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      03-11-2012, 03:43 PM   #4
Jax543210
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Drives: 2007 Z4 Coupe
Join Date: May 2011
Location: Jacksonville

Posts: 82
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Good suggestion.
Z4 3.0 si
The Sound generator pipe is securely plugged into the firewall.
No visible cracks or damage in the piping either.

Problem persists.

Anyone know where the e-box fan is and how it vents or draws air?
Attached is a picture of it.

It looks like it draws air from the footwell and out to the engine compartment?
Attached Images
 
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