The Mercedes-Benz GLC 350e (X254), introduced in March 2024, represents the plug-in hybrid variant of the latest generation GLC SUV. Positioned as a mid-range offering within the X254 lineup, it combines a 2.0-liter turbocharged gasoline engine with an electric motor, delivering a combined system output of 313 horsepower. This model is primarily targeted towards buyers seeking a balance between fuel efficiency, reduced emissions, and the luxury associated with the Mercedes-Benz brand. The 350e is a key component of Mercedes-Benz’s strategy to offer increasingly electrified options across its vehicle portfolio, catering to growing environmental concerns and tightening emissions regulations, particularly in European and North American markets.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | GLC |
| Generation | GLC SUV (X254) |
| Type | GLC 350e (313 Hp) Plug-in Hybrid 4MATIC 9G-TRONIC |
| Start of production | March, 2024 |
| Powertrain Architecture | PHEV (Plug-in Hybrid Electric Vehicle) |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 10.2 l/100 km (23.1 US mpg, 27.7 UK mpg, 9.8 km/l) |
| Fuel consumption (extra urban) | 8.5 l/100 km (27.7 US mpg, 33.2 UK mpg, 11.8 km/l) |
| Fuel consumption (combined) | 9.4 l/100 km (25 US mpg, 30.1 UK mpg, 10.6 km/l) |
| Fuel Type | Petrol / electricity |
| Acceleration 0 – 60 mph | 6.2 sec |
| Maximum speed | 209 km/h (129.87 mph) |
| Emission standard | SULEV30 |
| Gross battery capacity | 31.2 kWh |
| Net (usable) battery capacity | 24.8 kWh |
| Battery technology | Lithium-ion (Li-Ion) |
| Battery location | Under the trunk |
| Recuperation output | 100 kW |
| All-electric range | 87 km (54.06 mi) |
| Average Energy consumption | 32.6 kWh/100 km (52.46 kWh/100 mi, 64 MPGe, 3.1 km/kWh, 1.9 mi/kWh) |
| Max speed (electric) | 140 km/h (86.99 mph) |
| Electric motor power | 134 Hp |
| Electric motor Torque | 441 Nm (325.26 lb.-ft.) |
| Electric motor location | Between the combustion engine and the transmission |
| Electric motor type | Synchronous |
| System power | 313 Hp |
| System torque | 550 Nm (405.66 lb.-ft.) |
| Engine Power | 201 Hp @ 6100 rpm |
| Engine Torque | 320 Nm @ 2000-4000 rpm (236.02 lb.-ft. @ 2000-4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 254 |
| Engine displacement | 1999 cm3 (121.99 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 92.4 mm (3.64 in.) |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-scroll turbo, Intercooler |
| Valvetrain | DOHC, CAMTRONIC |
| Engine oil capacity | 5.3 l (5.6 US qt | 4.66 UK qt) |
| Coolant | 15.2 l (16.06 US qt | 13.37 UK qt) |
| Fuel tank capacity | 49 l (12.94 US gal | 10.78 UK gal) |
| Length | 4716 mm (185.67 in.) |
| Width | 1890 mm (74.41 in.) |
| Width including mirrors | 2075 mm (81.69 in.) |
| Height | 1647 mm (64.84 in.) |
| Wheelbase | 2888 mm (113.7 in.) |
| Front track | 1627 mm (64.06 in.) |
| Rear track | 1640 mm (64.57 in.) |
| Front overhang | 843 mm (33.19 in.) |
| Rear overhang | 985 mm (38.78 in.) |
| Ride height (ground clearance) | 202-203 mm (7.95 – 7.99 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle | 11.8 m (38.71 ft.) |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Gearbox | 9 gears, automatic transmission G-TRONIC |
INTRODUCTION
The Mercedes-Benz GLC 350e, part of the X254 generation introduced in 2024, is a plug-in hybrid electric vehicle (PHEV) that blends internal combustion engine (ICE) power with electric drive. Built on the modular MRA2 platform shared with other Mercedes-Benz models, the 350e aims to provide a more environmentally friendly and fuel-efficient alternative to traditional GLC variants. It slots into the lineup as a premium offering, positioned above the base GLC models but below the more performance-oriented AMG variants. The X254 generation represents a significant upgrade over its predecessor (X253), with improvements in technology, interior refinement, and overall driving dynamics.
Powertrain & Engine Architecture
At the heart of the GLC 350e lies a 1.999-liter inline-four cylinder gasoline engine, designated the M 254. This engine utilizes direct fuel injection and is equipped with a twin-scroll turbocharger and intercooler to enhance performance and efficiency. The engine produces 201 horsepower at 6100 rpm and 320 Nm (236 lb-ft) of torque between 2000 and 4000 rpm. Paired with this is a synchronous electric motor, delivering 134 horsepower and 441 Nm (325 lb-ft) of torque. The electric motor is integrated between the engine and the 9G-TRONIC nine-speed automatic transmission. The combined system output is a substantial 313 horsepower and 550 Nm (406 lb-ft) of torque. The 24.8 kWh lithium-ion battery pack, located under the trunk floor, provides an all-electric range of approximately 87 kilometers (54 miles) according to EPA estimates. The battery supports fast charging, allowing for relatively quick replenishment of its capacity. The engine utilizes Mercedes-Benz’s CAMTRONIC variable valve lift system for optimized efficiency and performance.
Driving Characteristics
The GLC 350e offers a refined and comfortable driving experience. In electric mode, the vehicle operates silently and provides brisk acceleration for urban driving. Switching to hybrid mode seamlessly blends the power from the engine and electric motor, delivering strong and responsive performance. The 9G-TRONIC transmission provides smooth and precise gear changes, contributing to a relaxed driving experience. While not as overtly sporty as the AMG variants, the 350e offers ample power for highway cruising and overtaking. The electric motor’s instant torque provides a noticeable boost in acceleration. The vehicle’s weight, due to the battery pack, is higher than that of the conventional GLC models, which can be felt in cornering, but the well-tuned suspension minimizes body roll. The steering is precise and well-weighted, providing good feedback to the driver.
Equipment & Trim Levels
The GLC 350e comes standard with a high level of equipment, reflecting its premium positioning. Standard features typically include Mercedes-Benz’s MBUX infotainment system with a large touchscreen display, a digital instrument cluster, leather upholstery, heated front seats, and a panoramic sunroof. Safety features such as automatic emergency braking, lane keeping assist, and adaptive cruise control are also standard. Optional extras include advanced driver-assistance systems, premium audio systems, and various interior customization options. Trim levels may vary depending on the market, but generally offer packages that add features such as upgraded leather, wood trim, and more sophisticated driver-assistance technologies.
Chassis & Braking
The GLC 350e utilizes a sophisticated chassis design featuring a four-link front suspension and a multi-link rear suspension. The rear suspension incorporates air suspension, providing adjustable ride height and improved comfort. The vehicle is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS), electronic stability control (ESC), and traction control are standard safety features. The suspension is tuned to balance comfort and handling, providing a smooth ride while maintaining good control in corners. The steering system is electric power-assisted, offering precise and responsive steering feel.
Market Reception & Comparison
The GLC 350e has been generally well-received by automotive critics, who praise its fuel efficiency, refined driving experience, and luxurious interior. Compared to the conventional GLC 300, the 350e offers significantly improved fuel economy and the ability to drive in all-electric mode, reducing emissions. However, it comes at a higher price point. Compared to the GLC 43 AMG, the 350e prioritizes efficiency and comfort over outright performance. The 350e’s real-world fuel economy is highly dependent on driving habits and charging frequency, but it consistently delivers impressive MPG figures when utilized effectively as a plug-in hybrid.
Legacy
The GLC 350e represents a significant step forward in Mercedes-Benz’s electrification strategy. The powertrain, while relatively new, is expected to prove reliable, benefiting from Mercedes-Benz’s engineering expertise. The long-term durability of the battery pack will be a key factor in the vehicle’s overall reliability. On the used car market, the GLC 350e is likely to hold its value well, particularly as demand for plug-in hybrid vehicles continues to grow. The combination of luxury, efficiency, and technology makes it an attractive option for buyers seeking a premium SUV with a reduced environmental impact.
