Is it necessary to change the engine oil when the Audi A4 prompts for an oil change?
2 Answers
Audi A4 prompts for an oil change should be done immediately. At the same time, it is necessary to inspect the car engine and other components to confirm the cause of the fault prompt and replace the engine oil. After eliminating the cause of the fault prompt and replacing the car's engine oil, the oil change prompt will automatically disappear. The following are the related functions of engine oil: Alleviating friction and high temperature: A sufficiently thick oil film separates the surfaces of relatively sliding parts, thereby reducing wear. Sealing effect: Engine oil can form a sealing ring between the piston ring and the piston, reducing gas leakage and preventing external pollutants from entering. Anti-rust effect: Lubricating oil can adhere to the surface of parts, preventing contact with water, air, acidic substances, and harmful gases. Buffering effect: When the pressure in the engine cylinder port rises sharply, suddenly increasing the load on the piston, piston skirt, connecting rod, and crankshaft bearings, this load is transmitted and lubricated through the bearings, providing a buffering effect on the impact load.
I've been repairing Audi vehicles for over a decade. The oil change reminder in the A4 is automatically calculated by the system based on engine operating hours and mileage. When the alert appears, it indicates the engine oil performance has significantly degraded, especially for turbocharged engines. While pushing it for a few hundred kilometers might not cause immediate breakdown, you'll clearly notice increased engine noise during acceleration and higher fuel consumption. More seriously, prolonged delays will accelerate internal wear, particularly in precision components like camshafts and piston rings. Last time, an owner delayed for a month before coming in, and ended up paying triple the repair cost for engine component replacements. So I recommend not fighting against the reminder – change it early for peace of mind, and have your technician check other fluid conditions while you're at it.
