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Check engine light comes on in my Mercedes C-Class

Hello everyone, I have a problem with my Mercedes C-Class. The check engine light is constantly on. What could this mean and how can I fix the problem? Many thanks in advance for your help.

(Translated from German)

Summary of the thread

The check engine light in a Mercedes C-Class is persistently on, indicating a potential issue. A common cause could be a loose gas cap, which should be checked first. If the gas cap is secure, using an OBD-II scanner to read error codes is recommended to diagnose the problem more accurately.

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1 comment(s)

CarlyMechanic

Start by checking if your gas cap is properly tightened, as a loose cap can trigger the check engine light. If the cap is secure, consider using an OBD-II scanner to read the error codes, which will give you more specific information about the issue. Let me know what you find or if you need further assistance!

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MERCEDES

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CKLASSE