Description of the repair of the engine cooling system, as well as the interior ventilation and heating system.
General information and device The main components of an engine liquid cooling system are a water pump and a thermostat. The coolant must provide a cooling and anti-corrosion effect all year...
Thermostat — removal and installation As the engine temperature rises, the thermostat opens a large coolant circuit. If, due to a malfunction, the thermostat does not work, the engine will...
Radiator — removal and installation Removing Attention! On vehicles with a 2.2 liter petrol engine, automatic transmission and trailer tow hitch, a transmission oil cooler has been installed...
Radiator fan thermal switch — check Cars with a gasoline engine The thermal switch turns on the electric radiator fan when the coolant is heated to a certain temperature. The switch should be...
Radiator fan motor — removal and installation Removing 1. Disconnect the wire terminal «masses» (-) from the battery. Vehicles with V6 engine 2. Remove the battery and upper radiator shroud. 3. Remove the...
Viscous coupling — removal and installation Vehicles with a 2.5L diesel engine (X25DT) The viscous fan clutch should be replaced if there is rust on its hub. Because of it, the fan either stops or...
Water pump — removal and installation To dismantle the water pump, the toothed belt must be removed. On a V6 engine, this is a rather complicated procedure requiring the use of a special Opel tool....
Heating and air conditioning system General information and device The air intake for interior heating occurs through the air intake grille with an anti-dust filter, located under the windshield....
Heater switch block — removal and installation Attention! OPEL OMEGA cars manufactured since 2000 are equipped with air conditioning with automatic control as standard. Removing 1. Disconnect the wire...
Additional fan resistances — removal and installation Removing 1. Disconnect the wire terminal from the battery «masses» (-) and remove the storage box. 2. Disconnect and remove the air duct. 3. Disconnect the...
Interior blower motor — removal and installation Removing 1. Disconnect the wire terminal from the battery «masses» (-) and remove the storage box. 2. Disconnect and remove air duct 1 (see illustration). 3....
Air conditioner The air conditioning system consists of a compressor, a radiator, a throttle valve, an evaporator, a refrigerant tank and pressure pipes (see illustration...