6-Cylinder Engine

Dryer Cartridge

• There are different condenser versions and the dryer cartridge installed inside them. Pay attention to the correct allocation, refer to => [ Condenser, Checking Version ] Testing and Inspection and to the Parts Catalog.

• The reservoir may be attached to or integrated in the condenser, depending on the version of the condenser. Replace an attached reservoir. Refer to => [ Fluid Reservoir ] Fluid Reservoir.

Removing

- Turn off the ignition.

- Drain the refrigerant circuit.

- Remove the bolts (or clips) - 1, 2, 3 and 5 -.






- Remove the cover - 4 - from the lock carrier and disengage the radiator grille.

- Remove the bolts - arrows -.






- Remove the front engine oil cooler.

- Remove the left and right air guide - 1 - from the intermediate flange - 2 - on the air filter housing.






• 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 refrigerant once more.

- Check the refrigerant circuit pressure using, for example, a pressure gauge from the A/C Service Station.

Only remove the plastic screw - A - when the pressure in the refrigerant circuit is the same or less than the ambient pressure.

- Remove the plastic screw - A - (with filter - C -).






- Remove the dryer cartridge - D - downward and out of the condenser.

- Seal the open reservoir with the plastic screw - A - to prevent dirt and moisture from getting in.

Installing

Installation is done is reverse order, observe the following:

• Using the opening, inspect the reservoir on the condenser for dirt and damage on the threaded- and sealing surfaces.

• 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 O-rings ] Refrigerant Circuit O-Rings.

• 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 - into the condenser reservoir.

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

- Discharge and fill the refrigerant circuit.

- Operate the A/C system after filling the refrigerant circuit. Refer to => [ A/C System, Operating after Filling Refrigerant Circuit ] A/C System, Operating After Filling Refrigerant Circuit.

- Install the remaining removed components.

- Switch on the ignition.

- Check the DTC memory and erase any displayed entries using the Vehicle diagnostic tester in "Guided Fault Finding".