64 51 590 Removing and installing/replacing evaporator

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.

NOTE: Heater is removed. Refer to 64 11 205 REMOVING AND INSTALLING / REPLACING HEATER (AUTOMATIC AIR CONDITIONER) or 64 11 206 REMOVING AND INSTALLING/REPLACING HEATER (A/C CONTROL) .
Remove heating element. Refer to 64 11 207 REPLACING HEATER CORE .
Remove output stage/switch for blower of heater - A/C. Refer to 64 11 228 REPLACING OUTPUT STAGE/SWITCH FOR HEATER - A/C SYSTEM BLOWER .

Withdraw temperature sensor (1).

Fig 1: Identifying Linkage On Servodrive

G03119811

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (2).

Unclip linkage (3) on servodrive.

Unlock servodrive (1), remove and disconnect plug connection.

Fig 2: Unlocking Plate

G03119812

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (2).

Unlock plate (3) (see magnifying glass) and remove.

Installation:

Insert lugs (4) first.

Unclip wiring harness.

Turn cam disk (1) until microswitch (2) can be unclipped and removed.

Fig 3: Removing Microswitch

G03119813

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws on fan housing.

Fig 4: Lifting Off Blower Housing

G03119814

Courtesy of BMW OF NORTH AMERICA, INC.

Lift off blower housing (1) and feed out double pipe (2).

Installation:

Ensure correct cable routing.

Unclip retainers (1) and remove lower housing (2).

Fig 5: Removing Lower Housing

G03119815

Courtesy of BMW OF NORTH AMERICA, INC.

Remove evaporator (1).

Fig 6: Removing Evaporator

G03119816

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement only:

Remove expansion valve (2). Refer to 64 51 522 REMOVING AND INSTALLING OR REPLACING EXPANSION VALVE .

CAUTION: Do not bend cooling fins.
If necessary, clean/align cooling fins with slat comb.