Shifterati

BMW N55 engine

This page is a draft. It has not been approved yet, so read it with care.

BMW's single-turbo six from 2009, which followed the N54 in the 335i and gave way to the B58 from 2015.

The story

History: facts, each with its source

The N55 replaced the N54's two turbos with one twin-scroll turbo and added Valvetronic. Wikipedia lists it in the E90 335i from 2010 and the F30 335i from 2011, and says the B58 began replacing it in 2015.1

BMW Tuning calls the N55 a fairly reliable engine, with none of its common problems necessarily major.2

  • Displacement: 3.0L (2,979 cc)1
  • Bore × stroke: 84 × 89.6 mm1
  • Block: Aluminium1

Sources

  1. Wikipedia (N55)
  2. BMW Tuning (N55 problems)