Caution: If the coolant is drained as part of a repair, it must be collected for later use. Do not drain the coolant down the drain as it is poisonous. Drop off at designated locations.
Drain
Open cap on expansion tank.
Caution: With a hot engine, apply a thick cloth before opening the cover to avoid burns from hot coolant or steam. Remove the cap only when the coolant temperature is below +90°C.
Place a clean vessel under the radiator.
ONS engines. Disconnect hose from water pump and drain coolant.
Remove the bottom hose on the radiator and drain the coolant.
Diesel engine: Unscrew the drain plug of the exhaust pipe holder from the cylinder block and drain the coolant.
Caution: Since the coolant contains substances that prevent freezing and corrosion, it must be collected for recycling.
Refueling
Gasoline engines: Put on» and on the water pump or radiator and secure with a clamp
Diesel engine. Insert the drain plug with sealant OPEL 1503166-90094714 into the cylinder block and tighten well.
Attention: The cooling system must always be filled with a mixture of water and antifreeze. Pay attention to the correct mixture ratio.
Fill the cooling system through the expansion tank.
Fill coolant to a level 1 cm above "cold" marks ("Kalt").
ONS engine
To remove air, unscrew the temperature sensor near the manifold. If coolant is escaping from the sensor, screw it in and, if necessary, seal it with sealant (OPEL №15042000). Before doing this, clean the thread of the temperature sensor.
OHV engine
Pour coolant into the expansion tank up to a level 1 cm higher "cold" marks, while bleeding from the cylinder head on the heater hose connection. To do this, loosen the heater hose clamp (arrow) on the cylinder head until coolant comes out. Tighten clamp.
Attention: It is not possible to bleed air from the cooling system through the temperature sensor.
Diesel engine
It is not necessary to remove air from the system. Pour coolant through the expansion tank.
Tighten the cap of the expansion tank until it stops.
Attention: The coolant level with a cold cooling system should be slightly above the mark "KALT" ("cold"). But when the engine is warm, the coolant level in the expansion tank rises, and when the engine cools, it decreases again.
Start the engine and check all coolant hose connections for leaks.
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