What Are the Causes of Idle Vibration in a New Audi?

[LaAllie]

Audi new car idle vibration may be caused by ignition system issues, poor fuel quality, excessive carbon buildup, etc. Ignition System Problems: If there is a fault in the car's ignition system, it can lead to poor ignition system performance, issues with spark plug firing, etc., resulting in unstable idle vibration. Check the condition of the spark plugs, high-voltage wires, and ignition coils to see if there is excessive carbon buildup on the spark plugs. If found, clean or replace the spark plugs immediately. Poor Fuel Quality: Poor fuel quality can damage the engine's performance, thus causing idle vibration issues. Timely cleaning of the car's throttle body can generally eliminate common faults. Excessive Carbon Buildup or Engine Aging: Excessive carbon buildup inside the engine can cause the gasoline sprayed by the cold start injector to be largely absorbed by the carbon deposits, leading to an overly lean mixture during cold starts, making it difficult to start and causing unstable oil pressure. Check the oil pressure and replace components if necessary.