W126 Door Lock Problems

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W126 door lock problems.

W126 80 090 checking function of central locking system page 1750 jpg 65 7 kb views. When the doors lock the pump runs for a few seconds as it should. Read honest and unbiased product reviews from our users. This means there is a pressure leak in one of the actuators.

The first thing is to make sure the pump is working and producing vaccum. The w126 was the first mercedes to use a separate electric pump to provide vacuum to the door lock system. The system also suffers from motor and pump problems due primarily to their location in the trunk. All the doors on the car should lock.

As far as the w126 cars go the only major difference besides geni and gen ii are the different engines and as far as i ve found all the body parts are the same. 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. 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. Any ideas where to start troubleshooting this problem.

This makes it more challenging to troubleshoot. 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. Make sure the driver s side door is closed and turn the key to the lock position. I am having another door lock issue.

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. Once that is determined you will need to find the source of possible leaks in the hoses and vacuum lock actuators. For starters the systems are getting old and with age comes common leaks and failed actuators.

My new latch.