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How to fix door locks on mercedes w116.
Take your mercedes benz for a test drive.
Your door lock should not bounce up and down anymore.
My key works on the driver s door boot lid and ignition.
What you need to do is to apply a small amount of tape to the door lock pin.
All other functions work on the door such as automatic door lock open by turning key in the drivers door.
Ensure the door pin can go up and down.
Classic mercedes w123 w126 w116 door handle removal without a key.
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.
Vito s garage 1 000 views.
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.
The way that this fix works is by creating resistance at the door lock pin.
Kent will show what part fails and how the new part is made in his free video tip.
Take 1 inch of electrical tape and apply it around the door lock pin.
Also the handle and the lock pin works on the inside of the passenger s door.
Repeat this procedure with the system in the locked position.
Remove the door pin or at least pull it up in the unlock position.