BMW N42

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The BMW N42 is one of BMW -developed petrol engine with four cylinders and 16 valves, two overhead camshafts are operated. The N42 is the first engine model to use the Valvetronic system , which results in lower fuel consumption, reduced exhaust emissions and, at the same time, better responsiveness and smoother running. It also has double VANOS , two gear-driven balancer shafts and, in the case of the N42B20 variant, the two-stage variable intake manifold DISA. Aluminum was used for the crankcase (engine block) and the cylinder head. The Bosch DME ME9.2 EK924 served as the motor control.

In 2001 the N42 won the International Engine of the Year Award .

The engine was used in the 3 Series (E46) in two versions, the 316i with 1796 cc and 115 hp and the 318i with 1995 cc and 143 hp. At the same time, the BMW N40 with a reduced displacement without Valvetronic was developed for certain world markets .

The BMW N42 was replaced by the BMW N45 / N46 .

Data

Engine type Displacement Bore × stroke Valves / cyl. Power at 1 / min Torque at 1 / min Maximum speed construction time
N42B18 1.8 l (1796 cm 3 ) 84 mm × 81 mm 4th 85 kW (115 PS) at 5500 175 Nm at 3750 6500 min −1 2001-2004
N42B20 2.0 l (1995 cm 3 ) 84 mm × 90 mm 4th 105 kW (143 hp) at 6000 200 Nm at 3750 2001-2004

use

N42B18

  • 06 / 2001-2004 BMW E46 316i / 316ti Compact

N42B20

  • 2001-2004 BMW E46 318i / 318Ci / 318ti Compact

swell

Individual evidence

  1. ↑ http://de.bmwfans.info/parts/catalog/E46/Sedan/Europe/316i-N42/LHD/N/2001/october/browse/engine_electrical_system/basic_control_unit_dme_ek924/
  2. ↑ http://www.auto-motor-und-sport.de/einzeltests/bmw-318i-koerperpflege-nach-bayernart-767416.html
Timeline of BMW gasoline engines for passenger cars since 1961
Number of cylinders Conception 1960s 1970s 1980s 1990s 2000s 2010s
0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th
3 1.5 l B38
4th (1.5–2.0 l) M10
M40
M42
M43
M44
N40
N42
N45
N46
N43
N13
N20
B48
High performance motor S14
6th Small six-cylinder (2.0-3.0 l) M20
M50
M52
M54
Large six-cylinder (2.5-3.5 l) M30
N52
N53
N54
N55
B58
High performance motor M88
S38
S50
S52
S54
S55
8th 3.0-4.4 l M60
M62
N62
N63
High performance motor S62
S63
S65
10 High performance motor S85
12 5.0-6.6 l M70
M73
N73
N74
High performance motor S70
Number of cylinders Conception 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th
1960s 1970s 1980s 1990s 2000s 2010s