Factory build sheet
2021 Audi A4 Quattro Premium Plus
Build WAUEABF4-M · 2L 4cyl · All-wheel drive · Sedan
VIN positions 1 through 8 read WAUEABF4 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 WAUEABF4 and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 48 of them.
- Decoded Jul 7, 2026
- 48 known VINs
- 1 listed for sale now
This configuration is identical to 2021 Audi A4 Quattro Premium Plus 2L 4cyl Sedan (3,603 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
- Blind spot warning Standard
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.
The same build, other model years
Audi used the VIN pattern WAUEABF4 for 4 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.
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 | EABF4 | 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.
48 vehicles carry this build
Every VIN we have decoded to WAUEABF4-M shares the specification above.
- 48 Known VINs
- 1 Listed for sale now
- WAUEABF4 8MA015027
- WAUEABF4 0MA086920
- WAUEABF4 7MN008420
- WAUEABF4 3MN015042
- WAUEABF4 5MN003958
- WAUEABF4 6MA058586
- WAUEABF4 1MN007151
- WAUEABF4 XMA066304
- WAUEABF4 8MA062624
- WAUEABF4 4MN003806
- WAUEABF4 5MA012781
- WAUEABF4 9MA030880
- WAUEABF4 2MN003951
- WAUEABF4 3MN011637
- WAUEABF4 2MA021597
- WAUEABF4 7MA085635
- WAUEABF4 9MN004482
- WAUEABF4 XMA079313
- WAUEABF4 4MA058604
- WAUEABF4 8MA040526
- WAUEABF4 XMA032203
- WAUEABF4 7MN012547
- WAUEABF4 2MN003643
- WAUEABF4 5MN010893
- WAUEABF4 XMN006953
- WAUEABF4 1MN012138
- WAUEABF4 5MA003465
- WAUEABF4 2MA077037
- WAUEABF4 4MA029071
- WAUEABF4 8MN003565
- WAUEABF4 8MA019031
- WAUEABF4 4MN003756
- WAUEABF4 5MN005161
- WAUEABF4 2MN003920
- WAUEABF4 8MN008636
- WAUEABF4 4MA086404
- WAUEABF4 2MN015405
- WAUEABF4 0MN013412
- WAUEABF4 9MA040602
- WAUEABF4 0MN001745
- WAUEABF4 0MN003737
- WAUEABF4 3MN006566
- WAUEABF4 5MN004771
- WAUEABF4 1MN005688
- WAUEABF4 XMN004832
- WAUEABF4 1MA062609
- WAUEABF4 3MA086782
- WAUEABF4 9MN006717
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 Prestige 2L 4-cyl · Sedan saloon · AWD 118 vehicles
- 2022 Quattro Premium 2L 4-cyl · Sedan saloon · AWD 1,527 vehicles · $21,995 median
- 2022 Quattro Premium Plus 2L 4-cyl · Sedan saloon · AWD 1,152 vehicles · $24,464 median
- 2022 S Line Quattro Premium 2L 4-cyl · Sedan saloon · AWD 167 vehicles · $24,998 median
- 2022 S Line Quattro Prestige 2L 4-cyl · Sedan saloon · AWD 196 vehicles
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 48 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.