64 11 540 Replacing distributor housing at top for heating and air-conditioning unit

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Necessary preliminary work

Remove INSTRUMENT PANEL TRIM

Release screws (1).

Remove cable routing holder (2) from the working area.

Fig 1: Identifying Cable Routing Holder From Working Area Screws

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Heating and air-conditioning unit removed for purposes of clarity.

Unclip deflection arm (1) from angle positioning lever (2).

Installation note:

Deflection arm (1) must snap audibly into place!

Fig 2: Identifying Deflection Arm From Angle Positioning Lever

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Unlock and disconnect plug connections on upper distributor housing (2).

Remove upper distributor housing (2).

Installation note:

Make sure filter housing guide lugs (3) are correctly seated in associated guide tabs on upper distributor housing (2).

Fig 3: Identifying Upper Distributor Housing, Filter Housing Guide Lugs And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Servomotors must be readdressed in the event of replacement!

Addressing can only be carried out with the BMW diagnosis system.

Service functions:

Body
Heating and air conditioning function
Flap motors
Readdress flap motors