Humming sound from engine on CLK500
01-13-2003, 09:25 PM
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2004 Audi S4, 2003 CLK 500
Humming sound from engine on CLK500
What can possibly be causing the humming sound from the engine on my CLK500. When I start the car up after it has been sitting out all night in the cold, the engine hums when it is idling. After I put it in gear and drive away the humming goes away. What's up with that. I am not referring to the ticking sounds that some people are complaining about on the new CLK500's and new E500's
