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

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

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Average mileage: 123,667 (47,000–189,000)
5 model years affected: 2001, 2002, 2003, 2004, more2005
16 people reported this problem
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problem details
2001 Mercedes-Benz C240 140,000 mi,
Engine light on. Computer NO OPERATING PROBLEMS. Engine occasionally shakes or is rough in operation.
2002 Mercedes-Benz C240 144,000 mi,
Catalytic converter making noise and check engine light comes on. Car skips when it does so. Fixing to replace converter.
2001 Mercedes-Benz C240 47,000 mi,
p0300, p 0306, p0305 dtc's Catalytic converter rattled under load