The 4.0-liter bi-turbo engine Audi DCUE was produced by the German concern from 2020 to 2022 and was installed on the SQ7 and SQ8 crossovers until it gave way to the new DWRB unit. A more powerful modification of this engine for the Audi RS Q8 has its own DHUB index.
The EA825 series includes: CXYA, DCUE.
Specifications
| Production years | 2020-2022 |
| Displacement, cc | 3996 |
| Fuel system | direct injection |
| Power output, hp | 507 |
| Torque output, Nm | 770 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 86 |
| Compression ratio | 11.0 |
| Features | AVS |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | on all shafts |
| Turbocharging | two BorgWarner B03G |
| Recommended engine oil | 0W-20 |
| Engine oil capacity, liter | 9.5 |
| Fuel type | petrol |
| Euro standards | EURO 6d-TEMP |
| Fuel consumption, L/100 km (for Audi SQ8 2021) — city — highway — combined |
13.8 6.8 11.8 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 231 |
The engine was installed on:
- Audi SQ7 2 (4M) in 2020 – 2022;
- Audi SQ8 1 (4M) in 2020 – 2022.
Disadvantages of the Audi DCUE engine
- Despite the complexity of the design, this is a reliable turbo engine with a good service life;
- However, it is important to find a unit that has not been subjected to serious tuning, and there are many of them;
- And keep an eye on the quality of gasoline; there are already cases of piston destruction from detonation;
- Plasma spraying on the cylinder walls also really doesn’t like bad fuel;
- Saving on oil and oil change intervals greatly reduces the life of turbines;
- Other problems are related to the formation of carbon deposits and glitches of the start-stop system.
