Thermostat (Replace thermostat): Repair Instructions

Make

Vauxhall

Model

Astra H

Section

Thermostat › Repair Instructions › Replace thermostat

Engine and Engine AggregatesReplace thermostat

Replace thermostat   Remove 1.   Remove engine cover. 2.   Raise vehicle by its full height 3.   Place collecting basin underneath. Warning:   Open cooling system only when the engine is cool 4.   Unscrew coolant pump coolant drain bolt (arrow) 5.   Lower vehicle by its full height 6.   Drain coolant •   Unscrew closure cap of coolant expansion tank Note:   Opening the coolant compensation tank accelerates coolant drainage 7.   Detach lower coolant hose (1) •   From thermostat 8.   Remove thermostat •   Unscrew 2x bolts (2) •   Remove seal ring 9.   Clean sealing surfaces.   Install 10.   Install thermostat •   Replace sealing ring Note:   Coat seal ring lightly with silicone grease (white) •   Tighten 2x bolt 8 Nm 11.   Attach lower coolant hose 12.   Raise vehicle by its full height 13.   Tighten coolant pump coolant drain bolt 20 Nm •   Insert bolt with commercially available Teflon strip 14.   Lower vehicle by its full height 15.   Attach engine cover 16.   Fill and bleed cooling system

09 Engine