Side Bolster/Lumbar Adjustments Suddenly Stopped Working...
Thread Starter
MBWorld Fanatic!
Joined: Aug 2014
Posts: 1,060
Likes: 98
From: Montreal, QC
E55 AMG & C63 AMG
Side Bolster/Lumbar Adjustments Suddenly Stopped Working...
2013 C63 Sedan. The three buttons for lumbar adjustment and side bolster adjustment are not working. I recall they worked a month ago...
Anybody ever have this issue? Doesn't work for both driver and passenger side seats.
Anybody ever have this issue? Doesn't work for both driver and passenger side seats.
Thread Starter
MBWorld Fanatic!
Joined: Aug 2014
Posts: 1,060
Likes: 98
From: Montreal, QC
E55 AMG & C63 AMG
MBWorld Fanatic!
Joined: Feb 2010
Posts: 5,649
Likes: 484
2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
In some cases people reported that the wire in the seat can be damaged between the seat bottom and the back. It may be shorting out or could be broken. Unlikely that both seats would go at once but it is possible one has been damaged for a while but never adjusted to know the problem existed. I would check the fuses first and if they are fine or just continue to blow I would suspect the wire in the seat is damaged.
MBWorld Fanatic!
Joined: Aug 2016
Posts: 2,405
Likes: 724
12 C63BS Magno Alanite Grey, 25 X5 Msport, 08 BMW E93, Ducati Hyper 698
Ya it is a common issues over the years, mostly it is a blown fuse but the fuse is blown by a pinched wire (or if the fuse is good the wire didn't short but has become damaged. There is a good thread on it somewhere, I think that person took the seat out but. Will see if I can find it.
MBWorld Fanatic!
Joined: Aug 2016
Posts: 2,405
Likes: 724
12 C63BS Magno Alanite Grey, 25 X5 Msport, 08 BMW E93, Ducati Hyper 698
Trending Topics
Junior Member
Joined: Jul 2018
Posts: 69
Likes: 7
From: Canada
'19 4runner TRD / '12 C63 AMG
I noticed this also on our 2012... Both sides inoperable. Checking fuses shortly...
Gonna check with the dealer and see if there's any way this could be covered after the factory warranty has expired, as it seems to be a common issue with the entire model line (2008 - 2015).
Other than that, everything seems Kosher (so far, knock on wood) with our recent purchase.
Gonna check with the dealer and see if there's any way this could be covered after the factory warranty has expired, as it seems to be a common issue with the entire model line (2008 - 2015).
Other than that, everything seems Kosher (so far, knock on wood) with our recent purchase.
Last edited by J0HN_R1; Sep 5, 2018 at 02:12 AM.
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
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
Member
Joined: Aug 2012
Posts: 194
Likes: 18
C63 P31, C320
Its a known issue with the seats mine does it as well. ( Fuse 56 in the trunk is what your looking for ) Sometimes i can go a month without it going out and sometimes it pops right away. Just depends on how ur seat is positioned. I do wanna fix this myself at some point
Member
Joined: Jul 2011
Posts: 188
Likes: 13
-
I had a loose/disconnected air hose (what is used to pump the air into the sides and lumbar). You might wanna check it out also. I don't know where it exactly is located under the seat, because I had mine checked by the dealer.
Junior Member
Joined: Jul 2018
Posts: 69
Likes: 7
From: Canada
'19 4runner TRD / '12 C63 AMG
Junior Member
Joined: Jul 2018
Posts: 69
Likes: 7
From: Canada
'19 4runner TRD / '12 C63 AMG
Cheers !
*edit - they definitely work now. We'll see for how long.
Last edited by J0HN_R1; Sep 7, 2018 at 01:34 AM.
MBWorld Fanatic!
Joined: Nov 2009
Posts: 4,438
Likes: 388
From: Relocated
2010 Irridium Silver MB C63 AMG Sedan
In some cases people reported that the wire in the seat can be damaged between the seat bottom and the back. It may be shorting out or could be broken. Unlikely that both seats would go at once but it is possible one has been damaged for a while but never adjusted to know the problem existed. I would check the fuses first and if they are fine or just continue to blow I would suspect the wire in the seat is damaged.
Fuse 56!!!!
MBWorld Fanatic!
Joined: Sep 2016
Posts: 1,175
Likes: 130
From: NY
2010 C63 2019 GLA45
I started to look in the WIS:
Here's all that 56 can have, for cars 2009 and up:
Trailer socket X58
Driver seat lumbar support and side bolster adjustment switch group S109/4
Front passenger seat lumbar support and side bolster switch group S109/5
Front passenger seat AMG valve block Y109/3
Driver's seat AMG valve block Y109/2
I wonder what these AMG valve blocks are ....
Here's all that 56 can have, for cars 2009 and up:
Trailer socket X58
Driver seat lumbar support and side bolster adjustment switch group S109/4
Front passenger seat lumbar support and side bolster switch group S109/5
Front passenger seat AMG valve block Y109/3
Driver's seat AMG valve block Y109/2
I wonder what these AMG valve blocks are ....
