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Home >> Audi >> 2016 >> S8 Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning (Refrigerant R134A Servicing) (2 Of 3) >> 87 Air Conditioning >> Refrigerant Circuit General Information >> Refrigerant Circuit Components Allocation, High And Low Pressure Sides >> O-Ring Seals

O-Ring Seals

These rings seal off the connection points between individual components of the refrigerant circuit.

Only O-rings that are resistant to refrigerant R134a and refrigerant oil must be installed. Make sure they are original replacement parts.

O-ring seals:

-- Always use only once.

-- Make sure diameters -a and b- are correct.

Fig 1: Checking O-Ring Seal Diameters
GWWA87-0021Courtesy of AUDI OF AMERICA, LLC

-- Coat with refrigerant oil before installing. Refer to REFRIGERANT CIRCUIT (vehicle-specific Service information). (vehicle-specific Service information) and the Parts information.

NOTE:

The color coding of refrigerant circuit O-rings with R134a has been discontinued. Black and colored O-rings are used. Refer to the Parts information and REFRIGERANT CIRCUIT (vehicle-specific Service information). (vehicle-specific Service information).

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