The 2.0-liter Hyundai-Kia G4NR (Smartstream G2.0 GDi HEV) has been produced since 2019 for hybrid versions of the Sonata and Kia K5, and later for the Chinese Tucson and Sportage. The engine produces 150 hp; the Hybrid system delivers 195 hp and 350 Nm, and the Plug-in Hybrid 205 hp and 368 Nm.
Nu family: G4NB, G4NA, G4NC, G4ND, G4NE, G4NH, G4NG, G4NL, G4NN, G4NJ, G4NM, G4NS, G4NR.
Specifications
| Production years | since 2019 |
| Displacement, cc | 1999 |
| Fuel system | direct injection |
| Power output, hp | 150 |
| Torque output, Nm | 188 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 81 |
| Piston stroke, mm | 97 |
| Compression ratio | 14.0 |
| Features | HEV / PHEV |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | Dual CVVT |
| Turbocharging | no |
| Recommended engine oil | 0W-16 |
| Engine oil capacity, liter | 4.3 |
| Fuel type | petrol |
| Fuel consumption, L/100 km (for Hyundai Sonata Hybrid 2023) — city — highway — combined |
5.4 4.2 4.8 |
| Engine lifespan, km | ~250 000 |
The engine was installed on:
- Hyundai Sonata 8 (DN8) since 2019;
- Hyundai Tucson 4 (NX4) since 2021;
- Kia K5 3 (DL3) since 2019;
- Kia Sportage 5 (NQ5) since 2022.
Disadvantages of the Hyundai-Kia G4NR engine
- American owners praise the engine and complain only about electrical glitches;
- Several cases of battery failure have been described for the HEV version;
- Like all direct-injection engines, it suffers from carbon deposits on the intake valves;
- Outside its home markets, spare parts and used engines are hard to find.
Frequently asked questions about the Hyundai-Kia G4NR
How much power does the Hyundai-Kia G4NR make?
The Hyundai-Kia G4NR develops 150 hp and 188 Nm of torque.
How much oil does the Hyundai-Kia G4NR take and which one?
Engine oil capacity: 4.3 liters. Recommended oil: 0W-16.
Does the Hyundai-Kia G4NR have a timing belt or chain?
The Hyundai-Kia G4NR uses a timing chain.
Is the Hyundai-Kia G4NR turbocharged?
No, the Hyundai-Kia G4NR is naturally aspirated.
Does the Hyundai-Kia G4NR need valve clearance adjustment?
No, the Hyundai-Kia G4NR has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Hyundai-Kia G4NR last?
The typical lifespan of the Hyundai-Kia G4NR is ~250 000 km with proper maintenance.
What is the fuel consumption of the Hyundai-Kia G4NR?
Hyundai Sonata Hybrid 2023: city 5.4, highway 4.2, combined 4.8 L/100 km.
What cars was the Hyundai-Kia G4NR installed on?
Hyundai Sonata 8 (DN8) since 2019; Hyundai Tucson 4 (NX4) since 2021; Kia K5 3 (DL3) since 2019; Kia Sportage 5 (NQ5) since 2022.
What are the common problems of the Hyundai-Kia G4NR?
American owners praise the engine and complain only about electrical glitches. Several cases of battery failure have been described for the HEV version. All known problems.
