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      06-12-2012, 05:36 PM   #19
Jax543210's Avatar
Drives: 2007 Z4 Coupe
Join Date: May 2011
Location: Jacksonville

Posts: 82
iTrader: (0)

one of the flaps in the dash has a spring. When the car turns on the flap opens or tries to open, but when the car turns off the spring pulls the flap shut so the car doesn't heat up from engine heat. The noise comes from the system trying to open the flap, but not being able to because plastic gears and plastic shaft(s) etc are broken.
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