I have lived with 3 faulty door locks for over a year (drivers and both rear doors intermittently not locking or unlocking) .
I have just had the lock motor replaced on the drivers door only, and now all the doors are working perfectly. Does anyone know if replacing the drivers door lock can effect the rear doors?

Roly

I too seem to be having trouble with mine.in my case,I sometimes make up to 3 attempts before the driver's door opens.Also,occasionally the rear tailgate needs a couple of attempts to open.