Using components from earlier engines, the BMW N74B60 engine was manufactured in 2009 in accordance with a personal drawing to reduce errors and streamline the production process.
The N73 unit was replaced by this gasoline 12-cylinder V-type engine, which borrowed numerous parts from the N63 engine. All engine components are made of aluminum to lower manufacturing costs and increase maintainability.
Other modifications of N74: N74B66, N74B68.
The engine was installed on:
- BMW 7-Series F01 in 2009 – 2015.
Specifications
| Production years | since 2009 |
| Displacement, cc | 5972 |
| Fuel system | direct injection |
| Power output, hp | 544 |
| Torque output, Nm | 750 |
| Cylinder block | aluminum V12 |
| Block head | aluminum 48v |
| Cylinder bore, mm | 89 |
| Piston stroke, mm | 80 |
| Compression ratio | 10.0 |
| Features | no |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | double VANOS |
| Turbocharging | Twin-Turbo |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 10.5 |
| Fuel type | petrol |
| Euro standards | EURO 5/6 |
| Fuel consumption, L/100 km (for BMW 760Li 2010) — city — highway — combined |
18.9 9.6 13.0 |
| Engine lifespan, km | ~300 000 |
| Firing order | 1-7-5-11-3-9-6-12-2-8-4-10 |
Disadvantages of the N74B60 engine
Coking in oil lines can cause turbines to fail up to 100,000 kilometers, which is one of the motor’s primary issues.
After 150,000 kilometers, the Double VANOS system might already need maintenance;
Timing chains frequently stretch after 150,000 kilometers, and their replacement will be costly;
Additionally, the engine’s valve stem seals quickly tan, and lubricant consumption is evident.