Engine Mercedes M111 E18

In 1993, the 4-cylinder Mercedes M111 E18 engine replaced the E18 engine from the M102 series. Compared to its predecessor, the engine has become more compact, but the block is also made of cast iron, and the cylinder head is made of light alloy metal. According to the owners, this engine is one of the most common and successful models from Mercedes.

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


Production years 1993-2000
Displacement, cc 1799
Fuel system injector
Power output, hp 122
Torque output, Nm 170
Cylinder block cast iron R4
Block head aluminum 16v
Cylinder bore, mm 85.3
Piston stroke, mm 78.7
Compression ratio 9.8
Features no
Hydraulic lifters yes
Timing drive chain
Phase regulator at the intake
Turbocharging no
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 C180 W202)
— city
— highway
— combined
Engine lifespan, km ~400 000
Weight, kg 167

Disadvantages of the M111 E18 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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