Precursors to Timing Chain Failure in the Passat?

[DelGrant]

Precursors to timing chain failure in the Passat include: abnormal engine noise, weak starting, increased fuel consumption, increased oil consumption, severe exhaust emissions pollution, sluggish acceleration response, illuminated yellow engine warning light, and insufficient power. Below is some information about the engine timing chain: 1. The engine timing chain drives the engine's valve train, ensuring the intake and exhaust valves open and close at the proper times to allow normal cylinder intake and exhaust. 2. In some models, such as the Volkswagen Jetta (EFI), Bora, and Audi, the timing chain also drives the water pump.