Engine Hyundai G4FU

The Hyundai G4FU or Smartstream MHEV 1.6-liter turbo engine has been produced since 2020 and is installed only on the popular Tucson crossover in Europe and its similar Sportage. The motor is a mild hybrid version of the G4FP unit with a 48-volt starter-alternator.

Gamma family: G4FA, G4FL, G4FS, G4FC, G4FD, G4FG, G4FJ, G4FM, G4FP, G4FT, G4FU.


Production years since 2020
Displacement, cc 1598
Fuel system direct injection
Power output, hp 150 – 180
Torque output, Nm 250 – 265
Cylinder block aluminum R4
Block head aluminum 16v
Cylinder bore, mm 75.6
Piston stroke, mm 89
Compression ratio 10.5
Features CVVD, MHEV
Hydraulic lifters no
Timing drive chain
Phase regulator on both shafts
Turbocharging yes
Recommended engine oil 5W-30
Engine oil capacity, liter 4.8
Fuel type petrol
Euro standards EURO 6d
Fuel consumption, L/100 km (for Hyundai Tucson MHEV 2021)
— city
— highway
— combined
Engine lifespan, km ~250 000
Weight, kg 122

The engine was installed on:

  • Hyundai Tucson 4 (NX4) since 2020;
  • Kia Sportage 5 (NQ5) since 2021.

Disadvantages of the Hyundai G4FU engine

  • This hybrid unit has appeared recently and there is no information about its breakdowns yet.
  • On specialized forums, they don’t scold him much and complain only about rare glitches.
  • Due to the presence of direct fuel injection, the intake valves are overgrown with soot here.
  • Turbo engines of this series often have to change the chain to 100 – 150 thousand km.
  • There are no hydraulic lifters and every 100,000 km you need to adjust the valve clearance.

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