Here's why:
* Interference vs. Non-Interference: In an interference engine, the valves and pistons can collide if the timing belt breaks. This can cause significant damage to the engine. In a non-interference engine, the valves and pistons are designed to avoid contact even if the timing belt breaks.
* Alfa Romeo 156 V6: The V6 engine in the Alfa Romeo 156 uses a timing belt, and it's an interference engine. This means that if the timing belt breaks, the valves and pistons will collide, causing serious damage.
Therefore, it's crucial to maintain the timing belt and replace it at the recommended intervals to prevent engine damage.
