Opel Astra H 1.8 Luk Clutch Kit 3Pc 140 08/05- Estate Z18Xer A18Xer Part. The SAC uses a load sensor (sensor diaphragm spring) to activate its wear adjustment function by turning a ramped ring. This wear adjusting mechanism reduces the required actuation forces while increasing clutch life by around 1.5 times. In addition, actuation forces […]