64 53 520 Replacing safety pressure switch

WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 9 030 .

WARNING: Danger of injury!
Refrigerant circuit is under high pressure!
Follow safety instructions for handling R 134a (tetrafluorethane) refrigerant See 64 50... SAFETY INFORMATIONS FOR HANDLING TETRAFLUORETHANE REFRIGERANT R134A or 64 50... INSTRUCTIONS FOR HANDLING R 134A REFRIGERANT .
Follow safety instructions for HANDLING REFRIGERANT FLUID .
Avoid contact with refrigerant and refrigerant fluid.

IMPORTANT: Risk of damage!
Restart engine only when air conditioning system has been correctly filled.
Follow INSTRUCTIONS for opening and replacing parts in refrigerant circuit.
If air conditioning system is opened for more than 24 hours: REPLACING DESICCANT INSERT FOR AIR CONDITIONING SYSTEM

Necessary preliminary work:

DRAIN OFF AIR CONDITIONING SYSTEM

Disconnect plug connection (1) and release safety pressure switch (2).

Installation note:

Replace sealing rings.

Use special tool 00 9 030 to mount sealing rings without damaging them.

Tightening torque 64 53 6AZ .

Fig 1: Identifying Safety Pressure Switch And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

After installation

EVACUATE AND FILL HEATING AND AIR CONDITIONING SYSTEM .
Check leak-tightness of valve insert with soap solution
In event of leakage:
- DRAW OFF A/C system.
- Check sealing surfaces on line and valve insert for damage, replace line or valve insert if necessary.
- If necessary, carry out LEAK DETECTION .