electrical connection

Heys guys, I bought this car 3 months ago and just got done rebuilding the top end on my 2005 325i. I got a new battery and went to go fire it up, crossed the polarities. They were swapped for about 15 seconds until it clicked that I might have had them around the wrong way. Very scared to think...

Hi, I'm repairing my 2002 convertible 330CI after my son ran over a parking bumper and took out the right side (passenger side) fog lamp, inner fender and air duct. I cannot figure out what one wire is that has had its connector chopped off; probably during the accident. I was putting in new fog...

Hello. I recently had to remove the whole intake manifold including the wire harness (octopus) in order to replace the gas lines. While putting everything back in I realised I can't find the socket for a connector. It has blue/red red/white wires coming out of it and is situated near the oil...

2004 330xi, started fine, drove to grocery store parked, came back out to go home - all the dash lights come on, no starter though. :cry: Key fob battery. We've found out doesn't need to be in the fob at all for the key to work. It's as if there is a small bar magnet in the fob that just needs...

Easiest way to hardwire my radar? I have the direct wire for my 9500ix but when I removed the sunroof panel cover, I noticed the universal garage door opener connector was cut off by the last owner of the car. I still wired it to the green wire with blue stripe hoping it still had 12v of power...

I recently bought a used M3 hard top and installed it on my 2002 330 ci convertible. I bought a new bracket/wire kit from the dealer and installed it. Looks like it can only go on one way, but seems I made some error. ( I was told the only difference between the M3 and the 330 was the color...