
Audi S6 C5 — Wheel Fitment & Specs
Overview
The Audi S6 C5 (1999–2003) is a high-performance variant of the Audi A6 executive car, produced by German automaker Audi on the Volkswagen Group C platform series. It was available in saloon and Avant body styles, featuring a 4.2-litre V8 engine with quattro all-wheel drive as standard. Compared to its predecessor, it offered improved performance, emissions compliance, and enhanced suspension tuning for better handling.
Wheel fitment
| Bolt pattern (PCD) | 5x112 |
| Centre bore | 57.1 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 | 8J–9J | ET27–ET42 |
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 1,742 Audi S6 on UK roads, placing it in the top 26% 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 |
|---|---|---|---|---|
| 5.2L V10 FSI (C6) | 5.2L 40v DOHC V10 petrol engine with gasoline direct injection a | petrol | 320 hp | Quattro |
| 4.2L V8 (standard) | 4.2L 40v DOHC V8 petrol engine with variable intake manifold | petrol | 250 hp | Quattro |
| 4.2L V8 (S6 Plus) | 4.2L 32v DOHC V8 petrol engine, high performance version | petrol | 240 hp | Quattro |
| 4.2L V8 (optional) | 4.2L 32v DOHC V8 petrol engine | petrol | 213 hp | Quattro |
| 2.2L turbocharged I5 | 2.2L 20v turbocharged inline-five cylinder petrol engine | petrol | 169 hp | Quattro |
Performance
| Variant | Power | 0–62 mph | Top speed |
|---|---|---|---|
| 2.2L turbocharged I5 | 169 hp | 6.7 s | 149 mph |
| 4.2L V8 (optional) | 213 hp | 5.9 s | 154 mph |
| 4.2L V8 (S6 Plus) | 240 hp | 5.6 s | |
| 4.2L V8 (standard) | 250 hp | 6.7 s | 155 mph |
| 5.2L V10 FSI (C6) | 320 hp | 5.2 s | 155 mph |
Dimensions
| Length | 4892 mm |
| Width | 1803 mm |
| Height | 1435 mm |
| Wheelbase | 2692 mm |
| Kerb weight | 1730 kg |
Body styles & production
| Body styles | Saloon, Avant |
| Produced | 1994–2025 |
Trim levels
History & notable variants
The Audi S6 C5 was introduced in late 1997 alongside the new A6 platform. It featured a more powerful 4.2-litre V8 engine with advanced emission control technology to meet EU3 standards. The model received an upgrade in May 2000, improving power output and emissions compliance. Notably, Audi's high-performance subsidiary quattro GmbH developed the RS6 variant based on this platform from 2002-2004.
Reliability & owner notes
- Pros: Powerful V8 engine, advanced emissions control technology, improved handling
- Cons: Limited production run, high fuel consumption