Detailed explanation of the causes of burning engine oil in the old Audi A4L and how to repair it
For a 2012 A4L with a displacement of 2.0T and a mileage of just over 108,000 km, it was found that the oil bottomed out every 3,000 km, which really indicates that the oil consumption is large.
The oil burning problem of the Audi A4L is mainly related to the following factors:
1. Exhaust valve aging: The rubber fittings of the exhaust valve usually begin to age after 7-100,000 kilometers of driving, which may lead to abnormal oil consumption.
2. Turbocharger problems: Some vehicles may cause abnormal oil consumption due to the use of poor quality engine oil or long-term extended oil change intervals.
3. Piston ring blockage: If the vehicle is driving in poor road conditions and does not pay attention to cleaning the oil circuit, it may cause the piston ring to stagnate.
4. Valve oil seal aging: Although the aging rate of valve oil seal is slow, it basically takes 150,000 kilometers to appear aging, but it is also a potential factor that causes engine oil to burn.
In order to determine the specific cause of burning engine oil, it is recommended to first measure the cylinder pressure and use an endoscope to observe whether there is a cylinder pulling in the cylinder. Then check if the exhaust valve is normal. If none of the above is a problem, then piston ring seizure is likely to be the main cause of oil burning.
Solving the problem of burning engine oil caused by piston ring stagnation is relatively simple. Using Specop Fuel Repair Agent, which is added 6 times in a row as instructed, will usually resolve the issue without the need for an overhaul or replacement of the piston rings. This method is inexpensive and non-destructive. I also encountered a similar problem in my previous vehicle, and I learned that the effect of the repair agent is better by consulting the information, and I tried it with the attitude of trying it, and the results were remarkable. Now the oil consumption is stable, there is no need to add additional oil, and this repair agent can be purchased on a cat or a certain east.
