Central locking and electronics fault
Hi! Sadly my first post in this forum is going to be about Electronic gremlins.
One morning, when i was unlocking my car with the key fob, the driver door on my 08 159 sw would not unlock with the rest of the doors. When i opened it with the interior handle, it would not lock again.
No errors showed up when diagnosing the car. I took the door apart searching for obvious faults on the wiring and lock unit without finding any. I got a new wiring harness for the door and installed it, but no difference was made. Afraid i might smash something in uncontrollable rage over having spent close to 10 hours on this s*** without making any progress, i disconnected all the wiring in the door and left the car over night.
The next day i decided i had to put the door back together so i could drive the car, and when everything was connected and put back together, voila, everything was working perfectly!! Until the day after when i was going to work. None of the front doors would now unlock when using the key fob, the window control buttons in the driver door is not working, and neither is the one in the front passenger door. My odometer is blinking, and the temperature display shows "--,-" degrees. The rear doors still lock/unlock, and the windows are working when using the controls in the respective door.
Can anyone please help me work this out, as i have run out of ideas, and i am completely losing my mind over this.