What to do if the Audi A6L 2.4 has severe oil burning?
1 Answers
Audi A6L 2.4 severe oil burning measures introduction: The only solution is to repair the engine. Oil burning in motor vehicles is a serious issue. Do not simply rely on adding fuel additives to resolve the problem, as this will not completely address the oil burning issue. Only by repairing the engine, disassembling it, and addressing the specific problems can the issue be resolved without affecting usage. Below are the reasons that may cause oil burning: 1. Cold engine oil burning: When the car's temperature has not fully warmed up, the engine exhaust pipe emits a lot of blue smoke, but it returns to normal after the car warms up. This phenomenon is caused by aging valve stem seals. Due to the drop in temperature, the rubber material of the valve stem seals becomes stiff, leading to incomplete sealing. Oil leaks from the valves into the combustion chamber and burns, resulting in the above phenomenon. 2. Hot engine oil burning: After the car reaches normal operating temperature, the exhaust pipe still emits blue smoke. This indicates poor sealing of the piston rings. Due to the poor sealing of the piston rings, oil is forced by the oil pump directly through the leaking piston rings into the combustion chamber and burns, resulting in blue smoke from the exhaust pipe. There are several reasons for this phenomenon, such as material aging, carbon buildup jamming, excessive cylinder liner wear, etc.