Factory build sheet
2006 Audi A4 S Line Quattro
Build WAUEH78E-6 · 3.1L 6cyl · All-wheel drive · Sedan
VIN positions 1 through 8 read WAUEH78E and position 10 reads 6. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every A4 whose VIN starts WAUEH78E and carries 6 in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 34 of them.
- Decoded Jul 7, 2026
- 34 known VINs
- 2 listed for sale now
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
- 3.1 L
- Cylinders
- 6
- Engine manufacturer
- Audi
- Horsepower
- 255 hp
- Fuel type
- Gasoline
Drivetrain
- Drive type
- All-wheel drive
Body & chassis
- Body class
- Sedan/Saloon
- NHTSA body type
- PASSENGER CAR
- Doors
- 4
- 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.
The same build, other model years
Audi used the VIN pattern WAUEH78E for 3 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 | EH78E | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | 6 | Model year — 2006 |
| 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 2006 Audi A4 as a whole rather than this build alone.
Rollover
★★★★ ★ 4 / 5
4 recall campaigns are recorded for the 2006 A4. Recalls are issued per VIN range — check the VIN of the car you are looking at, not the model.
34 vehicles carry this build
Every VIN we have decoded to WAUEH78E-6 shares the specification above.
- 34 Known VINs
- 2 Listed for sale now
- WAUEH78E 76A255459
- WAUEH78E 96A247315
- WAUEH78E 86A200647
- WAUEH78E 56A231774
- WAUEH78E 86A220025
- WAUEH78E 06A223971
- WAUEH78E 66A199191
- WAUEH78E X6A136823
- WAUEH78E 76A183422
- WAUEH78E 96A122430
- WAUEH78E 66A153005
- WAUEH78E 06A234579
- WAUEH78E X6A125286
- WAUEH78E 56A121274
- WAUEH78E 66A175571
- WAUEH78E X6A284051
- WAUEH78E 46A266483
- WAUEH78E 46A274096
- WAUEH78E 86A116862
- WAUEH78E 86A227234
- WAUEH78E 16A137374
- WAUEH78E 96A195023
- WAUEH78E 26A204743
- WAUEH78E 86A185972
- WAUEH78E 26A227326
- WAUEH78E 46A126337
- WAUEH78E 36A116395
- WAUEH78E 46A195074
- WAUEH78E 66A194864
- WAUEH78E 06A256629
- WAUEH78E 96A207672
- WAUEH78E 66A180057
- WAUEH78E 66A148953
- WAUEH78E X6A287466
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 34 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.