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 Owners Manual > Automatic climate control with enhanced features: Climate control functions in detail
Temperature
Turn the ring to set the desired
temperature.
The automatic climate control reaches this
temperature as quickly as possible, if needed
by increasing the cooling or heating output,
and then keeps it constant.
Do not rapidly switch between different temperature
settings. Otherwi ...