What Causes the Engine Light to Illuminate in an Audi A6?

1 Answers
AllieAnn
07/28/25 2:15pm
Audi A6 engine light illumination may be caused by the following specific reasons: 1. Incomplete combustion of the air-fuel mixture in the cylinders. 2. Carbon buildup on the piston crown leading to poor atomization, which in turn causes incomplete combustion. 3. Sudden drops in ambient temperature. Computer temperature correction issues during startup may trigger the fault light. 4. Excessive engine mileage causing weakened spark plug performance characteristics. 5. Excessive carbon deposits and ignition difficulties may lead to ignition coil failure, resulting in incomplete combustion. 6. Advanced vehicle age causing mechanical aging. 7. Malfunctions in certain sensor control modules themselves.
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