SL-Class (R231) 2013 on: Discussion on the SL550

SL/R231: driver's seat lost it's support

Old Jan 30, 2024 | 12:22 AM
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driver's seat lost it's support

I think the previous owner must have weighed a lot, because my driver's seat cushion is FLAT and has no support. The upright back, and the sides are fine. To compare, I sit in the passenger seat, and it feels fine.

So, my question is: Can the driver's and passenger's seats be swapped? They look to be the same in my 2015 SL400.

Alternately, has anyone added cushioning or modified the driver's seat to restore it to original level of support?

In mine, the flat part of the seat near the rear of the seat just has no support; it sinks in with little pressure. The passenger seat does not do this.

I have the comfort seats with massage, etc. All that works fine.

Ideas? Suggestions?

Thanks, Joe
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Old Jan 30, 2024 | 11:07 AM
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I believe the foam (and seat) is not interchangeable, but it is still available from factory MB PN 231-910-35-00. It’s around $350.00.
https://www.mercedespartscenter.com/oem-parts/mercedes-benz-seat-cushion

If you’re going to do the repair, it would be better just to buy the part rather than take two seats apart and still end up with one bad seat.

Does the seat make noise when you drive over bumps? Seat heaters still work?



Last edited by crconsulting; Jan 30, 2024 at 11:17 AM.
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Old Jan 30, 2024 | 01:26 PM
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Thanks for your reply and suggestions.
Yes, heater and everthing on both seats is fully operational.
Rather than swapping the foam, I was thinking of just unbolting each seat, and swapping their positions (passenger to driver's side, and versa visa).

Both seats have the same features and connections (I think).

What of that swapping idea? Too stupid? I rarely have anyone in the passenger seat, except my wife, and she is small and lightweight! :-)
Joe
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Old Jan 30, 2024 | 01:38 PM
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Yeah, unfortunately the seats are definitely different from side to side. Look at the safety belt configuration closely. Not to mention the way the bolt up to the rails...
On top of that, each seat is has a software "adaptation" for that particular car, so you'd need XENTRY to run adaptation again. Unfortunately, It's not like the old days, where you could unbolt and swap things out.

its also possible you'll need to run adaptation again after doing the seat padding swap if the seat is disconnected too long.

Last edited by crconsulting; Jan 30, 2024 at 01:50 PM.
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Old Jan 30, 2024 | 02:03 PM
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Ah hah, said the blind man, now I see.

Thank you for your insights - how did I miss the obvious seat belt issue? Not as bright as I once was.

Maybe i'lll just fold a beach towel up and lay it in my seat. Simple, but blocks the heat and the air ... oh well, looks like another trip to the dealer.

Thanks again mi amigo!

Joe
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Old Jan 30, 2024 | 08:45 PM
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You can run the seat adaptation using the LAUNCH Creader Elite 2.0 BENZ. Not sure about other aftermarket scanners.
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