BMW 7 Series: Removing And Installing Fan Housing For Heater/Air Conditioner Fan

Necessary preliminary tasks

• Remove RIGHT/REAR SUSPENSION CROSS-BRACE.
• REMOVE auxiliary E box

Unlock plug connection (1) on AUC sensor (2) and disconnect.

Fig. 8: Identifying Lock Plug Connection On AUC Sensor

Release screws (1) on fan housing cover (2).

Lift out fan housing cover.

Fig. 9: Identifying Fan Housing Cover Screws

Release screws (1) on fan housing (2).

Unfasten plug connections (3) and disconnect.

Carefully feed out fan housing (2).

Fig. 10: Identifying Fan Housing Screws And Fasten Plug Connections

REMOVING AND INSTALLING HEATER/AIR CONDITIONING SYSTEM

Necessary preliminary work

• Remove RADIO AND A/C CONTROL PANEL

REMOVING AND INSTALLING OR REPLACING OZONE GENERATOR (BEFORE 09/2010)

NOTE: The ozone generator was installed on vehicles built before 09/2010.

Necessary preliminary work:

• Remove UPPER INSTRUMENT PANEL STORAGE COMPARTMENT

Disconnect plug connection (1).

Unlock ozone generator (2) in direction of arrow and remove towards front from filter housing (3).

Fig. 11: Disconnecting Plug Connection

Installation note: For purposes of clarity, illustration shows heating/air conditioning unit (1) removed.

Retaining lugs (3) on ozone generator (4) must be correctly engaged in guides on filter housing (3).

Fig. 12: Identifying Retaining Lugs On Ozone Generator And Filter Housing

REMOVING AND INSTALLING/RENEWING CONTROLLER FOR REAR CABIN FAN

Necessary preliminary tasks

• Remove CENTRE ARMREST STORAGE COMPARTMENT

Unlock catch (1) and at same time slide controller (3) in direction of arrow in downward direction.

Remove controller (3) from rear cabin fan housing (4).

Unfasten plug connection (2) and disconnect.

Fig. 13: Removing Controller From Rear Cabin Fan Housing

REMOVING AND INSTALLING/RENEWING VENTILATION TEMPERATURE SENSOR (CENTER FRESH-AIR GRILLE)

Necessary preliminary tasks

• Remove CAR INFOTAINMENT COMPUTER

Disconnect plug connection (1).

Turn temperature sensor (2) on plug socket in direction of arrow as far as it will go.

Remove temperature sensor (2) from center fresh-air grille (3).

Installation: Pay attention to lead sequence.

Make sure temperature sensor (2) is correctly engaged in middle fresh-air grille (3).

Fig. 14: Turning Temperature Sensor On Plug Socket

REMOVING AND INSTALLING/REPLACING ACTUATOR DRIVE FOR DEFROSTING FLAP

Necessary preliminary tasks

• Remove CENTRAL INFORMATION DISPLAY
• Remove FRONT SPEAKER CARRIER

Position of actuator drive:

OVERVIEW OF ACTUATOR DRIVES ON HEATER/AIR CONDITIONER

Release screws (1).

Remove actuator drive (2) and unlock and disconnect plug connection (3).

Fig. 15: Identifying Actuator Drive, Plug Connection And Screws

Replacement:

Servomotors must be re-addressed in the event of replacement! Addressing can only be carried out with the BMW diagnosis system.

Service functions:

• Body
• Heating and A/C function
• Flap motors
• Re-address flap motors

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