Astra L4-1.8L (2009)
5. Remove the coolant temperature sensor.
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Disconnect the wiring harness plug (2).
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Disconnect the retaining clamp (1).
Installation Procedure
1. Install the coolant temperature sensor.
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Lock the retaining clamp.
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Install the wiring harness plug.
2. Fill and bleed the cooling system. Refer to Cooling System Draining and Filling (See: Service and Repair).
3. Close the hood.