What Causes Body Resonance in the Audi A6?

[AylaFitz]

Here are the reasons and solutions for body resonance in the Audi A6: Poor Tire Balance: It may be due to poor tire balance. The owner should promptly perform a four-wheel alignment and dynamic balance. If the vehicle does not pull to one side, a dynamic tire balance may suffice. 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 coils or high-voltage coils are aged, the ignition energy may decrease, causing the body to shake. Inspect the spark plugs and distributor wires, and adjust or replace them if necessary. Fuel System Problems: Fuel system issues are often caused by clogged fuel lines, leading to poor fuel supply. Symptoms include engine shaking, unstable idling, and stalling while driving. Check the fuel flow rate and volume.