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Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1533 (Heating And Air Conditioning - Repair Instructions) >> 12 AUXIL. Heater With Controls >> 64 12 021 Removing And Installing Complete Independent Heater

64 12 021 Removing And Installing Complete Independent Heater

WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required: 

Necessary preliminary tasks: 

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.  See 17 00 ... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM .
NOTE: Disconnect fuel line on independent heater with special tool 13 3 010. 
Fig 1: Identifying Special Tool
G04727677Courtesy 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.

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

Release hose clamps (3).

Fig 2: Identifying Plug Connection And Hose Clamps
G04768912Courtesy of BMW OF NORTH AMERICA, INC.

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.  . See 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR LEAKS (N62, N62TU) .

Fig 3: Detaching Independent Heater From Fixture
G04768913Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

If necessary, replace rubber grommets (1) and grommets (2).

Fig 4: Identifying Rubber Grommets And Grommets
G04768914Courtesy of BMW OF NORTH AMERICA, INC.