64 51 522 Removing and installing / replacing expansion valve (air-conditioning): Installation:

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.

Fit air duct to end wall, twist and then insert in bottom of microfilter.

Fig 1: Fitting Right Air Duct To End Wall And Inserting In Microfilter Bottom

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Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws and remove pressure and suction pipe.

CAUTION: Replace O-rings.
Subsequent operations are identical to 64 11 200 Removing And Installing/Replacing Heater .

Fig 2: Replacing O-Rings

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Courtesy of BMW OF NORTH AMERICA, INC.

Remove glove box, see 51 16 360 REMOVING AND INSTALLING RIGHT GLOVE BOX

Remove trim sections from right oddments tray,

Unfasten screws and pull out air duct for footwell ventilation.

Fig 3: Releasing Screws And Removing Footwell Ventilation Air Duct

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Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws and remove cover from expansion valve.

Fig 4: Removing Cover From Expansion Valve

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Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws, pull lines slightly apart and remove expansion valve.

CAUTION: Replace O-rings.

Fig 5: Removing Expansion Valve

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Courtesy of BMW OF NORTH AMERICA, INC.