How often should the timing chain of the Peugeot 1.6T engine be replaced?

[SanAlyssa]

The timing chain of the Peugeot 1.6T engine does not require replacement and is designed for lifetime maintenance-free operation. Below are the specific details about the timing chain: 1. Function: The engine timing chain drives the valve train mechanism, ensuring that the engine's intake and exhaust valves open and close at the correct times to allow normal air intake and exhaust in the cylinders. In some models, such as the Volkswagen Jetta, Bora, and Audi, it also drives the water pump. 2. Effects of Timing Chain Stretching: Unlike timing belts, timing chains are less prone to breakage or deformation. However, being made of metal, they can stretch, wear, and develop increased gaps under high-speed engine operation. If the timing chain stretches due to increased gaps, it can lead to inaccurate timing and increased noise. If the timing chain wears or stretches due to aging, causing timing misalignment, the valve stems may bend, piston tops may dent, and in severe cases, the cylinder head could be damaged, rendering the engine inoperable.