Removal and installation of other components of the refrigeration unit (Skoda Superb B6)

Note: The location of the refrigeration unit components is shown in Figure 8.2. A description of replacing the evaporator temperature sensor "G263" is given in Section 14.

Note: On models with a Denso condenser, the receiver and drier are part of the condenser and cannot be replaced separately. On models with Showa and Fujikoki parts, the receiver is replaced together with the drier cartridge. On models with Modine parts, the receiver is a part of the condenser, and the drier can be replaced separately. The receiver-drier needs to be replaced only after: the compressor has jammed, the refrigerant circuit has been open for an indefinite period of time (for example, with long-term coloring) or the coolant circuit was bled.

1. If there is a lid (3 on the accompanying illustration) expansion valve to remove it, disconnect the coolant lines from the heater radiator, loosen the nut (1) and remove the clamps (2). When installing, tighten the nut with a force of 6 Nm.

Removal and installation the expansion valve

2. On some engines, it may be necessary to remove the top engine cover to gain access to the expansion valve (see Chapter 2), turbocharger inlet hose, diesel particulate filter cover and air cleaner inlet hose (see Chapter 4).

3. Drain the refrigerant.

4. If present, remove the expansion valve cap (see paragraph 1).

5. Remove the bolts (1 on the accompanying illustration) and separate the refrigerant lines from the expansion valve (2). Unscrew the bolts (9) and remove the expansion valve from the thermal insulation (6). Use new refrigerant line sealing rings when installing.

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Capacitor

6. Drain the refrigerant from the refrigeration unit.

7. Remove the hood lock holder (see Chapter 11).

8. Disconnect the refrigerant lines from the condenser (see illustration 8.2) and seal them.

9. Unscrew 4 bolts and remove the condenser from the radiator (1 on the accompanying illustration).





10. Installation is carried out in reverse order.

Replacing the desiccant cartridge ("Showa" and "Fujikoki")

11. Drain the refrigerant from the refrigeration unit.

12. Remove the hood lock holder (see Chapter 11).

13. Without disconnecting the coolant hoses, secure the condenser with wire.

14. Unscrew the bolt (1 on the accompanying illustration) and remove the clamp (2). Then unscrew the bolts (5) and pull the receiver with the dryer (3) upward.



15. Installation is carried out in the reverse order. Use new sealing rings (1 in illustration 18.14). First tighten the bolts (5) and then the bolt (1) to 5 Nm.

Replacing the dehydrator cartridge (condenser "Modine")

Note: It is not necessary to replace the cartridge every time the refrigerant circuit is depressurized for a short time if the vehicle is less than 5 years old.

16. Remove the front bumper cover (see Chapter 11).

17. Remove the plug (1 on the accompanying illustration) and drain the refrigerant from the refrigeration unit.



18. Press the sealing cap (1 on the accompanying illustration) into the receiver, remove the retaining ring (arrow) and pull the sealing cover out of the condenser (2) using the M12 bolt.



19. Remove the desiccant bag from the condenser using a suitable tool (see accompanying illustration).





20. Bend the end of a 2mm welding electrode 380mm long into a hook with a diameter of 6mm (1 on the accompanying illustration) and remove the cartridge (2) from the condenser.



21. Insert the new cartridge into the condenser, and then insert the desiccant bag into the condenser.

22. Further installation is carried out in reverse order.

Evaporator

23. Remove the climate control system housing and disassemble it, removing the evaporator from its lower casing (see Section 15).

24. Before installing the evaporator, check the drainage hose for leaks and clean it if necessary.

25. Make sure the seal is (F on the accompanying illustration) put on around the entire perimeter. Put the holder (C) with the seal (B) on the connections (D and E) and insert the evaporator (A) into its lower casing, as shown in the illustration. In this case, as well as when installing the upper casing, make sure not to damage the seal (F). After connecting the casings, check that the casings are positioned correctly.