How many kilometers should the Audi timing chain be replaced?

[JaceDella]

Audi timing chain replacement is recommended at 180,000 to 200,000 kilometers. This is just a general replacement range, as each driver's habits vary, causing different levels of damage to the timing chain. However, for safety, it is advisable to replace it at 200,000 kilometers even if no issues are detected. The main function of the timing chain is to drive the engine's valve train, ensuring the intake and exhaust valves open and close at the correct times to allow normal air intake and exhaust in the engine cylinders. Timing chain lubrication: The lifespan of the timing chain is closely related to the engine oil used for regular maintenance. It provides more reliable transmission and better durability, requiring longer maintenance intervals. The timing chain does not directly rub against the sprockets; instead, it is lubricated by engine oil. If it were direct friction, the chain's lifespan would be much shorter, similar to other metal components in the engine. Therefore, it is essential to ensure regular engine oil changes and maintain high oil quality to prolong the timing chain's lifespan.