64 51 522 Removing and installing or replacing expansion valve

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2006 BMW 325Ci, 2005 BMW 325xi, 2005 BMW 325i, 2005 BMW 325Ci, and 2004 BMW 325xi. 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

G03166139

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Tightening torque: 5.5 N.m.

Unfasten screws.

Detach refrigerant lines in direction of arrow.

Fig 2: Detaching Refrigerant Lines

G03166140

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace sealing rings.
Tightening torque: 20 N.m.

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

Fig 3: Pulling Lock And Feed Out Flap

G03166141

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nut (1).

Installation:

Replace sealing rings.
Tightening torque: 8 N.m.

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

Fig 4: Detaching Double Pipe

G03166142

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws.

Installation:

Replace sealing rings.
Tightening torque: 5.5 N.m.

Pull out expansion valve in direction of arrow.

Fig 5: Pulling Out Expansion Valve

G03166143

Courtesy of BMW OF NORTH AMERICA, INC.