Timing Chain Tensioner 11318685091 For BMW E46 E90 E91 E92

A timing chain tensioner is a component in an engine's timing system that helps maintain proper tension on the timing chain. It is responsible for keeping the timing chain tight and preventing excessive slack or movement.

The timing chain tensioner plays a crucial role in maintaining proper tension and alignment of the timing chain in an engine. Regular inspection and timely replacement of worn or damaged tensioners are essential for preventing timing chain issues, ensuring accurate valve timing, and maintaining the overall performance and reliability of the engine.