The Mercedes-Benz GLC 300e 4MATIC, introduced in July 2023, represents a plug-in hybrid variant within the C254 generation of the GLC Coupe. Positioned as a mid-range offering within the GLC Coupe lineup, it combines a 2.0-liter turbocharged gasoline engine with an electric motor, offering a balance of performance, efficiency, and all-weather capability through Mercedes-Benz’s 4MATIC all-wheel-drive system. This model is a key component of Mercedes-Benz’s strategy to offer increasingly electrified options, catering to markets with growing environmental regulations and consumer demand for sustainable luxury vehicles. The 300e utilizes the 9G-TRONIC nine-speed automatic transmission, optimized for both electric and internal combustion operation.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | GLC |
| Generation | GLC Coupe (C254) |
| Type | GLC 300e (313 Hp) Plug-in Hybrid 4MATIC 9G-TRONIC |
| Start of production | July, 2023 |
| Powertrain Architecture | PHEV (Plug-in Hybrid Electric Vehicle) |
| Body type | Coupe, SUV |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 0.5-0.6 l/100 km (470.4 – 392 US mpg, 565 – 470.8 UK mpg, 200 – 166.7 km/l) |
| CO2 emissions (WLTP) | 11-15 g/km |
| Fuel Type | Petrol / electricity |
| Acceleration 0 – 100 km/h | 6.7 sec |
| Acceleration 0 – 62 mph | 6.7 sec |
| Acceleration 0 – 60 mph | 6.4 sec |
| Maximum speed | 220 km/h (136.7 mph) |
| Emission standard | Euro 6d-ISC-FCM |
| Weight-to-power ratio | 7.4 kg/Hp, 135.5 Hp/tonne |
| Weight-to-torque ratio | 4.2 kg/Nm, 238.1 Nm/tonne |
| Gross battery capacity | 31.2 kWh |
| Battery technology | Lithium-ion (Li-Ion) |
| Battery location | Inside the trunk |
| All-electric range (WLTP) | 119-131 km (73.94 – 81.4 mi) |
| Average Energy consumption (WLTP) | 20.2-22.4 kWh/100 km (32.51 – 36.05 kWh/100 mi, 104 – 93 MPGe, 5 – 4.5 km/kWh, 3.1 – 2.8 mi/kWh) |
| Max speed (electric) | 140 km/h (86.99 mph) |
| Electric motor power | 136 Hp |
| Electric motor Torque | 440 Nm (324.53 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.) |
| Power | 204 Hp @ 6100 rpm (102.1 Hp/l) |
| 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 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-scroll turbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6 l (6.34 US qt | 5.28 UK qt) |
| Kerb Weight | 2310 kg (5092.68 lbs.) |
| Max. weight | 2830 kg (6239.08 lbs.) |
| Max load | 520 kg (1146.4 lbs.) |
| Trunk (boot) space – minimum | 390 l (13.77 cu. ft.) |
| Trunk (boot) space – maximum | 1335 l (47.15 cu. ft.) |
| Fuel tank capacity | 49 l (12.94 US gal | 10.78 UK gal) |
| Permitted trailer load with brakes (12%) | 2000 kg (4409.25 lbs.) |
| Permitted towbar download | 100 kg (220.46 lbs.) |
| Length | 4769 mm (187.76 in.) |
| Width | 1920 mm (75.59 in.) |
| Width including mirrors | 2076 mm (81.73 in.) |
| Height | 1606 mm (63.23 in.) |
| Wheelbase | 2888 mm (113.7 in.) |
| Front track | 1628 mm (64.09 in.) |
| Rear (Back) track | 1642 mm (64.65 in.) |
| Front overhang | 848 mm (33.39 in.) |
| Rear overhang | 1033 mm (40.67 in.) |
| Ride height (ground clearance) | 158 mm (6.22 in.) |
| Minimum turning circle (turning diameter) | 10.9 m (35.76 ft.) |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Number of gears and type of gearbox | 9 gears, automatic transmission G-TRONIC |
Powertrain & Engine Architecture
The GLC 300e’s powertrain centers around the M 254 2.0-liter inline-four cylinder gasoline engine. This engine utilizes direct fuel injection and a twin-scroll turbocharger to produce 204 horsepower at 6100 rpm and 320 Nm (236 lb-ft) of torque between 2000 and 4000 rpm. The engine is paired with a 136 hp electric motor, integrated between the engine and the 9G-TRONIC nine-speed automatic transmission. This configuration allows for both electric-only driving and combined operation, with the system delivering a total output of 313 hp and 550 Nm (405.66 lb-ft) of torque. The 31.2 kWh lithium-ion battery pack, located under the trunk floor, provides an all-electric range of 119-131 km (73.94 – 81.4 miles) according to WLTP standards. The 9G-TRONIC transmission is specifically calibrated to work seamlessly with the electric motor, offering smooth transitions and optimized gear ratios for both efficiency and performance.
Driving Characteristics
The GLC 300e offers a refined driving experience, prioritizing comfort and efficiency. In electric mode, the vehicle provides near-silent acceleration and responsive torque delivery. The combined powertrain delivers brisk acceleration, achieving 0-100 km/h (0-62 mph) in 6.7 seconds. Compared to non-hybrid GLC models with similar horsepower, the 300e benefits from the instant torque of the electric motor, resulting in a more immediate and responsive feel. The 9G-TRONIC transmission contributes to smooth gear changes, and the automatic mode intelligently manages the interplay between the gasoline engine and electric motor. While not as overtly sporty as some higher-performance GLC variants, the 300e provides ample power for everyday driving and highway cruising.
Equipment & Trim Levels
The GLC 300e typically comes standard with a high level of equipment, reflecting its position as a premium vehicle. Standard features generally include Mercedes-Benz’s MBUX infotainment system with a large touchscreen display, premium upholstery, automatic climate control, and a comprehensive suite of safety features such as automatic emergency braking, lane keeping assist, and adaptive cruise control. Optional extras often include upgraded audio systems, panoramic sunroofs, and various driver assistance packages. Interior trim options typically include wood, aluminum, and carbon fiber accents. The specific trim levels and available options can vary depending on the market.
Chassis & Braking
The GLC 300e utilizes a fully independent suspension system, designed to provide a comfortable ride and stable handling. The front suspension features multi-link struts, while the rear utilizes a multi-link setup. Ventilated disc brakes are fitted on all four wheels, providing ample stopping power. The vehicle is equipped with ABS (Anti-lock Braking System) and other electronic stability control systems. Due to the added weight of the battery pack, the suspension may be slightly stiffer compared to non-hybrid GLC models to maintain handling balance.
Market Reception & Comparison
The GLC 300e has been generally well-received by automotive critics, praised for its fuel efficiency, refined driving experience, and luxurious interior. Compared to other GLC variants, the 300e offers significantly better fuel economy and the ability to drive in all-electric mode, making it an attractive option for environmentally conscious buyers. However, the added weight of the battery pack can slightly impact handling agility compared to lighter models. The 300e’s price point typically places it above the base GLC models but below the higher-performance AMG variants.
Legacy
The Mercedes-Benz GLC 300e represents a significant step in the brand’s electrification strategy. The long-term reliability of the powertrain remains to be fully assessed, but Mercedes-Benz has a strong track record of building durable and reliable vehicles. The hybrid system’s complexity may require specialized maintenance, but the potential for reduced fuel costs and environmental impact makes it a compelling option for many buyers. On the used car market, the 300e is expected to hold its value well, particularly as demand for plug-in hybrid vehicles continues to grow.
