Ignazio

Check Engine light on in Audi A4 Diesel

Hi everyone, I own a 2019 Audi A4 with a Diesel engine and 136,000 km. I've noticed that the check engine light is on. Has anyone had similar experiences or knows what the cause might be? Thanks in advance for any advice or suggestions.

(Translated from Italian)

The check engine light in a 2019 Audi A4 Diesel with 136,000 km is on, prompting concerns about potential causes. A common initial step is to ensure the gas cap is properly tightened, as a loose cap can trigger the light. If the cap is secure, using an OBD-II scanner to read error codes is recommended to diagnose the issue more accurately.

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Start by checking if the 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 can provide more specific information about the issue. Let us know what codes you find, and we can help further.

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AUDI

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