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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Bolster won't inflate



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      01-09-2016, 11:55 AM   #1
thesanchez
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Bolster won't inflate

After almost a year I finally figured out what the little button does towards the front of the seat, it pumps up the side bolster. Well it should do anyway. My passengers side is fine but the drivers seat won't inflate. I can hear the compressor but what bags don't inflate. Anyone come across this problem and solved it? I think I'm going to have to take the seat back off the drivers seat and take a look. Are the seat backs easily removed on a E92?

Thanks.
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      01-09-2016, 04:58 PM   #2
ptpending
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well known problem - valve body fails
seat back removed without problems, but you have to replace clips after that
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      01-09-2016, 05:07 PM   #3
Tim G
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You wait til you figure out how much a replacement valve is!
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      01-09-2016, 08:11 PM   #4
thesanchez
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Quote:
Originally Posted by Tim G View Post
You wait til you figure out how much a replacement valve is!
Excellent. Care to give me an idea (and part number).
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      01-10-2016, 06:03 AM   #5
thesanchez
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Looking at the lumbar support retrofit DIY guide and using realoem.com it seems I need part 52107138788. A cool $300?!

eBay have a few at bout 70 (how soon before they break though?) or I can get a brand new one from Leebmann24 for about 130 (170 euros) which looks like the best option to me.
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