Buying a used car is always associated with risks: the seller can hide the actual equipment, accident history, or even the year of manufacture. One of the most reliable ways to check the accuracy of information is find out the car modification by body number (VIN). This unique 17-digit code contains information about the manufacturer, model, engine, transmission and even country of assembly. But how to decipher it correctly and where to look for relevant information?

In this article we will look at all available methods - from free online services to contacting the traffic police, and we’ll also tell you what pitfalls await when checking foreign and domestic cars of different years of manufacture. You will learn how to distinguish the original modification from a “broken” VIN, why data for the same code can differ in different databases, and what to do if the body number is not readable or is missing from the registers.

What is VIN and where to look for it on a car

VIN (Vehicle Identification Number) is a unique vehicle identifier assigned at the manufacturer. It consists of 17 characters (numbers and Latin letters, except I, O and Qto avoid confusion) and is divided into three parts:

  • 🔹 WMI (World Manufacturer Identifier) — the first 3 characters indicating the manufacturer (for example, XTA — Lada, WDB — Mercedes-Benz).
  • 🔹 VDS (Vehicle Descriptor Section) — symbols 4 to 9, describing the model, body type, engine, etc.
  • 🔹 VIS (Vehicle Identifier Section) — the last 8 characters, where the year of manufacture, assembly plant and serial number are encrypted.

The body number can be found in several standard places:

LocationVehicle typeNotes
Under the windshield (left)All carsVisible from the outside, often duplicated on the sign
On the driver's side dashboardForeign carsCan be hidden by a plastic cover
In the engine compartment (on the side member)Domestic carsOften rusts and requires cleaning
On the driver's door (sticker)Modern modelsContains VIN and tire information
In the trunk (under the spare wheel)Some crossoversCan be embossed on metal
⚠️ Attention: If the VIN on different parts of the car does not match, this is a sign interrupted number or replacing body parts after an accident. It is better not to buy such a car without a thorough examination.

Method 1: Free online VIN decryption services

The fastest way to find out the modification is to use specialized sites, which decrypt VIN in real time. Here are the top 5 proven resources:

  • 🌍 Vinformers - supports Russian and foreign cars, shows the mileage history.
  • 🔍 Auto.KOD - detailed transcript for European and Asian brands.
  • 📊 Behind the Wheel VIN decoder — databases from the magazine, relevant for new models.
  • 🚗 Autocode — a paid report, but it shows the main parameters for free.
  • 🔧 VinDecoder — international base, suitable for rare foreign cars.

For example, for 2018 Toyota Camry with VIN 4T1B11HKXJU123456 the service will return:



Model: Toyota Camry (XV70)


Engine: 2.5L 4-cylinder (2AR-FE)


Transmission: Automatic (6 speeds)


Drive: Front


Equipment: Comfort (with leather interior and rear view camera)
⚠️ Attention: Online services may show incomplete data for old cars (before 2000) or rare modifications. For example, for VAZ-2107 1995 Often there is no information about body color or carburetor type.
📊 Which service do you use most often to check VIN?
Vinformers
Autocode
Behind the Wheel
Other
I don't check

Method 2: Official databases of manufacturers

If online services provide conflicting information, you should contact official brand resources. Many automakers provide tools for checking VIN:

The advantage of this method is 100% reliability of modification data, since the information is taken directly from the factory databases. However, there are nuances:

  • ✅ For new cars (after 2010) the data is always up to date.
  • ❌ For older models (pre-2005), an archive request may be required.
  • 🔒 Some brands (for example, BMW or Mercedes) require registration.
💡

If there is no decoder on the manufacturer's website, try to find spare parts catalog for your model - there is often a search by VIN indicating the modification.

Method 3: Check through the traffic police and state registers

In Russia, you can find out the modification by VIN through official government services:

  1. State Services Portal (gosuslugi.ru):
    • 📋 Go to the "Transport and Driving" section → "Car Check".
    • 🔍 Enter VIN in the search field.
    • 📄 The system will show data from the traffic police register, including modification, year of manufacture and registration history.
  • Traffic police website (traffic police.rf):
    • 🖥️ Section "Services" → "Vehicle check".
    • ⚠️ Here the data may be less detailed than on State Services.

    This method is suitable if:

    • 🔹 Car registered in Russia (data may not be available for foreign cars with foreign registration).
    • 🔹 Do you need official information for paperwork (for example, when purchasing or registering).
    • 🔹 You are checking legal purity car (presence of restrictions, collateral, accident).
    ⚠️ Attention: The modification may be indicated in the traffic police databases in general (for example, "Sedan 1.6 MT" instead of the exact name of the equipment). For details, use additional sources.

    Owners (number and terms)

    Restrictions (bail, arrest)

    Accident history (if any)

    Match VIN with title

    Modification (may differ from the real one) -->

    Method 4: Decoding VIN manually (step by step instructions)

    If online services are not available or you do not trust automatic transcriptions, you can decode VIN yourself according to standard ISO 3779. Let's look at an example XTA210740D1234567 (Lada Vesta 2013):

    PositionMeaningDecryption for example
    1–3 (WMI)Manufacturer codeXTA — AvtoVAZ
    4–8 (VDS)Model and specifications210740 — Vesta, sedan body, 1.6L engine (106 hp)
    9Check digitD — calculated by algorithm
    10Year of manufactureD — 2013
    11Factory code1 — Izhevsk
    12–17Serial number234567 - unique car number

    To decrypt VDS (positions 4–8), you need manufacturer's reference books. For example, for Volkswagen:

    • 🔹 3VW — Passat B6.
    • 🔹 WVWZZZ — Golf IV.
    • 🔹 9BW — Skoda Octavia.

    For domestic cars:

    • 🔹 Lada: 2190 — Granta, 2170 — Priora.
    • 🔹 UAZ: 3163 — Patriot, 2206 — loaf.
    How to calculate check digit (9th character)

    The VIN check digit is calculated using the following algorithm:

    1. Each character is assigned a weight (for example, A=1, B=2, ..., 0=0, 1=1, ..., 9=9).

    2. The weights are multiplied by the positional coefficients (8,7,6,5,4,3,2,10,0,9,8,7,6,5,4,3,2).

    3. The sum of the products is divided by 11, the remainder of the division is the check digit (if 10, then X).

    Example for VIN XTA210740D1234567:

    (8x24 + 7x20 + 6x1 + 5x2 + 4x1 + 3x0 + 2x7 + 10x4 + 0x0 + 9x3 + 8x1 + 7x2 + 6x3 + 5x4 + 4x5 + 3x6 + 2x7) mod 11 = 4 → check digit D (4).

    Method 5: Check through dealerships and service books

    If the car has been serviced by official dealer, the modification can be specified:

    • 📞 By phone - Call the dealership with the VIN. The service manager will provide data from the internal database.
    • 📖 In the service book — on the first page the VIN, modification and production date are usually indicated.
    • 🔧 Via online account - for some brands (for example, Renault or Nissan) there are personal accounts of owners with maintenance history.

    Advantages of this method:

    • 🔹 Data guaranteed accurate (taken from factory registers).
    • 🔹 You can find out repair history and warranty obligations.
    • 🔹 For some models, dealers provide free consultation even without owning a car.
    ⚠️ Attention: If a dealer refuses to provide VIN information without presenting the title, this may be a sign problems with documents on the car (for example, it is pledged or is listed as stolen).

    Method 6: Analysis of documents (PTS, STS, purchase and sale agreement)

    The modification of the car can be found in official documents:

    1. PTS (Vehicle Passport):
      • 📄 In the column “Model, vehicle type” the full name is indicated (for example, "Toyota RAV4 2.0 AT 4WD Comfort").
      • 🔢 In the column “Identification number (VIN)” there is a code for verification.
    2. STS (Certificate of Registration):
      • 🚗 In paragraph 3 (“Make, model of vehicle”) - a brief description of the modification.
      • ⚠️ Here the data can be less detailedthan in PTS.
  • Sales and purchase agreement:
    • 📝 The VIN, body number and engine number must match with the PTS.
    • 🔍 If the contract specifies another modification, this is a reason to check for fraud.

    What to do if the data is in documents don't match with VIN decoding?

    • 🔹 Check the PTS for authenticity (watermarks, series and number, traffic police stamp).
    • 🔹 Check the VIN on the body with what is indicated in the documents.
    • 🔹 Contact traffic police to clarify the data (there may have been an error during registration).
    💡

    If in the PTS or STS the modification is indicated as “unspecified” or there is a dash, this is a sign that the car has not been officially certified in Russia (for example, brought under the gray scheme).

    Method 7: Expert assessment (when VIN is not readable or missing)

    If the body number erased, damaged or missing (for example, after body repair), the following will help determine the modification:

    • 🔧 Diagnostics via OBD-II - some scanners (for example, Launch X431 or Autel) read the VIN from the electronic control unit (ECU).
    • 🔍 Analysis of body numbers — there may be additional identifiers on the side members, doorways or under the hood.
    • 📸 Comparison with spare parts catalogs — using photos of parts (headlights, bumpers, engine), experts determine the modification.
    • 👨‍⚖️ Contacting the expert bureau — for legal proceedings or registration of a duplicate PTS.

    Cost of expert assessment:

    Service typePrice (₽)Deadlines
    OBD-II Diagnostics500–150010–30 minutes
    Visual inspection by an expert2000–50001–2 hours
    Full examination with issuance of an opinion8000–150001–3 days
    Forensic examination15000–300003–7 days
    ⚠️ Attention: If the VIN is missing in all standard places, and the seller claims that “this is how it should be” - this is 100% indication of criminal history of the car (broken number, smuggling, theft). It is better to refuse such a purchase.

    Common mistakes and how to avoid them

    When checking a modification using the VIN, many make typical mistakes that lead to incorrect conclusions:

    • 🔴 Using unofficial databases — some sites show data “from memory” or take it from outdated directories. Always check information with at least 2-3 sources.
    • 🔴 Ignoring check digit - if the 9th character of the VIN does not match the calculation, the code forged.
    • 🔴 Confusion about production years — the symbol of the year (10th position) is cyclical. For example, A may also mean 1980, and 2010. For accuracy, check with PTS.
    • 🔴 Trust in the seller - even if the VIN matches, the modification could have been changed (for example, a different engine was installed). Always check physical compliance (engine, gearbox, interior).

    How to minimize risks?

    Use at least 2 data sources

    Check the VIN on the body and in the documents

    Check car history (Autocode, CarVertical)

    Inspect the car on a lift (traces of welding, repainting)

    Consult an expert when in doubt -->

    FAQ: Answers to frequently asked questions

    Is it possible to find out the modification by engine number?

    Engine number (Engine Number) contains information about the model and volume, but not about the configuration. For example, by number 2AR123456 you can determine what it is Toyota 2.5L (2AR-FE), but do not know which gearbox or drive. For a complete picture you need a VIN.

    Why do services show different modifications for the same VIN?

    The difference in data occurs due to:

    • 🔹 Outdated databases — some services do not update information about new models.
    • 🔹 Regional features - the same modification can be called differently in Europe and the USA.
    • 🔹 Manufacturer errors — sometimes incorrect data is entered into the VIN (especially for Chinese cars).

    Recommendation: check the data with official dealer or PTS.

    How to check VIN for theft or restrictions?

    To check legal purity use:

    If the car is pawned or wanted, it cannot be re-registered to the new owner.

    What to do if the VIN is not readable due to corrosion?

    Number recovery methods:

    1. Clean the surface soft brush and WD-40 (do not use abrasives!).
    2. Take a photo of the number from different angles and increase the contrast in a graphics editor.
    3. Contact forensic examination — they restore numbers using special reagents.

    If we cannot restore the VIN, we will need forensic examination to receive a duplicate PTS.

    Is it possible to find out the color of a car using the VIN?

    In most cases no — body color is not encoded in the VIN. However:

    • 🔹 For some brands (for example, BMW or Audi) color is indicated in service book or on a plate under the hood.
    • 🔹 Information about the original color may be stored in dealer databases.

    If the car has been repainted, the original color can only be determined by marks under the door seals.