64 12 021 Removing and installing complete independent heater
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2005 BMW 745i, 2005 BMW 745Li, 2004 BMW 745i, 2004 BMW 745Li, and 2003 BMW 745i. However, it is still accessible from the selected car via links, so may be relevant.
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 wheel arch lining at front left.
- Remove left underbody paneling. Refer to 51 47 ... REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT UNDERBODY PANELING .
NOTE:
Disconnect water hoses on independent heater.
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 .
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 fuel line on independent heater with special tool 13 3 010.
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.
Disconnect plug connections (1) and (2).
CAUTION:
To avoid damaging the independent heater, it is absolutely essential to adhere to the following contacting sequence for the plug connections:
- Plug connection (1)
- Plug connection (2)
Release hose clamps (3).
Disconnect fuel line (1).
Disconnect water hoses (2).
Release screws (3).
Detach independent heater (4) in direction of arrow from fixture (5).
Installation:
Make sure exhaust system (6) is correctly seated.
Top up coolant and vent cooling system. Refer to 17 00 005 DRAINING AND ADDING COOLANT (N62) .
Installation:
If necessary, replace rubber grommets (1) and grommets (2).