Check Engine Light on Due to Failed Catalytic Converter on Mercedes-Benz C350 4MATIC

Problem Description and Possible Solution

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

Problem Data
RepairPal Verified
Average mileage: 92,065 (92,065–92,065)
2 model years affected: 2006, 2007
3 people reported this problem
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check engine light on....do not know the problem