64 11 206 Removing and installing/replacing heater

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2014 BMW X6, 2013 BMW X6, 2012 BMW X6, 2011 BMW X6, and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Risk of injury!
Refrigerant circuit is under high pressure!
Follow safety instructions for handling refrigerant R 134a
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for Instructions for handling refrigerant oil (for refrigerant R 134a)

IMPORTANT: Risk of damage!
Restart engine only when A/C system has been correctly filled.
Follow Instructions for opening and replacing parts in refrigerant circuit for opening and replacing parts in refrigerant circuit!
If A/C system is opened for more than 24 hours: see 64 53 517 Replacing desiccant insert for A/C system
.

Necessary preliminary tasks:

Drain off A/C system. See 64 50 009 Drawing off, evacuating and filling A/C system (R 134a)
Remove CARRIER FOR INSTRUMENT PANEL .
Unclip wiring harness holders from heater
Remove fresh air duct
Remove left partition wall for units compartment. See 51 71... REMOVING AND INSTALLING/REPLACING ASSEMBLY COMPARTMENT PARTITION WALL .

Recycling

Coolant emerges when coolant lines are detached. Have a suitable collecting container ready.

Catch and dispose of escaping coolant.

Observe country-specific waste-disposal regulations.

Release screw (1) and remove refrigerant lines with cover (1) and associated seal.

Tightening torque 64 53 2AZ , see 64 53 REFRIGERANT LINES AND EXPANSION VALVE .

Replace sealing rings and moisten with refrigerant oil.

Fig 1: Identifying Refrigerant Lines With Cover

G04792567

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Connections must not be mixed up!
Mark connection sequence of water hoses prior to removal.

Release hose clamps (1) and detach water hoses.

Fig 2: Identifying Hose Clamps

G04792568

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) and nut (2) underneath.

Tightening torque 64 11 4AZ , see 64 11 HOUSING, HEATER/AIR CONDITIONER .

Fig 3: Identifying Hose Clamps Nut

G04792569

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) and remove windscreen air guide (2).

Fig 4: Identifying Windscreen Air Guide And Screw

G04792570

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Tightening torque 64 11 4AZ , see 64 11 HOUSING, HEATER/AIR CONDITIONER .

Fig 5: Identifying Windscreen Air Guide Screw Location

G04792571

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Tightening torque 64 11 4AZ , see 64 11 HOUSING, HEATER/AIR CONDITIONER .

IMPORTANT: Cover vehicle interior with protective cover to prevent interior being fouled by escaping coolant.

Feed out heater (2).

Fig 6: Identifying Heater And Screw

G04792572

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Modify evaporator , see 64 51 002 Replacing evaporator .
Modify heater core
Modify expansion valve , see 64 51 525 Removing and installing or replacing expansion valve .
Modify all servodrives

Installation:

Water drain (1) must be inserted on both sides into outlet channel (2).

IMPORTANT: In the event of incorrect fitting, there is a risk of leakage in the passenger compartment!

Fig 7: Identifying Water Drain And Outlet Channel

G04792573

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Evacuate and fill A/C system , see 64 50 009 Drawing off, evacuating and filling A/C system (R 134a) .
Fill and vent cooling system, see 17 00 008 DRAINING AND ADDING COOLANT IN RADIATOR (N62TU, N63) , and 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS (N63) , or 17 00 005 DRAINING AND ADDING COOLANT (N54) , 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS (N54) .