3-Series (E21, E30)Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.
I have replaced the fuse and the bulbs in the tail light bulb holder but the back-up light still won't work. What should I try to replace next, the back-up light switch or the neutral safety switch? Any other suggestions?
Well the E21, E30, and early E36 don't have a nutural safty switch. Even if they did that part has no common wires with the back up switch or reverse lights. I would try changing the reverse light switch. Its on the left side tras about 3/4 the way up the side.
Check and see if the wires aren't pinched at the shifter under the boot, the manual trans back up lamp wires go through the weather boot and can get pinched there. If all it good, then you can go after the switch, it's a pain to get to but you'll find it on the upper passenger side of the trans. It only has two blade type connectors, long needle nose pliers are very usefull here.
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