A4 Quattro Sedan L4-2.0L Turbo (CAEB) (2009)
‹› The couplings - B - and - C - on the refrigerant line - D - with inner heat exchanger must be replaced each time the refrigerant line is opened.
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Pry the couplings - B - and - C - using a screwdriver - A - out of the refrigerant line - D - with inner heat exchanger - arrow -.
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Thoroughly clean all parts of the refrigerant line connections (for example, using Cleaning Solution (D 009 401 04)).
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Check the connector - A - for the refrigerant line with inner heat exchanger for damage.
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Replace the O-ring seals - B, G -, support rings - C, F - and couplings - D, E - ; version.
‹› Note the installation instructions for O-ring seals. Refer to=> [ Refrigerant Circuit O-Ring Seals ] See: Heating and Air Conditioning/Description
and Operation/Refrigerant Circuit.
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Coat O-ring seals lightly with refrigerant oil before installing. Refer to=> [ Refrigerant Circuit O-Ring Seals ] See: Heating and Air
Conditioning/Description and Operation/Refrigerant Circuit.
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Press on the couplings - D - and - E - until this audibly latch into the refrigerant line with inner heat exchanger connector piece - A -.
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Thoroughly clean the refrigerant lines - A - and - B - around the connection area and check for damage.