64 12 021 Removing and installing independent/auxiliary heater

WARNING: This page is about a different car, the 2005 BMW 545i and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

For Special Tool identification, see FUEL SYSTEM - SPECIAL TOOLS - 5-SERIES (E60) .

Special Tools Required:

13 3 010

Necessary Preliminary Tasks:

Remove left front wheel. Refer to 36 10 300 REMOVING OR INSTALLING FRONT OR REAR WHEEL .
Remove front left wheel arch lining. Refer to 51 71 040 REMOVING AND INSTALLING/REPLACING FRONT LEFT OR RIGHT WHEEL ARCH COVER .
Remove left underbody paneling. Refer to 51 47 ... REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT UNDERBODY PANELING .

WARNING: Danger of scalding! Only perform the following tasks on an engine that has cooled down. Follow instructions for working on cooling system. Refer to 17 00 ... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM .

NOTE: Disconnect coolant hoses on independent heater.

NOTE: Disconnect fuel line on independent heater with special tool 13 3 010.

Fig 1: Locating Fuel Line On Independent Heater

Courtesy of BMW OF NORTH AMERICA, INC.

Recycling:

Fuel escapes when fuel line is detached. Have a suitable collecting container ready.

Catch and dispose of escaping fuel.

Observe country-specific waste-disposal regulations.

Release hose clip (1) and detach fuel line.

Release spring clips (2) and detach coolant hoses.

Installation:

Top up coolant and vent cooling system. Refer to 17 00 009 CHECKING COOLING SYSTEM FOR WATER LEAKS .

Unscrew nut (3).

Fig 2: View Of Fuel Line And Coolant Hoses

Courtesy of BMW OF NORTH AMERICA, INC.

WARNING: Secure independent heater against falling out.

Disconnect plug connections (1) and (2).

IMPORTANT: To avoid damaging the independent heater, it is absolutely essential to adhere to the following connecting sequence for the plug connections during installation:

Plug connection (1).
Plug connection (2).

Release screws (3).

Remove independent heater (4) in direction of arrow.

Installation:

Make sure exhaust pipe of independent heater (4) is correctly seated in muffler (5).

Fig 3: Locating Independent Heater Plug Connections

Courtesy of BMW OF NORTH AMERICA, INC.