Engine BMW N55B30

The 3.0-liter BMW N55B30 turbo engine was produced by the German concern from 2009 to 2018 and was installed on almost all major models of the company, including X-series crossovers. Alpina created several of its especially powerful power units based on this engine.

The engine was installed on:

  • BMW 1-Series E87 in 2010 – 2013; 1-Series F20 in 2012 – 2016;
  • BMW 2-Series F22 in 2013 – 2018;
  • BMW 3-Series E90 in 2010 – 2012; 3-Series F30 in 2012 – 2015;
  • BMW 4-Series F32 in 2013 – 2016;
  • BMW 5-Series F07 in 2009 – 2017; 5-Series F10 in 2010 – 2017;
  • BMW 6-Series F12 in 2011 – 2018;
  • BMW 7-Series F01 in 2012 – 2015;
  • BMW X3 F25 in 2010 – 2017;
  • BMW X4 F26 in 2014 – 2018;
  • BMW X5 E70 in 2010 – 2013; X5 F15 in 2013 – 2018;
  • BMW X6 E71 in 2010 – 2014; X6 F16 in 2014 – 2018.

Specifications

Production years 2009-2018
Displacement, cc 2979
Fuel system direct injection
Power output, hp 306 (N55B30M0)
320 – 326 (N55B30O0)
360 – 370 (N55B30T0)
Torque output, Nm 400 (N55B30M0)
450 (N55B30O0)
465 (N55B30T0)
Cylinder block aluminum R6
Block head aluminum 24v
Cylinder bore, mm 84
Piston stroke, mm 89.6
Compression ratio 10.2
Features Valvetronic III
Hydraulic lifters yes
Timing drive chain
Phase regulator double VANOS
Turbocharging twin-scroll
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 535i 2012)
— city
— highway
— combined
11.9
6.4
8.4
Engine lifespan, km ~300 000

Disadvantages of the N55B30 engine

  • This unit does not tolerate non-original oil and instantly cokes;
  • Hydraulic lifters, Vanos and Valvetronic systems are among the first to suffer from coke;
  • In these engines, the direct fuel injection system has become more reliable, but there are still a lot of failures;
  • Many owners change fuel injectors and injection pumps at a mileage of less than 100,000 km;
  • The main culprit for oil loss here is the crankcase ventilation valve.

Leave a Reply

Your email address will not be published. Required fields are marked *