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.

A typical payment structure looks like this: 1. Deposit: 10-30% after you confirm the car and price, often to reserve the vehicle and start the inspection. 2. Balance: paid after you approve the inspection report, but before or at shipment. A common safeguard is paying against a copy of the bill of lading, with telex release of the original B/L after funds arrive. 3. Never send 100% upfront to a new supplier. Use traceable methods (T/T bank transfer to a corporate account matching the company name, or escrow for first orders) and keep every agreement in writing. 4. Timeline: quote within days, inspection 3-7 days, booking and loading 1-2 weeks, ocean transit 3-6 weeks, customs clearance 3-10 days. Red flags: personal bank accounts, pressure to skip inspection, prices far below market.

Most exporters offer a limited warranty of 30 to 90 days covering major mechanical failures (engine, gearbox, electric motor), but only if you can prove the fault existed before shipment. Cosmetic issues, wear-and-tear parts (brakes, tires, clutch) and damage caused by improper local maintenance are almost always excluded. What is realistic to claim: · Engine or transmission failure confirmed by a licensed workshop within the warranty window, with a diagnostic report. · Undeclared accident or flood damage discovered after arrival (strongest case, keep the inspection report and photos). How to protect yourself: 1. Get the warranty terms written into the contract, including claim procedure and response time. 2. Have the car inspected locally immediately upon arrival and keep all records. 3. Communicate claims in writing (email) with photos and reports attached. Treat the warranty as a backup, not the main protection. A thorough pre-shipment third-party inspection matters far more than a paper warranty.