Guys I am having this exact same issue. Confirmed the door harness pins were fine. No mirror, window, lock, or light control from the drivers door. The window switch works on the passenger door. Do i need the drivers or passenger module?

Thanks

Driver's door module - probably.

Thanks. Will see what I can find on eBay

The fault is usually water ingress and then corrosion. They can be repaired pretty easily.

AWR-Fix: Door master module - https://xoutpost.com/bmw-sav-forums/...le-switch.html

Interesting, thanks for passing that along. Good to know about the drain idea too.

Will add a drain to mine next time I open it up but I avoid it getting wet anyway.. :thumbup:

Stepping back into this thread in search of help. I swapped the drivers side switch bank out and the symptoms are the same. I did buy a used one so I suppose it could also be at fault. Assuming its not what else should I be looking at? To recap no lock control, window control, mirror fold or adjustment, no light on triggered through the passenger door. The window, however, does work from the passenger side switch. Pins in the door jam wiring harness look fine. Thanks in advance.

I disassembled the switches and verified no water damage to the inside so I’m guessing the driver side is working as it should.

Given you have failures in so many systems, (windows, locks, mirrors etc.) it's likely the issue is in that module or something related to that module. Since you have (possibly) eliminated the module itself, then perhaps check the fuse - F20 (30A - in the glove compartment). After that, maybe check the ground connection... :dunno:

Door Module (A23) - https://www.newtis.info/tisv2/a/en/e...0i-sav/bK8Vbdp

Grounds - https://www.newtis.info/tisv2/a/en/e...0i-sav/wIhUwP9

Thanks for the tip. I hadn't checked the fuses so its always good to start with the basics. They were good so I pulled out the passenger side switch. Not sure what exactly was going on in there but under one of the connectors was an oily film. I opened the switch up and inside there was oil here and there. I cleaned the connector, plugged it back in and all is working as normal.
Its interesting that the passenger and driver have the same connectors. I was expecting a lot less wiring with one switch vs all that is going on over on the drivers side. I took the opportunity to drill some little drain holes in the bottom just in case water ever does find its way in.