Rough idle

Asked by Nov 05, 2017 at 07:54 AM about the 2004 Mercedes-Benz C-Class

Question type: Maintenance & Repair

Hi there, when i had the car in park gear the revs
would jump up and down and the car would make
a funny noise. This happened when the engine was
hot! Any advice would be much appreciated. Thank

1 Answer

Hi tom, there is no engine light on. The" noise" is related with the air intake. Is like someones accelerating the car. Could this be because of a bad spark plug?

Your Answer:

Mercedes-Benz C-Class Experts

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    Lorne Grandison
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