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Engine BMW N46B20
Engine BMW N46B20
Engine BMW N46B20
Engine BMW N46B20
Engine BMW N46B20
Engine BMW N46B20
  1. Engine BMW N46B20
  2. Engine BMW N46B20
  3. Engine BMW N46B20
  4. Engine BMW N46B20
  5. Engine BMW N46B20
  6. Engine BMW N46B20

Engine components for BMW N13B16 N55B30A N46B20 N14B16 N20B20

The advantages of the BMW N46B20 engine are simple process, wear resistance, stability, and the phenomenon of oil burning is alleviated as the gap decreases after the cylinder wall is run-in. The disadvantage is that the surface of the iron cylinder liner is relatively rough when the car is in the new state. During the engine running-in period, the gap between the piston ring and the cylinder liner is large, which is easy to burn oil. In addition, the thickness of the iron cylinder liner affects heat transfer.

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Description

N46NB20
The N46B20 produces 127 kW (170 bhp) and 210 N⋅m (155 lb⋅ft). It is intended to replace the N43 engine in countries using high-sulfur fuels.

Application:

2007-2011 E81/E82/E87/E88 120i
2007-2013 E90/E91/E92/E93 320i
2007-2010 E60 520i
2009-2015 E84 X1 sDrive18i / xDrive18i
2007-2010 E83 X3 2.0i

N46B20A
The N46B20A produces 105 kW (141 bhp) and 200 N⋅m (148 lb⋅ft) of torque.

Applicable Models:

2004-2006 E46 318i, 318Ci and 318ti

N46B20O1
The N46B20O1 produces 110 kW (148 bhp) and 200 N⋅m (148 lb⋅ft). On models with secondary air injection, peak torque occurs at 3750 rpm instead of 3600 rpm.

Applicable models:

2004-2007 E83 X3 2.0i
2005-2008 E85 Z4 2.0i
2004-2007 E87 120i
2005-2007 E90/E91 320i

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