Engine BMW N43B16 under the hood

Engine BMW N43B16

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.


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
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


Frequent problems

Engine BMW N43B16
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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