Engine Mazda B5-ME

The 1.5-liter Mazda B5-ME gasoline engine was produced by the company from 1992 to 2002 and was installed on the popular Demio model in the Asian market and the basic modifications of Kia Sephia. There is a version of this unit with the B5-MI index and mono-injection instead of distributed.

The B-engine family includes: B1, B3, B3‑ME, B5, B5‑DE, B5‑ME, B6, B6‑ME, B6‑DE, BP, BP‑ME.

The engine was installed on:

  • Mazda Demio DW in 1996 – 2002;
  • Kia Avella 1 (KB) in 1993 – 2000;
  • Kia Sephia 1 (FA) in 1992 – 1997.


Production years 1992-2002
Displacement, cc 1498
Fuel system injector
Power output, hp 75 – 100
Torque output, Nm 115 – 130
Cylinder block cast iron R4
Block head aluminum 16v
Cylinder bore, mm 78
Piston stroke, mm 78.4
Compression ratio 9.0 – 9.5
Features SOHC
Hydraulic lifters until 1999
Timing drive belt
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 3.2
Fuel type petrol
Euro standards EURO 2/3
Fuel consumption, L/100 km (for Mazda Demio 2001)
— city
— highway
— combined
Engine lifespan, km ~300 000
Weight, kg 123.1

Disadvantages of the Mazda B5-ME engine

  • Based on the activity on the specialized forums, the ignition system delivers the most problems.
  • On versions of engines with hydraulic compensators, they can easily be damaged by low-quality oil.
  • Another weak point of the motor is the oil pump pressure relief valve.
  • According to the regulations, the timing belt changes every 60,000 km, but when it breaks, the valves do not bend.
  • Closer to 200 thousand km, oil scraper rings may lie down and lubricant consumption will appear.

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