Body components (structural/reinforcing/panels) have accident-related damage; passive safety devices defective; vehicle performance (including three-electric system) degraded or performance limited after repairs.
Accident inspection: main structure undamaged, reinforcing parts undamaged, panels damaged, hinges normal; engine bay: key mechanical components normal; exterior: none; interior: most functions normal, airbag normal, seatbelt normal, dashboard normal, instrument readings normal, lighting system normal; start-up check: main components normal; tools: spare tire present.
For older vehicles or those used in high temperature and humidity areas, we will focus on opening the hood to check if the insulation of the wiring harness in the high-temperature area of the engine compartment is cracked or brittle, to identify potential short circuit risks that could lead to spontaneous combustion.
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.
We use quantitative standards. Minor scratches less than 3 cm that do not reach the base coat (which can be polished) are considered normal wear; scratches over 3 cm deep to the base coat or dents larger than 2 cm in diameter will be highlighted in the inspection report's "Appearance Defect Distribution Map" with close-up photos.
