Mercedes-Benz C240 4MATIC Problem Report

Mercedes-Benz C240 4MATIC Check Engine Light on Due to Failed Catalytic Converter

(9 reports)

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

Check Engine Light -
Catalytic converter went out at 22000 miles. Sounded like BBs rolling around under the car. -
just fixed it and luckily it is still within warranty. -
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