Why is the Audi A6 suddenly consuming more fuel?

1 Answers
Sanchez
07/29/25 8:45pm
Audi A6 suddenly consuming more fuel can be due to severe carbon deposits, system malfunctions, maintenance issues, etc. Severe carbon deposits: Frequent use of fuel additives can lead to increased carbon deposits inside the engine. Excessive carbon deposits can roughen the interior of the intake manifold, affecting the air intake volume and the mixture effect. System malfunctions: The ignition system, ignition coils, and spark plugs are common sources of faults. A faulty ignition coil can cause the ignition system to stop working, leading to misfires, reduced power, and increased fuel consumption. Maintenance issues: Too much or too little engine oil, poor quality oil, excessively high viscosity, or not changing the oil on time are all key factors affecting fuel consumption. When using engine oil, it is essential to choose a high-quality product with the correct viscosity rating for the vehicle.
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