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      01-23-2013, 11:19 PM   #3
rking117
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Drives: Z4 3.0i & 320i
Join Date: Aug 2012
Location: USA

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that is Direct Injection. The Newer vehicles have it and it is loud with the hood open. Almost sounds like a diesel. It is normal
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Enjoying an E89 Z4, F30 320i and Fiat Abarth //
E85 Z4 (sold), E82 128i (sold), Fiat Pop 500 (sold)