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.
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.
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.
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
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.
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.
If it were just the hose leaking, wouldn't I/you be able to hear the pump running when you press the buttons to inflate the corresponding lumbar ?
How does the back seat cover come off? I want to remove mine and see if any wire and worn through. I'll replace the fuse and see if mine starts working.
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.
Very true! I have both of my seats out. If both seats are out and non functional its most likely a fuse. I wonder if it had anything to do with the install of my face lift rear brake lights....?
Fuse 56!!!!
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
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