Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2009 Audi S6FACTORY OEM SERVICE PROCEDURE
Engine Data
| Code letters | BXA | |
|---|---|---|
| Displacement | ltr. | 5.204 |
| Output | kW at 1/rpm | 320/6800 |
| Torque | Nm at rpm | 540/3500 |
| Bore | dia. mm | 84.5 |
| Stroke | mm | 92.8 |
| Compression ratio | 12.5 | |
| RON | 98 1) | |
| Fuel injection and ignition system | Bosch Motronic | |
| Ignition sequence | 1-6-5-10-2-7-3-8-4-9 | |
| Exhaust gas recirculation | no | |
| Turbocharger | no | |
| Knock control | yes | |
| Variable valve timing | yes | |
| Variable intake manifold | yes | |
| Secondary air injection (AIR) system | yes | |
| 1) Super unleaded RON 95 is permissible, although with reduced power. | ||
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.