It may seem like a battery is a battery is a battery but  there are some critical differences between batteries. There are essentially two types of batteries you can choose from; AGM and Lead batteries. Many new BMW’s like E90 come with AGM batteries, these batteries use a technology called Absorbed glass mat. Without...
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Many people are not aware that there are different types of brake lines, different types of flares (with different unions), different materials that they can be made of, or how to cut, and flare them properly. The most common brake line size for most BMW’s and particularly true for E30’s is 4.75mm with a...
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This guide assumes you are not using the below tool; as the the tool allows for the removal and installation of the rear subframe bushing without needing to drop the rear subframe (but works just as well if you do). E30 Rear Subframe Bushing Tool for Removal and Install Supplementary guide for trailing arm...
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My way is not only faster then most traditional ways, but its also makes the trailing arm bushing come out without much resistance. Things you will need: 30mm socket Bigger C-clamp or PREFERABLY a vise Box cutter KY lube (not required, but if you have it I recommend using it)   First Cut off...
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There are two basic challenges to changing the transmission fluid on the E30 for the DIY’er. The first is to find a 17mm hex (a shallow 17mm at that) to undo the transmission fill and drain plugs. The second challenge is how to actually get new fluid back in because the drain plug is...
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By design E30 shifters are doomed to go sloppy over time because the materials that keep it tight are made out of things like rubber and hard plastic. Here is the no-bullshit way of getting that shifter tight again.   You will need parts 6 and 13 from the dealer. Part 2 from a...
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There is a very high probability that through the life of an E30 the odometer gears will go out. If your odometer gears are original and are still functioning as they should then consider yourself lucky. If you plan to own your E30 for the distant future then it will be worth bookmarking this page!...
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Most every maker of m60/m62 engine mounts currently is basing off the idea of using subframe spacers. I  have covered where this idea of using subframe spacers came from here: https://www.rtsauto.com/mounting-an-m60-m62-without-subframe-spacers-and-without-drivetrain-angle/   Essentially the person who wrote one of the first DIY for the swap used subframe spacers, and because others were religiously following...
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This cool idea is courtesy of bimmerforums member “So Live”: Well, I love my ipod and always will. Im sure many of you are the same way. I have no real reason to buy a whole new head unit other than for my ipod. Ive done some research and found that some people with...
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After having removed the incorrectly installed aftermarket radio (wiring was completely incorrect) out of my E30, I put back in the stock radio that came with my car when I bought it and wired it back to stock. After turning the radio on I noticed a terrible crackling and popping sound when I would...
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