The short answer is: it depends on the model year. Audi has used both supercharging and turbocharging in the S5 across its generations, with turbochargers dominant in the latest versions and a belt-driven supercharger appearing in the mid‑2010s, while the earliest S5s used a naturally aspirated engine.
Turbo vs. supercharging across generations
Below is a generation-by-generation snapshot of what powers the Audi S5, noting how the forced-induction technology shifted over time and across markets.
First-generation S5 (B8/B8.0, 2007–2012): powered by a naturally aspirated 4.2-liter V8 (no turbo or supercharger).
Second-generation S5 (B8.5, 2013–2016): switched to a 3.0-liter V6 with a belt-driven supercharger (mechanical supercharging).
Current-generation S5 (C8/B9, 2017–present): uses a 3.0-liter V6 with turbocharging (TFSI), paired with mild-hybrid tech in many markets.
Conclusion for the list: Audi moved from a naturally aspirated V8 to a supercharged V6 in the mid-2010s, and today’s S5s are turbocharged V6 models, with regional variations in tech and tuning.
Notes on market differences and what to verify in a used S5
Regional and model-year differences mean a specific S5 can differ in its propulsion system. When shopping, verify the exact engine type for the car you’re eyeing by checking the owner’s manual, VIN, or the engine badge.
What to verify when shopping
- Look for indications of turbocharging (TFSI) vs. supercharging (often labeled as “Supercharged” in the badge or documentation) for the model year you’re considering.
- Confirm the generation and year, as the engine technology changes between generations and markets.
- Be aware that modern S5s often include a 48V mild-hybrid system, which can affect maintenance and warranty considerations.
In practice, if you’re buying a newer Audi S5, you’re most likely getting a turbocharged 3.0-liter V6. The notable exception is the mid-2010s window (about 2013–2016 in many regions) when the S5 used a belt-driven supercharged 3.0-liter V6. The earliest S5s used a naturally aspirated V8, which is not turbocharged or supercharged.
Summary
Engine technology for the Audi S5 has evolved over time. Early models used a naturally aspirated V8, mid-2010s S5s employed a belt-driven supercharged 3.0-liter V6, and today’s S5 lineup relies on turbocharged 3.0-liter V6 engines with mild-hybrid systems. If you’re evaluating a specific car, confirm the engine type for that model year and market to understand whether it’s turbocharged or supercharged.