Maintain Fuel Quality to Avoid Misfires and CEL Illumination on Audi A6
Problem overview
Fuel quality must be maintained to avoid engine misfire problems; the misfires may cause the Check Engine Light to illuminate.
7 people reported this problem
1 commentAudi A6 vehicles with this problem
Average mileage: 91,000 miles
(80,000 - 102,000)
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