All about Ford Mondeo

Air conditioning system components - removal and refitting
Cooling, heating, and air conditioning systems / Air conditioning system components - removal and refitting


Warning: The air conditioning system is under high pressure.

Do not loosen any fittings or remove any components until after the system has been discharged. Air conditioning refrigerant should be properly discharged into an approved type of container, at a dealer service department or an automotive air conditioning repair facility capable of handling R134a refrigerant. Cap or plug the pipe lines as soon as they are disconnected, to prevent the entry of moisture. Always wear eye protection when disconnecting air conditioning system fittings.

Note: This Section refers to the components of the air conditioning system itself - refer to Sections 9 and 10 for details of components common to the heating/ventilation system.

Condenser
1 Have the refrigerant discharged at a dealer service department or an automotive air conditioning repair facility.

2 Disconnect the battery negative (earth) lead (see Chapter 5, Section 1).

3 Remove the radiator undershield (see Chapter 1).

4 Using the Ford service tool 34-001, disconnect the refrigerant lines from the condenser. Immediately cap the open fittings, to prevent the entry of dirt and moisture.

5 Unbolt the condenser (see illustration 7.5) and lift it out of the vehicle. Store it upright, to prevent oil loss.

6 Refitting is the reverse of removal.

7 If a new condenser was installed, add 20 cc of refrigerant oil to the system.

8 Have the system evacuated, charged and leak-tested by the specialist who discharged it.

Evaporator
9 The evaporator is mounted with the heater matrix. Apart from the need to have the refrigerant discharged, and to use Ford service tools 34-001 and 34-003 to disconnect the lines, the procedure is as described in Section 9 of this Chapter.

10 On reassembly, if a new evaporator was installed, add 20 cc of refrigerant oil to the system.

11 Have the system evacuated, charged and leak-tested by the specialist who discharged it.

Compressor
12 Have the refrigerant discharged at a dealer service department or an automotive air conditioning repair facility.

13 Disconnect the battery negative (earth) lead (see Chapter 5, Section 1).

14 Remove the radiator undershield (see Chapter 1).

15 Remove the auxiliary drivebelt (see Chapter 1).

16 Unbolt the compressor from the cylinder block/crankcase, press it to one side, and unscrew the clamping bolt to disconnect the refrigerant lines. Plug the line connections, swing the compressor upright, unplug its electrical connector, then withdraw the compressor from the vehicle. Note: Keep the compressor level during handling and storage.

If the compressor has seized, or if you find metal particles in the refrigerant lines, the system must be flushed out by an air conditioning technician, and the accumulator/dehydrator must be renewed.

17 Prior to installation, turn the compressor clutch centre six times, to disperse any oil that has collected in the head.

18 Refit the compressor in the reverse order of removal; renew all seals disturbed.

19 If you are installing a new compressor, refer to the compressor manufacturers instructions for adding refrigerant oil to the system.

20 Have the system evacuated, charged and leak-tested by the specialist that discharged it.

Accumulator/dehydrator
21 Have the refrigerant discharged at a dealer service department or an automotive air conditioning repair facility.

22 Disconnect the battery negative (earth) lead (see Chapter 5, Section 1).

23 The accumulator/dehydrator, which acts as a reservoir and filter for the refrigerant, is located in the left-hand front corner of the engine compartment. Using the Ford service tool 34-003, disconnect the refrigerant line next to the accumulator/dehydrator from the compressor. Immediately cap the open fittings, to prevent the entry of dirt and moisture, then unplug the pressure-cycling switch electrical connector (see illustration).

12.23 Unplug pressure-cycling switch electrical connector (arrowed)
12.23 Unplug pressure-cycling switch electrical connector (arrowed)

24 Remove the radiator undershield (see Chapter 1).

25 Unbolt the accumulator/dehydrator from the front suspension subframe.

26 Using the Ford service tool 34-003, disconnect the lower refrigerant line from the accumulator/dehydrator. It may be necessary to unscrew the pressure-cycling switch to allow the use of the tool. Immediately cap the open fittings, to prevent the entry of dirt and moisture.

27 Withdraw the accumulator/dehydrator.

28 Refit the accumulator/dehydrator in the reverse order of removal; renew all seals disturbed.

29 If you are installing a new accumulator/ dehydrator, refer to the manufacturers instructions for adding refrigerant oil to the system.

30 Have the system evacuated, charged and leak-tested by the specialist that discharged it.

Pressure-cycling and pressureregulating switches
31 Have the refrigerant discharged at a dealer service department or an automotive air conditioning repair facility.

32 Disconnect the battery negative (earth) lead (see Chapter 5, Section 1).

33 Unplug the switch electrical connector, and unscrew it (see illustration).

12.33 Unplug pressure-regulating switch electrical connector (arrowed)
12.33 Unplug pressure-regulating switch electrical connector (arrowed)

34 Refitting is the reverse of the removal procedure; there is no need to top-up the refrigerant oil.

35 Have the system evacuated, charged and leak-tested by the specialist that discharged it.


2018 www.fordmon.ru. All Rights Reserved.