The 4.0-liter bi-turbo diesel engine Audi DHVA was produced only from 2019 to 2020 and was installed on particularly powerful modifications of the popular Audi SQ8 4.0 TDI crossover. A similar engine was installed on the Audi SQ7 TDI under the designation DMVA and on the Audi A8 60 TDI as CVXB.
The EA898 series also includes: AKF, ASE, BTR, CKDA, CCGA, CZAC, DHVA.
Specifications
| Production years | 2019-2020 |
| Displacement, cc | 3956 |
| Fuel system | Common Rail |
| Power output, hp | 435 |
| Torque output, Nm | 900 |
| Cylinder block | cast iron V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 83 |
| Piston stroke, mm | 91.4 |
| Compression ratio | 16.0 |
| Features | AVS, MHEV |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | Bi-Turbo + EAV |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 9.1 |
| Fuel type | diesel |
| Euro standards | EURO 6d-TEMP |
| Fuel consumption, L/100 km (for Audi SQ8 TDI 2019) — city — highway — combined |
10.2 7.2 8.3 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 280 |
The engine was installed on:
- Audi SQ8 1 (4M) in 2019 – 2020.
Disadvantages of the Audi DHVA engine
- On specialized forums, the motor is usually praised, but there are also complaints;
- Firstly, they note glitches in the operation of the turbocharging, which leads to traction failures;
- Cases of lubricant level surges with the appearance of a corresponding error are also described;
- The remaining engine problems are related to failures in the EGR, DPF and AdBlue systems.
