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Old 05-25-2016, 12:43 AM   #1
1st Gear Newbie
Join Date: May 2009
Location: Kitchener-Waterloo
Posts: 29
E30 in need of electrical help in the Hamilton area.

Hi, I've been away from the e30 community for a while now because I couldn't keep my e30 running and ran out of time/money to fix it.

The engine, body, interior and suspension were all in good working order a few years ago when I last ran it. The only real issue revolves around electrical gremlins.

A previous owner installed power locks, an alarm, and hacked it all together so that the key doesn't open the doors manually, and the ignition is from a Volvo. The alarm always went off so I snipped the wires to the siren, but it always seemed too drain the battery, and kill alternators.

The bottom line. I want to attempt to get the wiring back to the factory settings, replace the lock set/ignition to a stock set, and get this car running properly.

I now have a big workshop with the space to work on it, but I really need some guidance to get through it.

If anyone is in the Hamilton area, or would be willing to come down for a day, I would happily compensate them for their time.

Shoot me an email at

The car is a 1991 e30, 325i, coupe.
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Old 05-25-2016, 12:24 PM   #2
Reverse Gear Member
Join Date: Aug 2011
Location: Oakville
Posts: 1,248
Your best bet is probably to source a used OEM harness and start anew. Rewiring can cause a host of problems, especially if an alarm is involved.
TSI is online now   Reply With Quote
Old 05-25-2016, 04:42 PM   #3
1st Gear Newbie
Join Date: May 2009
Location: Kitchener-Waterloo
Posts: 29
Thanks for the input.

I hadn't thought of that, but I like the sounds of a fresh start. I imagine this would involve completely removing the dash, then re-feeding all the components. Where would be the best place to locate the appropriate wiring diagram for this replacement? I'm a contractor and am capable with electrical work, I was just scared of digging into the rats nest and never getting it back to normal.

Has anyone done this, what would be the difficulty rating on this job?
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