Engine BMW M43B16

Engine BMW M43B16

The BMW M43B16 engine with a displacement of 1.6 L (1596 cc) has a rated power of 101 hp. (75 kW) at 5500 rpm, and the torque is 150 Nm at 3900 rpm. The maximum crankshaft speed is 6200 rpm. The power unit is equipped with a fuel injection system with a variable intake manifold length.

Specifications

Manufacturer Steyr Plant
Also called M43
Production years 1993-2002
Cylinder block alloy cast iron
Fuel system injector
Configuration inline
Number of cylinders 4
Valves per cylinder 2
Piston stroke, mm 72
Cylinder bore, mm 84
Compression ratio 9.7
Displacement, cc 1596
Power output, hp 102/5500
Torque output, Nm / rpm 150/3900
Fuel type 95
Euro standards Euro 2-3
Weight, kg
Fuel consumption, L/100 km (for 316i E36)
— city
— highway
— combined
11.0
5.9
7.7
Oil consumption, gr/1000 km up to 1000
Recommended engine oil 0W-30 / 0W-40 / 5W-30 / 5W-40 / 10W-40 / 15W-50
Engine oil capacity, liter 4.0
Oil change interval, km 7000-10000
Normal engine operating temperature, °C 90-95
Engine lifespan, km
— official information
— real

300+

Frequent problems

Among the malfunctions in the operation of the M43B16 engine, they note: noise, engine knocking, rapid oil consumption, unstable rpm, overheating.

If oil leaks, it is necessary to check the valve cover – replace the KVKG and the sealed gasket. If you hear noise, crackling and knocking in the motor, you need to check the condition of the DISA damper. To restore functionality, they resort to a repair kit. Sometimes hydraulic lifters knock. The engine may make noise from the rocker arms and camshaft.
Engine BMW M43B16 under the hood
The power unit is also characterized by unstable rpm, jolts during acceleration, and overheating. Turnovers float when the mass air flow sensor breaks down, air leaks are possible. You also need to inspect the lambda probe, KXX and throttle valve. Difficulty turning the camshaft sometimes causes a problem.

Shocks or dips during acceleration are caused by dirty injectors; it is enough to clean them.

To find out the cause of engine overheating, inspect the pump, radiator, thermostat. In some cases, a blowdown of the cooling system is required to remove air pockets. You should also check the condition of the pipes in the cooling system. When the engine does not start, they look for a problem in the spark plugs, the ignition coil, high-voltage wires, and the gas pump.

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