The BMW N74B60 engine was produced in 2009 according to a personal drawing in order to eliminate their errors and simplify the production stages using parts from previous engines released.
This petrol 12-cylinder V-type engine replaced the N73 unit, many different components were borrowed from the N63 engine. To reduce the cost of manufacturing parts and improve maintainability, all engine elements are made of aluminum.
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
- The main problems of the motor are associated with rapid coking at idle;
- Turbines can fail up to 100,000 km due to coking in oil lines;
- By a mileage of 150 thousand km, the Double VANOS system may already require attention here;
- After 150,000 km, timing chains often stretch, and their replacement will be expensive;
- Also, valve stem seals quickly tan in the engine and lubricant consumption appears.
