What to do if the Q5 car is burning engine oil?
2 Answers
Cold engine burns oil but returns to normal after warming up. Remove the engine cylinder head and replace the valve stem seals. If blue smoke is still emitted from the exhaust pipe when the car reaches normal temperature, remove the oil pan and replace the piston rings.
As a long-time Audi Q5 owner, I've experienced the troublesome issue of oil burning, which was evident from blue smoke in the exhaust and increased fuel consumption. Oil burning is primarily caused by worn piston rings or cylinder wall damage, and it could also be due to aging valve seal issues. My first recommendation is to promptly check the dipstick to ensure the oil level is normal and avoid running the engine dry. If the oil consumption is too rapid, such as losing more than half a liter per thousand kilometers, take it to a professional repair shop immediately for diagnosis. Don't attempt to replace parts yourself—you might end up damaging the engine further, which would be even more costly. Using high-quality full synthetic oil can help mitigate the issue, but the root cause needs to be addressed by inspecting the PCV valve or replacing piston rings, with costs ranging from several thousand to over ten thousand. Don't delay, or you'll risk damaging the catalytic converter, doubling the repair costs! During regular maintenance, have the technician check seals and engine carbon buildup to prevent this issue from occurring.
