64 51 592 Removing and installing/replacing evaporator (A/C control)

WARNING: This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, and 2001 BMW 525i. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Heater - A/C is removed.

Unclip retainers (1).

Remove defroster nozzle, center (2).

Fig 1: Removing Defroster Nozzle

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock plug connection (1) and disconnect.

Unlock limit switch for blower (2) and pull in direction of arrow out of guide (3).

Fig 2: Removing Blower Limit Switch

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Unscrew holder (2).

Detach expansion valve (3) in direction of arrow from flange (5) and feed out of housing (4).

Installation:

Replace sealing rings.

Make sure flange (5) is correctly seated.

Fig 3: Detaching Expansion Valve

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip retainers (1).

Release screws (2) and remove blower housing completely (3) in direction of arrow.

Fig 4: Removing Blower Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) and remove housing base (2).

Fig 5: Removing Housing Base

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip retainers (1).

Fig 6: Releasing Retainers

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Unclip retainers (2).

Pull both housing sections (4) apart and press flange (6) in direction of arrow out of housing opening.

Unclip temperature sensor holder (5) in direction of arrow from evaporator (3).

Pull evaporator (3) in direction of arrow out of housing.

Installation:

Make sure all moving parts are correctly seated (linkage, flaps).

Make sure both housing sections (4) are correctly seated.

Make sure temperature sensor cable outside housing is of sufficient length.

Fig 7: Removing Evaporator

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: Do not bend radiator fins.
If necessary, clean or align radiator fins with fin comb.