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Enter your 17-character VIN below. No email required to see your result — we'll show you the model series, body type, manufacturing plant, and the engine family fitted to your specific vehicle.
Demo tool — try WDD205, WDB211, or W1K213 to see sample results. The production version integrates a live Mercedes-Benz data card lookup.
Our free Mercedes VIN decoder identifies your vehicle's model series, chassis code, manufacturing plant and engine family in seconds — no account, no email, no obligation.
Try it above — result appears instantly. For the full picture of all eight free tools, see our Tools hub.
Your 17-character Vehicle Identification Number is found on the driver's side door jamb, the base of the windscreen, or your V5C logbook. No account, no email required to see your result.
Your VIN is parsed against Mercedes-Benz WMI codes, model series identifiers and production plant data to establish your exact chassis code — such as W205 or W213.
Model series, body type, manufacturing plant, production year, and the engine family most commonly fitted to that configuration. From there, confirm the exact engine on our engine number location guide, or run a full check with our registration lookup.
Every Mercedes-Benz VIN is 17 characters long and follows the international ISO 3779 standard, but Mercedes encodes specific information in predictable positions. Understanding the structure helps you interpret your result and know what to confirm separately.
| Position | Contains | Example |
|---|---|---|
| 1–3 | World Manufacturer Identifier (WMI) | WDD = Mercedes-Benz Germany, W1K = Mercedes-Benz passenger cars [PATTERN DATA] |
| 4–8 | Vehicle Descriptor Section (model series, body type, restraint system) | Identifies W205, W213, W167 etc. [PATTERN DATA] |
| 9 | Check digit (mathematical validation) | Used to verify VIN authenticity [PATTERN DATA] |
| 10 | Model year | Letter or digit encoding the model year [PATTERN DATA] |
| 11 | Assembly plant | Sindelfingen, Bremen, Rastatt, Tuscaloosa etc. [PATTERN DATA] |
| 12–17 | Production sequence number | Unique serial for your specific vehicle [PATTERN DATA] |
What the VIN cannot tell you: Unlike some manufacturers, Mercedes-Benz does not encode the exact engine code directly in the VIN. The engine is specified on the vehicle's data card (build sheet) using option codes. Our decoder cross-references the model series and production period against our fitment database to show the most probable engine family, but for absolute confirmation — particularly when sourcing a replacement engine — you should verify using the engine number stamp or request the data card from a Mercedes-Benz dealer [PATTERN DATA].
This distinction matters when ordering parts or a replacement engine. The difference between an OM651 and an OM654 in the same C-Class badge is significant for compatibility — see our OM vs M Series identification guide for how to confirm which you have.
Your result shows five fields. Here's how to read each one:
| Field | What It Tells You | What To Do With It |
|---|---|---|
| Model Series | Your chassis code (W205, W213, W167 etc.) and the model name it corresponds to | Use it to navigate to the correct model page on this site for engine-specific guidance |
| Body Type | Saloon, estate, coupe, SUV etc. derived from positions 4–8 | Confirms you're looking at the right variant — important for parts compatibility |
| Engine Family | The engine code most commonly fitted to your model series and production period | Use as a starting point. Confirm via engine number stamp or data card before ordering parts |
| Production Plant | Where your vehicle was assembled | Useful for import history checks and understanding specification differences |
| Model Year | The model year encoded in position 10 (may differ from registration year) | Important for identifying mid-production revisions and TSB applicability |
For badges that span two engines across a production run — such as certain C-Class W205 variants that moved from OM651 to OM654 mid-cycle — the decoder will flag this and direct you to confirm via the engine number. This is the same approach used in our full Fitment Matrix.
WMI and model series decoding data is cross-referenced against Mercedes-Benz published build structure documentation and independent parts supplier catalogues [PATTERN DATA]. Engine-to-model fitment data is drawn from the same 24,650-vehicle 2025 UK enquiry dataset that powers every other page on this site — full methodology on our Data Methodology page [EM-VERIFIED].
Where our fitment confidence is below 95% for a given model-year combination, we state this explicitly in the result and recommend the physical engine number check as the definitive confirmation. We never guess silently — honest uncertainty is a core editorial principle. See our Editorial Standards for the full commitment.
This tool is one of eight free tools on the site. It does not require an email address, does not store your VIN, and does not gate the result behind any signup. The VIN you enter is processed locally and never transmitted to a third party [PATTERN DATA].
Yes, completely free with no email required to see your result. The tool processes your VIN instantly and shows the full decode without any signup or payment gate.
Not directly. Mercedes-Benz encodes the model series and body type in the VIN but not the specific engine code. The engine is identified via the data card (build sheet). Our decoder shows the most probable engine family based on model and production period, then directs you to confirm via the engine number stamp.
The VIN appears in three locations: on a metal plate at the base of the windscreen (driver's side), on a sticker in the driver's door jamb, and on your V5C registration document. All three should match exactly.
If the decoder cannot parse your VIN, check that all 17 characters are entered correctly with no spaces. If it still fails, use our Fitment Matrix to identify your engine manually by model and build year, or check the engine number stamp directly using our Engine Number Location guide.
Whatever your VIN reveals, the next step is confirming engine compatibility or comparing replacement quotes from our vetted specialist network.
Engine Compatibility Checker Repair vs Replace CalculatorMercedesEngines.uk is part of the Engine Finders network. Independent editorial content; not affiliated with Mercedes-Benz AG or any manufacturer franchise. Read our Editorial Standards and Data Verification methodology.