Q7 Quattro V8-4.2L (BAR) (2008)
Receiver Dryer: Service and Repair
Dryer Cartridge
Dryer Cartridge
‹› Dryer cartridge is installed in condenser fluid reservoir and can currently be replaced without removing the condenser.
‹› The receiver collects the fluid drops and then directs them in an uninterrupted stream to the expansion valve. Moisture which has entered the
refrigerant circuit during repairs will be collected by the dryer cartridge in the receiver.
‹› In the year 2006, condensers are to be introduced as a running change on which the fluid reservoir with dryer cartridge is fastened to the condenser
(similar as on the Audi A3 as of model year 2004. Refer to => Heating and Air Conditioning See: . Audi A3 2004>). For the time being, these
fluid reservoirs can be replaced only when condenser has been removed. Replace O-ring seals - A - and - B -, version, on fluid reservoir and
tighten bolts in connection area to 10 Nm.
Removing
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Discharge A/C refrigerant system:
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Remove cover above water cooler (top radiator cover). Refer to => Radiator Support See: Body and Frame/Lock Carrier.
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Unscrew cover - A - and remove it with seal - B -.