Problem occurred this morning as reported by my GF who drives the car..temperature was below 0C overnight (2004 156 without alarm):
Try to unlock with keyfob.
Doors unlock, but lock themselves again right after
Drivers door seems to be frozen (not sure if it unlocked or not)
If you manage to open the passenger door while unlocked, it 'goes crazy' trying to lock the car again (with one door open).
If you manage to get inside, the car won't start because it think it's locked.
My girlfriend somehow managed to trick the car to stay unlocked long enough to start the car. It now drives, but is still in a 'locked state' and the driver's door does not open from the inside.
Any immediate tips? Highly appreciated...
It appears that some sensor in either front door has either failed, stuck or frozen. How to mend? The sunlight might defrost the car during the day...maybe...but something is wrong.
Both front locks/door handle knobs have been problematic at temperatures below zero.