Cooling returned briefly after adding refrigerant, then faded because charge mass was never measured and the leak was not repaired.
Why this matters
The value of this case is the order of evidence and the verification step. The same symptom on another vehicle may have a different cause.
Evidence to capture first
- Refrigerant identification
- Recovered mass
- Pressure and temperature
- Leak evidence
- Oil staining and service history
A disciplined path
- Recover and weigh the charge
- Repair the verified leak
- Evacuate and charge by specified mass
- Confirm stable temperatures and pressures
Decision point
Adding refrigerant is not a leak diagnosis and may create an overcharge.
Source desk
Use current model-specific service information for specifications, connector locations, disabling procedures, and tightening values. The following public resources support the broader safety or system context used in this guide.
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