The timing belt (also known as the cam belt) is responsible for turning the camshaft at the right speed in relation to the crankshaft, and makes sure that valves in the engine cylinders open at the correct time.

It is critical to replace timing belts at the right intervals for your car, because if the belt snaps whilst in motion it can result in serious and irrevocable damage being done to the engine. Check your service manual for information on when your timing belt should be replaced.