64 11 205 Removing and installing/replacing heating and air-conditioning unit

Special tools required: 

• 00 9 030

Necessary preliminary tasks: 

• Draw off REFRIGERANT FROM AIR CONDITIONING SYSTEM 
• Remove DASHBOARD COMPLETE WITH SUPPORT
• Remove intake silencer housing. See REMOVING INTAKE SILENCER HOUSING (N16) or REMOVING INTAKE SILENCER HOUSING (N18) .

Unlock and detach coolant lines (1).

Carefully blow through twin pipes to remove remaining coolant from heat exchanger.

Slacken nut (2).

Tightening torque 64 11 4AZ .

Disconnect refrigerant lines (3).

Installation note: 

Renew sealing rings.

Use special tool 00 9 030 to install sealing rings without damaging them.

Fig 1: Identifying Coolant Lines, Nut, Refrigerant Lines And Gasket

Courtesy of BMW OF NORTH AMERICA, INC.

Ensure gasket (4) is correctly seated.

Vent and inspect COOLING SYSTEM .

Remove heating and air-conditioning unit (1) with an auxiliary person helping.

Installation note: 

Heating and air-conditioning unit is held by support for dashboard.

When installing support with dashboard, make sure heating and air-conditioning unit is in correct position.

Fig 2: Identifying Heating And Air-Conditioning Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Spray condensate drain (1) with LUBRICANT G14 (sourcing reference BMW Group Parts) before installation of heating and air-conditioning unit (2).

Make sure heating and air-conditioning unit (2) is correctly seated on condensate drain (1).

Fig 3: Identifying Heating And Air-Conditioning Unit With Condensate Drain

Courtesy of BMW OF NORTH AMERICA, INC.

Perform a visual inspection after installing the heating and air-conditioning unit (2).