64 11 205 Removing and installing / replacing heater (automatic air conditioner)

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.

Draw off A/C system. See 64 50 009 Drawing Off, Evacuating And Filling A/C System (R 134a)

Unfasten clip from right and left air ducts, twist air duct and lift out.

Fig 1: Removing Air Ducts (Automatic A/C)

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Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Fit air duct to end wall, twist and then insert in bottom of microfilter.

Fig 2: Installing Air Ducts (Automatic A/C)

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Courtesy of BMW OF NORTH AMERICA, INC.

WARNING: Danger of scalding!
Only perform this work after engine has cooled down.

Unfasten clips (1 to 3) and remove water hoses. Carefully blow through lines to remove remaining coolant from heating element.

Installation:

Filling and bleeding the cooling system. See 17 00 039 BLEEDING COOLING SYSTEM AND CHECKING FOR LEAKS .

Fig 3: Removing Water Hoses (Automatic A/C)

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Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws on end wall.

Fig 4: Releasing Screws On End Wall (Automatic A/C)

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Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws and remove pressure and suction pipe.

Installation:

Replace sealing rings.

Subsequent tasks are described in the section Removing and installing/replacing heater

Fig 5: Removing Pressure And Suction Pipe (Automatic A/C)

G03154607

Courtesy of BMW OF NORTH AMERICA, INC.