W126 Door Lock Problems

This means there is a pressure leak in one of the actuators.

W126 door lock problems.

This makes it more challenging to troubleshoot. When the doors lock the pump runs for a few seconds as it should. My new latch. Any ideas where to start troubleshooting this problem.

Once that is determined you will need to find the source of possible leaks in the hoses and vacuum lock actuators. If you let the pump run on like that every single time it locks the little motor in the vacuum pump will definitely burn out. 1 273 w126 80 090 checking function of central locking system page 1751 jpg. Wait about 5 minutes to see if the lock side of the system holds.

The drivers side door only locks and unlocks the driver door. W126 vacuum door locks on the 1981 to 1991 380se 380sel 300sd 500sel 300sdl 420sel 300se 300sel 560sel 350sd and 350sdl are prone to problems. The first thing is to make sure the pump is working and producing vaccum. Pull a vacuum of 10 to 15hg.

All the doors on the car should lock. But when the the doors unlock the pump runs for a long time maybe 20 seconds. W126 80 090 checking function of central locking system page 1750 jpg 65 7 kb views. If your pump is running and your door locks are not working check out kent s full video manual available on w126 door lock troubleshooting and repair where.

Read honest and unbiased product reviews from our users. I am having another door lock issue. Make note of the results. The w126 was the first mercedes to use a separate electric pump to provide vacuum to the door lock system.

Make sure the driver s side door is closed and turn the key to the lock position.