I have a weird issue with my ml320, 2001. Out of the blue, if I lock the car with the remote, all doors except the drivers locks, unlocks, then locks. The driver's door remains unlocked. It can be locked manually. The alarm is functioning...any idea what could be wrong?
Thanks!

 

you can lock it with the blade at the drivers door.. there might be a black plug in the key hole on the door. remove the plug then you will see the tumbler for the key blade. also check all your fuses and relays there numerous fuses and relays for the central locks.

 

Mine does the same thing. Try to manually push down all 4 of your locks. Ill bet one is stuck. You will prolly have to replace the lock actuator.