All our measuring instruments (especially calipers, paint thickness gauges, and refrigerant pressure gauges) are calibrated quarterly according to ISO quality management system requirements to ensure the data we provide you is objective, accurate, and reliable.

Yes. We will use a professional diagnostic tool to scan all vehicle systems, including the Engine Control Unit (ECU), Transmission Control Module (TCM), Anti-lock Braking System (ABS), and Airbag Module (SRS), and provide English screenshots of all current and historical Diagnostic Trouble Codes (DTCs).

Battery health is the single biggest risk when buying a used Chinese EV remotely. Ask for a battery report showing state of health (SOH) and cell voltage balance from the car's BMS or a diagnostic scan — anything below 85% SOH deserves a price reduction or a pass. Check fast-charge counts and whether the pack has warranty remaining; many Chinese EVs carry 8-year/150,000 km battery warranties that may or may not transfer. Verify real-world range from energy consumption history rather than the dashboard estimate. Also confirm the on-board charger works with your country's voltage, and ask whether the connected app and OTA updates will remain accessible in your region before you pay.