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

Fig 1: Sight Glass Inspection Chart

Courtesy of SUZUKI OF AMERICA CORP.

Fig 2: Identifying Amount Of Refrigerant

Courtesy of SUZUKI OF AMERICA CORP.