The 5.2-liter V10 Audi BSM was produced from 2006 to 2010 and was installed on the Audi S8. This naturally aspirated FSI engine with direct injection produces 450 hp and 540 Nm.
V10 EA824 family: BSM, BXA, BUJ, BUH.
Specifications
| Production years | 2006-2010 |
| Displacement, cc | 5204 |
| Fuel system | direct injection |
| Power output, hp | 450 |
| Torque output, Nm | 540 |
| Cylinder block | aluminum V10 |
| Block head | aluminum 40v |
| Cylinder bore, mm | 84.5 |
| Piston stroke, mm | 92.8 |
| Compression ratio | 12.5 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | at intake and exhaust |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 9.8 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Audi S8 2009) — city — highway — combined |
19.5 9.5 13.2 |
| Engine lifespan, km | ~200 000 |
| Weight, kg | 262 |
The engine was installed on:
- Audi S8 D3 (4E) in 2006 – 2010.
Disadvantages of the Audi BSM engine
- The aluminum block without liners does not tolerate poor fuel and oil;
- Parts of the intake swirl flaps can break off and fall into the cylinders;
- Like all direct-injection engines, it is prone to carbon deposits on the intake valves;
- At about 150,000 km the timing chains often need replacing, which is very expensive;
- Weak points also include ignition coils, the catalytic converter and the high-pressure fuel pumps.
Frequently asked questions about the Audi BSM
How much power does the Audi BSM make?
The Audi BSM develops 450 hp and 540 Nm of torque.
How much oil does the Audi BSM take and which one?
Engine oil capacity: 9.8 liters. Recommended oil: 5W-30.
Does the Audi BSM have a timing belt or chain?
The Audi BSM uses a timing chain.
Is the Audi BSM turbocharged?
No, the Audi BSM is naturally aspirated.
Does the Audi BSM need valve clearance adjustment?
No, the Audi BSM has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Audi BSM last?
The typical lifespan of the Audi BSM is ~200 000 km with proper maintenance.
What is the fuel consumption of the Audi BSM?
Audi S8 2009: city 19.5, highway 9.5, combined 13.2 L/100 km.
What cars was the Audi BSM installed on?
Audi S8 D3 (4E) in 2006 - 2010.
What are the common problems of the Audi BSM?
The aluminum block without liners does not tolerate poor fuel and oil. Parts of the intake swirl flaps can break off and fall into the cylinders. All known problems.
