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Do it Yourself

A place to find DIY guides to doing car repairs/mods/etc.

Magnetic phone holder for E30

0
April 29, 2021
Magnetic phone holder for E30

Interacting with your phone whether its for GPS or reading a message is so much easier when the phone is dashboard level rather than trying to interact with it in the E30 cubby under the HVAC panel:
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BMW and Bosch release Gen 3 injectors for E30 M20B25

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April 21, 2021

OEM injectors are pintle design; good for its time, but there have been many generational iterations of fuel injectors since. Recently BMW aligned with Bosch to release a direct replacement 14.5lb gen 3 injector that is 4 hole (disc type). 4 hole injectors provide for much better fuel atomization when compared to pintle design;...
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Fixing floppy E30 AC vents

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April 19, 2021

Fixing your AC vents so they are no longer floppy is easier than you think. All you need is: Flat head screw driver Nylon washers 20 min To remove an AC vent all you have to do is point it down until you feel it click, then with a thin screw driver carefully push...
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Painless Power Brakes for E30 V8 swaps (Remote Hydrovac Booster)

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February 28, 2021

If you’ve been researching doing a V8 swap into an E30, you’ll quickly learn that one of the major dilemmas is how to solve the brake booster problem. With a V8 swap, there is no room for any kind of brake booster in the stock location. In the early years, the solution was to...
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Leaking hydraulic sealing copper or aluminum washer? Can’t get it to seal? Use a dowty (bonded washer).

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January 17, 2021

Most automotive hydraulic applications use a copper or aluminum washer for sealing. The idea is that the two surfaces are near perfectly flat and all that is needed is a hint of squished copper or aluminum. A small gouge, unevenness, or slop in the mounting threads can mean the squish of a copper or...
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Power Steering Line From Reservoir to Pump compatibility between early and late E30 M20

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April 29, 2020

If you have an early E30 (pre 10/87) your power steering line from the reservoir to the pump probably looks like this: The hose is held to the banjo by a worm style hose clamp: Post 10/87 has a banjo permanently crimped to the hose: If you check the ETK, there is no mention...
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Relocating E30 Central locking to fix moisture problems once and for all

1
April 12, 2020
Relocating E30 Central locking to fix moisture problems once and for all

A few years ago I wrote about common problems with the E30 central locking and how to fix them. Two of most common E30 Central locking/Power locking issues and how to fix them Well, its time to revisit the topic, because I have figured out the once and for all solution. You see, even...
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Toyota Techstream 0xC0040001 Error, MVCI Driver ended prematurely error and Unable to connect to vim Techstream

1
October 24, 2019

So you’re trying to get Techstream going, but you keep getting errors; let me help you solve all of them in one place.   Toyota Techstream 0xC0040001 Error – This error is due to a firmware limitation, there are generally two firmware versions of the J2534 connector. Version 1.4.1 and Version 2.0.4. To access...
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Lower Airdam ‘Cowcatcher’ Bracket for E30 (is airdam) STL and STEP files

5
September 9, 2019

The cowcatcher airdam was only sold on IS and ES models in 87. The ‘is’ got a 4 slot model and the ‘es’ got a 2 slot model; behind the airdam was an oil cooler. IS airdam: ES airdam: The problem is that the brackets for this airdam are long NLA (no longer available)...
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How do sway bar works and what size of swaybar is best?

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July 19, 2019

Most results when searching topics about sway bars involve high level extrapolations about understeer, oversteer, body roll and preferences; all important but it doesn’t help to understand how sway bars actually work. Hopefully I can simplify it enough where it starts to make intuitive sense. The primary principle behind a sway bar is to...
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