How To Fix Door Locks On Mercedes W116

All other functions work on the door such as automatic door lock open by turning key in the drivers door.

How to fix door locks on mercedes w116.

Take your mercedes benz for a test drive. The way that this fix works is by creating resistance at the door lock pin. What you need to do is to apply a small amount of tape to the door lock pin. It is often possible to hear the leak without removing any panelling.

Run the engine at idle and place your ears near the lower edge of each door interior in turn plus the lock area of the drivers door plus trunk lock and fuel flap. Set the system in the unlocked position. Take 1 inch of electrical tape and apply it around the door lock pin. Ensure the door pin can go up and down.

Mercedessource tech help 1 failure point are the rubber diaphragms in the door lock actuators these vacuum door locks are prone to failure because of age and nothing gets more deterioation that the rubber diaphragms on the acutators themselves. Kent will show what part fails and how the new part is made in his free video tip. Repeat this procedure with the system in the locked position. We have repair parts available along with instructions.

Also the handle and the lock pin works on the inside of the passenger s door. My key works on the driver s door boot lid and ignition. I ve been told that maybe a lock smith might get the lock barrel and key matched again if point c is. Classic mercedes w123 w126 w116 door handle removal without a key.