It only takes 2 screws to remove the bottom panel of a CM5905 or CM5907 Radio. There you will find the code jumpers; these jumpers, based on how they are soldered determine the radio code. Note where the jumpers are numbers 1-6 and 1-8 for each model of radio. Solder the CM5905 jumpers like...
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Few individuals have a v-belt tension gauge, but it’s important to understand that proper tightness can be achieved using torque specifications. The recommended torque is 7-8Nm. However, many tend to overtighten. Before adjusting the star bolt, ensure that the component you’re adjusting (be it the PS pump, Alternator, or AC) is loose and can...
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If you’ve been around the E30 scene, you’ll know that H&R/Bilstein has been the default recommendation for a long time. But you’ll also notice that many people note that they are running Koni yellows. The Koni yellow sports are rebound adjustable, and this adjustability is what most people focus on. There is so much...
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Most(98%+) of cassette aux adapters are made with internal gears that engage the auto reverse function with a rubber wheel. When using one of these adapters, you may notice that your radio keeps flip flopping from side 1 to side 2.   In some vehicles simply removing this mechanism will solve for the issue...
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There are only two types of E30 owners; those who have cracked pedal boxes and those who will at some point have a cracked pedal box. If not bad enough, most don’t even realize their pedal box is already cracked and only discover it when knock on effects occur. The problem is that the...
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The E30 never came with a storage tray for the spare tire. The trend started with the E36 forward. The good news is, if you are running 15″ Euroweaves; PN 71111092276 (E36/E46) fits perfectly.
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Some vbelt brands (like Bando) like to indicate inner and outer lengths on their belts but not both. The important thing to know is that Li = inner length and La = outer length. BMW always indicates their belts in La in the ETK (without explicitly writing La or Li) For example, the 3315...
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Quick reference for rubber floormats that fit the E30: OEM fitting rubber E30 floormats from an E82 The problem with any floormat in the E30 is that they tend to slide around; not a lot, and perhaps you don’t need to readjust daily, but it does get annoying. I didn’t want to make holes...
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Below is a breakdown of early and late shifter assemblies found on the E30. Early (84-85):     Late:
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