Central lock system

Tiny
CHARLES PIUSON
  • MEMBER
  • 1999 MERCEDES BENZ ML320
  • 12,435 MILES
When I insert the key in the driver's door key lock provision on the door, it locks only one door and that is the driver's door and the other doors are not locked, but when I use the central button in the car it locks up all the doors including the driver's door. Please what might be the problem with the system and if possible can you explain with some pictures please.
Tuesday, May 10th, 2016 AT 11:33 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 52,706 POSTS
Hey CHARLES,

It sounds like you have one of two problems, that could be wrong, first the lock assembly on the drivers door has one bad because the electrical contacts or not working, or the lock module has gone bad.

Try to test the lock first, also check all fuses.

Please let me know what you find

Best, Ken
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Tuesday, May 17th, 2016 AT 9:29 AM

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