From 2013 to 2018, the company produced the 4.0-liter Audi CRDB or RS7 4.0 TFSI engine, which was fitted to charged models of the German company like the RS6 or RS7 in the C7 body. Performance modifications with a 605-horsepower CWUC unit were even more potent.
The EA824 series includes: AEW, ABZ, BFL, BFM, AXQ, BVJ, CDRA, BAR, CRDB, CEUA.
Specifications
| Production years | 2013-2018 |
| Displacement, cc | 3993 |
| Fuel system | direct injection |
| Power output, hp | 560 |
| Torque output, Nm | 700 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 84.5 |
| Piston stroke, mm | 89 |
| Compression ratio | 9.3 |
| Features | AVS |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | on all shafts |
| Turbocharging | Bi-Turbo |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 8.3 |
| Fuel type | petrol |
| Euro standards | EURO 5 |
| Fuel consumption, L/100 km (for Audi RS7 2015) — city — highway — combined |
13.3 7.3 9.5 |
| Engine lifespan, km | ~220 000 |
The engine was installed on:
- Audi RS6 C7 (4G) in 2013 – 2018;
- Audi RS7 C7 (4G) in 2013 – 2017.
Disadvantages of the Audi CRDB engine
This series’ turbo engines are extremely cautious about overheating, so keep an eye on the cooling system; low-quality gasoline or oil in the engine cylinders causes scoring to form quickly;
Turbines’ resources are diminished by lubrication savings; occasionally, they operate for less than 100,000 kilometers;
Fuel from injection pump leaks frequently finds its way into the oil;
The motor’s upper timing chain tensioners and active supports are its weak points.