2009 Audi S4: What's New, Specs & Features
Last updated August 4, 2026
The biggest change for the 2009 Audi S4 is a smaller U.S. lineup: the sedan and Avant are dropped, leaving only the Cabriolet. The remaining V8 convertible carries over without meaningful mechanical or equipment updates.
About the 2009 Audi S4
B7 generation (A4-based S4 Cabriolet), final U.S. model year; only the Cabriolet is sold for 2009 before the all-new B8 S4 sedan arrives for 2010 and Audi’s open-top S model shifts to the S5 Cabriolet.
In the U.S. for 2009, the S4 is essentially Audi’s four-seat performance convertible. Audi positions it as a faster, more serious take on the A4 Cabriolet, pairing a naturally aspirated V8 and standard all-wheel drive with a quieter acoustic soft top and a richer interior. The appeal is open-air driving without giving up bad-weather traction, everyday comfort, or the polished cabin quality Audi was known for at the time.
Audi positioned the 2009 S4 Cabriolet as a performance-focused luxury convertible with strong bad-weather traction. Its defining features include a 340-hp 4.2-liter V8, quattro all-wheel drive, an insulated power soft top, bi-xenon headlights, leather upholstery, and heated sport seats.
What changed, by category
2009 Audi S4 specs and features by trim
| Feature | |
|---|---|
| Engine | V8, 4.2 Liter |
| Transmission | Auto, 6-Spd OD Tiptronic |
| Drivetrain | AWD |
| Fuel Type | Gas |
| MPG City | 13 mpg |
| MPG Highway | 19 mpg |
| Horsepower | 340 hp |
| Torque | 302 lb-ft |
| Seats | 5 |
| Doors | 2 |
| Alarm System | |
| Alloy Wheels | |
| Bluetooth | |
| Navigation System | |
| Premium Audio | |
| Satellite Radio | |
| Dual-Zone Climate Control | |
| Heated Front Seats | |
| Leather Seats | |
Frequently asked questions
What changed on the 2009 Audi S4 compared with the 2008 model?
The U.S. lineup was reduced to the S4 Cabriolet for 2009, with the sedan and Avant dropped. The Cabriolet received no meaningful mechanical, styling, safety, or technology updates.
Was the 2009 Audi S4 sold as a sedan or wagon in the U.S.?
No. The 2009 S4 was sold in the U.S. only as a Cabriolet; the sedan and Avant wagon were temporarily dropped while Audi prepared the next generation.
Did the 2009 Audi S4 get a new engine?
No. The 2009 S4 Cabriolet kept its 340-hp 4.2-liter V8, along with quattro all-wheel drive and either a six-speed manual or six-speed Tiptronic automatic transmission.
Is the 2009 Audi S4 a redesigned model?
No. The 2009 model is the final U.S. year of the older B7-generation S4 Cabriolet, not a redesign. The next-generation S4 sedan arrived for 2010.
Was 2009 the final U.S. year for the V8 S4 Cabriolet?
Yes. The 2009 model was the final U.S. S4 Cabriolet based on the older A4 platform and powered by the 4.2-liter V8; Audi's later open-top S model became the S5 Cabriolet.