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.
4.0 TFSI V8 EA824 family: CRDB, CEUA, CEUC, CGTA, CTFA, CTGE, CWUB, DDTA.
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 |
| Weight, kg | 224 |
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.
Frequently asked questions about the Audi CRDB
How much power does the Audi CRDB make?
The Audi CRDB develops 560 hp and 700 Nm of torque.
How much oil does the Audi CRDB take and which one?
Engine oil capacity: 8.3 liters. Recommended oil: 5W-30.
Does the Audi CRDB have a timing belt or chain?
The Audi CRDB uses a timing chain.
Is the Audi CRDB turbocharged?
Yes, the Audi CRDB is turbocharged (Bi-Turbo).
Does the Audi CRDB need valve clearance adjustment?
No, the Audi CRDB has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Audi CRDB last?
The typical lifespan of the Audi CRDB is ~220 000 km with proper maintenance.
What is the fuel consumption of the Audi CRDB?
Audi RS7 2015: city 13.3, highway 7.3, combined 9.5 L/100 km.
What cars was the Audi CRDB installed on?
Audi RS6 C7 (4G) in 2013 - 2018; Audi RS7 C7 (4G) in 2013 - 2017.
What are the common problems of the Audi CRDB?
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. All known problems.
