Engine BMW M54B25 under the hood

Engine BMW M54B25

The volume of the M54B25 engine is 2494 cc (2.5 liters). The power of the unit at 6000 rpm was 192 hp. The torque at 3500 rpm is 245 Nm. The piston stroke is 75 mm, the cylinder diameter is 84 mm. The engine is equipped with a Double VANOS variable valve timing system.


Manufacturer Munich Plant
Also called M54
Production years 2000-2006
Cylinder block alloy aluminum
Fuel system injector
Configuration inline
Number of cylinders 6
Valves per cylinder 4
Piston stroke, mm 75
Cylinder bore, mm 84
Compression ratio 10.5
Displacement, cc 2494
Power output, hp 192/6000
Torque output, Nm / rpm 237/3500
Fuel type 95
Euro standards Euro 3-4
Weight, kg ~130
Fuel consumption, L/100 km
— city
— highway
— combined
Oil consumption, gr/1000 km up to 1000
Recommended engine oil 5W-30 / 5W-40
Engine oil capacity, liter 6.5
Oil change interval, km 10000
Normal engine operating temperature, °C ~95
Engine lifespan, km
— official information
— real


Frequent problems

With long-term operation, even reliable BMW M54B25 engines can experience problems with overheating, misfiring, and high oil consumption.

If the engine overheats, see if the radiator needs to be cleaned, check the condition of the thermostat and the radiator cap. Helps to expel air from the cooling system.

Engine BMW M54B25High oil consumption in engines is associated with coking of the piston rings. We need to put on new rings. Also check the crankcase ventilation valve, it may need to be replaced.

When misfires are noticeable, the reason is the hydraulic lifters that need to be replaced.

If the red oil light is constantly on, you need to check the oil pump and oil cup. Another common problem is the failure of the DPRV. It should be borne in mind that the thread under the cylinder head is not highly reliable.

Timely diagnostics and replacement of worn parts will ensure the convenience and reliability of engine operation.

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