We will never perform blind deep disassembly unless there are clear severe fault codes or extreme noises. The sealing of the engine and transmission is crucial, and compromising the factory seals to investigate non-existent issues is unprofessional. We rely on data flow and external acoustic and fluid analysis to make judgments.

Start by asking the seller for a photo of the full vehicle registration certificate. Check that the registered owner matches the seller's company name. Any change of ownership should appear with a transfer stamp and date. Second, request a lien check. In China, vehicle mortgages are registered with the vehicle management office. A clean certificate shows no mortgage registration; if one exists, the car cannot be legally exported until the loan is settled and the lien released. Third, verify there are no unpaid traffic fines and no gaps in compulsory insurance, since these can block export clearance. Ask the platform to include a title verification step in the transaction flow, and only pay the balance after the title transfer to the export company is confirmed.

Basic perception functions (like Adaptive Cruise Control ACC, Lane Keeping Assist LKA, and Automatic Emergency Braking AEB) rely on the vehicle's local radar and cameras, and can operate normally overseas. However, advanced features that heavily depend on high-precision maps and cloud data (like Navigation on Autopilot NOA and Full Self-Driving FSD) cannot be activated overseas.