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      04-13-2013, 06:14 PM   #4
JNoSol
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Drives: 750 MSPORT & E90M3
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Quote:
Originally Posted by asci01 View Post
It's normal. It's caused by the higher pressure fuel injectors our direct injection engines now use. MB, Cadillac and all direct injection engines have the same loud ticking. It's a common side effect. Search google for direct injection ticking noise and you'll get plenty of detail.
+1. High Pressure Direct Injectors, sounds like a diesel motor with the hood opens.
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