Got to car after work, no probs, drove home & parked in drive.
Pressed remote to lock car.........locks go down, 1 sec later pop back up.
After checking each lock & internal button, it seems that I can use the passenger door key manually which then centrally locks all doors, but the drivers door key results in popping back up - the px lock is not going down.
The dash button has the same effect.
So - I think the electric part of the lock on the px side has failed, so the lock only moves when mechanically turned by the key (or by the handle from the inside). When the lock is still up, the rest of the locks pop up again (the complete reverse happens when you start from a locked situation).
1. Have I diagnosed it correctly?
2. what parts will I need?
3. Should I get the garage (£30 ph) to fit the part properly & leave me to replace the door trim & bits (I have 2 left hands