BMW N46

Source: Wikipedia, the free encyclopedia.
BMW N46 engine
DOHC, with VVT & VVL
Combustion
Fuel typePetrol
Chronology
PredecessorBMW N42
SuccessorBMW N43

The BMW N46 is a

piston engines which replaced the BMW N42 and was produced from 2004 to 2015.[1]

The N46 serves as the basis for the smaller BMW N45 engine (which does not have Valvetronic).

In 2007, the N46's successor - the

BMW N13
turbocharged four-cylinder engine.

Design

Compared with its N42 predecessor, the N46 features a revised

intake manifold[2] and valvetrain.[3] In 2007, the N46 was updated, which was known as the N46N. Changes included the intake manifold, exhaust camshaft and the engine control unit was changed from Bosch Motronic version ME9.2 to version MV17.4.6.[2] The redline is 6,500 rpm.[4]

Versions

Version Displacement Power Torque Year
N46B18 1,796 cc (109.6 cu in) 85 kW (114 bhp)
at 5,500 rpm		 175 N⋅m (129 lb⋅ft)
at 3,750 rpm		 2004
N46B20U1 1,995 cc (121.7 cu in) 95 kW (127 bhp)
at 5,750 rpm		 180 N⋅m (133 lb⋅ft)
at 3,250 rpm		 2005
N46B20U2 100 kW (134 bhp)
at 5,750 rpm		 180 N⋅m (133 lb⋅ft)
at 3,250 rpm		 2007
N46B20U0 105 kW (141 bhp)
at 6,000 rpm		 200 N⋅m (148 lb⋅ft)
at 3,750 rpm		 2007
N46B20O1 110 kW (148 bhp)
at 6,200 rpm		 200 N⋅m (148 lb⋅ft)
at 3,600 rpm 		2004
200 N⋅m (148 lb⋅ft)
at 3,750 rpm
N46NB20 127 kW (170 bhp)
at 6,400 rpm		 210 N⋅m (155 lb⋅ft)
at 4,100 rpm		 2007

N46B18

The N46B18 has a 1,796 cc (109.6 cu in) displacement and produces 85 kW (114 bhp) and 175 N⋅m (129 lb⋅ft).[5]

Applications:

N46B20U0

The N46B20U0 produces 105 kW (141 bhp) and 200 N⋅m (148 lb⋅ft).

N46B20U1

The N46B20U1 produces 95 kW (127 bhp) and 180 N⋅m (133 lb⋅ft).[5]

Applications:

  • 2005-2007
    E87
    118i
  • 2005-2007
    E90/E91
    318i

N46B20U2

The N46B20U2 produces 100 kW (134 bhp) and 180 N⋅m (133 lb⋅ft). It was used instead of the N43 engine in countries with high-sulfur fuel.

Applications:

  • 2007-2011
    E81/E87
    118i
  • 2007-2013
    E90
    318i

N46B20A

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

Applications:

  • 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.

Applications:

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

N46NB20

The N46B20 produces 127 kW (170 bhp) and 210 N⋅m (155 lb⋅ft). It was used instead of the N43 engine in countries with high-sulfur fuel.

Applications:

  • 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

N46B20 engine number key code: [1]

See also

References

  1. ^ "X1 E84 18i model selection". www.realoem.com. Retrieved 24 March 2017.
  2. ^ a b "BMW N46B30 engine". www.mywikimotors.com. Retrieved 24 March 2017.
  3. ^ "BMW N43, N45 and N46 Four Cylinder Valvetronic Engines". www.unixnerd.demon.co.uk. Archived from the original on 17 February 2020. Retrieved 24 March 2017.
  4. ^ "BMW Workshop Manual". www.workshop-manuals.com. Retrieved 13 July 2013.
  5. ^ a b "Engine specifications for N46 engines". www.bmwheaven.com. Retrieved 3 June 2012.
  6. ^ Treichel, Alois (2020-09-17). "Model Archive for BMW models · BMW E90 · Development Code · bmwarchive.org". Model Archive for BMW models · bimmerarchive.org. Retrieved 2020-09-17.
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