Passenger side seat airbag warning light…
Thread Starter
Junior Member
Joined: Apr 2002
Posts: 19
Likes: 1
From: Toronto, Canada
Passenger side seat airbag warning light…
Once again 2014 E63 with a passenger side airbag deactivation light on while driving. I’ve done a bit of research but it seems like it could be the seat mat which commonly goes. Does this sound correct and does anybody have a part number and is this easy to source OE or aftermarket? TIA
Out Of Control!!
Joined: Apr 2019
Posts: 11,924
Likes: 6,776
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Once again 2014 E63 with a passenger side airbag deactivation light on while driving. I’ve done a bit of research but it seems like it could be the seat mat which commonly goes. Does this sound correct and does anybody have a part number and is this easy to source OE or aftermarket? TIA
Use a scanner to work with chassis active faults.
parts shipped upon your order
MBWorld Fanatic!
Joined: Feb 2017
Posts: 2,297
Likes: 1,205
From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
Once again 2014 E63 with a passenger side airbag deactivation light on while driving. I’ve done a bit of research but it seems like it could be the seat mat which commonly goes. Does this sound correct and does anybody have a part number and is this easy to source OE or aftermarket? TIA
MBWorld Fanatic!
Joined: Jun 2021
Posts: 3,110
Likes: 1,346
From: Fleriduh
W212 E63S Wagon - GSL580 - E63 - E350 - C300
In my cars...if there is no one in that seat it is off...maybe your cars "weight sensor" as others have said is failing. The theory is that if no one is in a given seat its airbags do not deploy....
Back when I was a kid...our cars had no airbags and no seat belts...and we liked it that way!
Back when I was a kid...our cars had no airbags and no seat belts...and we liked it that way!
Junior Member
Joined: Aug 2018
Posts: 56
Likes: 9
2014 E63 S-AMG Wagon
Once again 2014 E63 with a passenger side airbag deactivation light on while driving. I’ve done a bit of research but it seems like it could be the seat mat which commonly goes. Does this sound correct and does anybody have a part number and is this easy to source OE or aftermarket? TIA
Trending Topics
Junior Member
Joined: Aug 2018
Posts: 56
Likes: 9
2014 E63 S-AMG Wagon
They found an open circuit within the seat position sensor. And apparently that sensor is only available as part of the complete seat bottom assembly and it's not available through MB anymore. They gave me a part number for it - 212-910-39-12-9E38 - but a quick google search shows roughly $1,000 parts. Haven't gotten much further along than that...
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Super Member
Joined: Jul 2006
Posts: 882
Likes: 93
Multiple
I had the same problem (passenger seat mat failure causing SRS warning light) in my W463 G63. For what it's worth / your mileage may vary / use at your own risk etc,
https://www.ebay.com/itm/375913267963
Pretty easy to install I then used my foxwell NT604 code scanner to clear the code and its resolved.
https://www.ebay.com/itm/375913267963
Pretty easy to install I then used my foxwell NT604 code scanner to clear the code and its resolved.
Junior Member
Joined: Aug 2018
Posts: 56
Likes: 9
2014 E63 S-AMG Wagon
I had the same problem (passenger seat mat failure causing SRS warning light) in my W463 G63. For what it's worth / your mileage may vary / use at your own risk etc,
https://www.ebay.com/itm/375913267963
Pretty easy to install I then used my foxwell NT604 code scanner to clear the code and its resolved.
https://www.ebay.com/itm/375913267963
Pretty easy to install I then used my foxwell NT604 code scanner to clear the code and its resolved.
Super Member
Joined: Jul 2006
Posts: 882
Likes: 93
Multiple
No, a Mercedes seat mat emulator does not disable the airbag; instead, it tricks the car's computer into thinking the passenger seat is always occupied. This keeps the passenger airbag enabled and functioning, which is crucial for safety but means you should never place a rear-facing child seat in the front passenger seat when using an emulator
Junior Member
Joined: Aug 2018
Posts: 56
Likes: 9
2014 E63 S-AMG Wagon
I see... that could be the solution. Thanks!
**Edit** It is not, they don't appear to have one for North American W212s... grrr. I did find this but they say it's not for USA or Canada cars.
**Edit** It is not, they don't appear to have one for North American W212s... grrr. I did find this but they say it's not for USA or Canada cars.
Last edited by nvr-nrcd-nbdy; Oct 20, 2025 at 11:53 PM.
