The 4.0-liter twin-turbo V8 Audi CEUC was produced from 2012 to 2014 and was installed on the Audi S6 and Audi S7. It has direct injection and two turbochargers (IHI RHF5) and produces 420 hp and 550 Nm.
4.0 TFSI V8 EA824 family: CRDB, CEUA, CEUC, CGTA, CTFA, CTGE, CWUB, DDTA.
Specifications
| Production years | 2012-2014 |
| Displacement, cc | 3993 |
| Fuel system | direct injection |
| Power output, hp | 420 |
| Torque output, Nm | 550 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 84.5 |
| Piston stroke, mm | 89 |
| Compression ratio | 10.1 |
| Features | AVS |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | on all shafts |
| Turbocharging | two IHI RHF5 |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 8.7 |
| Fuel type | petrol |
| Euro standards | EURO 5 |
| Fuel consumption, L/100 km (for Audi S6 2013) — city — highway — combined |
13.4 7.5 9.6 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 219 |
The engine was installed on:
- Audi S6 C7 (4G) in 2012 – 2014;
- Audi S7 C7 (4G) in 2012 – 2014.
Disadvantages of the Audi CEUC engine
- With proper maintenance this twin-turbo V8 can be reliable; avoid engines after serious tuning and watch the cooling;
- Poor fuel quickly destroys the Alusil coating of the cylinders;
- Turbocharger life depends on how often the oil and their mesh filters are changed;
- Owners often complain about the high-pressure fuel pump, active engine mounts and timing chain tensioners.
Frequently asked questions about the Audi CEUC
How much power does the Audi CEUC make?
The Audi CEUC develops 420 hp and 550 Nm of torque.
How much oil does the Audi CEUC take and which one?
Engine oil capacity: 8.7 liters. Recommended oil: 5W-40.
Does the Audi CEUC have a timing belt or chain?
The Audi CEUC uses a timing chain.
Is the Audi CEUC turbocharged?
Yes, the Audi CEUC is turbocharged (two IHI RHF5).
Does the Audi CEUC need valve clearance adjustment?
No, the Audi CEUC has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Audi CEUC last?
The typical lifespan of the Audi CEUC is ~300 000 km with proper maintenance.
What is the fuel consumption of the Audi CEUC?
Audi S6 2013: city 13.4, highway 7.5, combined 9.6 L/100 km.
What cars was the Audi CEUC installed on?
Audi S6 C7 (4G) in 2012 - 2014; Audi S7 C7 (4G) in 2012 - 2014.
What are the common problems of the Audi CEUC?
With proper maintenance this twin-turbo V8 can be reliable; avoid engines after serious tuning and watch the cooling. Poor fuel quickly destroys the Alusil coating of the cylinders. All known problems.
