64 51 520 Removing and installing/replacing expansion valve (N47)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
WARNING:
Danger of injury!
Refrigerant circuit is under high pressure!
Avoid contact with refrigerant and refrigerant fluid.
Read and comply with safety information:
Refrigerant circuit is under high pressure!
Avoid contact with refrigerant and refrigerant fluid.
Read and comply with safety information:
- Handling R 134a tetrafluorethane refrigerant . See 6450... NOTE FOR HANDLING R134A REFRIGERANT or 6450... SAFETY INFORMATIONS FOR HANDLING TETRAFLUORETHANE REFRIGERANT R134A
- HANDLING REFRIGERANT FLUID
IMPORTANT:
Risk of damage!
Restart engine only when air conditioning system has been correctly filled.
Follow NOTES for opening and replacing parts in refrigerant circuit.
Restart engine only when air conditioning 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:
- Renew CONDENSER ASSY .
Necessary preliminary tasks:
- DRAIN OFF AIR CONDITIONING SYSTEM
- Remove electronics box . See 12 14 550 REPLACING ELECTRONICS BOX (N47 D16/20 K/U/O/T 1) or 12 14 550 REPLACING CONTROL UNIT BOX (N47 D20 O 1 WITH SCR)
Release screws (1).
Tightening torque 64 53 1AZ .
Disconnect refrigerant lines (2) and lay to one side.
Installation note:
Replace sealing rings.
Use special tool 00 9 030 to install sealing rings without damaging them.
Release screws (1).
Tightening torque 64 53 2AZ .
Remove expansion valve (2).
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: