Question Details

Looking for the fuse that controls the seat massage. Possibly the  pump fuse which controls the massaging seat. I read that's resetting the pump could resolve the problem. Would like to try resetting by pulling fuse and reinserting. The seat massagers do not work L or R.  In addition to this all the fuse charts online show different numbering than what is on my little booklet which is stored in the rear trunk fuse module. My rear module fuses are 400 to 497. Online the numbers only go up to the 200 range for all of the fuse module locations. My booklet also does not show fuses for the multi contour or dynamic seats, or the pump which controls the seats. My car has this feature. The online numbering however does show these fuses. I'm confused. What am I missing here?


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MercedesMedic  11 months ago

I see your point. Unfortuantley I don't have a fuse chart in front of me. But have you tried disconnecting the batteries? That will take care of the reset that you are trying.

My guess is that reseting will not fix the problem. You are on the right path trying to check the fuse.

Besides the seat message and lumbar support not working does the seat move at all?

Also do the doors self close when not closed all the way?

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Dstarman21  10 months 4 weeks ago

There is a technical service bulletin on this problem. The module has been updated to correct it.

i have solved the problem.

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EuroTech  10 months 4 weeks ago

Can you share the TSB number?


Thank you