Engine Mercedes M272 E30

The Mercedes M272 E30 engine occupies a place between the M272 E35 and M272 E25, the main purpose of the model is to replace the outdated M112 E28. The M272 E30 aluminum V-shaped (camber 90°) engine block is similar to that used in the E35, but with smaller cylinders and a short-stroke crankshaft.

The V6-family includes: M112 E24, M112 E26, M112 E28, M112 E32, M112 E37, M272 E25, M272 E30, M272 E35, M276 DE30, M276 DE35.

The cylinder heads are similar to the E35: aluminum with two camshafts (DOHC) and 4 valves per cylinder, the diameter of the intake valves is reduced to 37 mm, exhaust to 28 mm. Everything also uses a continuously variable valve timing system on the intake and exhaust shafts, hydraulic lifters, a two-stage intake manifold with variable length.

The timing drive uses a double roller chain, its service life is about 150 thousand km. Bosch ME control system 9.7.


Production years 2004-2013
Displacement, cc 2996
Fuel system distributed injection
Power output, hp 231
Torque output, Nm 300
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 88
Piston stroke, mm 82.1
Compression ratio 11.3
Features no
Hydraulic lifters yes
Timing drive chain
Phase regulator yes
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 8.0
Fuel type petrol
Euro standards EURO 4/5
Fuel consumption, L/100 km (for Mercedes C280 W204)
— city
— highway
— combined
Engine lifespan, km ~300 000
Weight, kg 177

Disadvantages of the M272 KE30 engine

  • The weakest point of this power unit is its timing drive.
  • Due to the rapid wear of the balancer shaft sprockets, the entire timing drive becomes unusable.
  • Another known problem is a stuck exhaust manifold flap.
  • Plastic cylinder head plugs ooze oil for 50 – 70 thousand km.
  • Overheating of the engine leads to detonation and destruction of the aluminum coating in the cylinders.

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