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Cooling System, Charge and Bleed
Inspect
| 1. |
Always use Opel approved antifreeze and ensure that the
concentration is 50% water and 50% antifreeze. The antifreeze does
not just protect the entire cooling system from freezing, but also
protects all coolant-flushed parts from rust-corrosion/calcium
deposits. It is therefore important to add antifreeze, even in
tropical countries.
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| 2. |
The water quality also plays an important role in addition to
the mix ratio. Water of drinkable quality usually meets these
requirements. The quality of purified sea water is inadequate!
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| 3. |
Damage may also be caused to the engine if unauthorised
anti-freeze agent is used!
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| 4. |
If radiator, cylinder head or cylinder head gasket have been
replaced the old coolant must not be re-used.
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Important: Vehicles with air
conditioning: switch air conditioning off and set to ECO mode with
ECC
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| 5. |
Open cooling system
Warning: Cooling system is under
pressure
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| • |
Unscrew coolant expansion tank cover
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| 6. |
Fill with coolant up to lower venting line (1) at coolant
expansion tank
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| 7. |
Seal off cooling system
| • |
Screw in coolant expansion tank cover
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| 8. |
Start engine and allow to warm up
| • |
Allow engine to warm up at idling speed of up to 2500 rpm until
first radiator fan setting switches on
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| 9. |
Vent cooling system
| • |
Allow engine to run for approximately 2 minutes at 2000 to 2500
rpm
Note: The air in the
cooling system is removed via the venting lines
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| 10. |
Switch engine off and allow to cool
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| 11. |
Check coolant level and also top up coolant to "COLD" mark
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