Receiver Dryer: Service and Repair
Fluid Reservoir with Dryer
• Under certain conditions, fluid reservoir with dryer is no longer to be replaced after each time the refrigerant circuit is opened. In ELSA, see Heating/Ventilation/Air Conditioning; Air Conditioning with R134a Refrigerant; Technical Data; Replacing Components.
Special tools, testers and auxiliary items required
• Torque wrench (V.A.G 1331/) (5 to 50 Nm)
• A/C service station (VAS 6007A) or succeeding model.
Removing
• Observe notes => [ Refrigerant Circuit ] Refrigerant Circuit.
• Refrigerant must be extracted before hand using e.g. A/C service station (VAS 6007A).
• The previously used service stations can still be used => catalog V.A.G tools.
• To prevent the ingress of dampness all components of the refrigerant circuit which have been opened must be sealed with suitable plugs.
- Extract refrigerant e.g. using A/C service station (VAS 6007A), only then open the refrigerant circuit.
- Bring the lock carrier into service position Radiator Support
- Remove the radiator mounting bolts (7 Nm) - arrows -.
- Hang cooler on workshop crane (V.A.G 1202/A) and engine sling (VAS 2024A) using workshop equipment (cable ties or welding wire) and unhook cooler from lock carrier, coolant hoses and refrigerant lines remain connected.
- Unscrew mounting bolt - 2 - and remove retaining clip.
CAUTION!
There is a danger of ice-up.
Refrigerant leaks out if refrigerant circuit is not discharged.
Refrigerant must be extracted before opening refrigerant circuit. If refrigerant circuit is not opened within 10 minutes of extraction, pressure may form in refrigerant circuit due to evaporation. Extract refrigerant once more.
- Remove bolts - 1 - and pull fluid reservoir with dryer upward and out.
• Depending on condenser, bolt - 1 - may also only be installed once.
Installing
Install in reverse order of removal.
• First tighten bolt(s) - 1 - to 4.2 Nm ± 0.7 Nm and then mounting bolt - 2 -.
• When installing cooler, ensure that sealing strips are seated correctly on cooler.