S63 AMG, S63 AMG 4Matic, S65 AMG (W222, V222) 2014 -2021

REPLACING MASSAGE/DYNAMIC SEAT PUMP ON S CLASS W222

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Old Jun 15, 2023 | 08:59 PM
  #1  
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s500
REPLACING MASSAGE/DYNAMIC SEAT PUMP ON S CLASS W222

HI ALL,

I RECENTLY PURCHASED A 2015 S65 W222 WITH NON WORKING MASSAGE/DYNAMIC SEATS. I FOUND ONLY ONE CODE FOR GROSS AIR LEAK...AND I CAN COMMAND THE AIR PUMP IN THE TRUNK TO COME ON...BUT NO PRESSURE WAS BUILDING IN THE RESERVOIR AND THE PUMP WOULD TIME OUT AND SHUT OFF. I ALSO REPAIRED A HOLE I FOUND IN THE AIR HOSE UNDER THE DRIVERS SEAT. STILL GOT THE ERROR CODE FOR LEAK.. SO I SMOKE TESTED THE PUMP AND IT WAS LEAKING. SO I ORDERED A NEW PUMP AND SHOULD BE GETTING IT SHORTLY.. MY QUESTION IS WHETHER OR NOT THIS NEW PUMP...CALLED CONTROL UNIT...NEEDS TO BE CODED TO THE CAR?? I HAVE REACHED OUT TO SEVERAL MERCEDES DEALERSHIPS AND HAVE BEEN TOLD CONTRACDICTORY THINGS!! HAS ANYONE ON THIS FORUM REPLACED A W222 MASSAGE SEAT PUMP AND HAD IT WORK WITHOUT GETTING IT CODED BY THE DEAL? OTHERS HAVE A;SO SUGGESTED THAT ONLY THE MERCEDES STAR SYSTEM CAN CODE THIS AIR PUMP AND NOT MY EXPENSIVE LAUNCH BI DIRECTIONAL SCANNER.
ANY SUGGESTIONS WOULD BE APPRECIATED.
THANKS,
RICK
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Old Apr 14, 2024 | 05:16 PM
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06SL500AMG's Avatar
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2006 SL500
Did you ever get your massage function sorted out?
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Old Apr 16, 2024 | 08:35 PM
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s500
Yes...after replacing the leaking air pump in the trunk with a new unit from Mercedes....the new pump had to be coded by the dealer. All is working well now...hope this helps,
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Old Jun 28, 2024 | 07:57 AM
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Mercedes S Coupe, Porsche Macan
Hi,

Would you still have the part number for the pump. I'm having the same issue.
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Old Jun 28, 2024 | 08:41 PM
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s500
Hi,

The part number is 222-900-41-15. After I installed it....it needed to be programmed to the car by dealer software.

Good luck!!
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Old May 14, 2025 | 02:25 AM
  #6  
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2016 AMG s63 Coupe
Preciate it bro i was having the same issue
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Old Oct 14, 2025 | 01:19 PM
  #7  
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Mercedes S Coupe, Porsche Macan
Hi. Did you ever get the part? I ordered two in error and have the extra one if you are still looking for the part,
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Old Dec 5, 2025 | 12:47 PM
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E350
Originally Posted by Bernardy
Hi. Did you ever get the part? I ordered two in error and have the extra one if you are still looking for the part,

I can buy the other one if you have it still?
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