What are the common issues with Audi vehicles?

[DiBrooke]

Some Audi models experience issues such as rough idling and excessively loud engine noise. Poor quality or substandard gasoline: This typically occurs when low-quality fuel is added at non-compliant gas stations, resulting in incomplete combustion of the air-fuel mixture during engine operation and triggering the engine warning light. While this doesn't affect driving safety, it may cause varying degrees of damage to the engine. Oxygen sensor malfunction: Vehicles are equipped with two oxygen sensors, one before and one after the three-way catalytic converter. The front oxygen sensor monitors the air-fuel ratio under different engine operating conditions, with the ECU using this signal to adjust fuel injection and calculate ignition timing. The rear sensor primarily monitors the performance of the catalytic converter. Therefore, damage to the oxygen sensor or its connector, or loose connections, can lead to either excessively lean or rich fuel mixtures, triggering the warning light.