Audi A4

Audi timing chains are made to last a long time, usually around 100,000–150,000+ kms. Some can even reach 200,000 kms.

But they are not maintenance-free.

1. Some engines (especially older 2.0T and V8) may start wearing out earlier, around 80,000–100,000 miles
2. Regular oil changes (every 3,000–5,000 miles) are very important
3. Good oil care helps prevent the chain from stretching too early

1. If you experience any of these signs, you should have your timing chain checked:
2. Rattling Noise: Loud metallic rattling, especially on cold starts.
3. Engine Codes: OBDII codes such as P0016 or high cam-adaptation values (e.g., beyond -5 degrees).
4. Reduced Engine Performance: Misfires or low power. 

• Timing chain replacement is labor-intensive (often 30+ hours) as the engine and gearbox often need to be removed.