Audi S4 B9 Facelift — Wheel Fitment & Specs
Overview
The Audi S4 is the high-performance variant of Audi's compact executive car, the Audi A4. The B9 generation, introduced after several evolutions from 1997 onwards, continues this legacy with a turbocharged 3.0-litre V6 TFSI engine. This model has been manufactured at Audi’s plant in Ingolstadt, Germany, and is available as a four-door saloon and five-door Avant (station wagon). The S4 competes directly against the BMW M340i xDrive and Mercedes-Benz C450 AMG/Mercedes-AMG C43 4MATIC. It features Audi's quattro all-wheel drive system, upgraded brakes, firmer suspension, larger wheels, distinctive styling cues, and enhanced performance over its mainstream A4 siblings.
Wheel fitment
| Bolt pattern (PCD) | 5x112 |
| Centre bore | 66.6 mm |
| Bolt / thread | M14x1.5 (bolts) |
| Wheel-bolt torque | 120 Nm |
| Seat type | radius |
| Factory setup | square |
| TPMS | indirect |
Aftermarket wheel sizes — read per position:
| Position | Width | Offset |
|---|---|---|
| Front | 7.5J–8.5J | ET24–ET45 |
As a rule, each extra 1J of width wants roughly +8–10 ET to keep the wheel tucked. The exact offset and any spacer are confirmed by the fit-check.
UK popularity & demand
Based on DfT VEH0124 vehicle-parc data (2025), there are approximately 8,899 Audi S4 on UK roads, placing it in the top 15% of car models by volume across our fitment database. That makes its wheel fitment a high-demand size to keep in stock — one reason we track its exact spec here.
Source: DfT/DVLA licensed-vehicle statistics (VEH0124), matched to the AIWheelTech fitment database.
Engines & drivetrain
| Variant | Engine | Fuel | Power | Drive |
|---|---|---|---|---|
| optional 3.0 TFSI | 3.0L V6 turbocharged engine with mild hybrid system | petrol | 368 hp | Quattro |
| 3.0 TFSI | 3.0L V6 turbocharged engine | petrol | 349 hp | Quattro |
Performance
| Variant | Power | 0–62 mph | Top speed |
|---|---|---|---|
| 3.0 TFSI | 349 hp | 4.7 s | 155 mph |
| optional 3.0 TFSI | 368 hp | 4.5 s | 155 mph |
Dimensions
| Length | 4790 mm |
| Width | 1803 mm |
| Height | 1443 mm |
| Wheelbase | 2692 mm |
| Kerb weight | 1730 kg |
Body styles & production
| Body styles | Saloon, Avant |
| Produced | 1991–2025 |
Trim levels
History & notable variants
The B9 generation of the S4 underwent a facelift in recent years, introducing minor aesthetic changes and technological updates to maintain its competitive edge. Notable for its powerful engine and advanced drivetrain, it has been well-received by automotive critics and enthusiasts alike, though specific awards are not detailed in the reference.
Reliability & owner notes
- Pros: Powerful engine, advanced quattro all-wheel drive system, distinctive styling
- Cons: Higher price point compared to standard A4 models