The Hyundai Sonata VII (LF facelift), produced from 2018 to 2019, represented a significant refresh of the already popular seventh-generation Sonata. Within the lineup, the 2.4 GDi (185 Hp) SHIFTRONIC variant occupied a middle-ground position, offering a balance between performance, fuel efficiency, and affordability. This model aimed to appeal to a broad range of family sedan buyers seeking a comfortable and well-equipped vehicle. The “LF facelift” designation refers to the styling and technological updates applied to the original LF Sonata, enhancing its competitiveness in the mid-size sedan segment.
Technical Specifications
| Brand | Hyundai |
| Model | Sonata |
| Generation | Sonata VII (LF facelift 2017) |
| Type (Engine) | 2.4 GDi (185 Hp) SHIFTRONIC |
| Start of production | 2018 |
| End of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 11.3 l/100 km (20.8 US mpg) |
| Fuel consumption (extra urban) | 7.8-8.1 l/100 km (29 – 30.2 US mpg) |
| Fuel consumption (combined) | 9.7-10.1 l/100 km (23.3 – 24.2 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 8 kg/Hp |
| Weight-to-torque ratio | 6.1 kg/Nm |
| Power | 185 Hp @ 6000 rpm |
| Power per litre | 78.4 Hp/l |
| Torque | 241 Nm @ 4000 rpm (177.75 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | Theta II / G4KJ |
| Engine displacement | 2359 cm3 (143.96 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 88 mm (3.46 in.) |
| Piston Stroke | 97 mm (3.82 in.) |
| Compression ratio | 11.3:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 4.8 l (5.07 US qt | 4.22 UK qt) |
| Coolant capacity | 7.2 l (7.61 US qt | 6.34 UK qt) |
| Kerb Weight | 1473 kg (3247.41 lbs.) |
| Trunk (boot) space | 462 l (16.32 cu. ft.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Length | 4854 mm (191.1 in.) |
| Width | 1864 mm (73.39 in.) |
| Height | 1476 mm (58.11 in.) |
| Wheelbase | 2804 mm (110.39 in.) |
| Front track | 1603-1613 mm (63.11 – 63.5 in.) |
| Rear track | 1608-1621 mm (63.31 – 63.82 in.) |
| Ride height (ground clearance) | 135 mm (5.31 in.) |
| Drag coefficient (Cd) | 0.27 |
| Minimum turning circle | 10.9 m (35.76 ft.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 6 |
| Gearbox type | Automatic transmission SHIFTRONIC |
| Front suspension | Independent type McPherson |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Tires size | 205/65 R16; 215/55 R17 |
| Wheel rims size | 6.5J x 16; 7.0J x 17 |
Powertrain & Engine Architecture
The heart of the Sonata 2.4 GDi SHIFTRONIC is the Hyundai Theta II engine, specifically the G4KJ code. This 2.4-liter inline-four cylinder engine utilizes direct fuel injection (GDi) to maximize efficiency and power output. Direct injection allows fuel to be sprayed directly into the combustion chamber, resulting in a more complete burn and improved fuel economy. The engine features a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing airflow for enhanced performance. The 11.3:1 compression ratio further contributes to the engine’s efficiency. Paired with this engine is a six-speed automatic transmission branded as “SHIFTRONIC.” This transmission offers a degree of driver control, allowing for manual gear selection while still providing the convenience of an automatic. The SHIFTRONIC system aimed to provide a more engaging driving experience than a traditional automatic.
Driving Characteristics
The 185 horsepower and 241 Nm (177.75 lb-ft) of torque produced by the 2.4 GDi engine provided adequate, though not exhilarating, performance. Acceleration from 0 to 60 mph was typically in the 9-10 second range. The SHIFTRONIC transmission, while offering some manual control, was tuned for smooth and comfortable shifts rather than aggressive performance. Compared to the more powerful 2.0T turbocharged engine option, the 2.4 GDi felt less responsive, particularly during overtaking maneuvers. However, it offered a more linear power delivery and better fuel economy. The automatic transmission’s gear ratios were optimized for everyday driving, prioritizing fuel efficiency over outright speed. The 2.4L engine was noticeably quieter and smoother than the base 2.0L engine, offering a more refined driving experience.
Equipment & Trim Levels
The 2.4 GDi SHIFTRONIC trim typically included standard features such as air conditioning, power windows and locks, a touchscreen infotainment system with Bluetooth connectivity, and a rearview camera. Higher trim levels added features like leather upholstery, a sunroof, heated seats, and advanced safety technologies like blind-spot monitoring and lane departure warning. Interior upholstery was generally cloth on the base trims, with leather options available on higher-spec models. Dashboard configurations were consistent across the 2.4 GDi models, featuring a user-friendly layout with intuitive controls. Optional extras included a premium sound system, navigation, and various appearance packages.
Chassis & Braking
The Sonata 2.4 GDi utilized an independent McPherson strut suspension in the front and an independent multi-link suspension in the rear. This suspension setup provided a comfortable ride quality while maintaining reasonable handling characteristics. The front brakes were ventilated discs, providing ample stopping power, while the rear brakes were solid discs. Anti-lock braking system (ABS) was standard. Stabilizer bars were fitted both front and rear to reduce body roll during cornering. The suspension tuning was geared towards comfort, making it well-suited for everyday commuting and long-distance driving. The weight distribution was fairly balanced, contributing to predictable handling.
Market Reception & Comparison
Critics generally praised the Sonata 2.4 GDi SHIFTRONIC for its comfortable ride, spacious interior, and good value for money. However, some reviewers noted that the engine lacked the punch of the turbocharged options and that the transmission could feel somewhat sluggish at times. Fuel economy was considered competitive for its class, averaging around 23-29 mpg combined. Compared to the 2.0T models, the 2.4 GDi offered a lower purchase price and potentially lower maintenance costs, but at the expense of performance. The 2.4 GDi also offered a more refined driving experience than the base 2.0L engine, making it a popular choice for buyers prioritizing comfort and fuel efficiency.
Legacy
The Theta II engine family, including the G4KJ variant, has proven to be generally reliable, although some early versions were subject to recalls related to engine knocking. The SHIFTRONIC transmission has also demonstrated reasonable durability with proper maintenance. On the used car market, the Sonata 2.4 GDi SHIFTRONIC represents a solid value proposition, offering a comfortable and well-equipped sedan at an affordable price. Regular maintenance, including oil changes and transmission fluid flushes, is crucial to ensure the long-term reliability of this powertrain. The Sonata’s reputation for reliability and affordability has contributed to its continued popularity in the used car market.
