Mercedes M254 engine
Engines

Mercedes M254 engine

Technical characteristics of gasoline engines M254 or Mercedes M254 1.5 and 2.0 liters, reliability, resource, reviews, problems and fuel consumption.

Mercedes M254 engines with a volume of 1.5 and 2.0 liters were first introduced in 2020 and are distinguished by plasma sprayed cast iron with Nanoslide coating and an ISG starter generator. So far, these power units are put only on the fifth generation of our popular C-Class model.

R4 series: M166, M260, M264, M266, M270, M271, M274 and M282.

Technical characteristics of the Mercedes M254 engine 1.5 and 2.0 liters

Modification M 254 E15 DEH LA
Exact volume1497 cm³
Supply systemdirect injection
Internal combustion engine power170 - 204 HP
Torque250 - 300 Nm
Cylinder blockaluminum R4
Block headaluminum 16v
Bore80.4 mm
Piston stroke73.7 mm
Compression ratio10.5
Features of the internal combustion engineISG 48V
Hydraulic compensatorsYes
Timing drivechain
Phase regulatorCamtronic
TurbochargingYes
What kind of oil to pour6.6 liters 5W-30
fuel typeAI-98
Environmental classEURO 6
Approximate resource260 000 km

Modification M 254 E20 DEH LA
Exact volume1991 cm³
Supply systemdirect injection
Internal combustion engine power258 hp
Torque400 Nm
Cylinder blockaluminum R4
Block headaluminum 16v
Bore83 mm
Piston stroke92 mm
Compression ratio10.5
Features of the internal combustion engineISG 48V
Hydraulic compensatorsYes
Timing drivechain
Phase regulatorCamtronic
TurbochargingYes
What kind of oil to pour6.6 liters 5W-30
fuel typeAI-98
Environmental classEURO 6
Approximate resource250 000 km

The weight of the M254 engine in the catalog is 135 kg

Engine number M254 is located at the junction of the block with the box

Fuel consumption of internal combustion engine Mercedes M254

On the example of a 180 Mercedes-Benz C 2021 with an automatic transmission:

City8.7 liters
Track4.7 liters
Mixed6.2 liters

Which cars are equipped with the M254 1.5 and 2.0 l engine

Mercedes
C-Class W2062021 - p.t.
  

Disadvantages, breakdowns and problems of the internal combustion engine M254

This turbo engine has just appeared and naturally there are no statistics of its breakdowns

All units of the modular series are afraid of detonation, do not use gasoline below AI-98

As before, the Camtronic system is considered the weak point of the internal combustion engine design of this series.

Here direct fuel injection and valves will probably quickly become covered with soot.

It was such a motor that was going to be put on the new E-Class, but for some reason they refused


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