BMW N40
The BMW N40 is a DOHC four-cylinder petrol engine which replaced the 1.6 litre versions of the BMW M43.[1] It was produced from 2001-2004 and only sold in several countries, where taxes favoured cars with smaller displacement engines. The N40 was replaced by the BMW N45.
| BMW N40 engine | |
|---|---|
| Overview | |
| Production | 2001–2004 |
| Layout | |
| Configuration | Inline-4 |
| Displacement | 1.6 L (98 cu in) |
| Block material | Aluminium |
| Head material | Aluminium |
| Valvetrain | DOHC, with VVT |
| Combustion | |
| Fuel type | Petrol |
| Chronology | |
| Predecessor | BMW M43 |
| Successor | BMW N45 |
Design
BMW E46/5 316ti
The N40 is based on the BMW N42 engine and uses the same crankcase, pistons and bore size of 84 mm (3.3 in). The redline is 6,500 rpm.
Unlike the N42, the N40 does not have Valvetronic (variable valve lift). The other major difference is a 9 mm (0.4 in) reduction in stroke to 72.0 mm (2.8 in), which results in the smaller displacement than the N40.
Versions
| Version | Displacement | Power | Torque | Years |
|---|---|---|---|---|
| N40B16 | 1,596 cc (97 cu in) | 85 kW (114 bhp) at 6,100 rpm | 150 N⋅m (111 lb⋅ft) at 4,300 rpm | 2001–2004 |
Applications:[2]
- 2001-2005 E46 316i/316ci/316ti (certain markets only)
See Also
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References
- Lewin, Tony (2004). The Complete Book of BMW: Every Model in the World Since 1962. MotorBooks International. pp. 258–259. ISBN 9781610592055.
- "3'E46 316i model selection". www.realoem.com. Retrieved 12 March 2017.
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