Engine noise
Thread Starter
Newbie
Joined: Sep 2015
Posts: 2
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From: Westbury, NY
C300 4Matic
Engine noise
I have a 2011 C300 with 65k miles, sometimes when I start the engine it makes a knocking sound for a few second and goes away. What could be the cause?
Last edited by Tpat859; Oct 8, 2018 at 07:44 PM.
