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

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Necessary preliminary tasks:

Remove INSTRUMENT PANEL TRIM

Release screws (1).

Installation note:

Replace screws.

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

Fig 1: Identifying Cable Guide Holder And 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

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 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