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Marty
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53979
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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Mercedes-Benz S500: hello again ,i have a 2002 s500 and im

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hello again ,i have a 2002 s500 and im going to try to track down the reason my drivers door lock do not work ,i have a vacuum pump i am going to start at the main pump on the car but i want to know on the pump it has letters like sk,kaf heck td for fol bft ft and mkl,which one goes to the left front door actuatoror is it a better way to check that system for leaks

eurotec :

Hi, FT is the left front door line. You can confirm this by opening and lightly closing the door and let the pump run to try and pull the door closed. If the pump won't run you can reset the pump by unplugging the electrical connectors and plugging them back in or you can remove the fuse for the pump for a few seconds and then reinstall it. It is fuse 62 in the rear fuse box below the passenger side rear seat cushion.

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