W210 Door Lock Problem

On those models the door lock actuators may fail causing the door lock to bounce up and down several times.

W210 door lock problem.

When they fail it can lead to problems locking one or more door. First you can replace the door lock actuator which can cost from 150 to 450 depending on if you try to fix it yourself or have the dealer fix the problem. If so replace the fuse. This video shows how to fix the problem when your mercedes key turns in your door lock but does not lock or unlock your car.

Unfortunately as the cars age the components of the vacuum system can deteriorate eventually leading to leaks that will typically prevent one door from locking while the others lock with no problem. If just one lock won t open on your mercedes then the problem may rest with broken wiring a bad solenoid or perhaps with a blown fuse. Diagnosing the problem begins with isolating the exact source of the issue or the exact part of the vacuum door locking system that needs repair or attention. Check your fuse box first to determine if a blown fuse is keeping the lock from working.

There is a couple of ways to fix this problem. Every door lock in your vehicle operates with an actuator. You will need a couple of plastic trim tools to remove the panel without marring it. W210 door panel removal is fairly easy if you know what you are doing and have the right tools.

A likely problem is the lock cy.