The Citroen C4 X 1.2 (136 Hp) Mild Hybrid e-DCS, introduced in October 2024 as part of the Phase II update, represents a compelling entry point into Citroen’s distinctive fastback crossover range. Positioned as a mid-range offering, this variant combines a 1.2-liter turbocharged three-cylinder gasoline engine with a 48-volt mild hybrid system, utilizing Citroen’s e-DCS (electric Dual Clutch System) automatic transmission. The C4 X, launched initially in 2022, aims to blend the comfort of a traditional sedan with the elevated driving position and practicality of a crossover, targeting buyers seeking a stylish and efficient alternative to conventional hatchbacks and SUVs. Production of this specific configuration ran for a brief period, concluding in March 2025.
Technical Specifications
| Brand | Citroen |
| Model | C4 X |
| Generation | C4 X (Phase II, 2024) |
| Type (Engine) | 1.2 (136 Hp) Mild Hybrid e-DCS |
| Start of production | October, 2024 |
| End of production | March, 2025 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | SUV, Crossover, Fastback |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption at Low speed (WLTP) | 4.3 l/100 km (54.7 US mpg) |
| Fuel consumption at Medium speed (WLTP) | 4.2 l/100 km (56 US mpg) |
| Fuel consumption at high speed (WLTP) | 4.3 l/100 km (54.7 US mpg) |
| Fuel consumption at very high speed (WLTP) | 5.5 l/100 km (42.8 US mpg) |
| Combined fuel consumption (WLTP) | 4.7 l/100 km (50 US mpg) |
| CO2 emissions (WLTP) | 106 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.1 sec |
| Acceleration 0 – 62 mph | 8.1 sec |
| Acceleration 0 – 60 mph | 7.7 sec |
| Maximum speed | 210 km/h (130.49 mph) |
| Emission standard | Euro 6e |
| Weight-to-power ratio | 9.9 kg/Hp |
| Weight-to-torque ratio | 5.8 kg/Nm |
| Gross battery capacity | 0.89 kWh |
| Net (usable) battery capacity | 0.432 kWh |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Electric motor power | 28 Hp |
| Electric motor Torque | 55 Nm (40.57 lb.-ft.) |
| Power | 136 Hp @ 5500 rpm |
| Torque | 230 Nm @ 1750 rpm (169.64 lb.-ft. @ 1750 rpm) |
| Engine displacement | 1199 cm3 (73.17 cu. in.) |
| Number of cylinders | 3 |
| Cylinder Bore | 75 mm (2.95 in.) |
| Piston Stroke | 90.5 mm (3.56 in.) |
| Engine oil capacity | 3.5 l (3.7 US qt | 3.08 UK qt) |
| Kerb Weight | 1344 kg (2963.01 lbs.) |
| Max. weight | 1825 kg (4023.44 lbs.) |
| Trunk (boot) space – minimum | 510 l (18.01 cu. ft.) |
| Trunk (boot) space – maximum | 1360 l (48.03 cu. ft.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Length | 4580 mm (180.31 in.) |
| Width | 1800 mm (70.87 in.) |
| Height | 1525 mm (60.04 in.) |
| Wheelbase | 2670 mm (105.12 in.) |
| Number of gears | 6 |
| Type of gearbox | automatic transmission e-DCS |
Powertrain & Engine Architecture
At the heart of the C4 X 1.2 Mild Hybrid e-DCS lies the PSA Group’s (now Stellantis) EB2DT engine – a 1.2-liter, inline three-cylinder gasoline engine. This engine utilizes direct fuel injection and is coupled with a single turbocharger and intercooler to enhance efficiency and power output. The engine code is typically associated with variations of this engine family. The mild hybrid system incorporates a 48-volt battery and an electric motor, providing a limited amount of electric assistance during acceleration and allowing for regenerative braking to recoup energy. The e-DCS transmission is a six-speed automatic that integrates the electric motor, contributing to smoother gear changes and improved fuel economy. Unlike a full hybrid, the electric motor cannot propel the vehicle on its own; it primarily assists the gasoline engine.
Driving Characteristics
The 136 hp output, combined with the 230 Nm (169.64 lb-ft) of torque, provides adequate performance for everyday driving. Acceleration from 0 to 100 km/h (0-62 mph) takes approximately 8.1 seconds. The e-DCS transmission is tuned for comfort and efficiency, with gear changes generally smooth and unobtrusive. Compared to the more powerful 1.5 BlueHDi diesel variants, the 1.2 Mild Hybrid offers less outright acceleration but compensates with a quieter and more refined driving experience. The mild hybrid system provides a subtle boost during initial acceleration, helping to reduce turbo lag. The gear ratios are optimized for fuel efficiency, meaning the engine can feel slightly strained when overtaking at higher speeds.
Equipment & Trim Levels
The C4 X 1.2 Mild Hybrid e-DCS typically came equipped with a generous level of standard features. These included a 10-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, automatic climate control, rear parking sensors, and a suite of advanced driver-assistance systems (ADAS) such as lane departure warning and automatic emergency braking. Interior upholstery was generally cloth, with options for upgraded materials available. Higher trim levels offered features like a digital instrument cluster, panoramic sunroof, and adaptive cruise control. The overall interior design emphasized comfort and practicality, with a focus on user-friendly controls and ample storage space.
Chassis & Braking
The C4 X utilizes a McPherson strut front suspension and a torsion beam rear suspension. This setup provides a good balance between ride comfort and handling. The front brakes are ventilated discs, while the rear brakes are discs. The steering is electric power-assisted, offering a light and responsive feel. The suspension is tuned to prioritize comfort, absorbing bumps and imperfections in the road surface effectively. Stabilizer bars are fitted to both the front and rear axles to reduce body roll during cornering. The C4 X’s weight of approximately 1344 kg (2963 lbs) is relatively moderate for its class, contributing to its manageable handling characteristics.
Market Reception & Comparison
The Citroen C4 X 1.2 Mild Hybrid e-DCS was generally well-received by critics for its stylish design, comfortable ride, and fuel efficiency. However, some reviewers noted that the engine could feel underpowered when fully loaded or driving uphill. Compared to the diesel variants, the 1.2 Mild Hybrid offered lower running costs but slightly reduced performance. Fuel economy figures of around 4.7 l/100 km (50 US mpg) were competitive within its segment. The C4 X aimed to appeal to buyers who prioritized comfort and style over outright performance, offering a unique alternative to traditional hatchbacks and SUVs.
Legacy
The Citroen C4 X 1.2 Mild Hybrid e-DCS, despite its short production run, represents an interesting step in Citroen’s evolution towards electrified powertrains. The 1.2 PureTech engine, while generally reliable, has been subject to some reports of timing chain issues in certain applications, so regular maintenance and oil changes are crucial for long-term durability. The mild hybrid system itself is relatively simple and robust, with fewer components compared to a full hybrid system. On the used car market, these models are likely to appeal to buyers seeking a fuel-efficient and stylish crossover with a comfortable ride, provided they are well-maintained and have a documented service history.
