Door Lock Issue

Car: 260E Year: 1988 Mileage: 125,000 Hey guys, I have an issue with the door locks not locking and unlocking when I use the key on either the drivers or passengers door. When I do try to lock and unlock I do hear the pump turning on but not locking or unlocking. I can do both manually by pulling or pressing the locks on each door. I understand to check the yellow vacuum line at the pump and make sure that there is no leaks and such. Any other things to look for? I tried to research this... Door Lock Issue

Car: 260E
Year: 1988
Mileage: 125,000

Hey guys, I have an issue with the door locks not locking and unlocking when I use the key on either the drivers or passengers door. When I do try to lock and unlock I do hear the pump turning on but not locking or unlocking. I can do both manually by pulling or pressing the locks on each door.

I understand to check the yellow vacuum line at the pump and make sure that there is no leaks and such. Any other things to look for? I tried to research this...

Door Lock Issue

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