The 5.2-liter V10 Audi BUJ was produced from 2008 to 2010 and was installed on the Audi R8. This naturally aspirated FSI engine with direct injection produces 525 hp and 530 Nm.
V10 EA824 family: BSM, BXA, BUJ, BUH.
Specifications
| Production years | 2008-2010 |
| Displacement, cc | 5204 |
| Fuel system | direct injection |
| Power output, hp | 525 |
| Torque output, Nm | 530 |
| Cylinder block | aluminum V10 |
| Block head | aluminum 40v |
| Cylinder bore, mm | 84.5 |
| Piston stroke, mm | 92.8 |
| Compression ratio | 12.5 |
| Features | dry sump |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | on all shafts |
| 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 R8 5.2 FSI 2009) — city — highway — combined |
22.5 10.2 14.7 |
| Engine lifespan, km | ~200 000 |
| Weight, kg | 258 |
The engine was installed on:
- Audi R8 1 (42) in 2008 – 2010.
Disadvantages of the Audi BUJ 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 BUJ
How much power does the Audi BUJ make?
The Audi BUJ develops 525 hp and 530 Nm of torque.
How much oil does the Audi BUJ take and which one?
Engine oil capacity: 9.8 liters. Recommended oil: 5W-30.
Does the Audi BUJ have a timing belt or chain?
The Audi BUJ uses a timing chain.
Is the Audi BUJ turbocharged?
No, the Audi BUJ is naturally aspirated.
Does the Audi BUJ need valve clearance adjustment?
No, the Audi BUJ has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Audi BUJ last?
The typical lifespan of the Audi BUJ is ~200 000 km with proper maintenance.
What is the fuel consumption of the Audi BUJ?
Audi R8 5.2 FSI 2009: city 22.5, highway 10.2, combined 14.7 L/100 km.
What cars was the Audi BUJ installed on?
Audi R8 1 (42) in 2008 - 2010.
What are the common problems of the Audi BUJ?
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.
