A6 Sedan V6-3.2L (BKH) (2007)
Hose/Line HVAC: Service and Repair
Refrigerant Line A
Refrigerant Line A
Removing
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Drain the refrigerant circuit.
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If necessary, remove the dome brace (not present in all vehicles).
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Remove the air intake unit (not necessary on vehicles with right-hand steering) => [ Air Intake Unit ] See: Heating and Air Conditioning/Air
Duct/Service and Repair/Air Intake Unit.
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Remove the coolant pipe to the A/C unit heat exchanger (e.g. for Audi RS6).
‹› Depending on the engine, the coolant line from the A/C unit heat exchanger to the engine may also be routed through the grommet - D - (e.g. Audi
RS6). For this reason, the coolant pipe has to be removed for these vehicles.
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Remove the refrigerant lines from the connection to the A/C unit => [ Refrigerant Lines at A/C Unit ] See: Refrigerant Lines at A/C Unit.
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Open the screw connection in the refrigerant line (between - A - and - B -) => [ Restrictor ] See: Heating and Air Conditioning/Service and
Repair/Removal and Replacement/Restrictor (remove and install restrictor).
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Release refrigerant line - A - from grommet - D - and remove the refrigerant line.
Installing
Installation is carried out in the reverse order, when doing this note the following:
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Coat O-ring seals lightly with refrigerant oil before installing => [ Refrigerant Circuit O-Ring Seals ] See: Heating and Air Conditioning/Service
and Repair/Removal and Replacement/Refrigerant Circuit O-Ring Seals.
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Install the refrigerant lines from the connection to the A/C unit => [ Refrigerant Lines at A/C Unit ] See: Refrigerant Lines at A/C Unit.
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Following attachment, check routing of refrigerant pipes. They must be inserted in holders provided and not make contact with other components.