64 51 522 Removing And Installing Or Replacing Expansion Valve

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 BMW M3, 2005 BMW M3, 2004 BMW M3, 2003 BMW M3, and 2002 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Draw off A/C system. Refer to 64 50 009 DRAWING OFF, EVACUATING AND FILLING A/C SYSTEM (R 134A) .
Remove heater bulkhead. Refer to 51 71 080 REMOVING AND INSTALLING/REPLACING HEATER BULKHEAD .

Unfasten nut.

Fig 1: Unfastening Nut

G03119806

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Tightening torque, 5.5 Nm.

Unfasten screws.

Detach refrigerant lines in direction of arrow.

Fig 2: Detaching Refrigerant Lines

G03119807

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace sealing rings.

Tightening torque, 20 Nm.

If necessary, pull lock (1) in direction of arrow and feed out flap (2).

Fig 3: Feeding Out Flap

G03119808

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nut (1).

Fig 4: Detaching Double Pipe

G03119809

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace sealing rings.

Tightening torque, 8 Nm.

Detach double pipe (2) in direction of arrow and lay to one side.

Unfasten screws.

Fig 5: Pulling Out Expansion Valve

G03119810

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace sealing rings.

Tightening torque, 5.5 Nm.

Pull out expansion valve in direction of arrow.