Problem Reports » Valve Stem Seals Wear and Cause Catalytic Converter Failure

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Mercedes-Benz 560SEC

 

Report: Valve Stem Seals Wear and Cause Catalytic Converter Failure

Mercedes-Benz 560SEC Problem
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Model Years Affected: 1990, 1991

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Valve stem seals may wear and cause the engine to burn oil. this can contaminate the catalytic converter and cause it to fail.