A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009)
Installation is done is reverse order, observe the following:
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Clean the connection pipes - C - and - E - leading to the evaporator and the expansion valve connections, and check for damage.
‹› Expansion valve is available in different versions (same housing but a different control characteristic), therefore ensure the exact allocation.
‹› Note the installation instructions for O-ring seals. Refer to=> [ Refrigerant Circuit O-Ring Seals ] See: Description and Operation/Refrigerant
Circuit.
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Replace the O-ring seals - B - and - F - version.
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Coat O-ring seals lightly with refrigerant oil before installing. Refer to=> [ Refrigerant Circuit O-Ring Seals ] See: Description and
Operation/Refrigerant Circuit.
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Make sure the retaining plate - D - fits correctly on the connection pipes - C - and - E - leading to the evaporator.
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Tighten the screws - G -.
‹› Tightening specification: 10 Nm.
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Install the refrigerant line with inner heat exchanger. Refer to => [ Refrigerant Lines with Inner Heat Exchanger ]. See: Compressor
HVAC/Service and Repair/Refrigerant Lines With Inner Heat Exchanger
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Evacuate and fill the refrigerant circuit. Refer to A/C System with Refrigerant R134a.
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Install the remaining components.
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Check DTC memory of A/C control head Climatronic Control Module (J255) and erase any displayed malfunction if necessary. Refer to Vehicle
Diagnosis, Testing and Information System VAS 5051 in "Guided Fault Finding" function.
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Operate the A/C system after filling the refrigerant circuit. Refer to=> [ Operating A/C System after Filling Refrigerant Circuit ] See: Description
and Operation/A/C Refrigerant System.
‹› Note the information regarding operating the A/C system after filling. Refer to Refrigerant R134a - Servicing.