Mercedes A Class Door Lock Fault

If you find a blown fuse replace it.

Mercedes a class door lock fault. Mercedes benz vehicles such as e c s ml gl r class are designed to automatically lock the doors as soon as you start to drive. With its varied options for technological conveniences a major inconvenience some c class owners have found is door lock faults on their new c class mercedes vehicles. Because your mb receives the lock unlock signal via the antennas installed on your car a bad antenna module fuse can also cause mercedes key fob to stop working. There is a couple of ways to fix this problem.

Apply wd 40 or equivalent product directly into the lock. I have seen plenty of people complaining of the same fault. You likely have a shorted door lock actuator which you can replace with a new unit for the lock that is not working. Perhaps your mercedes locks work but they open and close slowly.

Depending on the mb class this fuse can be found in one of the fuse boxes located in the engine bay side of dashboard under rear seat or trunk. If a door unlocks but will not lock again then replace the door switch. Mercedes benz keyless go entry door exterior handle push lock button square cover rubber plastic repair kit install instructions. The problemit is common for the keyless go door handle rubber button to wear spoiling the look of the door handle it is very common for the small black rubber keyless go button on these vehicles door handles to fail.

On those models the door lock actuators may fail causing the door lock to bounce up and down several times. It is cause by the failure of a small sp. C class drivers have described the problem as electronic door locks that function properly when activated remotely however when the doors are actuated from inside the vehicle they fail to lock properly.