You likely have a shorted door lock actuator which you can replace with a new unit for the lock that is not working.
1997 mercedes power lock and fuel door not working.
I can hear the pump go on and off as i press the key but does not do anything.
If the door lock actuators fail they will disable the power door lock feature from working.
Power door locks are wonderfully convenient as long as they work properly.
This page is dedicated to mercedes s class door lock pump repairin my life i owned and worked on many w140 s class cars all of them had problems with door lock pump aka pse pump.
This did not solve the problem.
I tried the various methods shown on youtube but none of them worked.
In other words it s rare that all of the doors in your car will be unable to lock but it s typical for one door at a time to begin experiencing problems.
The central locking system does not work from the smartkey nor from the interior buttons.
Perhaps your mercedes locks work but they open and close slowly.
I have a 2000 slk 230.
My lr door would not unlock from inside the car or outside.
Additionally if you.
Mercedes benz s320 closing assist door lock issues due to pneumatic system problems 86 reports.
Mercedes benz s320 door closing assist and locks not working.
When pump fails doors do not lock or unlock with key or key fob fuel filler cap doesn t lock or unlock trunk lid does not soft close trunk handle doesn t come out or gets stuck extended lumbar support in both.
Usually when vacuum door locks begin to fail they fail systematically.
I replace the 20 amp fuse in the f62 space from under the rear passenger back seat behind the light.
When they do not work right trying to pinpoint the problem can be frustrating if you are not educated on how the power lock system works.
The truck will not open with they key either.
Open and close lock to.
If your locks aren t working on your mercedes it can be extremely.
Occasionally they don t actuate and the system times out.
I had to.
This is tricky as the car won t start until the system sets.
Power door locks do not function.
The door locks actuate as soon as i press the key fob but both the fuel filler lock and the glove box lock only actuate after a delay of several seconds.
Symptoms of vacuum door lock failure.
Learn about this problem why it occurs and how to fix it.
The same problem occurs when locking the car.
Another symptom of a potential problem with the door lock actuators are power door locks that do not function.
If a door unlocks but will not lock again then replace the door switch.
If you do understand the system however troubleshooting can be performed quickly.