Check Engine Light on Due to Failed Catalytic Converter on Mercedes-Benz C55 AMG

Catalytic converter failure is common and may cause a Check Engine Light to illuminate.

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Average mileage: 108,000 (108,000–108,000)
2 model years affected: 2005, 2006
4 people reported this problem
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Well mine is a CLK55 but the same engine and catalyst. The dealer changed it and it was not cheap.