The 4.0-liter Audi CRDB or RS7 4.0 TFSI engine was produced by the company from 2013 to 2018 and was installed on such charged models of the German concern as the RS6 or RS7 in the C7 body. There were even more powerful Performance modifications with a 605-horsepower CWUC unit.
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
- Turbo engines of this series are very afraid of overheating, watch the cooling system;
- From low-quality gasoline or oil in the engine cylinders, scoring quickly forms;
- Saving on lubrication reduces the resource of turbines, sometimes they serve less than 100,000 km;
- Quite often, there are leaks in the injection pump, and the fuel from them gets into the oil;
- The weak points of the motor include active supports and upper timing chain tensioners.
