Remote mechanical assessment relies on documented evidence: 1. Cold-start video: Ask for a video of the engine starting from cold — listen for rattles, watch for smoke (blue = oil burning, white = possible head gasket issue). 2. OBD scan: A full diagnostic scan reveals fault codes in the engine, gearbox, and electronics. Request the raw scan report, not a screenshot summary. 3. Service records: Cross-check mileage against maintenance records and inspection stickers; consistent records indicate a cared-for car. 4. Fluid check: Photos of the oil dipstick and coolant color tell a lot — milky oil or rusty coolant are red flags. 5. Test drive video: A short drive video shows gear shifts, braking, and steering behavior. Combine these with the pre-shipment inspection report. A seller who refuses to provide cold-start video or OBD data is a warning sign.

VIN consistency is checked at customs in both China and your country, and a mismatch can block clearance. Do the following: 1. Verify early: before payment, ask for clear photos of the VIN plate (dashboard, door frame, engine bay on some models) and compare them with the VIN on the purchase contract, inspection report and any registration documents. 2. Check the characters: VINs never contain the letters I, O or Q. If you see them, the document is either fake or mistyped. 3. Decode it: the first 3 characters are the world manufacturer code, characters 4-8 describe the model and configuration. Decode it online to confirm the documents match the actual trim level you are buying. 4. At destination: when the car arrives, re-check the VIN against the bill of lading and your import declaration before accepting delivery. Any discrepancy found before shipping can be corrected cheaply; after arrival it becomes a legal problem. Make VIN verification part of your pre-shipment inspection checklist.

Our technical report will read the environmental information from the vehicle's factory-issued documentation (including certifications like National V, National VI, etc.). You need to submit the specific emission limit data we provide (such as grams of CO, THC, NOx emissions) to your country's environmental or customs authorities for compliance comparison.