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      10-10-2012, 06:45 PM   #16
WilliamS
GoofBall
 
Drives: 2008 E92 N54 Xdrive
Join Date: Jun 2012
Location: Tampa, FL

Posts: 710
iTrader: (1)

Quote:
Originally Posted by marshall834 View Post
I think I hear that pump every time you open a door, unlock your doors, correct? Small humming sound.

I'm not so sure I've ever heard the exhaust flap closing. I'll have to pay attention to that.

Regardless, good info, thanks!
Yup when you open the door you can hear it. Mine has failed a few months back I will get around to repacing it, after I found out its function I just set my JB4 to autoclear the code it would set off and Ill worry about it when I have the time to care.
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