05 mb c320 107k miles

Asked by joep151 Jul 10, 2016 at 10:17 AM about the 2005 Mercedes-Benz C-Class C 320 4MATIC AWD Sedan

Question type: Maintenance & Repair

car runs great on highways...ruff when slower than 40      possible mass air flow ?

3 Answers
41,935

Auto_Centric answered 7 years ago

Lots of possibilities but It's simple to clean the MAF sensor on an older car it should be done anyways. along with new HEGO's ...Scan the vehicle for DTC codes too. Check a Mercedes forum for info

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bobkat answered 7 years ago

I would be looking at cleaning the injectors. A very common problem - especially if you have been running other than Tier 1 fuel. Try Chevron or similar top quality cleaners for a few tankfuls. That will normally fix the problem quickly. You will be able to feel the difference.

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