Topic: Electronics

Voltage Regulator M70 (V12)

Article by: Sean Article applies to: all e31, e32, and e38 models with the M70 V12 engine. Problem : Various. I always had a slow cranking starter since the day I bought the car a few years back. The battery was dead at that time, so I replaced it with […]

Tail/Parking Light Error Messages

Article by: Sean Applies to: all e32 and e34 models. Problem : Front parking and/or rear tail light out on 1 side of the car only, causing OBC warnings. Sometimes intermittent and erratic, so you get the impression these are false warnings. This only happens when lights are on. Changing […]

OBC Bulbs

Article by:Johan Applies to: all e32 and e34 models. Problem : The OBC remains dead and I can’t see the excellent fuel economy it doesn’t get anyway. Let’s get to work : First you will have to remove your radio. As all radio’s are mounted differently and I never had […]

OBC Temp at -30

Article by: Johan Article applies to: all e32, e34 models. Problem: Since I had the car I’ve had some problems with the OBC temperature reading. The reading would drop about 10 degrees when the front fog lights where turned on. About one year later the OBC temperature reading stayed at […]

Fusebox Rebuild

Article by: Johan Article applies to: all e32, e34 models. Problem : At some point the fuse box caught fire. Probably due to corroded contacts. That’s exactly why I always replace the fuses and clean the contacts of the fuse holders in an older car. I didn’t like the way […]

EML Control Light Repair

Article by: Johan Article applies to: all e31, e32, and e38 models with the M7x engine. Problem: The EML bulb should show up for a couple of seconds when the ignition is turned on. On my 750i it didn’t do that anymore. And as a result the acceleration time from […]