The 4.0-liter twin-turbo V8 Audi DWKA has been produced since 2023 and is installed on the Audi S8. It has direct injection and two turbochargers (BorgWarner B03G) and produces 571 hp and 800 Nm.
EA825 family: CXYA, DCUE, DJPB, DWKA, DWLA, DWNA, DWNB, DWPA, DYGA, DYGB.
Specifications
| Production years | since 2023 |
| Displacement, cc | 3996 |
| Fuel system | direct injection |
| Power output, hp | 571 |
| Torque output, Nm | 800 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 86 |
| Compression ratio | 10.1 |
| Features | AVS |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | at intake and exhaust |
| Turbocharging | two BorgWarner B03G |
| Recommended engine oil | 0W-40 |
| Engine oil capacity, liter | 9.5 |
| Fuel type | petrol |
| Euro standards | EURO 6e |
| Fuel consumption, L/100 km (for Audi S8 2024) — city — highway — combined |
15.9 8.5 11.3 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 231 |
The engine was installed on:
- Audi S8 D5 (4N) since 2023.
Disadvantages of the Audi DWKA engine
- A fairly reliable engine unless it has been tuned;
- Watch fuel quality: there are already cases of pistons destroyed by detonation, and the plasma-sprayed cylinder walls suffer from bad petrol;
- Change the oil as often as possible: turbocharger life depends heavily on it;
- Components of the 48-volt mild hybrid system cause a lot of trouble.
Frequently asked questions about the Audi DWKA
How much power does the Audi DWKA make?
The Audi DWKA develops 571 hp and 800 Nm of torque.
How much oil does the Audi DWKA take and which one?
Engine oil capacity: 9.5 liters. Recommended oil: 0W-40.
Does the Audi DWKA have a timing belt or chain?
The Audi DWKA uses a timing chain.
Is the Audi DWKA turbocharged?
Yes, the Audi DWKA is turbocharged (two BorgWarner B03G).
Does the Audi DWKA need valve clearance adjustment?
No, the Audi DWKA has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Audi DWKA last?
The typical lifespan of the Audi DWKA is ~300 000 km with proper maintenance.
What is the fuel consumption of the Audi DWKA?
Audi S8 2024: city 15.9, highway 8.5, combined 11.3 L/100 km.
What cars was the Audi DWKA installed on?
Audi S8 D5 (4N) since 2023.
What are the common problems of the Audi DWKA?
A fairly reliable engine unless it has been tuned. Watch fuel quality: there are already cases of pistons destroyed by detonation, and the plasma-sprayed cylinder walls suffer from bad petrol. All known problems.
