64 51 002 Replacing Evaporator

Necessary preliminary tasks: 

• Remove heater

Release screws (1).

Fig 1: Identifying Screws

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Release screws (1) and remove expansion valve (2).

Installation: 

Ensure that seals are correctly seated.

Replace sealing rings and moisten with refrigerant oil.

Tightening torque. See HEATING AND AIR CONDITIONING - TIGHTENING TORQUES .

Fig 2: Identifying Expansion Valve With Screws

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Release screws (1) and carefully remove upper housing section (2).

Fig 3: Identifying Upper Housing Section

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Remove evaporator (1).

Fig 4: Identifying Evaporator

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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