Dryer Bag/Dryer Cartridge, Removing And Installing, Except RS Models: Installing

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Installation is done is reverse order, observe the following:

Check the receiver/dryer on the condenser above the opening -E- for dirt.
Make sure the receiver/dryer thread -E- on the condenser is not dirty or damaged.
Replace the plastic screw -A- (with filter -C-), the dryer cartridge -D- and the O-ring -B-.
Coat the O-ring -C- lightly with refrigerant oil before installing. Refer to REFRIGERANT CIRCUIT SEALS .
Make sure the O-ring -B- fits correctly inside the groove on the plastic screw -A-.
Keep the dryer cartridge -D- sealed in its air-tight package as long as possible. Open the package just before installing the dryer cartridge into the condenser. The dryer cartridge absorbs moisture in a very short time and become unusable.

-- Remove the dryer cartridge -D- from its original package.

-- Insert the dryer cartridge -D- in the condenser receiver/dryer.

-- Install the plastic screw -A- (with filter -C-) (tightening specification: 2 Nm).

-- Install the condenser. Refer to CONDENSER, REMOVING AND INSTALLING .

-- Install the front bumper cover end plate, etc. (depending on the vehicle version). Refer to FRONT BUMPER

-- Install the front noise insulation. Refer to NOISE INSULATION .

NOTE:

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 .

-- Evacuate and charge the refrigerant circuit. Refer to REFRIGERANT CIRCUIT- R134a or WORKING WITH A/C SERVICE STATION .

-- Install remaining components.

-- Turn on the ignition.

-- Check the DTC memory for the Climatronic Control Module -- display and control head and erase any displayed malfunctions, if necessary using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.

-- Operate the A/C system after filling the refrigerant circuit. Refer to A/C SYSTEM, STARTING OPERATION AFTER FILLING REFRIGERANT CIRCUIT .

NOTE:

Read the information for starting the A/C system after filling. Refer to REFRIGERANT CIRCUIT- R134a or WORKING WITH A/C SERVICE STATION . After recharging, before activating the A/C system.