i noticed a decrease in power. i performed oil change replaced spark plugs and wires and still no improvement, any suggestions?
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2003 Mercedes-Benz C320
Question: tune up
Answer #1ZeeTech January 24, 2011, 17:30Master
Is there a warning light on, like Check Engine?
Visitor, February 09, 2011, 15:20
I have a 2003 c320. I had a tuneup after 99,000 miles after receiving little power. still had very little power and check engine light went on. It turns out i didnt need a tuneup after all. It was the air flow sensor which cost me 280.00 just for the part. no labor included!