EngineCreep
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BMW N55
in every car

3 cars · scores 70/100

We score the N55 in 3 cars, and all of them land on 70/100. The differences are in which problems owners report, below.

Version by version

  1. BMW N55 in the 335i E90 LCI2010–2012

    70/100Good

    16 confirmed issues

    Best-known problemRod bearing failure · from 97k km · €2,500–8,000

  2. BMW N55 in the 335i F302012–2016

    70/100Good

    17 confirmed issues

    Best-known problemRod bearing failure · from 84k km · €2,500–8,000

  3. BMW N55 in the M135i F20 LCI2015–2016

    70/100Good

    19 confirmed issues

    Best-known problemRod bearing failure · from 84k km · €2,500–8,000

The problems they share

Reported on all 3

  • Rod bearing failure
  • High-pressure fuel pump failure
  • Oil pump wear / sludge buildup
  • Water pump failure
  • Oil leak from seals or gaskets
  • Head gasket failure
  • Piston ringland failure
  • Timing chain stretch / guide wear
  • Excessive oil consumption
  • Fuel injector failure
  • Wastegate / boost actuator failure
  • Dual-mass flywheel / clutch wear
  • Thermostat / temperature sensor failure
  • Variable valve timing solenoid/actuator failure
  • Engine sensor failure

Only reported on the 335i E90 LCI

  • Intake valve carbon buildup

Only reported on the M135i F20 LCI

  • Oil filter housing gasket leak
  • Cracked charge pipe

A problem missing from a version may be rarer there, or have fewer owner reports behind it so far.

Before and after

It replaced the BMW N54, which scores 48/100.

It was replaced by the BMW B58, which scores 87–91/100 across 3 cars.