A6 Quattro Sedan V6-3.0L (AVK) (2002)
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High Pressure Safety Valve HVAC: Description and Operation
The pressure relief valve is mounted on the compressor. At approx. 38 bar (551 psi), the valve opens to vent excessive pressure. When system pressure
is reduced to approx. 30-35 bar (435-508 psi), the valve closes to prevent total refrigerant loss. The refrigerant will not discharge completely.
- O-ring: 8.8 mm x 1.9 mm
- Tightening torque: 10 Nm (7 ft. lb)
CAUTION! Connection does not have a Schrader valve to prevent gas from escaping if the pressure relief valve is removed. Only remove the
pressure relief valve when the refrigerant has been discharged from the A/C system.
