Climate Units - Removal, Replacement and Installation: Overview Volvo XC90 I

PREPARATIONS (OPERATIONS COMMON TO ALL METHODS)

Note. Read the instructions covering slow and fast leaks. See OIL AIR CONDITIONING (A/C) SYSTEM, FILLING.

Always plug the pipes and connections when working on the climate control system.

Drain the refrigerant from the air conditioning (A/C) system. See REFRIGERANT, DRAINING.

Remove

1. the battery lead. See «BATTERY, DISCONNECTING»(ref-476746-S00156360512012060500000)
2. the rear side panel. See «SIDE PANEL CARGO COMPARTMENT, REPLACEMENT»(ref-476738-S04563130692012060500000).

Scheme 79

Remove

1. the engine stabilizer brace in the engine compartment
2. the servo oil reservoir. Place it on top of the engine
3. the hose from the expansion tank using cutting nippers or Oetiker pincers
4. the connector for the level sensor
5. the connector at the cable duct
6. the expansion tank and place it on top of the engine
7. the outlet air pipe to the firewall from the control module box.

Open the clamp for the refrigerant pipe on the side member.

Remove

1. the plastic nut from the drainage duct to the gutter in the right-hand corner
2. the drainage channel.

1. the heat shield for the expansion valve
2. the screw and the pipe holder that secure the refrigerant pipes to the expansion valve.

Scheme 80

Remove

1. the pipes from the expansion valve. Pull the pipe holder backwards
2. the pipe lock from the pipe holder. Remove the lock and the holder.

To replace the pipes for the expansion valve - junction block on the side member, see PIPES EXPANSION VALVE - JUNCTION POINT SIDE MEMBER, REPLACE.

To replace the expansion valve in the receiver drier, see PIPES RECEIVER DRIER - EXPANSION VALVE, REPLACING.

To replace the junction block in the cowl, rear expansion valve, see PIPE/HOSE JUNCTION BLOCK COWL - REAR EXPANSION VALVE, REPLACING.

FINISHING WORK (OPERATIONS COMMON TO ALL METHODS)

Install the battery lead. See BATTERY, DISCONNECTING.

Vacuum pump the air conditioning (A/C) system. See VACUUM PUMPING.

Fill the air conditioning (A/C) system with refrigerant. See REFRIGERANT, FILLING.

Leak trace the air conditioning (A/C) system. See LEAK TRACING, FLUORESCENT TRACING AGENT / UV LAMP or LEAK TRACING, FLUORESCENT TRACING AGENT / UV LAMP.

Install the rear side panel. See SIDE PANEL CARGO COMPARTMENT, REPLACEMENT.

Scheme 81

Remove

1. the hose / pipe from the member to the compressor
2. the pipe from the receiver drier to the expansion valve from the mounting at the junction block
3. the pipe from the member at the pipe coupling.

Detach the pipe at the expansion valve.

Position the front section of the pipe above the front cover plate.

Pull the rear edge of the pipe up and out. Remove the pipe.

Scheme 82

See also:
• REFRIGERANT, SAFETY REGULATIONS
• CASING BUMPER FRONT, REPLACING
• BATTERY, REPLACING
• UPPER TORQUE ROD