The exterior paint is well-maintained; the body structure shows no signs of repair or major accidents. The interior is clean and tidy. Safety indicator lights are normal; passive safety features such as airbags are in good working order; all electronic components are functioning properly; and both static and dynamic equipment are complete. Driving the vehicle is smooth and efficient, with no issues with ignition, starting, acceleration, cornering, deceleration, or braking. Acceleration is rapid, and power output is smooth and comfortable, with no idling vibration. Overall, the vehicle's condition is fair. The body frame structure shows no deformation or twisting, and there are no signs of fire or water damage. There are signs of repainting, but the overall paint is in good condition, ruling out major accidents. It offers good visibility, a spacious, bright, and well-ventilated interior, making it suitable for family use.
We use two steps: 1. Insert a medical-grade endoscope through the spark plug hole to visually inspect cylinder wall scratches and carbon buildup on the piston top; 2. Extract an engine oil sample to check for large metal debris or emulsification (caused by coolant leakage).
We will use a megohmmeter (insulation resistance tester) to measure the insulation resistance of the high-voltage bus. If the resistance value is below the national safety standard, it indicates a risk of leakage, and the vehicle will be deemed unqualified.
To prevent intermittent failures due to aging of the resistance wire, we will start the engine and set the seat heating/ventilation to maximum for at least 5 minutes, confirming significant temperature changes or airflow output in the cushion and backrest using an infrared thermometer or body sensor.
