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      07-06-2010, 08:41 AM   #22
flpnout
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Drives: 2010 Dinan S3 Z4-35i
Join Date: Jun 2008
Location: San Francisco, CA

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2010 E89 Z4  [7.83]
I got the car back from the dealership and they confirmed it is the low pressure fuel pump that is going faulty. Parts are on order and scheduled to arrive Friday morning. My service advisor claimed she could not hear anything. I can't believe she could not hear what I was hearing coming from the rear. I asked her to step outside and listen near the rear wheels and still nothing. She ended up getting the shop foreman who confirmed the noise. He then still wanted to compare it to the demonstrator on the lot just to make sure. Demonstrator had no humming at idle.
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