64 11 206 Removing and installing or replacing heater

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 535xi, 2010 BMW 535i, 2009 BMW 535xi, 2009 BMW 535i, and 2008 BMW 535xi. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

WARNING: FOLLOW INSTRUCTIONS FOR WORKING ON COOLING SYSTEM .

WARNING: To avoid injury, cover holder (1) on support tube (2).

Fig 1: Identifying Cover Holder And Support Tube

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nuts (1).

Installation:

Tightening torque 64 53 8AZ .

Detach refrigerant line (2) in direction of arrow.

Unclip refrigerant line (3).

Fig 2: Detaching Refrigerant Line

Courtesy of BMW OF NORTH AMERICA, INC.

WARNING:

When installing heater, make sure left and right air ducts are correctly seated.
Check left and right air ducts for leaks.
If necessary, reseal left and right air ducts with butylene tape (sourcing reference: BMW Parts Service).
If left and right air ducts are resealed, make sure flaps can move freely.

Feed out rubber grommet (1).

Installation:

Make sure rubber grommet (1) is correctly seated.

Release nut (2) and detach refrigerant lines (3) and (4) in direction of arrow.

Installation:

Tightening torque 64 53 7AZ .

Replace sealing rings.

Release nuts (5) on right air duct.

Fig 3: Detaching Refrigerant Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Tightening torque 64 11 4AZ.

Feed out rubber grommet (1).

Installation:

Make sure rubber grommet (1) is correctly seated.

Release spring clamps (2) and detach coolant hoses (3).

IMPORTANT: Carefully blow through aluminum triple pipe to remove remaining coolant from heat exchanger for heating system.

Fig 4: Identifying Spring Clamps And Coolant Hoses With Rubber Grommet

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Vent cooling system and check for leaks.

Release nuts (4) on left air duct.

Installation:

Tightening torque 64 11 4AZ .

Disconnect rear compartment air duct (1) in direction of arrow.

Installation:

Make sure rear compartment air duct (1) is correctly seated.

Fig 5: Identifying Rear Compartment Air Duct

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove left air duct (2) in direction of arrow.

Fig 6: Identifying Left Air Duct And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove right air duct (2) in direction of arrow.

Fig 7: Identifying Right Air Duct And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Carefully lever out locks (1) and (2).

Detach air distributor (3) in direction of arrow.

Installation:

Make sure air distributor (3) is correctly seated.

Fig 8: Identifying Air Distributor And Locks

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: FOLLOW INSTRUCTIONS FOR HANDLING OPTICAL FIBERS .

Necessary preliminary tasks:

Disconnect all necessary cable ties on support tube.
Release wiring harnesses/cable ducts and lay to one side.
If necessary, remove control units/disconnect plug connections.

Installation:

Make sure wiring harnesses/cable ducts are correctly routed and secured.

IF NECESSARY, REMOVE CD CHANGER (1) .

Loosen screws (2).

Set fuse-carrier (3) down in footwell.

Fig 9: Identifying CD Changer, Fuse-Carrier And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Installation:

Tightening torque 32 31 6AZ .

Fig 10: Identifying Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Installation:

Tightening torque 51 71 15AZ .

Fig 11: Identifying Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Installation:

Tightening torque 51 71 15AZ .

Fig 12: Identifying Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nuts (1).

Installation:

Tightening torque 51 71 15AZ .

Fig 13: Identifying Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nuts (1).

Detach support tube (2) and remove from vehicle with assistance of a second person.

Installation:

Tightening torque 51 71 15AZ .

Fig 14: Identifying Support Tube And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

If necessary, unlock and disconnect plug connections on heater.

Remove heater (1) in direction of arrow.

Installation:

Make sure heater (1) is correctly seated.

Fig 15: Removing Heater

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Make sure condensate drain (1) is correctly seated in grommet (2).

Fig 16: Identifying Condensate Drain And Grommet

Courtesy of BMW OF NORTH AMERICA, INC.