Getting frustrated on w212 5.5 info.. - Mercedes-Benz Forum

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post #1 of 1 (permalink) Old 08-11-2010, 10:07 AM Thread Starter
BenzWorld Senior Member
Date registered: Jan 2010
Vehicle: E 550 4 matic 2010
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Getting frustrated on w212 5.5 info..

I ve posted under the w212 section but maybe because of the new model theres not much info and experience and participation there. My issue is my 2010 E550 with 4,000 miles has a slight knocking engine sound at idle and more so when in drive/reverse.(lower RPMs) This is not heard inside the car but it still troubles me. Dealer claims they can t hear anything. My Silverado truck has a quieter engine. It sounds deeper than a valve tap or injectors which I ve heard as I ve owned several MB s. I can t isolate the sound. Wondering if it easy and possible to remove the belt and run the engine to see if it s being caused by a pully or belt or something???? Engine runs qiuet and smooth other than that but I m not impressed with this diesel sound. I would have to say to be fair that your average person would probably not notice, but I do. End of rant

2010 E550 4matic, AMG Package
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