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      07-30-2014, 08:26 AM   #59
Jstic
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Drives: 06 Z4 3.0i
Join Date: Aug 2012
Location: CT

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Quote:
Originally Posted by JimG Z4 View Post
Thanks Jstic - what I find puzzling is that mine makes that crunching noise right before I start the engine but then the actuator works fine after that. If the gears have jumped and are out of position wouldn't it make that crunching noise any time I change from fresh to recirc (or vise versa)? I'm wondering if there is a separate signal that triggers that actuator upon start up and if I can defeat it by maybe cutting one of those four wires or something.
I thought of that too, and even tried tracing the wires and pinpointing what each one does. Could never figure out anything beyond that. My car also acted fine after it started and went through the initial gear crunching. If I remember right, it was exclusively at startup.

To be honest, I'm glad I made the repair, but if I had to do it again, I might just live with the noise, or disconnect the actuator like you did, and leave it at that. It really is a big PITA, and takes ninja fingers to complete the way I did it.
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