The N43B16 engine is a modification of the N43 with a volume of 1599 cc. The engine has been produced since 2007. The engine power is 121 hp, and the peak torque of 160 N*m is achieved at 4250 rpm. The engine was installed on BMW cars with an index of 16i. A feature of the motor is the use of the well-proven Valvetronic valve lift system. The engine has a direct fuel injection system.
Specifications
| Manufacturer | BMW Plant Hams Hall |
| Also called | N43 |
| Production years | 2007-2011 |
| Cylinder block alloy | aluminum |
| Fuel system | injector |
| Configuration | inline |
| Number of cylinders | 4 |
| Valves per cylinder | 4 |
| Piston stroke, mm | 75.7 |
| Cylinder bore, mm | 82 |
| Compression ratio | 12 |
| Displacement, cc | 1599 |
| Power output, hp | 122/6000 |
| Torque output, Nm / rpm | 160/4250 |
| Fuel type | 95 |
| Euro standards | Euro 4-5 |
| Weight, kg | — |
| Fuel consumption, L/100 km (for 116i E87) — city — highway — combined |
7.5 4.8 5.8 |
| Oil consumption, gr/1000 km | up to 700 |
| Recommended engine oil | 5W-30 / 5W-40 |
| Engine oil capacity, liter | 4.25 |
| Amount of engine oil for replacement, liter | 4 |
| Oil change interval, km | 10000 |
| Normal engine operating temperature, °C | — |
| Engine lifespan, km — official information — real |
— 250+ |
Frequent problems
When operating the BMW N43B16 engine, there are problems with floating speed and vibration.
If the injectors need to be replaced, vibration occurs in the motor. It is necessary to check the condition of the injectors and replace them in a timely manner. If the engine is troit and floating speed is noticeable, the problem may be in the failed ignition coils. They should be checked and replaced.
After about 80 thousand kilometers, the vacuum pump becomes unusable, the part needs to be replaced. It is also recommended to regularly check the condition of the cooling system to prevent overheating of the power unit.
Owners of a car with a BMW N43B16 engine should take into account that the unit works well on high-quality working fluids. If you save on oil, you can face the problem of engine overhaul. Better to use the oil recommended by BMW. If the motor is provided with timely maintenance with the replacement of worn parts, it will serve a long time without problems.
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