Factory build sheet
2021 Audi A4 Quattro Premium
Build WAUDABF4-M · 2L 4cyl · All-wheel drive · Sedan
VIN positions 1 through 8 read WAUDABF4 and position 10 reads M. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every A4 whose VIN starts WAUDABF4 and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 27 of them.
- Decoded Jul 7, 2026
- 27 known VINs
- 1 listed for sale now
This configuration is identical to 2021 Audi A4 Quattro Premium 2L 4cyl Sedan (1,104 vehicles). That page carries the full record.
Factory specification
As filed by Audi with NHTSA for this build. Fields the filing does not record are left out entirely — a missing row means no recorded value, not a missing feature.
Engine
- Displacement
- 2 L
- Cylinders
- 4
- Engine model
- 45 TFSI (2.0T)
- Turbocharged
- Yes
- Horsepower
- 261 hp
- Fuel type
- Gasoline
Drivetrain
- Drive type
- All-wheel drive
- Transmission
- Automatic
- Forward speeds
- 7
Body & chassis
- Body class
- Sedan/Saloon
- NHTSA body type
- PASSENGER CAR
- Doors
- 4
- Seats
- 5
- Seat rows
- 2
- Manufacturer
- AUDI AG
Weight rating
- GVWR class
- Class 1
- GVWR
- 6,000 lb or less
Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.
Driver assistance, as built
- Forward collision warning Standard
- Crash imminent braking Standard
- Lane departure warning Standard
- Blind spot warning Optional
Systems the filing does not record are not listed above. Check the window sticker of the exact car before you rely on any single feature.
How this VIN pattern is read
A 17-character VIN carries two kinds of information: what was built, and which one it is. This page is the first kind — the nine highlighted positions.
| Positions | Characters | What they encode |
|---|---|---|
| 1–3 | WAU | AUDI AG · World manufacturer identifier |
| 4–8 | DABF4 | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | M | Model year — 2021 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
NHTSA safety ratings
Crash-test results are published per model year and body style, so they cover the 2021 Audi A4 as a whole rather than this build alone.
Overall
★★★★★ 5 / 5
Frontal crash
★★★★ ★ 4 / 5
Side crash
★★★★★ 5 / 5
Rollover
★★★★★ 5 / 5
4 recall campaigns are recorded for the 2021 A4. Recalls are issued per VIN range — check the VIN of the car you are looking at, not the model.
27 vehicles carry this build
Every VIN we have decoded to WAUDABF4-M shares the specification above.
- 27 Known VINs
- 1 Listed for sale now
- WAUDABF4 9MN011248
- WAUDABF4 6MA027916
- WAUDABF4 7MA010090
- WAUDABF4 4MN001386
- WAUDABF4 2MA021966
- WAUDABF4 8MN003674
- WAUDABF4 3MA029185
- WAUDABF4 3MA055933
- WAUDABF4 4MN011058
- WAUDABF4 3MA060470
- WAUDABF4 3MA015299
- WAUDABF4 4MA022651
- WAUDABF4 7MA060164
- WAUDABF4 9MA022600
- WAUDABF4 4MA027879
- WAUDABF4 1MA055803
- WAUDABF4 1MN003872
- WAUDABF4 XMN003773
- WAUDABF4 3MA049162
- WAUDABF4 4MA060378
- WAUDABF4 8MN006008
- WAUDABF4 0MA055825
- WAUDABF4 5MN005365
- WAUDABF4 3MN010810
- WAUDABF4 1MA027919
- WAUDABF4 8MA022328
- WAUDABF4 5MA015515
Neighboring configurations
Other factory configurations of the A4, each with its own build sheet. The set is fixed by the VIN patterns themselves, so it does not shuffle as prices or inventory move.
- 2021 Quattro Premium Plus 2L 4-cyl · Sedan saloon · AWD 3,604 vehicles · $24,598 median
- 2021 Quattro Premium Plus 2L 4-cyl · Sedan saloon · AWD 48 vehicles
- 2021 Quattro Prestige 2L 4-cyl · Sedan saloon · AWD 118 vehicles
- 2022 Quattro Premium Plus 2L 4-cyl · Sedan saloon · AWD 1,152 vehicles · $24,464 median
- 2022 S Line Quattro Premium Plus 2L 4-cyl · Sedan saloon · AWD 2,985 vehicles · $24,484 median
Keep going
Where this data comes from
Specification fields are decoded from the manufacturer's filings in the NHTSA vPIC database, keyed on VIN positions 1–8 and 10. We publish the filed values as they stand and leave out anything the filing does not record.
Vehicle counts come from the 27 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.