Hi, my 2000 318 tourer has suddenly developed a problem with the central locking system. Its been working fine until this evening, but now I cannot open any doors with it. It can't be the remote key, because the boot can still be opened, and the interior light comes on when I try to unlock the car using the remote. But also, if I use the central locking button in the car, it still doesn't open the doors. Also, manually trying to open the door from the inside, using the individual door handles doesn't work, except for the driver's door. So at the moment, I can only open the boot (using the remote) or driver's door (using the key in the lock, or using the door handle from inside).
Using the remote key, or the central locking button in the car, I can lock the doors. Its just the unlock which doesn't work. So I'm wondering whether some sort of dead-lock / child-lock has been activated accidentally. I've tried changing the fuses linked to the central locking system, but still no joy.
Any help or suggestions would be much appreciated!