audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Refrigerant > < Heater Box, Removing and Installing|Page 5228
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Housing Assembly HVAC: Service and Repair
Evaporator Housing, Removing and Installing

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Discharge A/C refrigerant. 

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Remove glove compartment.  See: Body and Frame/Interior Moulding / Trim/Glove Compartment/Service and Repair

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Remove four bolts from evaporator cover.

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Remove plenum tray.

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Disconnect refrigerant lines to evaporator.

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Plug all open line connections.

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Disconnect all connections between evaporator housing and vehicle.

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Remove evaporator housing.

NOTE: The evaporator housing cannot be disassembled and must be replaced as an assembly.

Install

Reverse order of removal noting the following:

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Replace seal -A- between vehicle and evaporator housing.

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Replace all O-rings properly. 

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Insert water drain hose -B- through opening in plenum, route hose straight and kink-free, ensure hose connections are tight and sealed.

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Check water drain valve -C- for proper operation, clean any dirt, wax or undercoating from valve flap.

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Valve flap must close.

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After installation, ensure there are no air leaks around housing.

Refrigerant > < Heater Box, Removing and Installing|Page 5228