The 2025 Audi S4 window sticker reads 24 mpg combined (20 city, 29 highway) for the 3L 6-cyl. NHTSA gives the 2016 S4 5 stars overall, and a used 2018 asks about $19,950 today.
The Audi S4 window sticker — build, options & years
The Audi S4 ran from 1992–2026 across 6 generations (1993, 2002, 2005, 2008, 2011–2014, 2020–2023).
For year-by-year recalls, MPG and safety, see the full Audi S4 VIN decoder.
What the Audi S4 sticker says about fuel
EPA figures for the 2025 S4:
The label also prints an estimated $3,200 a year in fuel at 15,000 miles, and 496 g/mi of CO₂. In its EPA class (Compact Cars, 2025) the best S4 version ranks #20 of 23 on combined MPG (the class best is 50 mpg).
How the S4's sticker figure changed
Combined MPG by model year, 1992 to 2025:
Combined went from 18 mpg in 1992 to 24 in 2025. EPA revised its testing method in 2008, so stickers printed before and after that year are not directly comparable.
Safety ratings printed on the label
NHTSA results for the 2016 S4:
Against other models: safest cars ranking.
The S4 sticker against its rivals
On combined MPG the S4 trails all 1: its most efficient 2025 version reads 24 mpg, the Acura ILX 28.
| Model | EPA year | Best combined | NHTSA overall |
|---|---|---|---|
| Audi S4 | 2025 | 5★ | |
| Acura ILX | 2022 | 5★ |
What a used S4 sells for now
Median asking price by model year, from 30 live US listings:
| Model year | Median asking price | Sample |
|---|---|---|
| 2018 | 12 listings | |
| 2014 | 8 listings | |
| 2007 | 10 listings |
A 2018 S4 asks a median $19,950 today, a 2007 about $9,900. Full breakdown on the Audi S4 value page.
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Recalls, MPG and safety year by year: Audi S4 VIN decoder.
S4 window sticker — every model year
ForCar has built 17 S4 window stickers from VINs so far, opened 40 times. The most requested model years are 2022, 2018 and 2016.
Any S4 from 1992–2026: the VIN carries the model year, so there is no year to pick. Other Audi models: Audi window stickers.
Other Audi window stickers
| Model | Years covered | Class | Best EPA figure |
|---|---|---|---|
| Audi R8 | Two Seaters | 18 mpg | |
| Audi Q5 | Small Sport Utility Vehicle 4WD | 27 mpg | |
| Audi A4 | Compact Cars | 31 mpg | |
| Audi Q3 | Small Sport Utility Vehicle 4WD | 26 mpg | |
| Audi Q7 | Standard Sport Utility Vehicle 4WD | 22 mpg | |
| Audi A5 | Subcompact Cars | 30 mpg |
Where to find the VIN on a Audi S4
- WindshieldLower-left corner, driver's side, readable from outside without opening anything.
- Door jambOn the driver's door frame of every S4, next to the tire-pressure and build-date plate.
- DocumentsRegistration, title and insurance card — on a Audi S4 all three must show the same number.
Window sticker — frequently asked
What MPG does the Audi S4 window sticker show?
The 2025 label shows up to 24 mpg combined, #20 of 23 in its EPA class (Compact Cars). EPA puts the fuel bill at about $3,200 a year.
What safety rating is on the Audi S4 sticker?
5 stars overall from NHTSA for the 2016 model, by test: frontal crash 5, side crash 5, rollover 5.
Does the S4 sticker show better MPG than the Acura ILX?
No: the most efficient 2025 S4 reads 24 mpg combined, the 2022 Acura ILX 28.
Which Audi S4 years do people look up most?
2022, with 2 of the 17 S4 window stickers built on ForCar, followed by 2018 and 2016.
What is a used Audi S4 worth now?
A 2018 asks a median $19,950 and a 2007 about $9,900, across 30 live listings. More on the Audi S4 value page.
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