64 12 160 Removing and installing/replacing complete independent heater with bracket

Special tools required: 

• 13 3 010 

See FUEL SYSTEM - SPECIAL TOOLS .

Recycling 

Fuel escapes when fuel lines are detached. Have a suitable collecting container ready.

Catch and dispose of escaping fuel.

Observe country-specific waste-disposal regulations.

Necessary preliminary tasks: 

• Remove LEFT OR RIGHT UNDERBODY PANELLING

Disconnect plug connection (1).

Release hose clamp (2) and detach fuel line.

Release screw (3).

Tightening torque 64 12 2AZ  , see 64 12 INDEPENDENT HEATING .

Fig 1: Identifying Hose Clamp And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect coolant hoses (1) with special tool 13 3 010  .

Release hose clamps (2) and detach coolant hoses (1).

Release nuts (4) and unclip associated hoses from holder (5).

Remove heater (3) and set down on a suitable surface.

Fig 2: Identifying Heater And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Release hose clamp (1) and remove complete heater (2) with bracket.

Fig 3: Identifying Hose Clamp And Complete Heater

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement: 

Modify muffler. 

Release hose clamp (1) and detach coolant hose.

Release bolt (2).

Tightening torque 64 12 3AZ.  See AUXILIARY HEATER .

Disconnect plug connection (3) and remove auxiliary water pump (4).

Installation: 

Check coolant hoses for damage and replace if necessary.

Fig 4: Identifying Plug Connection And Auxiliary Water Pump

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) and remove heater from bracket (2).

Tightening torque 64 12 4AZ.  See AUXILIARY HEATER .

Fig 5: Identifying Bracket And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

After installation: 

• Vent cooling system