Opel Frontera UE. Manual - part 23

1A–64

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Electronic Thermostat, Evaporator Core and/or Expansion Valve

Disassembled View

874RX011

EndOFCallout

Removal

1. Disconnect the battery ground cable.

2. Discharge and recover refrigerant.

• Refer to Refrigerant Recovery in this section.

3. Remove evaporator assembly.

• Refer to Evaporator Assembly in this section.

4. Remove the electronic thermostat sensor fixing clip.

Pull the sensor from the evaporator assembly.

5. Remove clip.

6. Remove attaching screw.

7. Remove upper case.

8. Remove lower case.

• Slit the case parting face with a knife since the

lining is separated when removing the evaporator.

874RW034

Legend

(1) Lining
(2) Upper Case
(3) Electronic Thermostat
(4) Evaporator Core
(5) Lining: Case

(6) Attaching Screw
(7) Clip
(8) Lower Case
(9) Evaporator Assembly

(10) O-ring
(11) Expansion Valve

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–65

• Lift to remove the upper case.

874RX013

9. Remove evaporator core.

874RX012

10. Remove expansion valve.

• Tear off the insulator carefully.

• Remove the sensor fixing clip.

• Use a back-up wrench when disconnecting all

refrigerant pipes.

Installation

To install, follow the removal steps in the reverse order,
noting the following points:

1. The sensor is installed on the core with the clip.

2. The sensor must not interfere with the evaporator

core.

3. When installing the new evaporator core, install the

thermo sensor to the evaporator core specified
position with the clip in the illustration.   

874RX014

EndOFCallout

4. O-rings cannot be reused. Always replace with new

ones.

5. Be sure to apply new compressor oil to the O-rings

when connecting lines.

6. Be sure to install the sensor and the insulator on the

place where they were before.

7. To install a new evaporator core, add 50cc (1.7 fl.

oz.) of new compressor oil to the new core.

8. Tighten the refrigerant lines to the specified torque.

Refer to Main Data and Specifications for Torque
Specifications in this section.       

9. Apply an adhesive to the parting face of the lining

when assembling the evaporator assembly.

Legend

(1) Evaporator Core
(2) Thermo Sensor
(3) Lower Case
(4) Upper Case

1A–66

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

Refrigerant Line

Refrigerant Line and Associated Parts

852RX009

EndOFCallout

Removal

1. Disconnect the battery ground cable.

2. Discharge and recover refrigerant.

• Refer to Refrigerant Recovery in this section.

3. Remove radiator grille.

4. Remove clip and clamp.

5. Disconnect liquid line (High-pressure pipe).

6. Disconnect suction line (Low-pressure pipe) using a

back-up wrench.

7. Disconnect suction line (Low-pressure hose) using

a back-up wrench.

8. Disconnect discharge line (High-pressure hose)

using a back-up wrench.

• Use a backup wrench when disconnecting and

reconnecting the refrigerant lines.

• When removing the refrigerant line connecting

part, the connecting part should immediately be

Legend

(1) Clip and Clamp
(2) Liquid Line (High-Pressure Pipe)

(3) Discharge Line (High-Pressure Hose)
(4) Radiator Grille
(5) Suction Line (Low-Pressure Pipe)

HEATING, VENTILATION AND AIR CONDITIONING (HVAC)

1A–67

plugged or capped to prevent foreign matter from
being mixed into the line.

Installation

To install, follow the removal steps in the reverse order,
noting the following point:

1. O-rings cannot be reused. Always replace with new

ones. 

2. Be sure to apply new compressor oil to the O-rings

when connecting lines.   

3. Tighten the refrigerant line to the specified torque.

Refer to Main Data and Specifications for Torque
Specifications in this section.