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Home >> Audi >> 1995 >> 90S, CS V6-2.8L (AAH) >> Repair and Diagnosis >> Heating and Air Conditioning >> Service and Repair >> A/C Refrigerant System, Evacuating and Recharging
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A/C Refrigerant System, Evacuating and Recharging

CAUTION: Always follow manufacturer's instructions when using a refrigerant recovery/ recycling/ recharging unit.

- Only a high pressure service valve is used for A/C system servicing. A low pressure service valve is not installed in the A/C system. Carry out all A/C system service operations (i.e. discharging, evacuating and charging) through the high pressure service valve only.
- Follow all Safety Precautions when evacuating and recharging the A/C refrigerant system.
- Follow refrigerant recovery/ recycling/ recharging unit manufacturer's instructions for evacuating and recharging A/C system.
- Evacuate refrigerant system for a minimum of 30 minutes.
- When recharging A/C system, add correct amount of refrigerant and PAG oil to system. See Capacities.
- After system recharge, manually rotate A/C compressor approx. 10 turns before starting engine.
- Start engine with A/C off. After idle speed has stabilized, switch A/C on and let engine idle (compressor running) for a minimum of two minutes before raising engine speed (RPM).

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