The seat bolster switch

[Gizmo-R]

So....... I decided to RTFM and discovered a switch at the corner of the seat which tightens/loosens the bolsters to hug your back

Only thing is when I tighten/inflate the bolsters for a snug fit, after a while it feels like they deflate or loosen up such that you can inflate them again. Does this happen to anyone or is it just a placebo effect?

 

[Z4MO]

Is your car an M ? I wouldn't mind that feature. Sorry I cant help any further as my cars in for some mods

 

[Maniac]

As this is an e89 section it won't be an M as there isn't one.

The bolsters are pneumatic so will deflate in time but it usually takes a day or two for them to go back down ime.

 

[vectramat]

Mine deflate within a couple of hours though