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).

Always rely on the original factory network data from the 4S store. Third-party platforms may have delays or errors when capturing data (such as incorrect VIN entry). In case of a conflict, we rely on physical verification of the actual vehicle to resolve the data discrepancies.

Yes. Due to the significant difficulty in extinguishing lithium battery fires, insurance companies typically charge 20%-40% higher rates for comprehensive coverage on used EVs compared to ICE vehicles. Additionally, the absolute deductible for minor scratches on the body will also be increased accordingly.