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.

Used cars are classified under HS heading 8703 (motor vehicles for transport of persons), with the last four digits determined by engine type and size. Gasoline cars usually fall in 8703.21–8703.80 depending on displacement; pure EVs fall under 8703.80; hybrids have their own subheadings. The duty amount depends on your country's tariff schedule: 1. Most countries charge duty on the CIF value (car price + freight + insurance), not the FOB price. 2. Many developing markets levy higher duties on used vehicles than new ones, and some add a surcharge based on age — older cars can cost significantly more to clear. 3. After duty, you typically pay VAT/GST on the CIF + duty total, plus port and customs fees. Practical tips: ask your exporter to state the exact HS code on the commercial invoice and confirm it with a local customs broker before shipping. A wrong code can trigger reclassification, penalties, or delays. Also budget for any excise tax tied to engine capacity — in several markets a 2.5L car clears far cheaper than a 3.5L one.

For dealers who purchase the same brand models in bulk over a long term, we can coordinate senior technicians domestically to offer paid, regular Zoom video technical Q&A to resolve the issues you encounter locally.