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      04-23-2020, 01:28 PM   #10
Toneaero
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Drives: X5M
Join Date: May 2013
Location: MN

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Quote:
Originally Posted by igell View Post
bringing this up from the dead... so i recently had some rear bumper body work done ... and after, hitting the M button does not activate the exhaust valve to open.

i looked at the rubber hose underneath and it seems intact and connected. any idea where i can start looking. I feel that its just not connected somewhere in the bumper.

any way to remedy this without removing the bumper?
I did end up fixing my issue. The hose was cracked near the actual vacuum pump under the hood. I replaced that short piece and worked like a charm. I hope your fix is as easy as mine.
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