Dryer Bag/Dryer Cartridge, Removing And Installing, Except RS Models: Removing
-- Turn off the ignition.
-- Discharge the refrigerant circuit. Refer to REFRIGERANT CIRCUIT .
Depending on the allocation of the service connection to the refrigerant line and vehicle version, it may be necessary to remove the left auxiliary reinforcement on the tower brace so that the A/C service station service coupling can be connected (for example, on the Audi Q5). Refer to SUSPENSION STRUT AND UPPER CONTROL ARM and REFRIGERANT CIRCUIT .
-- Remove the bolts (or clips) -1, 2, 3 and 5-. Refer to LOCK CARRIER .
-- Lift the cover -4- on the lock carrier and disengage it on the radiator grille. Refer to LOCK CARRIER .
-- 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 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 refrigerant circuit pressure with, for example, the pressure gauge on an A/C service station. Refer to REFRIGERANT CIRCUIT .
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.