64 51 591 Removing And Installing/Replacing Evaporator

WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove heater/air conditioner. Refer to REMOVING AND INSTALLING/REPLACING HEATER .

Carefully pull rubber grommet (1) and foam seal (2) over pipes (3) and (4).

NOTE: If necessary, replace rubber grommet (1) and/or foam seal (2).

Release screws (5).

Fig 1: Pulling Rubber Grommet

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten plug connection (1) and disconnect.

Carefully remove seal (2) and all remnants.

Installation:

Replace seal (2).

Turn temperature sensor for cold-air distributor (3) in direction of arrow and detach in upwards direction. Expose connecting cable (4) of temperature sensor for cold-air distributor (3) towards rear of heater/air conditioner (5).

Fig 2: Turning Temperature Sensor For Cold-Air Distributor

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove upper housing (2) of heater/air conditioner in direction of arrow.

Installation:

Make sure upper housing (2) is correctly seated on heater/air conditioner.

Fig 3: Removing Upper Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Pull evaporator (1) in direction of arrow out of lower housing (2) of heater/air conditioner.

Installation:

Make sure evaporator (1) is correctly seated in lower housing (2) of heater/air conditioner.

Fig 4: Pulling Evaporator Of Lower Housing

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT:

Do not bend radiator fins.

If necessary, clean or straighten radiator fins with slat comb.