Jaret83mk1 Posted April 25, 2018 Report Share Posted April 25, 2018 Hey guys new to this forum and read a lot of helpful threads in the past. Hoping you can help solve my window issue.. I've got a 2003 320ci, the drivers window has never worked in the 2 years of owning it. After fixing the sunroof, changing over a broken bumper and other odd jobs (I bought a pile of sh** but it's a low mileage good runner) thought it's time I fixed the window. So door card off, check the motor and regulator which seem fine, tried the window switch and you can clearly hear a click from the motor when you pull the switch. So I know there's power. I've swapped out both motor and regulator but I have the same problem. The window just won't move? I've disconnected the motor from the regulator to test the motor independently and the motor will turn only in the upward direction. This it the same with both motors. I've scoured the internet and all forums but still no joy! I even tried shorting the battery terminal cables?? As read on another forum which apparently resets some capacitor? I was sceptical and it hasn't worked. The only thing I haven't tried is the window switch itself but as the motor turns and is recieving signal I can't see that being at fault. Is there a sensor? A proximity switch or anything I've missed? Thanks guys x Quote Link to comment Share on other sites More sharing options...
Jaret83mk1 Posted April 25, 2018 Author Report Share Posted April 25, 2018 I've just read somewhere about a GM5 body control module. Anyone familiar with this? Apparently they have relays for the windows. Could explain why the motor only turns in one direction? Quote Link to comment Share on other sites More sharing options...