When your Audi's check engine light comes on, it signals that the engine management system has detected a potential issue needing immediate diagnostic attention. This illuminated warning often corresponds with key data collected through the OBD-II system, including diagnostic trouble codes (DTCs) that pinpoint problems such as oxygen sensor malfunctions, fuel system irregularities, or emissions control inconsistencies. By prioritizing the retrieval and interpretation of these codes, you can efficiently identify whether the cause is a minor issue like a loose gas cap or a more significant mechanical fault, ensuring that any necessary maintenance or repair is conducted promptly to uphold Audi's performance, efficiency, and reliability.
