The VIN is the only identifier that follows a car from the factory through Chinese registration, export and your own customs office. Reading it properly takes ten minutes and catches the mismatches that cost the most: a different version from the one quoted, an older model year, a VIN that fails its own check digit, or a car whose identity has been tampered with.
1. How a Chinese VIN is built
Chinese VINs follow the national standard GB 16735-2019, which is aligned with the international VIN standard. Every VIN has seventeen characters, and the letters I, O and Q never appear, so they cannot be confused with 1 and 0.
| Position | Meaning | What to check |
|---|---|---|
| 1–3 | World manufacturer identifier (WMI). Vehicles made in China begin with L. | That it belongs to the manufacturer you are being sold. A 2024 Honda Crider, for example, begins LHG, the code for GAC Honda. |
| 4–8 | Vehicle descriptor section, coded by the manufacturer: model line, body, engine and restraint details. | That it matches the model and version quoted. Public VIN databases show 2024 model-year Crider 180 Turbo VINs beginning LHGFS162. |
| 9 | Check digit, 0–9 or X, calculated from the other sixteen characters. | That it computes correctly (section 2). |
| 10 | Model year code. | That it matches the model year you are paying for (section 3). |
| 11 | Assembly plant code, assigned by the manufacturer. | Consistency across all documents. |
| 12–17 | Production sequence number. | Consistency across the car and every document. |
The manufacturer's descriptor codes are not published in a single public table, so decoding positions 4–8 precisely means using the manufacturer's data or a reputable decoding database, and then confirming the result physically on the car: engine, transmission, trim and equipment.
2. The check digit, worked through
The ninth character exists to catch copying errors and crude forgeries: change any single character and the check digit usually stops matching. The calculation is the same one used in North America, and it takes two minutes with a calculator.
- Convert each letter to a number: A=1, B=2, C=3, D=4, E=5, F=6, G=7, H=8, J=1, K=2, L=3, M=4, N=5, P=7, R=9, S=2, T=3, U=4, V=5, W=6, X=7, Y=8, Z=9. Digits keep their own value.
- Multiply each position by its weight. The weights for positions 1 to 17 are 8, 7, 6, 5, 4, 3, 2, 10, 0, 9, 8, 7, 6, 5, 4, 3, 2. Position 9, the check digit itself, has a weight of zero.
- Add the seventeen products and divide the total by 11. The remainder is the check digit; a remainder of 10 is written as X.
An illustrative example, not a real vehicle: LHGFS162?R2000001, where ? is the digit to verify. The products are L 3×8=24, H 8×7=56, G 7×6=42, F 6×5=30, S 2×4=8, 1×3=3, 6×2=12, 2×10=20, R 9×9=81, 2×8=16 and 1×2=2, with the zeros contributing nothing. The total is 294; 294 divided by 11 leaves a remainder of 8, so the valid VIN is LHGFS1628R2000001. Any VIN in your documents that fails this test is either mistyped or not genuine, and either way it must be resolved before payment.
3. Model year versus build date
The tenth character is the model year, which the manufacturer assigns and which does not have to equal the calendar year of production. Recent codes:
| Code | L | M | N | P | R | S | T |
|---|---|---|---|---|---|---|---|
| Model year | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
A 2024 model-year car can have been built in 2023; the Crider's 2024 model year, for instance, went on sale in May 2023. The build date comes from the manufacturer's nameplate, which Chinese rules require to show the month and year of manufacture, and from the vehicle's factory certificate. If you are buying stock, the build date matters more than the model year; our guide to buying new cars from stock explains why.
4. Where the VIN appears on the car
- The windscreen plate. On most passenger cars, a VIN plate is readable from outside through the lower corner of the windscreen.
- The stamped VIN. Chinese rules require the VIN to be permanently marked on the body or frame in a place that cannot easily be removed. The location varies by model: under a flap in the floor carpet, on a crossmember or in the engine bay.
- The nameplate. Usually on a door pillar, together with the manufacture date.
- The electronics. Most modern cars report the VIN stored in the engine control unit to a generic diagnostic tool, and several other modules store it too.
- The documents. Factory certificate, Chinese registration certificate if the car has been registered, export licence, commercial invoice, bill of lading and certificate of origin.
5. The checks to make before paying
- Ask for photographs of the windscreen plate, the stamped VIN and the nameplate, taken so that the whole marking and its surroundings are visible.
- Verify the check digit of the VIN as written on the invoice.
- Confirm the WMI and descriptor section decode to the make, model and version you are buying.
- Confirm the model year code against the quotation.
- Ask for a diagnostic scan showing the VIN reported by the engine control unit.
- Compare the VIN character by character across every document. The reasons this fails in practice, and how to prevent it, are in VIN and engine number matching.
For cars that have been registered in China, the registration date matters as well, because it determines which export route is available: see the 2026 zero-kilometre export rule.
6. Red flags
- A stamped VIN with grinding marks, filler, paint that differs from the surrounding area, or characters that are uneven in depth, spacing or typeface
- A windscreen plate held by rivets that are not the factory type, or scratched around its edges
- A different VIN in the engine control unit, which may mean a replaced module (a repair that should come with an explanation) or a car assembled from more than one vehicle
- A check digit that fails
- A model year code older than the one quoted
- A seller unwilling to photograph the stamped VIN, which takes five minutes with a torch
Any one of these is a reason to stop and investigate. Two or more are a reason to walk away, whatever the price. Our own stock, including the Honda Crider 180 Turbo, is offered with VIN plate, stamped VIN, nameplate and diagnostic scan photographs for the exact unit.
Honda, Crider and Honda SENSING are trademarks of Honda Motor Co., Ltd. CZJ Motors is an independent vehicle exporter and is not affiliated with, authorised by or endorsed by Honda Motor Co., Ltd. or GAC Honda Automobile Co., Ltd. The names are used only to identify the genuine vehicles we supply and describe.