64 51 590 Removing and installing/replacing evaporator

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2006 BMW 330Ci, 2005 BMW 330xi, 2005 BMW 330i, 2005 BMW 330Ci, and 2004 BMW 330xi. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Heater is removed.

Remove heating element. See 64 11 207 Replacing heater core

Remove output stage/switch for blower of heater - A/C.

Withdraw temperature sensor (1).

Disconnect plug connection (2).

Unclip linkage (3) on servodrive.

Fig 1: Disconnecting Plug Connection

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Courtesy of BMW OF NORTH AMERICA, INC.

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

Release screw (2).

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

Installation:

Insert lugs (4) first.

Unclip wiring harness.

Fig 2: Unlocking Servodrive

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Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 3: Turning Cam Disk

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Courtesy of BMW OF NORTH AMERICA, INC.

Release screws on fan housing.

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

Installation:

Ensure correct cable routing.

Fig 4: Lifting Off Blower Housing

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Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 5: Unclipping Retainers & Removing Lower Housing

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Courtesy of BMW OF NORTH AMERICA, INC.

Remove evaporator (1).

Replacement only:

Remove expansion valve (2).

Fig 6: Removing Expansion Valve

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Courtesy of BMW OF NORTH AMERICA, INC.

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