DRYER BAG/DRYER CARTRIDGE, REMOVING AND INSTALLING, Vehicles with 2.0L, 3.0L and 3.2L: Removing
-- Turn off the ignition.
-- Discharge the refrigerant circuit. Refer to USING SERVICE STATION . For additional information, refer to OVERVIEW - REFRIGERANT CIRCUIT, NOT OPENING THE REFRIGERANT CIRCUIT, VEHICLES WITHOUT HIGH VOLTAGE SYSTEM and OVERVIEW - REFRIGERANT CIRCUIT, OPENING THE REFRIGERANT CIRCUIT, VEHICLES WITHOUT HIGH VOLTAGE SYSTEM (Refrigerant R134a, Servicing; Refrigerant Circuit, Using Service Station).
Depending on the allocation of the service connection to the refrigerant line and vehicle version, it may be necessary to remove the left additional reinforcement on the tower brace so that the service coupling of the A/C service station can be connected (for example, on the Audi Q5). Refer to OVERVIEW - SUSPENSION STRUT WITH MOUNTING BRACKET, SHOCK ABSORBER FORK, UPPER CONTROL ARM AND TOWER BRACE and USING SERVICE STATION . For additional information, refer to OVERVIEW - REFRIGERANT CIRCUIT, NOT OPENING THE REFRIGERANT CIRCUIT, VEHICLES WITHOUT HIGH VOLTAGE SYSTEM and OVERVIEW - REFRIGERANT CIRCUIT, OPENING THE REFRIGERANT CIRCUIT, VEHICLES WITHOUT HIGH VOLTAGE SYSTEM (Refrigerant R134a, Servicing; Refrigerant Circuit, Using A/C Service Station).
-- Remove the bolts (or clips) -1, 2, 3 and 5-. Refer to LOCK CARRIER COVER, REMOVING AND INSTALLING .
-- Lift the cover -4- on the lock carrier and disengage it on the radiator grille. Refer to LOCK CARRIER COVER, REMOVING AND INSTALLING .
-- Remove the bolts -arrows-.
-- Remove the air guide -1- on the intermediate flange -2- for the air filter housing.
-- Remove the front noise insulation. Refer to FRONT NOISE INSULATION .
Depending on the vehicle version, it may be necessary to remove the bumper cover in order to remove the front noise insulation (for example, on the Audi A4 allroad). Refer to Front Bumper .
-- Remove the front bumper cover end plate (depending on the vehicle version, for example, for the Audi Q5 it is currently not necessary). Refer to Front Bumper .
Vehicles with charge air cooler or engine oil cooler, installed under the condenser:
-- Remove the condenser. Refer to CONDENSER, REMOVING AND INSTALLING .
Vehicles, where it is not necessary to remove the condenser in order to remove the dryer cartridge -D- :
- Refrigerant must be extracted from refrigerant circuit before removing sealing cap -A-. If the plastic screw -A- is not removed within 10 minutes, pressure may form in the refrigerant circuit due to evaporation. Extract the refrigerant once more.
-- Check the pressure in the refrigerant circuit using, for example, a pressure gauge from an A/C service station. Refer to USING SERVICE STATION . For additional information, refer to OVERVIEW - REFRIGERANT CIRCUIT, NOT OPENING THE REFRIGERANT CIRCUIT, VEHICLES WITHOUT HIGH VOLTAGE SYSTEM and OVERVIEW - REFRIGERANT CIRCUIT, OPENING THE REFRIGERANT CIRCUIT, VEHICLES WITHOUT HIGH VOLTAGE SYSTEM (Refrigerant R134a Servicing; Refrigerant Circuit, Using Service Station).
Only remove the plastic screw -A- when the pressure in the refrigerant circuit is the same or less than the ambient pressure.
All:
-- Remove the plastic screw -A- (with filter -C-) (tightening specification: 2 Nm).
-- Remove the dryer cartridge -D- downward and out of the condenser.
Seal the open connection on the condenser with the plastic screw -A- to prevent dirt and moisture from getting in.