The Proton X70 1.8 TGDI Automatic, launched in 2018 and produced through August 2024, represents a significant step for Proton, Malaysia’s national automotive manufacturer, into the competitive compact SUV segment. This variant, powered by Proton’s first turbocharged gasoline direct injection (TGDI) engine, was positioned as a mid-range offering within the X70 lineup, bridging the gap between the more basic 1.5L variants and the later, more premium 1.5 TGDI models. The X70 itself was a crucial model for Proton, marking a shift towards improved quality, technology, and design, largely influenced by collaboration with Geely, its Chinese parent company. It primarily targeted families and individuals seeking a spacious, well-equipped, and relatively affordable SUV in the Southeast Asian market.
Technical Specifications
| Brand | Proton |
| Model | X70 |
| Generation | X70 |
| Type (Engine) | 1.8 TGDI (184 Hp) Automatic |
| Start of production | 2018 |
| End of production | August, 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 9 kg/Hp, 110.8 Hp/tonne |
| Weight-to-torque ratio | 5.8 kg/Nm, 171.7 Nm/tonne |
| Power | 184 Hp @ 5500 rpm |
| Power per litre | 102.3 Hp/l |
| Torque | 285 Nm @ 1700-4400 rpm (210.21 lb.-ft. @ 1700-4400 rpm) |
| Engine layout | Front, Transverse |
| Engine displacement | 1799 cm3 (109.78 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Kerb Weight | 1660-1695 kg (3659.67 – 3736.84 lbs.) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Length | 4519 mm (177.91 in.) |
| Width | 1831 mm (72.09 in.) |
| Height | 1694 mm (66.69 in.) |
| Wheelbase | 2670 mm (105.12 in.) |
| Front track | 1562 mm (61.5 in.) |
| Rear (Back) track | 1557 mm (61.3 in.) |
| Minimum turning circle | 11.0 m (36.09 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission |
| Front suspension | Independent type McPherson |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/65 R17; 225/60 R18; 225/55 R19 |
| Wheel rims size | 17; 18; 19 |
Powertrain & Engine Architecture
The heart of the X70 1.8 TGDI is Proton’s 1.8-liter inline-four cylinder engine, designated as the CFE (Compact Fuel Efficient) series. This engine utilizes direct fuel injection and a single-scroll turbocharger with an intercooler to deliver increased power and efficiency. The engine code is closely related to Geely’s 1.8L TGDI engine, benefiting from Geely’s engineering expertise. The DOHC (Double Overhead Camshaft) valvetrain, with four valves per cylinder, optimizes airflow for improved performance. The engine is paired with a six-speed automatic transmission, sourced from Aisin, a well-respected Japanese transmission manufacturer. This transmission is known for its smooth shifting and reliability. The automatic transmission was specifically tuned to work with the engine’s torque curve, providing adequate acceleration and drivability.
Driving Characteristics
The 184 horsepower and 285 Nm (210 lb-ft) of torque offered by the 1.8 TGDI engine provided a noticeable improvement in performance compared to the naturally aspirated 1.5L variants of the X70. While not a sports SUV, the X70 1.8 TGDI offered sufficient power for comfortable highway cruising and overtaking maneuvers. The six-speed automatic transmission generally shifted smoothly, although some drivers noted a slight hesitation during kickdown. The front-wheel-drive configuration provided predictable handling, but lacked the all-weather capability of an all-wheel-drive system. Compared to the later 1.5 TGDI models, the 1.8L engine offered a more linear power delivery, while the 1.5 TGDI tended to have more pronounced turbo lag. The gear ratios were optimized for fuel efficiency, but at the expense of some outright acceleration.
Equipment & Trim Levels
The X70 1.8 TGDI Automatic typically came standard with features such as leather upholstery, a touchscreen infotainment system with smartphone connectivity (Apple CarPlay and Android Auto), automatic climate control, and a reverse camera. Higher trim levels added features like a panoramic sunroof, power-adjustable driver’s seat, and advanced driver-assistance systems (ADAS) such as adaptive cruise control and lane departure warning. Interior color schemes generally included dark shades of black and brown. Optional extras included premium sound systems and body kits.
Chassis & Braking
The X70 1.8 TGDI utilized an independent McPherson strut suspension at the front and an independent multi-link suspension at the rear, providing a comfortable ride quality. A stabilizer bar was included on both axles to reduce body roll during cornering. The braking system consisted of ventilated discs at the front and solid discs at the rear, coupled with an Anti-lock Braking System (ABS) to enhance safety. The steering system employed an electric power steering (EPS) system, offering light and precise steering feel.
Market Reception & Comparison
The Proton X70 1.8 TGDI was generally well-received by critics and consumers in Malaysia and other Southeast Asian markets. It was praised for its spacious interior, comfortable ride, and relatively affordable price point. However, some reviewers noted that the interior materials could be improved, and the engine’s performance, while adequate, wasn’t class-leading. Compared to competitors like the Honda CR-V and Mazda CX-5, the X70 offered a more value-oriented proposition. Fuel economy was competitive, averaging around 7.6-8.5 liters per 100 kilometers (approximately 28-33 mpg) in mixed driving conditions. Reliability reports were generally positive, although some owners reported minor issues with the infotainment system.
Legacy
The Proton X70 1.8 TGDI played a pivotal role in revitalizing the Proton brand and establishing it as a serious contender in the SUV market. The 1.8 TGDI engine, while later superseded by the 1.5 TGDI, proved to be a reliable and capable powerplant. In the used car market, the X70 1.8 TGDI remains a popular choice, offering a good balance of features, comfort, and affordability. Regular maintenance, including timely oil changes and adherence to the manufacturer’s service schedule, is crucial for ensuring the long-term reliability of this powertrain. The X70’s success paved the way for Proton to develop and launch further SUV models, solidifying its position as a key player in the Malaysian automotive industry.
