ctown113

I absolutely love the seats in my sedan. My question is:
Are the side lateral supports (the ones that make you feel nice and snug on your ribs) filled electrically with AIR? Or are they completely mechanical?

I ask this because it seems when I get in to my car after it has been sitting over night or after a 9 hour day at work, it seems they have deflated or opened up, hence I have to reset them again. (which is fine)...


Either I'm losing weight in that period or they're somehow filled with air?
Just curious about every detail of my prized possession

Thanks for any input.

c63edition1

im pretty sure its air ! while we're on the topic, anyone realized the seat getting loose with time ! not as tight in terms of stock position (not topped up)? cause when i clean the dash sitting the passenger seat i realize it feels soo much tighter, like the day i first got it ! thats really bad since ive only had the car for 9 months

natman316

hmm i dont think there is any adaptive support system with our seats, just really heavily bolstered bucket seats.

edition1, did you adjust your side bolsters? (you can adjust the side bolsters with the buttons on the side if you didnt know)

ctown, what do you mean by reset them?

c63edition1

hahahahahah ... just picturing my face if i hadn't known that .. would have been like finding gold !! :P .. i know what u mean but im talking about fully deflated, it does not feel like it used to ! sit in your passenger seat and tell me it doesnt feel significantly tighter ! also cause my GF is 5'2" and 95lbs, so she fits right in the middle without stretching out the seat so to say .. whereas your ol friend over here (me) im 6'2" and 190lbs i must stretch out the bolsters ! ... also, doesn't it **** you off when people get out of your car in 2 motions rather than one fluid motion ... they turn to the right while their thighs are weighing down on the seat then push themselves up from there, completely oblivious to how much that ticked off my OCDness

natman316

LOL ya thought u knew, just checking. I dont have leather on my car so wear doesnt seem too bad. but it does annoy me also that people sit on the bottom bolster like that LOL. and i hear ya my gf is also small, she has the bolsters all the way in and she doesnt really feel anything lol (helps with bolster wear i guess ). I havent tried comparing them with the bolsters at the same setting....i still dont think there is inflation for the bolsters or anything is there? or am I missing something (part of the leather pack? the website doesnt say anything though)

c63edition1

not the lower, just the top ! what i was talking about is the seat as a whole feels more loose ! you'll understand when you sit in a brand new seat then compare it to yours .. i thought leather was standard ? what do you have ?

natman316

yeah i get what your talking about. I'm curious now if my seat is actually looser than the pass. too bad im away.

nah leather isnt standard LOL. i have the standard mbtex/dinamica seats....quite nice. I like the dianmica seat inserts but mbtex feels cheap. oh well they dont wear as bad (i've seen c63s with some f-ed up leather lol) and I always have fat friends hopping in and out of my car so i guess it pays off.

driftmotion

LOL that's because the driver seats gets more use
king of like anything else ... the cushions loose their firmness the more they are used!

ctown113

Oh, "reset" just meaning making them tight again by pressing on the lower button

ctown113

[QUOTE! ... also, doesn't it **** you off when people get out of your car in 2 motions rather than one fluid motion ... they turn to the right while their thighs are weighing down on the seat then push themselves up from there, completely oblivious to how much that ticked off my OCDness[/QUOTE]

Lmao^ YEAH!!! +1

ctown113

So it IS or ISN'T AIR???

otakki

It has to be air. When it's quiet, I think you can also hearing the hissing of air. I don't think mechanical bolster will be able to create even inflation like that.

ctown113

Thanks Otakki..
I guess I was curious bc I am almost positive that my previous e92 M3's side bolsters were mechanical.. Not the lumbar (I believe it was air filled bc I could hear a pump like device when adjusting the lumbar support), but the bolsters never "deflated" or made the sound.

anyways, thanks! AIR it IS!!!

otakki

Just remember I'm fairly sure but not 100% sure.

ctown113

SheryarYO

i figured it was air. isn't there like a hose looking thing under the seats. i've noticed it a few times when i was vacuuming the back and just figured that's what it was for. i'm probably 1000% wrong though.

natman316

So we have active side bolsters!?!?!? Im so confused. Or is it just filled with air

DuaneC63

100% sure it's air as one of my seat air pumps failed underwarranty

driftmotion

ya the BMW ones are mechanical ... the MB ones in the C have no moving parts