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      10-15-2012, 02:46 PM   #1
john08135i
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Sport seat bolsters..

Ok i have the Msport seats which i believe are the same as all other sport seats.

When i tighten my sides, only only one seems to get tighter "larger" than the left side and i have to do it almost every time i get in the car.
It seems to deflate after a few hours by itself..
is this normal?
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      10-15-2012, 05:13 PM   #2
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Try comparing to the passenger seat.

Doesn't sound normal.
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      10-15-2012, 07:11 PM   #3
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Quote:
Originally Posted by TheObviousChild View Post
Try comparing to the passenger seat.

Doesn't sound normal.
+1 for each sentence
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      10-15-2012, 07:20 PM   #4
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weird, my sport seats work well on both sides.
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      10-16-2012, 11:31 AM   #5
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mine work fine too
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      10-16-2012, 11:44 AM   #6
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So they dont deflate? I pump mine up almost all the way in.
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      12-03-2012, 11:07 AM   #7
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i have been having the same issue. i know the bolsters arent remembered inthe memory setting, but no one else uses my car so i never have to change the position.

if i tighten them all the way, after about an hour of driving, i am able to tighten them more. and not just alittle bit, but a whole lot. in addition i can almost feel them loosen over a long drive.

i also notice that when they are about 50% tight or more i only feel the left side tightening.

anyone else have this issue? is it normal? shuould we be taking a trip to out dealers?

ps. 2013 335i msport
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      12-03-2012, 11:11 AM   #8
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Glad its not just me.
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      12-03-2012, 11:16 AM   #9
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i have been trying to get down to a dealer since i got the car because i am also dealing with the notorious brake squeaking.

i may not make it until after the new year though
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      12-03-2012, 02:10 PM   #10
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They should deflate only after you turn off the ignition (to let you out..), but remember your setting (per key) and inflate when you get back in the car. Definitely not normal only one side working. And it should do this for both front seats.

This, assuming it is the same as my '07 X5 with comfort seats anyway.
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      12-03-2012, 02:20 PM   #11
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Quote:
Originally Posted by chrisny
They should deflate only after you turn off the ignition (to let you out..), but remember your setting (per key) and inflate when you get back in the car. Definitely not normal only one side working.

This, assuming it is the same as my '07 X5 with comfort seats anyway.
It's not. The bolsters, like the lumbar support, are not memory functions. Only memory functions are stored in the key. The X5's comfort seats were adjustable in 18 or 20 ways, and the active cornering bolsters were part of the memory preset; specifically, if you preferred they remain off, you'd store that profile to your key.
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      12-03-2012, 02:27 PM   #12
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Quote:
Originally Posted by juddholland
Quote:
Originally Posted by chrisny
They should deflate only after you turn off the ignition (to let you out..), but remember your setting (per key) and inflate when you get back in the car. Definitely not normal only one side working.

This, assuming it is the same as my '07 X5 with comfort seats anyway.
It's not. The bolsters, like the lumbar support, are not memory functions. Only memory functions are stored in the key. The X5's comfort seats were adjustable in 18 or 20 ways, and the active cornering bolsters were part of the memory preset; specifically, if you preferred they remain off, you'd store that profile to your key.
Well that sucks. So you have to adjust them every time? My wife's X3, with sport seats, are always the same for me. I don't think she ever adjusts them, but I rarely have to. So they certainly don't just deflate on their own unless they re inflate when you get back in. I'll check this tomorrow
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      12-04-2012, 12:05 AM   #13
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Quote:
Originally Posted by chrisny View Post
So you have to adjust them every time?
No. I adjusted mine a few times when I took delivery just to find the most comfortable setting and once I found it, I haven't had to change it/them. Always the same
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      12-04-2012, 01:01 AM   #14
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I just tested mine. My seat bolsters inflates equally on both sides all the way to the maximum. In my experience, they don't lose air and deflate. I only adjust my bolsters when I go into speed racer mode.... which is pretty rare. Otherwise they retain their plumpness.
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      06-12-2013, 03:28 PM   #15
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Are the bolster pumps supposed to stop automatically once the bolsters are fully inflated?
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      06-12-2013, 04:12 PM   #16
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Quote:
Originally Posted by john08135i View Post
So they dont deflate?
Wonder if its a problem isolated to ED cars

Sounds like you have a faulty seat bolster OP.
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