Engine BMW N74B60

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 98
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.

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