64 51 522 Removing and installing or replacing expansion valve

WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, and 2001 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Necessary Preliminary Tasks:

Draw off refrigerant from 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 .
Remove trim for instrument panel, bottom left. Refer to 51 45 181 REMOVING AND INSTALLING/REPLACING TRIM FOR INSTRUMENT PANEL, BOTTOM RIGHT .
Remove right glovebox. Refer to 51 16 360 REMOVING AND INSTALLING RIGHT GLOVE BOX .

Release screws (1), tightening torque, (18 N.m.).

Detach lines (2).

Installation:

Replace sealing rings.

Fig 1: Detaching Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Unhook holder (1).

Unclip heating duct for right footwell (2) and remove in direction of arrow.

Installation:

Ensure heating channel for right footwell (2) is correctly seated.

Fig 2: Locating Heating Duct For Right Footwell

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

If necessary, disconnect plug connection at socket.

Unclip trim on center console (2) and remove.

Fig 3: Identifying Trim On Center Console

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: For purposes of clarity, illustration shows heater/air conditioner removed.

Turn control wheel in center of fresh air grill (1) in direction of arrow to end position.

Unclip cable. Release screws (2).

Remove cover (3).

Fig 4: View Of Control Wheel In Center Of Fresh Air Grill

Courtesy of BMW OF NORTH AMERICA, INC.

Remove sound insulation (1).

Fig 5: Locating Sound Insulation

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) and remove plates (2).

Pull lines apart a little and remove expansion valve (3).

Fig 6: Removing Expansion Valve

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace sealing rings.