BMW X3 Service & Repair Manual: Removing and installing or replacing expansion valve
Special tools required:
- 00 9 030
WARNING: Danger of injury! Refrigerant circuit is under high pressure! Avoid contact with refrigerant and refrigerant oil.
Read and comply with safety instructions:
- Handling R 134a tetrafluorethane refrigerant .
- HANDLING REFRIGERANT FLUID
IMPORTANT: Risk of damage! Restart engine only when A/C system has been correctly filled.
Follow NOTES for opening and replacing parts in refrigerant circuit.
NOTE: If air conditioning system is opened for more than 24 hours:
- Replace DESICCANT INSERT FOR AIR CONDITIONING.
Necessary preliminary tasks:
- DRAIN OFF AIR CONDITIONING SYSTEM
- Remove TENSION STRUT FROM SPRING STRUT DOME ON LEFT
Release screws (1).
Detach refrigerant lines (2) from expansion valve (3).
Installation note:
Replace sealing rings.
Use special tool 00 9 030 to install sealing rings without damaging them.
Release screws (1).
Remove expansion valve (2) from retaining clip.
Installation note:
Place expansion valve (1) exactly on refrigerant lines (2) and (3).
Fit screws of expansion valve (1) and make sure retaining clip (4) is correctly positioned.
After installation:
- EVACUATE AND FILL AIR CONDITIONING SYSTEM
Removing and installing/renewing evaporator
Necessary preliminary work:
Remove HEATER/AIR CONDITIONER
Carefully pull rubber grommet (1) and foam seal (2) over pipes (3) and (4).
NOTE: If ...
Other materials:
BMW X3 Service & Repair Manual > Heater with operation: Removing and installing/replacing actuator drive for central kinematics (a/c
control)
IMPORTANT:
Servomotors must be readdressed in the event of replacement!
Addressing can only be carried out with the BMW diagnosis system.
Service functions:
Body
Heating and air conditioning function
Flap motors
Readdress flap motors
Necessary preliminary work:
Re ...