How to Check a VIN Number

The VIN is your vehicle’s identity card. These 17 characters contain valuable information about the car’s origin, specifications, and history. When you’re buying used, the VIN is your first verification tool. Here’s how to find it, decode it, and use it to secure your purchase.

What Is a VIN?

The VIN (Vehicle Identification Number) is a unique 17-character code assigned to every vehicle produced since 1981. Before that, manufacturers used proprietary formats of varying length. Since 1981, the ISO 3779 standard mandates a universal 17-character format, identical worldwide.

Every VIN is unique. No two vehicles share the same number. The VIN never contains the letters I, O, or Q to avoid confusion with the digits 1 and 0.

Where to Find the VIN on Your Vehicle

The VIN is stamped or affixed at several locations. Checking that all locations match is essential for detecting fraud.

Primary Locations

1. The manufacturer’s plate: usually located in the driver’s door frame (on the B-pillar). This is the most accessible spot.

2. The windscreen: a small plate visible from outside, at the bottom left of the windscreen (driver’s side). You can read it without opening the vehicle.

3. The engine bay: stamped on the suspension turret, on the bulkhead (the partition between the cabin and engine), or on a chassis rail.

4. The floor pan: stamped under the carpet, often on the front passenger side. This location is hard to reach but also hard to tamper with.

5. The registration document: listed on the carte grise (field E on the French certificat d’immatriculation) or your V5C in the UK.

Secondary Locations

6. The boot: on some models, the VIN is stamped under the boot carpet or in the spare wheel well.

7. Under the driver’s seat: some manufacturers (notably Volkswagen Group) place a VIN under the seat.

8. The tailgate or rear door: visible on the frame when the door is open.

9. The glovebox: on some American or Asian models, a VIN sticker is placed inside the glovebox.

10. Electronic modules: the VIN is programmed into the engine ECU, airbag module, power steering module, and other controllers. An OBD2 tool can read these electronic VINs.

Checking for Consistency

Compare the VIN at a minimum of 3 different locations: manufacturer’s plate, windscreen, and registration document. If they don’t match, the vehicle may have undergone “ringing” (replacing identity plates to disguise a stolen or write-off vehicle).

Also check that the stamping looks original. Misaligned digits, a different font, or signs of re-stamping are warning signs.

How to Decode the 17 Characters

The VIN splits into three sections: WMI (positions 1 to 3), VDS (positions 4 to 9), and VIS (positions 10 to 17).

Section 1: WMI (World Manufacturer Identifier), Positions 1 to 3

The first three characters identify the manufacturer and country of manufacture.

Position 1: geographic zone

• 1, 4, 5: North America (USA)
• 2: Canada
• 3: Mexico
• J: Japan
• K: South Korea
• L: China
• S: United Kingdom
• V: France and Spain
• W: Germany
• Z: Italy

Positions 2-3: manufacturer

Some common examples:

• VF1: Renault (France)
• VF3: Peugeot (France)
• VF7: Citroen (France)
• WBA: BMW (Germany)
• WDB: Mercedes-Benz (Germany)
• WVW: Volkswagen (Germany)
• WF0: Ford (Germany)
• ZFA: Fiat (Italy)
• TMB: Skoda (Czech Republic)
• UU1: Dacia (Romania)

Section 2: VDS (Vehicle Descriptor Section), Positions 4 to 8

These five characters describe vehicle characteristics. Their meaning varies by manufacturer. They typically encode:

• Model or range
• Body type (saloon, estate, SUV)
• Engine type
• Transmission
• Trim level

Position 9: check digit

The ninth position is a check digit calculated from the other 16 characters using a specific algorithm. It verifies the VIN hasn’t been altered or mistyped. This system is mandatory for vehicles sold in North America. In Europe, this position is often used to encode other information, but more manufacturers are adopting the check digit.

Section 3: VIS (Vehicle Identifier Section), Positions 10 to 17

The last eight characters identify the individual vehicle.

Position 10: model year

The tenth position indicates the model year using a cyclical code:

Note: the model year can differ from the registration year. A vehicle produced in September 2025 may carry the code T (2026) if it’s the 2026 model year.

Position 11: assembly plant

Each manufacturer assigns a code to its factories. For example, at Renault, F is Flins, D is Douai, N is Novo Mesto (Slovenia).

Positions 12 to 17: serial number

The last six characters form the sequential serial number. This is what makes each VIN unique within the same model, factory, and year.

What the VIN Reveals About Your Vehicle

Technical Specifications

Decoding the VIN gives you the factory specifications: exact model, engine, transmission type, trim level. This lets you verify consistency with the seller’s listing.

If the ad claims a top-spec trim but the VIN shows a base model, there’s a problem. Either the listing is misleading, or badges have been swapped (legal but dishonest).

Vehicle History

The VIN is the key to accessing vehicle history:

• HistoVec (France): registration history, CT dates, declared claims, administrative status (liens, theft, blocks)
• Manufacturer recalls: manufacturers publish recall campaigns by VIN range. Check whether your vehicle is affected and whether the recalls have been completed.
• Service history: some manufacturers offer VIN-linked service tracking. At brand dealerships, the history is usually accessible.

Stolen Vehicle Detection

The stolen vehicle database (FVV in France) can be queried using the VIN. Police have direct access. For private buyers, the HistoVec report mentions whether the vehicle has a theft record.

Detecting Fraudulent Imports

An imported vehicle must be re-registered in France. The VIN reveals the country of origin. If the WMI indicates German manufacture (W) but the documents show a French vehicle with no re-registration history, something’s wrong.

Some vehicles written off abroad are cheaply repaired and reimported into France for resale. The VIN lets you trace the origin and detect these cases.

Free Tools for Checking a VIN

HistoVec (France)

The HistoVec service from France’s Ministry of the Interior is free and official. It requires the registration number and first registration date. The seller can generate a shareable link. Information includes registration history, CT dates, declared claims, and administrative status.

Limitation: HistoVec only covers French history. For an imported vehicle, you won’t get the history from the country of origin.

Manufacturer Recall Checks

Every manufacturer offers a recall verification tool on their official website. Enter the VIN and you’ll get the list of recalls affecting your vehicle and their status (completed or pending).

The SIV Portal

The Systeme d’Immatriculation des Vehicules allows you to verify certain information linked to the registration certificate. Access is more limited than HistoVec but can confirm basic details.

VIN Decoding Tools

Several online tools decode the VIN structure for free: manufacturer, country, year, basic specifications. Automano offers a VIN decoder that extracts technical information and helps you verify consistency with the seller’s listing.

VIN-Related Scams

VIN Cloning

The scammer copies the VIN from an identical, legitimate vehicle and applies it to a stolen or written-off car. At first glance, the VIN is valid and passes basic checks. Detection relies on physical verification: original stampings look different from applied plates.

The Double-Identity Vehicle

A severely damaged vehicle (classified as a write-off) is repaired off the books and put back on the road using the papers of a similar vehicle that’s been scrapped. The VIN on the registration document then doesn’t match the physical VIN on the car.

Modified VIN

Individual characters in the stamped VIN are altered to hide the vehicle’s true origin. A 3 can become an 8, a 1 can become a 7. Careful inspection of the stampings usually reveals traces of modification.

The VIN Checklist for Used Car Buying

1. Ask for the VIN before visiting
2. Decode the VIN to learn the factory specifications
3. Check the history on HistoVec
4. Look up manufacturer recalls
5. On site, compare the VIN at least 3 locations
6. Verify it matches the registration document
7. Inspect the stampings (alignment, font, modification traces)
8. Run an OBD diagnostic to read the electronic VIN

A VIN decoder like Automano’s lets you complete steps 2 and 3 quickly, straight from your phone. Cross-reference the VIN data with the vehicle’s visual condition for a complete picture before making your decision.