64 12 500 Removing and installing or replacing complete heater

WARNING: This page is about a different variant/trim than selected.

Disconnect plug connections (1) to (3).

Fig 1: Disconnecting Auxiliary Heater Plug Connections

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: To avoid damage during installation, it is absolutely essential to adhere to the following contacting sequence for the plug connections:

Unfasten hose clip (1).

Detach intake hose (3) in direction of arrow from heater (2).

Release screws (4).

Fig 2: Detaching Intake Hose

Courtesy of BMW OF NORTH AMERICA, INC.

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

Detach fuel line (1) from heater (5).

Release hose clamp (3).

Detach water hose (2) from heater (5).

Release screw (4).

Fig 3: Removing Auxiliary Heater Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Detach exhaust hose (6) in direction of arrow from heater (5).

Fig 4: Disconnecting Hose For Heater & Removing Heater

Courtesy of BMW OF NORTH AMERICA, INC.

Lift heater (5) upwards.

Unfasten hose clip (2).

Detach water hose (1).

Lift out heater.

Installation:

Replace gasket (3).

Make sure exhaust hose (4) is correctly seated on flange of heater (5).