The company assembled the 2.0-liter Hyundai G4NE or 2.0 MPi Hybrid engine from 2012 to 2015 and installed it on the hybrid versions of the Sonata 6 and the similar Optima 3 for the Asian market. In the US market, such hybrids were equipped with a 2.4-liter G4KK unit of the Theta II series.
The Nu family includes engines: G4NB, G4NA, G4NC, G4ND, G4NE, G4NH, G4NG, G4NL, G4NN.
The engine was installed on:
- Hyundai Sonata 6 (YF) in 2012 -2015;
- Kia Optima 3 (TF) in 2012 – 2015.
Specifications
| Production years | 2012-2015 |
| Displacement, cc | 1999 |
| Fuel system | distributed injection |
| Power output, hp | 150 (190 with electrical component in 2012-2013 , 177 in 2013-2015) |
| Torque output, Nm | 180 (245 with electrical component in 2012-2013 , 319 in 2013-2015) |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 81 |
| Piston stroke, mm | 97 |
| Compression ratio | 12.5 |
| Features | Atkinson cycle |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | Dual CVVT |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.3 |
| Fuel type | petrol |
| Euro standards | EURO 5 |
| Fuel consumption, L/100 km (for Kia Optima Hybrid 2012) — city — highway — combined |
5.9 5.0 5.1 |
| Engine lifespan, km | ~250 000 |
Disadvantages of the Hyundai G4NE engine
- This motor is a real exclusive, there are very few such cars produced.
- Its main problem is the lack of spare parts and sensible repair specialists.
- On specialized forums, they often complain about various glitches in the electrical part of the engine.
- Owners are also constantly faced with oil and coolant leaks.
- The catalytic converter is located close to the cylinder block and scuffing is quite possible here.
