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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning (Refrigerant R134A Servicing) (2 Of 2) >> 87 Air Conditioning >> Refrigerant Circuit General Information >> Refrigerant Circuit Components Allocation, High And Low Pressure Sides >> Refrigerant Circuit Lines And Hoses

Refrigerant Circuit Lines And Hoses

The mixture of refrigerant oil and refrigerant R134a corrodes certain metals (such as copper) and alloys and dissolves some hose materials. Therefore use original replacement parts only.

Lines and hoses are joined by threaded connections or special plug connectors.

NOTE:

Observe specified torque for threaded connections, use appropriate release tools for plug connectors.

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