Q7 Quattro V6-3.6L (BHK) (2007)
Heater Core: Service and Repair
Heater Core - Rear HVAC Unit Installed
Heater Core - Rear HVAC Unit Installed
Special tools and equipment
‹› Hose clamps up to dia. 25 mm (3094)
‹› Cooling system tester (V.A.G 1274) (hand pump and corresponding adapter)
Removing
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Switch off ignition.
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Release pressure in cooling circuit by opening cap on coolant expansion tank.
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Bring rear heating & A/C unit into service position => [ Rear Heating and A/C Unit, Service Position ] See: Heating and Air Conditioning/Service
and Repair/Removal and Replacement/Rear Heating and A/C Unit, Service Position
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Remove Left Rear Air Flap Motor (V239) => [ Left Rear Air Flap Motor ] See: Heating and Air Conditioning/Air Door/Air Door Actuator /
Motor/Service and Repair/Left Rear Air Flap Motor.
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Remove Right Rear Air Flap Motor (V240) => [ Right Rear Air Flap Motor ] See: Heating and Air Conditioning/Air Door/Air Door Actuator /
Motor/Service and Repair/Right Rear Air Flap Motor.
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Remove bolts - A - and remove upper cover - B -.
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Mark both coolant hoses - A - and - B - to rear heater core - C - (risk of interchange).