China does not have a single public accident database like CARFAX, but you can still verify history from several sources. First, ask the exporter for the insurance claim records (出险记录). Major repairs go through insurance, and the claim history shows the date, amount, and damaged parts. A car with large claim amounts (over half its value) is effectively a total loss rebuild. Second, check the vehicle's registration certificate (机动车登记证书) for transfer history — multiple transfers in a short period often follow an accident. Third, run a VIN check through commercial platforms (paid, around 20-50 RMB) which aggregate insurance, maintenance, and auction data. Cross-check everything against a physical inspection: paint thickness readings on structural points, weld quality under the seals, and underbody photos. If the records and the physical condition do not match, walk away or demand a large discount.

A typical safe flow looks like this: 1. Sourcing: you pick a car from listings; the exporter confirms availability, sends photos, video and a condition report. 2. Contract: a written sales contract stating VIN, price, included costs, inspection standards and delivery terms (FOB or CIF). 3. Deposit: usually 10–30% after you or a third party verify the car. Pay to a company account, never personal. 4. Inspection: independent pre-shipment inspection; you approve the report before shipping. 5. Balance payment: due before shipment, against copy of the bill of lading. 6. Shipping and documents: exporter sends original documents by courier; you track the vessel. 7. Arrival: your customs agent clears the car, you pay duties and collect it. Timeline: typically 3–8 weeks from deposit to arrival, depending on route. Any exporter pushing for 100% upfront payment should be treated as a red flag.

It's extremely difficult. Unauthorized modifications can lead to module current overload protection, resulting in a lock. In China, you need to use the factory online engineer account to reprogram it. It's basically impossible to perform online decoding overseas. We strongly warn against blindly modifying the electrical systems of modern integrated circuit vehicles.