E46Fanatics - View Single Post - Any info on doing your own GM5 repair? (diy)
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Old 02-26-2011, 04:46 PM   #1
99 black gt
Registered User
Join Date: Nov 2010
Location: Indiana (chicago region)
Posts: 208
My Ride: 2000 OB 328i
Any info on doing your own GM5 repair? (diy)

I'm having issues with my central lock. Sometimes it just wont unlock the doors, sometimes the interior handles wont unlock either so the doors are completely stuck. Seems to be more common in rain or cold weather. From my general understanding, this is an issue with the GM5 central locking / window / wiper controller.

My question (and i have searched) is whether anyone has any information on what goes wrong with these. Bad relay, transistor, cold solder joint, or whatever... I'm pretty savy with a soldering iron and wouldn't be opposed to giving it a shot if i had a little bit of information, but i'm not going to go in and just start pulling things off in hopes of replacing the right one accidently..

Thanks in advance for any help fellow drivers. Hoping i can get this fixed without paying too much or having my unit out for 3 weeks while its shipped around.. I hate having my son climbing all over my seats just to get in and out
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