The technician will start the vehicle and turn on the air conditioning system, measuring the actual temperature at the vents at the lowest and highest settings with a thermometer; at the same time, they will connect a manifold pressure gauge to check if the refrigerant pressure in the high and low pressure lines is within the normal range, determining if there is a chronic refrigerant leak.

Before export, we perform a standard external wash and interior vacuuming to meet basic hygiene inspection requirements by customs. However, we do not engage in deceptive "refurbishments" (such as repainting large areas with cheap paint or using low-quality interior refurbishing agents) to preserve the vehicle's true physical condition for buyer assessment.

Once the car system (especially in a closed ecosystem) undergoes a major version upgrade, its bootloader is usually locked, preventing downgrades. If this happens, there is basically no solution in an overseas environment. Therefore, we strongly warn: do not blindly insert a USB drive to upgrade while offline.