Vauxhall Workshop Service and Repair Manuals > Astra J > Engine | Engine mechanics - 1.6L (LDE, LLU), 1.8L (2H0) | Diagnostic Information and Procedures | Miscellaneous

Drive Belt Tensioner Diagnosis

Diagnosis consists of a function check on the automatic belt tensioner and a visual check on the belt and the components linked to the belt.

•	Apply tension to the belt tensioner via the cast projection (1) in the direction of the arrow, counterclockwise, and allow to slide back slowly.

•	The tensioner must slide back to the initial position.