Car engine cooling system Opel Omega A

Cooling system specifications
For later model years, see the Appendix at the end of the Manual ( Section 13 ).

General description
The cooling system includes: a downdraft radiator, a belt-driven heat-viscous cooling fan, a toothed belt, a water pump, a thermostat, and an expansion tank....

Routine maintenance
1. Perform the following procedures at the intervals given in Section " Maintenance " at the beginning of this Guide. Coolant level control 2. With the engine...

Cooling system — draining fluid
1. Unscrew the filler cap from the expansion tank or radiator. If the engine is hot, place a thick cloth on the cap before removing it. 2. Place a suitable...

Cooling system — flushing
1. Flushing is not required if the coolant has been replaced periodically or if plain water has been used. In any case, if the coolant appears rusty and dark,...

Cooling system — filling
1. Connect the hoses and tighten the clamps. Install and tighten the cylinder block drain plug. 2. On carbureted engines, disconnect the warm air duct to gain...

Antifreeze mixture — general description
Warning: Antifreeze mixture is poisonous. Keep away from children and pets. Wash stains on upholstery and clothing with water. 1. The antifreeze/water mixture...

Radiator — removal and installation
1. Drain the cooling system as described in Chapter 3 . Disconnect the upper hose (photo). 2. Pull the upper clips out and release the cooling fan shroud from...

Radiator — inspection and repair
1. If the radiator was removed due to a suspected blockage, flush it as described in Chapter 4 . 2. Clean the radiator fins from dirt and other foreign objects...

Thermostat — removal and installation
1. Drain the cooling system as described in Chapter 3 . 2. On carbureted engines, disconnect the warm air duct to gain access to the thermostat housing. 3....

Thermostat — Test
1. A rough check of the thermostat can be done by lowering it on a piece of string into a pan filled with water. Bring the water to a boil and check if the...

Thermally Viscous Cooling Fan — Removal and Installation
1. On carbureted engines, disconnect the warm air duct and move it to the side. 2. If necessary, you can remove the cooling fan shroud. Pull out the upper...

Water pump — removal and installation
1. Remove the thermal-viscous cooling fan ( Chapter 11 ) and the generator/fan drive belt ( Chapter 13 ). 2. Remove the radiator ( Chapter 7 ). 3. Remove the...

Generator/fan drive belt — replacement and adjustment
1. Where used, remove the power steering pump drive belt as described in Section 10 . 2. Disconnect the warm air duct (carburetor engines) or throttle body air...

Expansion tank — removal and installation
1. Drain the cooling system as described in Chapter 3 . 2. Remove the filler cap. 3. Loosen the clamp and disconnect the radiator degasser hose. 4. Unfasten...

Temperature gauge sensor — removal and installation
1. The temperature gauge sensor is located on the thermostat housing. Allow the engine to cool before removing the unit. 2. Remove the filler cap from the...

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