What Causes the Audi A6L to Shake at Idle When Cold?

[IsabellaLee]

The reasons for the Audi A6L shaking at idle when cold are: 1. The exhaust pipe and oxygen sensor are at a low temperature, preventing the vehicle's ECU from obtaining accurate data, leading to errors in ignition and fuel-air mixture control, which results in reduced power output; 2. Carbon deposits on the throttle valve create adhesion, preventing the fuel injection from achieving proper combustion; 3. Variations in ignition gaps cause power deviations among the cylinders. The dimensions of the Audi A6L are: length 5038mm, width 1886mm, height 1475mm, wheelbase 3024mm, minimum ground clearance 117mm, fuel tank capacity 73L, and it features a 4-door, 5-seater sedan body structure.