BMW N42 engine
Content
A series of BMW N42 gasoline engines for 1.8 and 2.0 liters was produced from 2001 to 2007 and was installed only on 3-Series models in the E46 body, including the three-door Compact. This motor is the first to use the Valvetronic system along with Double VANOS.
The R4 range includes: M10, M40, M43, N43, N45, N46, N13, N20 and B48.
Technical characteristics of engines of the BMW N42 series
| Exact volume | 1796 cm³ |
| Supply system | injector |
| Internal combustion engine power | 116 hp |
| Torque | 175 Nm |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Bore | 84 mm |
| Piston stroke | 81 mm |
| Compression ratio | 10.5 |
| Features of the internal combustion engine | Valvetronic |
| Hydraulic compensators | Yes |
| Timing drive | chain |
| Phase regulator | double VANOS |
| Turbocharging | no |
| What kind of oil to pour | 4.25 liters 5W-30 |
| fuel type | AI-92 |
| Environmental class | EURO 3 |
| Approximate resource | 250 000 km |
| Exact volume | 1995 cm³ |
| Supply system | injector |
| Internal combustion engine power | 143 hp |
| Torque | 200 Nm |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Bore | 84 mm |
| Piston stroke | 90 mm |
| Compression ratio | 10 |
| Features of the internal combustion engine | Valvetronic |
| Hydraulic compensators | Yes |
| Timing drive | chain |
| Phase regulator | double VANOS |
| Turbocharging | no |
| What kind of oil to pour | 4.25 liters 5W-30 |
| fuel type | AI-92 |
| Environmental class | EURO 3 |
| Approximate resource | 275 000 km |
The weight of the N42 engine according to the catalog is 135 kg
Engine number N42 is located at the junction of the block with the head
Fuel consumption of internal combustion engine BMW N42
Using the example of a 318 BMW 2002i with a manual transmission:
| City | 10.2 liters |
| Track | 5.5 liters |
| Mixed | 7.2 liters |
Similar motors from other manufacturers:
Which cars were equipped with the N42 1.8 - 2.0 l engine
| 3-Series E46 | 2001 – 2007 |
| 3-Series Compact E46 | 2001 – 2004 |
Disadvantages, breakdowns and problems of the N42
Most of the problems for owners are caused by failures in Valvetronic and Vanos systems.
The timing chain and its tensioner often require replacement already at a range of 100 - 150 thousand km
The engine is very hot, which greatly affects the life of the valve stem seals
Non-original oil may not withstand these temperatures and the engine will seize.
When replacing candles, expensive ignition coils very often fail here.
