Engine at operating temperature (oil temperature ≥ 80 ° C). Check coolant level, correct if necessary - see operation "Cooling System, Top Up and Bleed".
 Install, Connect Attach Adapter KM-471 (2) and gauge (1) to coolant compensation tank (observe manufacturer's instructions). Apply approx. 100 kPa (1 bar/14.5 psi) to cooling system. Notice: Checking equipment is available via "Opel/Vauxhall workshop equipment" catalogue.
 Inspect Cooling System, Check for Leaks
 Remove, Disconnect Remove tester and Adapter KM-471 from coolant compensation tank and close coolant compensation tank. | 
