Since 2020, only the well-liked Tucson crossover in Europe and its comparable Sportage have been equipped with the Hyundai G4FU, also known as the Smartstream MHEV 1.6-liter turbo engine. With a 48-volt starter-alternator, the motor is a mild hybrid variant of the G4FP unit.
G4FA, G4FL, G4FS, G4FC, G4FD, G4FG, G4FJ, G4FM, G4FP, G4FT, and G4FU are members of the Gamma family.
Specifications
| 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 |
7.3 5.2 5.9 |
| 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
There is currently no information regarding this hybrid unit’s malfunctions, despite its recent appearance.
They only complain about infrequent bugs and don’t chastise him much on specialized forums.
Here, the intake valves are covered in soot because of the direct fuel injection.
This series’ turbo engines frequently require a 100–150 thousand kilometer chain change.
There are no hydraulic lifters, and the valve clearance needs to be adjusted every 100,000 kilometers.