i have tried endless adjustments. There is no adjustment that moves the side bolster on the seat cushion. There are adjustments for theigh support, back side bolsters and lumbar, but none of these affect the seat cushion where your ass goes. :)

When I was first looking into my next car c.2016, I ran across some reviews (sorry, didn’t save the links) that complained about the seat comfort. When my Audi finally finished its protracted death process, I looked again, and couldn’t find those reviews. I did really pay attention to the seat comfort on the test drive of my 2012 CLS, and I drove it a bit extra to be sure, because I was concerned about the seat comfort. Bottom line: the seats work well for me. That is, of course, irrelevant if they don’t work well for you.

The seats in the CLS seem to generate more complaints than some. Unfortunately, the best advice I have is to do a good, long test drive, and really pay attention to the seats. This is completely unhelpful to those who already own a car they find uncomfortable.

I wonder if these seats are designed for a narrower range of body shapes. I don’t know why MB would do that. You guys aren’t alone in having difficulty with seat comfort in the CLS.

Addendum: https://www.roadandtrack.com/new-car...cls550-4matic/
link includes complaints about seat comfort in the 2014 CLS.

I think the problem is the bottom cushion side bolsters are too stiff. They just aren’t as compliant and as a result they apply unnecessary pressure to the sides or bottom of your buttocks. I have a workable solution now that angles the front of the bottom cushion up so some weight is taken off my butt by my theighs but I would really dread having to drive 8hrs at a time in these seats. I’d probably have to get an old man seat cushion gel pad to get through a day of non-stop driving :(

If you look at any car that’s several years old, the sides of the bottom cushion are usually in the worst shape... deformed, deflated, wrinkled, etc. I wonder if Mercedes thought that adding stiffer foam or even metal frame elements to these bottom side bolsters would help them keep their shape over time. Whatever it is, I think it was a mistake.

Not sure if OP fixed this or not, but think the W212 is the same seat frame here.

Thought this might help. Go towards end where pictures are. Mine was horrible and found a way to fix it permanently. Used to be painful, now one of most comfortable for a couple hundred bucks. Has been perfect ever since (10,000 miles). When doing my research I kept seeing part numbers that suggested cross reference from the E class sedan (mine - 2014) to the cls as well.

https://mbworld.org/forums/e-class-w...seat-pain.html

After buying a Mercedes, I no longer need a wallet... nothing to put in there. My pay checks get direct deposited to my local dealer :)