A proforma invoice is written by a salesperson. A brochure is written by a marketing team. A VIN is stamped by a factory, recorded by a customs authority and printed on a certificate that follows the car to the destination port. When the three disagree, the VIN is the one that decides what you actually bought.
Most import disputes we see are not about price. They are about a model year that turned out to be one character off, a trim that was never in the build, or a chassis number that did not match the bill of lading. All three are visible before the deposit is paid, if the buyer knows where to look.
This guide explains the 17 characters of a Chinese vehicle VIN, the three different "years" that buyers confuse, the six documents the number must match, and the checks worth running before money moves.
A VIN is a 17-character identifier structured by ISO 3779; China's national equivalent is GB 16735. The structure is not brand-specific, so the same reading method works on a sedan, a pickup, a bus or an electric van.
| Positions | Section | What it carries |
|---|---|---|
| 1–3 | WMI (World Manufacturer Identifier) | Country/region of manufacture and the manufacturer |
| 4–8 | VDS (Vehicle Descriptor Section) | Model line, body style, engine or motor, restraint system — defined by the manufacturer |
| 9 | Check digit | A calculated validation character |
| 10 | Model year code | The manufacturer's model year designation |
| 11 | Plant code | The assembly plant |
| 12–17 | Serial number | The individual unit sequence |
Positions 1–3. The first character is a country/region code assigned under ISO 3780. China is assigned the letter L, so a vehicle assembled in mainland China will normally begin with L — for example LVH, LVS, LGW, LS5 and similar three-character combinations depending on the manufacturer. Two cautions. First, a Chinese brand can sell vehicles built outside China; a Chinese badge does not guarantee an L VIN. Second, some plants assembling from imported kits or in special economic arrangements may carry different codes. Treat the WMI as a strong indicator, then confirm the origin on the certificate of origin.
Positions 4–8. These characters are manufacturer-defined. You cannot decode them from memory or from a generic online table with confidence, because the same position can mean different things on different model lines, and Chinese manufacturers revise their own coding between generations. The reliable reading is the one printed on the manufacturer's certificate of conformity (the CCC certificate for the China market) or supplied in writing by the exporter.
Position 9. A check digit calculated from the other sixteen characters. It is mandatory in North America and defined in GB 16735, but not every export document prints or validates it. Where it is present, use it as a typo detector: if a calculator rejects the VIN, someone has transcribed a character somewhere in the document chain.
Position 10. The model year code. The cycle uses 21 letters — I, O, Q, U and Z are excluded to avoid confusion with digits — followed by the digits 1 to 9, repeating every 30 years.
| Code | Model year | Code | Model year |
|---|---|---|---|
| P | 2023 | T | 2026 |
| R | 2024 | V | 2027 |
| S | 2025 | W | 2028 |
Position 11. The plant code, assigned by the manufacturer. Useful for tracing which factory built the unit, and for spotting a mixed batch when a container was supposed to be a single production run.
Positions 12–17. The production sequence number. This is what makes the car unique, and it is the number that must appear identically on every shipping and customs document.
The single most common misunderstanding in vehicle import is treating "model year" as "the year the car was built". They are different fields, and the difference can be worth real money at resale.
A contract that says "latest model" specifies nothing. A contract that says "model year code T in position 10, build date not earlier than [month/year], confirmed on the certificate of conformity" is enforceable. Ask for the wording, not the adjective. The same discipline applies to the clauses you fix before the deposit.
One transposed character is enough to hold a container at destination, trigger a certificate amendment, or force a re-inspection at your cost. Before the deposit, ask for the VIN in writing and check it against every document in the chain:
If any two of these differ, stop. The correction is cheap before shipment and expensive after — a mismatch is one of the most common causes of delay described in our destination clearance guide.
On an EV or plug-in hybrid, the VIN identifies the vehicle. The traction battery is identified separately, by a pack serial number and a part number that appear on the battery label and, where applicable, on the certificate of conformity. Warranty claims are tied to both identifiers, and so is any future replacement.
For new EVs, request the battery capacity and chemistry as stated on the certificate, not as stated in the brochure. For used EVs, request a state-of-health report tied to the VIN, because a battery health figure quoted without a VIN is a figure about a different car. Buyers shipping EVs should also read the battery shipping rules before booking space.
Used vehicle exports from China pass through an inspection and export-licence process, and the VIN is the thread that links the inspection report, the registration record and the physical car. Three checks are worth insisting on:
The odometer reading is not encoded in the VIN. Mileage comes from the inspection report and the registration history, and it should be requested as a document, not as a statement. Our used car export guide and the pre-shipment inspection checklist cover the documents that should travel with each unit.
A VIN decode is a starting point, not a due-diligence report. It will not tell you the actual options fitted, the accident history, the real mileage, the battery health, or whether the car in the photographs is the car in the container. Manufacturer build data is available for some brands and model years and not for others, and Chinese domestic model lines are less consistently covered than global platforms.
Use the VIN to confirm identity, model year and document consistency. Use an inspection for condition. Use the contract for remedies.
None of these steps requires technical expertise. They require the discipline to ask for a document instead of accepting a description.
If you are comparing quotes for a container or a RoRo allocation and want the unit-level identification verified before you commit, send us the model, the quantity and the destination port. We will confirm the specification, the model year code and the document set that will travel with the cargo.
Shengyue Auto — SHENGYUE INVESTMENT HOLDINGS CO., LIMITED
Email: shengyue4499@gmail.com | WhatsApp: +86 19121331679 | shengyueauto.com
In most cases, yes. ISO 3780 assigns the letter L to the China region, and vehicles assembled in mainland China normally begin with L. The exception runs both ways: a Chinese brand may sell vehicles assembled outside China, and certain kit-assembly or special-zone operations may carry a different identifier. Confirm the origin on the certificate of origin rather than on the first character alone.
No. Position 10 carries the manufacturer's model year designation, which is a specification cycle, not a production date. The actual build date appears on the manufacturer's plate and on the certificate of conformity, and the two can sit in different calendar years — a car built in late 2025 can carry a 2026 model year code.
T. The model year cycle uses 21 letters, skipping I, O, Q, U and Z, followed by the digits 1 to 9: P is 2023, R is 2024, S is 2025, T is 2026, V is 2027 and W is 2028. The cycle repeats every 30 years, so a decode is only reliable when you also know roughly when the vehicle was built.
Usually because a character was transcribed incorrectly somewhere in the document chain — commonly 0 versus O, 1 versus I, or 8 versus B. Chinese-market VINs follow GB 16735, and not every export document prints or validates the check digit, so a failure is a prompt to re-read the documents character by character rather than proof of a fake.
The inspection report, the registration history and the physical condition of the VIN plate. Ask for photographs of the stamp and the manufacturer's plate taken in the same session as the exterior shots, verify that the VIN on the inspection report matches the export documents, and look for signs of plate replacement such as fresh welds or masking lines around the plate. Mileage and battery health are not encoded in the VIN and must come from documents.