Engine Mercedes M111 E20

In 1992, the Mercedes M111 E20 engine replaced the outdated 4-cylinder E20 engine from the M102 series. The new 2.0-liter engine differs from its predecessor primarily in a completely new cylinder block, which is made of cast iron, a new crankshaft, and a new connecting rod and piston group.

R4 Mercedes engines: M102, M111 E18, M111 E20, M111 E22, M111 E23, M166, M254, M260, M264, M266, M270, M271, M274, M282.

On the M111 E20 engine, the cylinder head has 4 valves per cylinder and two camshafts. The design provides space for hydraulic lifters, as well as electronic fuel injection systems.


Production years 1992-2004
Displacement, cc 1998
Fuel system injector
Power output, hp 136 (M 111 E 20)
180 – 192 (M 111 E 20 ML)
Torque output, Nm 190 (M 111 E 20)
250 – 270 (M 111 E 20 ML)
Cylinder block cast iron R4
Block head aluminum 16v
Cylinder bore, mm 89.9
Piston stroke, mm 78.7
Compression ratio 9.6 – 10.4 (M 111 E 20)
8.5 (M 111 E 20 ML)
Features no
Hydraulic lifters yes
Timing drive chain
Phase regulator at the intake
Turbocharging no (M 111 E 20)
kompressor (M 111 E 20 ML)
Recommended engine oil 5W-40
Engine oil capacity, liter 5.5
Fuel type petrol
Euro standards EURO 2/3
Fuel consumption, L/100 km (for Mercedes C200 1999)
— city
— highway
— combined
Engine lifespan, km ~420 000
Weight, kg 167

Disadvantages of the M111 E20 engine

  • Most of all, grease leaks will cause you problems, and their number grows with mileage.
  • The mass air flow sensor has a modest resource; if it breaks, fuel consumption increases.
  • Up to 100,000 kilometers, the water pump almost always starts to leak in the engine.
  • From 100 to 200 thousand km, piston skirts often wear out or the exhaust cracks.
  • After 200 – 250 thousand km, the oil pump or timing chain drive already requires attention.

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