From 2006 to 2010, the company produced the 4.2-liter Audi BVJ or A6 4.2 FSI engine, which was fitted to popular models like the A6 and A8, including the Allroad off-road version. In the rear of the D4, an updated version of this engine with the CDRA index was mounted on the A8 sedans.
The EA824 series includes: AEW, ABZ, BFL, BFM, AXQ, BVJ, CDRA, BAR, CRDB, CEUA.
Specifications
| Production years | 2006-2010 |
| Displacement, cc | 4163 |
| Fuel system | direct injection |
| Power output, hp | 350 |
| Torque output, Nm | 440 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 84.5 |
| Piston stroke, mm | 92.8 |
| Compression ratio | 12.5 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | on the intake and exhaust |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 9.1 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Audi A6 2008) — city — highway — combined |
14.8 7.5 10.2 |
| Engine lifespan, km | ~260 000 |
The engine was installed on:
- Audi A6 C6 (4F) in 2006 – 2010;
- Audi A8 D3 (4E) in 2006 – 2010.
Disadvantages of the Audi BVJ engine
The primary cause of this engine’s frequent oil consumption is cylinder seizures.
Direct injection system malfunctions account for a large portion of engine issues.
Timing chains frequently stretch after 200,000 kilometers, and replacing them is challenging and costly.
Additionally, the plastic intake manifold frequently loses its tightness.
The ignition coils and oil separator are this engine’s weak points.