SL/R231: Are the pre-facelift SL63 seats the same as the SL550?
MBWorld Fanatic!
Joined: Feb 2021
Posts: 1,419
Likes: 739
From: Nor-Cal
2020 GLC300 -2014 Sl550 - 1997 SL600
Are we talking about swapping out the whole seat? I haven’t done this swap personally. Bolting in shouldn’t be an issue.
Quickly looking through the EPC, the seats DO appear to share the same electronics. (As long as both seats have same options (active seats, heaters etc..)
If you’re swapping the whole seat out, you’ll need to run adaptation. Which is where the firmware on some of the electronic modules might show up.
I would dig through the EPC or this site below and double check. You can double check years compatible by searching for the part number on google.
https://nemigaparts.com/cat_spares/e...231473/d45/91/
If you’re still hanging on to your old seats you could always swap modules out, but I think you should be OK.
Good Luck!
Quickly looking through the EPC, the seats DO appear to share the same electronics. (As long as both seats have same options (active seats, heaters etc..)
If you’re swapping the whole seat out, you’ll need to run adaptation. Which is where the firmware on some of the electronic modules might show up.
I would dig through the EPC or this site below and double check. You can double check years compatible by searching for the part number on google.
https://nemigaparts.com/cat_spares/e...231473/d45/91/
If you’re still hanging on to your old seats you could always swap modules out, but I think you should be OK.
Good Luck!
Last edited by crconsulting; Oct 20, 2025 at 10:43 PM.
Thread Starter
Super Member
Joined: Nov 2010
Posts: 693
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From: USA
m157 SL63
I've had issues with the massage where people can't find what the issue is, and was thinking maybe I would just get a different seat from ebay and have it installed. However, SL63 seats are very difficult to find due to the small volume of sales.
Senior Member
Joined: Jan 2019
Posts: 480
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From: Philadelphia area
2014 SL65 AMG, 2018 S560
Seat massage problems are not necessarily caused by the seat. There can be leaks in the pressure reservoir, the lines at the pump, or the pump itself.
MBWorld Fanatic!
Joined: Feb 2021
Posts: 1,419
Likes: 739
From: Nor-Cal
2020 GLC300 -2014 Sl550 - 1997 SL600
I think finding the issue, will be potentially be more cost effective, than throwing parts at the car. Definitely check the basics first. Fuses, wiring, pump etc…
Finding exact match for the seats (with same options) will be another challenge. If your seats are in good shape, then I would definitely try to find the issue.
If your existing seats covers are damaged, then that would be a good time to find another seat to swap. If you do find another seat, you can probably code the car for different options or swap covers.
Is it both seats with massage failing or is it just one? Mileage?
Good Luck
Last edited by crconsulting; Oct 22, 2025 at 07:29 AM.
