We can purchase the hardware (diagnostic device) on your behalf. However, the original online diagnostic accounts (especially those involving anti-theft programming and module matching) have strict domestic IP location and real-name authentication restrictions, making it very difficult to log in stably from overseas for a long time, and we cannot guarantee technical support for this.

An OBD scan is one of the most cost-effective tools in a remote pre-purchase inspection, but you need to know what it can and cannot tell you. What it reveals well: current and stored fault codes across the engine, transmission, ABS, airbag, and body modules. A car with dozens of cleared codes in multiple modules may have electrical problems or a history of tampering. It also shows readiness monitors — if all monitors show 「not ready」 on a car that claims to be freshly serviced, the codes were probably cleared recently to hide something. What it reveals with the right software: live data. You can watch engine idle stability, coolant temperature under load, transmission shift behavior, and battery cell voltages on EVs. Abnormal fuel trims or misfire counters can flag worn injectors or coils before any warning light appears. What it cannot do: prove real mileage (odometers can be corrected digitally), detect physical accident repairs, or judge paint and rust. Practical advice: ask your inspector for a full-system scan report with screenshots, not just a 「no codes」 verbal summary. For Chinese brands, make sure the tool supports their protocols — mainstream scanners cover BYD, Geely, and Chery well, but some small brands need brand-specific software.

The main export hubs are Shanghai, Guangzhou/Shenzhen, Qingdao, Tianjin, and Ningbo. Shanghai has the most RoRo and container sailings to Europe, Africa, and the Americas. Southern China (Guangzhou/Shenzhen) is best for Southeast Asia and Oceania. Qingdao and Tianjin serve Korea, Japan, and northern routes efficiently. Choose based on three factors: sailing frequency to your port (weekly is ideal), total inland logistics cost from the car's location to the port, and whether your exporter has used-car export qualification at that port—some only operate from one or two ports. Also confirm the terminal handles used-car export declarations, since not every port processes them. Your exporter should recommend the optimal port-to-port combination with a written quote breakdown.