Quick Check of Refrigerant Charge Amount

Quick Check of Refrigerant Charge Amount

The following procedure can be used for quickly checking whether the A/C system has a proper charge of refrigerant or not.

1. Start engine and warm up to normal operating temperature (ECT more than 85 °C, 180 °F).
2. Operate A/C at the following conditions for a few minutes.
- Main (front) A/C switch at ON position
- Rear A/C main switch at ON position (if equipped)
- Front blower speed selector at max position
- Rear blower motor switch at max position (if equipped)
- Air flow selector at face position
- Temperature selector at max cool position
- Vehicle door at all open
- Air inlet door at recirculation position

Step 1 - 3:

3. Look at the sight glass (1) and compare what is observed with the symptoms listed in the table.