64 51 590 Removing and installing/replacing evaporator

Necessary preliminary tasks: 

• Remove HEATER 
• Remove HEATING ELEMENT 

Release screws (1).

Remove cover (2) with twin pipes (3) and gasket (4).

Installation note: 

Ensure gasket (4) is correctly seated.

Fig 1: Identifying Screws, Cover, Twin Pipes And Gasket

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Disconnect plug connection from temperature sensor (1).

Release screws (2) and remove cover (3).

Fig 2: Identifying Plug Connection From Temperature Sensor, Screws And Cover

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Remove evaporator (1).

Replacement: 

Remove EXPANSION VALVE (2) .

Fig 3: Identifying Evaporator And Expansion Valve

Courtesy of BMW OF NORTH AMERICA, INC.