Audi VIN Check
Every Audi vehicle manufactured for the North American market since 1981 carries a standardized 17-character Vehicle Identification Number (VIN) regulated by NHTSA under FMVSS 565 and ISO 3779. This code is unique to each vehicle and encodes the country of assembly, manufacturer identity, model attributes, engine configuration, model year, assembly plant, and production sequence number. Decoding a Audi VIN helps you verify a used-vehicle listing, confirm the correct parts and service history, check for open recalls, and detect potential title fraud.
Audi uses manufacturer-specific encoding in the Vehicle Descriptor Section (positions 4–8). Position 4 typically identifies the model line — for example, popular Audi models include A4, A6, Q5, Q7, Q8, e-tron, RS models. Position 8 usually encodes the engine type. Position 9 is a mathematical check digit that detects typos and many forms of VIN tampering. Position 10 encodes the model year, and position 11 identifies the assembly plant. WAU and WA1 are the primary Audi WMIs; TRU indicates the Győr, Hungary engine and assembly plant.
Audi's quattro all-wheel-drive system revolutionized rally racing in the 1980s. The brand sits in the Volkswagen Group premium tier alongside Porsche and competes with BMW and Mercedes-Benz.
How to Read a Audi VIN
To read a Audi VIN manually, start with the WMI (positions 1–3) to confirm the manufacturer and country of origin. For Audi, the WMI prefixes in our database include WAU, WA1, TRU and others depending on where the vehicle was built.
Position 4 encodes the Vehicle Line. Common values include A=Compact car, B=Mid-size sedan, C=Full-size, D=Wagon, E=Electric, F=SUV / CUV. Position 5 encodes trim or series level. Position 8 encodes the engine (A=1.4L TSI, B=1.8L TSI, C=2.0L TSI, D=3.0L V6 TDI, E=3.6L VR6). Position 9 is the check digit — our decoder validates it automatically using the ISO 3779 weighted-sum algorithm. Position 10 is the model year (see our year-code reference), and position 11 is the assembly plant (A=Ingolstadt, Germany, B=Brussels, Belgium, C=Chattanooga, TN, D=Dresden, Germany, E=Emden, Germany). Positions 12–17 are the unique serial number for that vehicle.
Because Audi may change VDS encoding between model years, treat decoded attributes as informational. Always confirm critical details (engine, trim, drivetrain) against the window sticker, build sheet, or dealer records.
Audi VIN Position Breakdown
| Pos. | Section | Standard Meaning | Audi Notes |
|---|---|---|---|
| 1 | WMI | Country of manufacture | ISO 3779 region code — e.g. 1=USA, J=Japan, W=Germany |
| 2 | WMI | Manufacturer | Combined with pos. 1–3 identifies Audi |
| 3 | WMI | Vehicle type | Audi WMI codes: WAU (Germany), WA1 (Germany), TRU (Hungary) |
| 4 | VDS | Vehicle Line | A=Compact car; B=Mid-size sedan; C=Full-size; D=Wagon; E=Electric; F=SUV / CUV; G=Sports car; H=Hatchback |
| 5 | VDS | Series / trim | Trim, series, or drive configuration |
| 6 | VDS | Body / restraint | Body style and/or restraint system (varies by year) |
| 7 | VDS | Restraint / body | Supplemental restraint or body attribute |
| 8 | VDS | Engine | A=1.4L TSI; B=1.8L TSI; C=2.0L TSI; D=3.0L V6 TDI; E=3.6L VR6; F=4.0L V8 |
| 9 | Check digit | Validation | ISO 3779 weighted-sum check — detects typos and tampering |
| 10 | VIS | Model year | Standard 30-year letter/digit cycle (1980–2039) |
| 11 | VIS | Assembly plant | A=Ingolstadt, Germany; B=Brussels, Belgium; C=Chattanooga, TN; D=Dresden, Germany; E=Emden, Germany; F=Fulda, Germany |
| 12–17 | VIS | Serial number | Unique production sequence at the assembly plant |
Frequently Asked Questions — Audi VIN
Where is the VIN on a Audi?
Driver's side dashboard, door jamb, and Audi service portal.
What does WAU mean in a Audi VIN?
The WMI prefix WAU identifies a Audi vehicle. WAU and WA1 are the primary Audi WMIs; TRU indicates the Győr, Hungary engine and assembly plant.
How do I decode a Audi VIN for free?
Enter your 17-character Audi VIN in the decoder above. Our engine validates the check digit, reads the model year, identifies the assembly plant, and applies Audi-specific rules for positions 4–8 where available.
Can a Audi VIN tell me the engine type?
For most Audi models, position 8 encodes the engine family or displacement. Our decoder maps this using manufacturer data. Popular models like A4 and A6 are supported.
What plants build Audi vehicles?
Position 11 is the assembly plant code. Audi operates factories worldwide — our decoder translates the plant letter to a city and country. WAU and WA1 are the primary Audi WMIs; TRU indicates the Győr, Hungary engine and assembly plant.
How do I verify a Audi VIN is genuine?
Use our decoder to validate the check digit at position 9. A valid Audi VIN like WAUZZZ8V19A123456 must pass the ISO 3779 check-digit test. Also compare the dashboard VIN with the door jamb label — mismatches may indicate tampering.
Does the model year in a Audi VIN match the calendar year?
Not always. Position 10 encodes the model year using the standard 30-year ISO cycle. A vehicle assembled in late 2024 may carry a 2025 model-year code. Always treat position 10 as the manufacturer's designated model year.
Which Audi models can I decode?
Our decoder supports all Audi models with standard 17-character VINs since 1981, including A4, A6, Q5, Q7, Q8, e-tron, RS models. WMI lookup works for every Audi VIN; detailed trim and engine data is available where manufacturer encoding is documented.