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Allen 1/7/2019

2003 Mercedes Benz E500 Base 8 Cyl 5.00L

Transmissions & Drivetrains

Car makes a tapping or knocking noise after u take off an get to a steady speed or around 20 mph if u r wasting off

Car runs good no sounds at idle or pressing gas An sound is steady even while down shifting (automatic) until under 20 mph it goes away. Need help

1 Answer


Jimm 1/8/2019

Very difficult to diagnose noises or sounds via the internet, even with photos or recordings.

Many possibilities with the lack of details provided; low engine oil level (check and refill when the engine is cold), engine vacuum leak, engine air intake leak, excess engine mileage (normal wear and tear) - to list only a few.


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