Astra L4-1.8L (2009)
9. Remove the battery support (1).
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Disconnect the 2 coolant hoses (3).
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Remove the wiring harness (4) from the battery support.
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Remove the 2 cable ties.
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Remove the 3 bolts (2).
10. Remove the upper radiator hose from the coolant flange.
Release the clamp.
11. Remove the coolant pipe (1) between the thermostat housing and the oil filter adapter.
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Remove the 2 bolts (2).
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Draw out of the oil filter adapter.