Engine Mazda MZR Z6

The 1.6-liter Mazda Z6 engine was produced at the Japanese plant of the company from 2003 to 2019 and has been installed only on the model of the third series for all the time, but at once in its three generations.

The MZR Z6 engine is assembled according to the classical scheme with an in-line arrangement of 4 cylinders. It is a further development of the B6D powertrain, which was manufactured at the Hiroshima Plant. Now this plant produces all engines for the Mazda 3. The cylinder block of the MZR Z6 engine is made of durable aluminum alloy. The timing is driven by a lamellar steel chain, which does not need to be replaced for a long time (mileage of at least 250 thousand km). It is stretched using an automatic tensioner.

The Z-engine family also includes:

The engine was installed on:

  • Mazda 3 BK in 2003 – 2009;
  • Mazda 3 BL in 2009 – 2013;
  • Mazda 3 BM in 2013 – 2019.

Specifications

Production years 2003-2019
Displacement, cc 1598
Fuel system distributed injection
Power output, hp 105
Torque output, Nm 145
Cylinder block aluminum R4
Block head aluminum 16v
Cylinder bore, mm 78
Piston stroke, mm 83.6
Compression ratio 10
Features DOHC
Hydraulic lifters no
Timing drive chain
Phase regulator S-VT, intake
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 4.2
Fuel type 92
Euro standards EURO 4/5
Fuel consumption, L/100 km (for Mazda 3 2008)
— city
— highway
— combined
8.9
5.7
6.9
Engine lifespan, km ~250 000
Weight, kg 131.2

Disadvantages of the Mazda Z6 engine

  • The first years of production were often loose and the intake flaps began to rattle;
  • Relatively little engine mounts serve here, which leads to strong vibrations;
  • Throttle or EGR contamination is the main cause of floating rpm;
  • A blown intake manifold gasket could also be the culprit;
  • There are no hydraulic lifters and every 100,000 km it is necessary to adjust the valves here.

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