Why does the Audi A6 shake severely during acceleration?

[SanAdriel]

Audi A6 shakes severely during acceleration due to the following reasons: Unstable oil pressure: Abnormal fuel pump supply pressure or incorrect intake pressure sensor values can cause body shaking. It is necessary to check the oil pressure in advance and replace components if necessary; Severe engine carbon buildup: After driving for a period, the throttle may become too dirty, leading to incomplete closure or idle motor jamming. The carbon deposits generated during this process cause vehicle shaking, especially when starting the engine, which may shake more severely than usual. Timely carbon cleaning is required; Ignition system issues: During cold starts, the engine requires a richer air-fuel mixture, which demands higher ignition energy. If the spark plug gap is too large, or the ignition coil and high-voltage coil are aging, the ignition energy may decrease, resulting in body shaking. The spark plugs and cylinder wires should be inspected, and adjustments or replacements should be made if necessary.