check engine on 2007 Mercedes-Benz C230

recently, the check engine light is on and off. is not time for service yet. what could it be.

by in Houston, TX on January 10, 2011
2 answers 1 comment
ANSWER by on January 10, 2011
There is a fault registered in the ECM. Your car needs to get a computer diagnostic to see what caused the problem, than it has to be repaired accordingly. After the repair the ECM has to be reset. Zee
ANSWER by on February 11, 2011
I have had this problem for 3 years. They told me it was my o2 sensors, I replaced them, light still on, I replaced my cat converter, light still on, I replaced my smog pump, light still on, I replaced my diverter valve, light still on, I replaced my muffler, light still on. Then they finally say its my computer $1600 only to be replaced at the dealership!
COMMENT by on February 11, 2011
I assume you also have a 2007 C230. Your computer should be backed by an 8 years / 80,000 miles federal emission warranty. Check the warranty info in your booklet. They should replace it for free. Zee
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