BMW automotive engine families listed as N46. Specifications below retain the source's separate family and variant labels.
Family specifications
BMW N46 engine
| Field | Reported value |
|---|---|
| Production | 2004-2015 |
| Configuration | Inline-4 |
| Displacement | 1.8 L (1,796 cc) 2.0 L (1,995 cc) |
| Cylinder bore | 84 mm (3.31 in) |
| Piston stroke | 81 mm (3.19 in) 90 mm (3.54 in) |
| Cylinder block material | Aluminium |
| Cylinder head material | Aluminium |
| Valvetrain | DOHC , with VVT & VVL |
| Fuel type | Petrol |
| Predecessor | BMW N42 |
| Successor | BMW N43 |
Variant specifications
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 | 1,995 cc (121.7 cu in) | 100 kW (134 bhp) at 5,750 rpm | 180 N⋅m (133 lb⋅ft) at 3,250 rpm | 2007 |
| N46B20U0 | 1,995 cc (121.7 cu in) | 105 kW (141 bhp) at 6,000 rpm | 200 N⋅m (148 lb⋅ft) at 3,750 rpm | 2007 |
| N46B20O1 | 1,995 cc (121.7 cu in) | 110 kW (148 bhp) at 6,200 rpm | 200 N⋅m (148 lb⋅ft) at 3,600 rpm | 2004 |
| N46B20O1 | 1,995 cc (121.7 cu in) | 110 kW (148 bhp) at 6,200 rpm | 200 N⋅m (148 lb⋅ft) at 3,750 rpm | 2004 |
| N46NB20 | 1,995 cc (121.7 cu in) | 127 kW (170 bhp) at 6,400 rpm | 210 N⋅m (155 lb⋅ft) at 4,100 rpm | 2007 |
Recorded vehicle applications
N46B18
- 2004-2005 E46 316i/316ti
N46B20U0
The N46B20U0 produces 105 kW (141 bhp) and 200 N⋅m (148 lb⋅ft).
- 2007-2008 E90 318i
N46B20U1
- 2005-2007 E87 118i
- 2005-2007 E90/E91 318i
N46B20U2
- 2007-2011 E81/E87 118i
- 2007-2013 E90 318i
N46B20A
- 2004-2006 E46 318i, 318Ci and 318ti
N46B20O1
- 2005-2006 E46 318Ci
- 2004-2007 E83 X3 2.0i
- 2005-2008 E85 Z4 2.0i
- 2004-2007 E87 120i
- 2005-2007 E90/E91 320i
N46NB20
- 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
BMW automotive engine directory
Data adapted from the cited Wikipedia revision by Wikipedia contributors under CC BY-SA 4.0. Production dates and fitments reflect that revision; verify the exact engine code, market and vehicle before applying a specification.
Sources
Curated reference notes. Applicability follows the cited sources; hardware testing by this wiki is not implied.
- Wikipedia: List of BMW engines. Wikipedia contributors; CC BY-SA 4.0. Source revision oldid 1382309748; accessed 2026-11-10.
- Wikipedia: BMW N46. Wikipedia contributors; CC BY-SA 4.0. Source revision oldid 1378710218; accessed 2026-11-10.