Do not use a high-pressure water gun directly! The high-pressure water can instantly damage the fragile aluminum fins of the condenser, leading to a permanent decrease in cooling efficiency. We can only use a low-pressure air gun or a soft brush for surface cleaning.

A Chinese VIN is 17 characters, and decoding it takes minutes but reveals a lot. Positions 1-3 are the World Manufacturer Identifier. Cars sold domestically in China usually start with L (for example LFV for FAW-VW, LGB for Dongfeng Nissan), which tells you it was built in China rather than imported. Position 10 is the model year letter or number. Positions 4-8 describe the model, body type, and drivetrain, so you can verify the seller's description matches the actual car. Cross-check the VIN in three places: the plate at the base of the windshield, the sticker on the door jamb or B-pillar, and the registration certificate. Mismatched VINs or signs the plates were re-riveted are a serious red flag for a cloned or rebuilt vehicle. Use the VIN to pull a history report from a Chinese data provider and to verify recall status with the manufacturer. Any seller who hesitates to share the full VIN is telling you something important.

The standard set: commercial invoice, packing list, bill of lading, export customs declaration, certificate of origin, and a copy of the vehicle title/registration. How to verify: the bill of lading number should be trackable on the shipping line's website; the certificate of origin is verifiable through CCPIT's online system; and the VIN must match across all documents, the inspection report, and the car itself. Ask for scans of everything before paying the balance, and have a freight forwarder review the set. Mismatched VINs, missing title copies, or vague promises that "documents will follow" are red flags worth pausing the deal over.