Question about Mercedes-Benz ML

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Knocking noise car

Hi, I can hear and feel a slight knock noise as soon as I accelerate from a stationary position? The knock only happens once on take off. I also did a test by keeping the car in "drive" gear and accelerated slightly and the same noise happens. Does anybody know what the issue could be? Transmission or mounts etc?

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  • 14 Answers

Hello,

Sounds like your engine mounts need to be replaced. Thats a common issue on ML's hope that helps.

Posted on Nov 25, 2014

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emissionwiz
  • 76846 Answers

SOURCE: making a knocking noise

This is most likely either a piston noise or a connecting rod bearing knock

Posted on Oct 21, 2008

csmock132
  • 4669 Answers

SOURCE: 1997 Suburban 4x4 5.7L Transmission whines until it shifts

You rear planetary set is worn from a restricted cooler.

Posted on May 06, 2009

  • 22 Answers

SOURCE: accelerated clicking/knocking noise when i start driving

sounds like your CV joints are worn out. If the clicking noise gets worse when turning then its a definite possibility. Also check the CV joint boots for splits as this can quickly wear them out. The dust mixes with the grease to form a grinding paste.

Posted on Jun 10, 2009

  • 1 Answer

SOURCE: engine or transmission knock / rattle upon

I had the same problem on my 2006 Lucerne and it was the engine mount located on the front of the vehicle behind the radiator.

Posted on Aug 24, 2009

  • 14036 Answers

SOURCE: knocking noise when i accelerate

CHECK ALL DRIVE BELT ACCESSORIES LIKE ALTERNATOR - AIR CONDITIONER COMPRESSOR AND CRANKSHAFT PULLEY.I HAVE SEEN A LOOSE OR BAD TRANSMISSION MOUNT CAUSE KNOCKING NOISE IF ENGINE ACCELERATED.

Posted on Mar 01, 2010

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