S6 Quattro Sedan V10-5.2L (BXA) (2007)
Hose/Line HVAC: Service and Repair
Refrigerant Lines at A/C Unit
Refrigerant Lines at A/C Unit
Removing
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Switch off ignition.
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Drain the refrigerant circuit.
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Remove the plenum chamber cover.
DANGER!
Even when the engine is cold, both pump/valve unit valves can be hot.
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Remove the windshield wiper arm, cowl panel trim, and complete windshield wiper
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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: Air Duct/Service and Repair/Air Intake
Unit.
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Remove bolt - A -.
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Disconnect refrigerant lines - B - and - C - from the connecting flange to the A/C unit, and seal open connections.
‹› If refrigerant lines - B - and - C - cannot be disconnected, the refrigerant line through the grommet - G - has to be released.
‹› To close the open connection at the refrigerant line connection flange to the A/C unit and refrigerant lines - B - and - C - (to prevent dirt and
moisture from entering).
Installing
Installation is carried out in the reverse order, when doing this note the following:
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Check the grommet - F - for damage.