RepairPal's independent, master mechanics track down the best of the best in auto repair. Learn more »
Get the latest advice about your car
Model Years Affected: 2005, 2006
Catalytic converter failure is common and may cause a Check Engine Light to illuminate.
Well mine is a CLK55 but the same engine and catalyst. The dealer changed it and it was not cheap.
Common Problems > Mercedes-Benz C55 AMG