Engine BMW N54B30

The 3.0-liter BMW N54B30 turbo petrol engine was produced by the concern from 2006 to 2016 and was installed on a number of popular models: 1-Series, 3-Series, 5-Series, 7-Series, X6 crossover. This unit was actively used by Alpina to create their heavy-duty motors.

The engine was installed on:

  • BMW 1-Series E87 in 2007 – 2012;
  • BMW 3-Series E90 in 2006 – 2010;
  • BMW 5-Series E60 in 2007 – 2010;
  • BMW 7-Series F01 in 2008 – 2012;
  • BMW X6 E71 in 2008 – 2010;
  • BMW Z4 E89 in 2009 – 2016.

Specifications

Production years 2006-2016
Displacement, cc 2979
Fuel system direct injection
Power output, hp 306 (N54B30O0)
326 – 340 (N54B30T0)
Torque output, Nm 400 (N54B30O0)
450 (N54B30T0)
Cylinder block aluminum R6
Block head aluminum 24v
Cylinder bore, mm 84
Piston stroke, mm 89.6
Compression ratio 10.2
Features no
Hydraulic lifters yes
Timing drive chain
Phase regulator double VANOS
Turbocharging Bi-Turbo
Recommended engine oil 5W-30
Engine oil capacity, liter 6.5
Fuel type 95
Euro standards EURO 5
Fuel consumption, L/100 km (for BMW 740i 2010)
— city
— highway
— combined
13.8
7.6
9.9
Engine lifespan, km ~250 000

Disadvantages of the N54B30 engine

  • The main problems of the engine are associated with the direct fuel injection system;
  • Injectors and high pressure fuel pumps may require replacement much earlier than 100,000 km of run;
  • In engines before 2010, the low pressure valve often failed;
  • Not the biggest resource here is also a pair of Mitsubishi TD03-10TK3 turbines;
  • A newfangled electric pump tends to fail at the most inopportune moment.

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