The drivers side window and wipers have been wonky since I've owned the car. They recently both completely stopped working.
I sent 12v straight to the window motor and it worked great, so I followed power and found out that the door harness connector was filled with crud. Cleaned and greased and window motor back in action!
Wipers have been intermittent and have had various failures. I did a ton of diagnosing and really came up with very little. I found a melted ground at the g100 prong under the dash. Fixed and didn't solve anything. I jumped pins to bypass wiper relay and the motor didn't work, and then it randomly started working after a few more jumps, so I can only assume that the motor is failing.
I thought it would be handy for other folks to make a short and sweet, straight to the point youtube vid about wiper system diag on an e30 since a typical youtube vid is 80% filler and largely useless. If you want to figure out why your wipers aren't working, see below.
https://youtu.be/hk8Cq9Z7Q6c
Untitled by Bobbie Morrone, on Flickr
Untitled by Bobbie Morrone, on Flickr
Untitled by Bobbie Morrone, on Flickr
Untitled by Bobbie Morrone, on Flickr






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