Engine Suzuki M18A

The 1.8-liter Suzuki M18A engine was assembled at the company’s plant in Japan from 2001 to 2007 and installed on Aerio for the Asian and Australian markets, and then it was produced in China for a couple of years. Such a power unit is quite often used for swap instead of the M13A or M16A motor.

Engines of the M-series: M13A, M15A, M16A, M18A.


Production years 2001-2007
Displacement, cc 1796
Fuel system injector
Power output, hp 125
Torque output, Nm 170
Cylinder block aluminum R4
Block head aluminum 16v
Cylinder bore, mm 83
Piston stroke, mm 83
Compression ratio 9.6
Features DOHC
Hydraulic lifters no
Timing drive chain
Phase regulator at the intake
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 4.5
Fuel type petrol
Euro standards EURO 3
Fuel consumption, L/100 km (for Suzuki Aerio 2005)
— city
— highway
— combined
Engine lifespan, km ~350 000
Weight, kg 102 (without attachments)

The engine was installed on:

  • Suzuki Aerio 1 (ER) in 2001 – 2007;
  • Suzuki Liana 1 (ER) in 2004 – 2007.

Disadvantages of the Suzuki M18A engine

  • Most often, car owners with such an engine complain about high lubricant consumption.
  • The motor overheats quite quickly and at the same time often breaks through the cylinder head gasket.
  • The reason for floating engine speeds is usually a dirty throttle or EGR valve.
  • Other weaknesses of the unit include short-lived supports and problematic sensors.
  • At high mileage, liners can sag and antifreeze will mix with oil.

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