What are the reasons for idle speed shaking in a new Audi A6L?

[SamuelDella]

Audi A6L new car idle speed shaking may be caused by severe carbon deposits in the engine, problems with the ignition system, or unstable oil pressure. Severe carbon deposits in the engine: When there is excessive carbon deposit inside the engine, the gasoline sprayed by the cold start injector will be largely absorbed by the carbon deposits, resulting in an overly lean mixture during cold start, which causes the new car to shake at idle. Ignition system problems: Poor performance of the ignition system and suboptimal spark plug firing can also easily lead to idle speed shaking in a new car. You can check the working condition of the spark plugs, high-voltage wires, and ignition coils. Unstable oil pressure: If the fuel pump's supply pressure is abnormal, causing incorrect readings or poor performance of the intake pressure sensor, it can lead to body shaking. You can visit a 4S store to check whether the fuel supply pressure and intake pressure sensor are functioning normally.