Factory build sheet
1999 Audi A4 Quattro
Build WAUGB28D-X · 1.8L 4cyl · All-wheel drive · Wagon
VIN positions 1 through 8 read WAUGB28D and position 10 reads X. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every A4 whose VIN starts WAUGB28D and carries X in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 58 of them.
- Decoded Jul 7, 2026
- 58 known VINs
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
- 1.8 L
- Cylinders
- 4
- Engine manufacturer
- Audi
- Horsepower
- 150 hp
- Fuel type
- Gasoline
Drivetrain
- Drive type
- All-wheel drive
Body & chassis
- Body class
- Wagon
- NHTSA body type
- PASSENGER CAR
- Doors
- 4
- Series
- Avant
- 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.
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 | GB28D | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | X | Model year — 1999 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
58 vehicles carry this build
Every VIN we have decoded to WAUGB28D-X shares the specification above.
- 58 Known VINs
- WAUGB28D 5XA332951
- WAUGB28D 3XA331653
- WAUGB28D XXA082834
- WAUGB28D 0XA051849
- WAUGB28D 5XA033265
- WAUGB28D 6XA302910
- WAUGB28D 7XA012093
- WAUGB28D 5XA039194
- WAUGB28D 2XA006427
- WAUGB28D XXA303896
- WAUGB28D 8XA313746
- WAUGB28D 8XA287861
- WAUGB28D 9XA083800
- WAUGB28D 3XA309975
- WAUGB28D 0XA042200
- WAUGB28D XXA065760
- WAUGB28D 3XA005075
- WAUGB28D 2XA053117
- WAUGB28D 1XA331330
- WAUGB28D 4XA332911
- WAUGB28D 1XA297261
- WAUGB28D 7XA009047
- WAUGB28D 0XA203693
- WAUGB28D 6XA073340
- WAUGB28D 7XA076859
- WAUGB28D 1XA309442
- WAUGB28D 3XA084974
- WAUGB28D 1XA327360
- WAUGB28D 1XA018276
- WAUGB28D 8XA011504
- WAUGB28D 4XA082120
- WAUGB28D XXA332976
- WAUGB28D 3XA262656
- WAUGB28D 3XA309541
- WAUGB28D 2XA321972
- WAUGB28D 8XA077499
- WAUGB28D 7XA286412
- WAUGB28D 3XA331054
- WAUGB28D 1XA268651
- WAUGB28D 3XA287749
- WAUGB28D 8XA328361
- WAUGB28D 1XA305004
- WAUGB28D 2XA013622
- WAUGB28D 0XA081725
- WAUGB28D 8XA086378
- WAUGB28D 6XA263106
- WAUGB28D 8XA312371
- WAUGB28D 9XA326487
- WAUGB28D 5XA067285
- WAUGB28D 6XA031590
- WAUGB28D 5XA022220
- WAUGB28D 6XA060068
- WAUGB28D 8XA328179
- WAUGB28D 1XA260212
- WAUGB28D XXA059876
- WAUGB28D 3XA229916
- WAUGB28D 0XA050572
- WAUGB28D XXA312968
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.
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 58 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.