RS 4 Quattro Cabriolet V8-4.2L (BNS) (2008)
Thermostat: Service and Repair
Coolant Thermostat With Housing
Coolant Thermostat with Housing
Removing
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Drain the coolant. Refer to => [ Cooling System, Draining and Filling ] See: Service and Repair/Procedures.
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Remove coolant hose - 2 - at bottom of coolant thermostat housing and let rest of coolant drain.
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Remove bolts - arrows -.
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Remove housing with the thermostat and remove the upper coolant hose - 1 - on the coolant thermostat housing.
Installing
Installation is in reverse order of removal, note the following:
‹› Replace seals and O-rings.
‹› Secure all hose connections with hose clamps appropriate for the model.
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Fill with coolant => [ Filling ] See: Service and Repair/Procedures.
Tightening Specifications