64 51 525 Removing And Installing Or Replacing Expansion Valve

WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant R 134a . See 64 50 ... INSTRUCTIONS FOR HANDLING REFRIGERANT R 134A .
Follow safety instructions for handling refrigerant oil . See 64 50 ... INSTRUCTIONS FOR HANDLING REFRIGERANT OIL (FOR REFRIGERANT R 134A) .

IMPORTANT: Risk of damage!
Restart engine only when A/C system has been correctly filled.
Follow instructions for opening and replacing parts in refrigerant circuit!
If A/C system is opened for more than 24 hours: Replacing drier insert for A/C system

Necessary preliminary tasks:

Remove double pipe . See 64 53 733 REPLACING DOUBLE PIPE .
Drawing off, evacuating and filling the A/C system are not included in the time value given for this work operation. See 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) .

Remove gasket (1).

Installation:

Observe direction arrows (2) without fail.

If necessary, replace damaged seal (1).

Fig 1: Identifying Gasket Positions

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) and carefully remove expansion valve (2).

Replace sealing rings and moisten with refrigerant oil.

Tightening torque. See HEATING AND AIR CONDITIONING - TIGHTENING TORQUES .

Fig 2: Identifying Expansion Valve Screws

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Evacuate and fill A/C system . See 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) .