The company produced the 6.3-liter Audi CEJA or A8 W12 6.3 FSI engine from 2010 to 2013 and installed it only on the maximum versions of the A8L quattro sedan in the D4 body before restyling. After restyling the model, this unit gave way to an updated motor with the CTNA index.
The EA398 series includes: BHT, BRN, CEJA, BDN.
Specifications
| Production years | 2010-2013 |
| Displacement, cc | 6299 |
| Fuel system | direct injection |
| Power output, hp | 500 |
| Torque output, Nm | 625 |
| Cylinder block | aluminum W12 |
| Block head | aluminum 48v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 90.4 |
| Compression ratio | 11.8 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | on the intake and exhaust |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 11.5 |
| Fuel type | petrol |
| Euro standards | EURO 5 |
| Fuel consumption, L/100 km (for Audi A8L 2011) — city — highway — combined |
18.2 9.0 12.4 |
| Engine lifespan, km | ~260 000 |
The engine was installed on:
- Audi A8 D4 (4H) in 2010 – 2013.
Disadvantages of the Audi CEJA engine
- This engine is extremely demanding on the quality of the fuel and lubricant used.
- From bad gasoline and oil in the engine cylinders, scoring quickly forms.
- Due to scuffing, an oil burner appears, which here is fraught with turning the liners.
- Frequent overheating of the power unit greatly accelerates the formation of scoring.
- After 200,000 km, timing chains often require attention and you have to remove the engine.
