inside driver’s door.
S504 Door harness, inside driver’s door.
S600 Sunroof harness
S601 Sunroof harness

 

Table v. Relay Locations

Relay Location
Fuel pump Auxiliary relay panel.
Fog light relay In fuse/relay panel
High bean relay In fuse/relay panel
Horn relay In fuse/relay panel
Load reduction relay In fuse/relay panel
Low beam relay In fuse/relay panel
Low beam check relay Integrated into fuse/ relay panel and part of printed circuit board
On-board compute relay Beneath left side of instrument panel, behind ABS control unit
Rear lights check relay Luggage compartment, near power antenna
Rear window blower relay ( convertible only) Behind center of rear seat, attached to blower motor
Start relay ( automatic transmission) Upper left corner of driver’s footwell
Sunroof motor relay In windshield header
Wiper control unit relay In fuse/relay panel

 

 

Table w. Other Electrical Component Locations

Other components Location
ABS control unit Beneath driver’s side of instrument panel.
Active check control unit In windshield header
Back-up light switch On transmission side
Brake light switch Above brake pedal
Central locking system control unit In driver’s footwell, below speaker
Chime module Beneath driver’s side of instrument panel, attached to lower trim panel
Clutch switch Above clutch pedal
Coolant level switch In coolant expansion tank
Convertible top positon switch Driver’s side of top stowage compartment
Cruise control unit Beneath instrument panel, above glove compartment on top of fuel injection control unit
Cruise control servo In engine compartment, in front of left shock tower
Flasher In steering column, above lower steering column trim
Fuel tank sender Under rear seat, driver’s side of fuel tank
Fresh air blower motor Behind firewall trim panel
Fresh air blower resistors Behind firewall trim panel, attached to blower motor housing
Interior light timer control In driver’s footwell, below speaker
Neutral/park/backup light switch In center console, at base of shift lever

 

Oil level sensor In oil pan, left side of engine
On-board computer horn and diode Under driver’s side of front bumper
On-board computer module In center of instrument panel, to right of radio
Rear window blower motor ( convertible only) Behind center of rear seat back
Seat belt warning timer Beneath driver’s side of instrument panel, left side of sterring column
Starter Left side of engine, rear
Sunroof motor In windshield header
Windshield washer fluid level switch In washer fluid reservoir in engine compartment
Windshield washer pump In washer fluid reservoir in engine compartment
Wiper motor Rear of engine compartment, behind firewall panel
Horns Above left and right side of front bumper, behind splash guard.
Horn brush/slip ring assembly Beneath steering wheel on steering column

 

 

Table x. Fuse location and Designation

Fuse Rating and Color Description
1 7.5 amp ( brown) Headlight, left high beam
2 7.5 amp ( brown) Headlight, right high beam
3 15 amp ( lt. blue) Auxiliary radiator cooling fan, low speed ( also see fuses 18, 19 and 20)
4 15 amp ( lt. blue) Turn signal and emergency flasher lights ( also see fuse 24)

Active check control ( also see fuses 6,10, 21, 22, 23 )

Digital Clock (also see fuse 21)

5 30 amp ( lt. green) Windshield wipers and washer
6 7.5 amp ( brown) Stop lights

Cruise control ( also see fuse 10)

Active check control ( also see fuses 4, 10 21, 22 and 23)

7 15 amp ( lt. blue) Horns
8 30 amp ( lt. green) Rear defogger (also see fuse 23)
9 15 amp ( lt. blue) Fuel delivery ( also see fuse 10 and 21)
10 7.5 amp ( brown) Seat belt warning system ( also see fuse 21)

Service interval indicator ( also see fuse 21)

Tachometer/fuel economy gauge ( also see fuse 21)

Instrument gauges and indicators

Brake warning system

Back-up lights

On-board computer (also see fuses 12, 21, 23 and 27)

Stater

Fuel delivery ( also see fuse 9 and 21)

Idle speed ( also see fuse 9)

Active check control ( also see fuse 21)

Stop lights/cruise control ( also see fuse 6)

11 15 amp ( lt. blue) 1984- 1987

7.5 amp ( brown) 1988- 1990

Fuel delivery ( fuel pump)
12 7.5 amp ( brown) Radio, power ( also see fuses 21, 27 and 28)

Speedometer and instrument indicators ( also see fuse )

On-board computer ( also see fuses 10, 21, 23 and 27)

Multi-function clock ( also see fuses 21 and 23)

13 7.5 amp ( brown) Headlight, left low beam
14 7.5 amp ( brown) Headlight, right low beam
15 Not Used
16 15 amp ( lt. blue) Heated seats
17 30 amp ( lt. green) Sunroof

Power windows

18 30 amp ( lt. green) Auxiliary radiator cooling fan, high speed ( also see fuses 3, 19 and 20)
19 7.5 amp ( brown) Auxiliary radiator cooling fan (also see fuses 3 and 18 )

Interior lights ( also see fuses 6, 21 and 27)

power mirrors

20 30 amp ( lt. green) Heater/air conditioning ( also see fuse 28)

Auxiliary radiator cooling fan (also see fuses 3, 18 and 19)

21 7.5 amp ( brown) Glove box light and flashlight

Ignition key warning / seat belt warning ( also see fuse 10)

Interior lights( also see fuses 6, 19 and  27)

Radio memory ( also see fuse 12, 27 and 28)

Luggage compartment light

Active check control ( also see fuses 4, 6, 10, 22, 23)

Fuses 4, 6, 10, 22, 23)

Service interval indicator ( also see 10)

On –board computer ( also see fuses 10, 12, 23 and 27)

Fuel delivery –except 3 18i ( also see fuses 9 and 10)

Tachometer/fuel economy gauge ( also see fuse 10)

Digital clock ( also see fuse 4)

Multi-function clock ( also see fuses 12 and 23)

22 7.5 amp ( brown) Active check control ( also see fuses 4, 6, 10, 21 and 23)

Front parking lights ( also see fuse 23)

Rear taillights ( also see fuse 23)

Front side marker lights ( also see fuse 23)

23 7.5 amp ( brown) Instrument panel lights

Front parking lights ( also see fuse 22)

Rear taillights ( also see fuse 22)

Rear side marker and license plate lights

Active check control ( also see fuses 4,6, 10, 21 and 22)

Rear defogger ( also see fuse 8)

Multi-function clock ( also fuse 12 and 21)

On-board computer ( 1987 and later ) ( also see fuses 10, 12, 21 and 27)

 

24 15 amp ( lt. blue) Turn signal and emergency flasher lights ( also see fuse 4)
25 Not used
26 Not used
27 30 amp ( lt. green) Interior lights ( also see fuses 6, 19 and 21)

Central locking system

On-board computer ( also see fuses 10, 12, 21 and 23)

Radio- amplifier ( also see fuses 2, 21 and 28)

 

28 30 amp ( lt. green) Cigar lighter

Radio –power antenna ( also see fuses 12, 21 and 27)

29 7.5 amp ( brown) Fog light, left ( also see fuse 30)
30 7.5 amp ( brown) Fog light, right ( also see fuse 29)
NA 25 amp Power window circuit breaker

 
If all else fails and you cant find the torque spec above you can also look up the “M” size bolt standard in this BMW standard guide, and use that torque accordingly.

Download (PDF, 172KB)


 

 

 

 

 

 

 

 

 

 

 

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