S5 Quattro Coupe V8-4.2L (CAUA) (2009)
Water Pump: Service and Repair
Coolant Pump
Coolant Pump
Removing
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Remove front coolant pipe. Refer to => [ Front Coolant Pipe ] See: Cooling System/Coolant Line/Hose/Service and Repair/Front Coolant Pipe.
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Remove Map Controlled Engine Cooling Thermostat (F265). Refer to => [ Map Controlled Engine Cooling Thermostat ] See: Cooling
System/Thermostat/Service and Repair/Map Controlled Engine Cooling Thermostat.
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Loosen coolant hose clamp - 1 -.
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Remove bolts - arrows -.
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Remove coolant pump housing forward, being careful of the pump input shaft.
‹› Coolant hose can only be removed with coolant pump removed.
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Remove bolts - arrows - and remove coolant pump - 2 - from the housing - 1 -.
Installing
‹› Tightening specifications. Refer to => [ Coolant Pump and Coolant Thermostat Assembly Overview ] See: Coolant Pump and Coolant Thermostat
Assembly Overview.
‹› Replace sealing rings and O-rings.