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I have a 2007 S550 with the dynamic and massaging seats. After about 20 min of massage operation on the passenger seat the system shuts off and always goes back to 0 when i try to select a new function. I heard a hissing sound coming from the back of the seat. I took the back cover off and found the Y splitter to be hissing and leaking air. I took the back panel off of the drivers seat as well to compare and no leak.
I couldn't find a part number for the splitter. Does anyone have experience with this? Do you know the part number by chance? This would be greatly appreciated.
Passenger seat in w221 hissing
