The Mercedes-Benz GLC 300 4MATIC Coupe (C254) represents the second generation of the GLC Coupe, entering production in July 2023. Positioned as a mid-range offering within the GLC Coupe lineup, it blends the practicality of a compact SUV with the sleeker profile of a coupe. This variant is a key component of Mercedes-Benz’s strategy to offer a diverse range of SUV options, catering to customers who prioritize both style and functionality. The C254 generation builds upon the success of the first-generation GLC Coupe, incorporating updated technology, improved efficiency, and a refined driving experience. It competes directly with rivals like the BMW X4 and Audi Q4 Sportback.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | GLC |
| Generation | GLC Coupe (C254) |
| Type | GLC 300 (258 Hp) Mild Hybrid 4MATIC 9G-TRONIC |
| Start of production | July, 2023 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Coupe, SUV |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 7.3-8.2 l/100 km (32.2 – 28.7 US mpg, 38.7 – 34.4 UK mpg, 13.7 – 12.2 km/l) |
| CO2 emissions (WLTP) | 165-185 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.3 sec |
| Acceleration 0 – 62 mph | 6.3 sec |
| Acceleration 0 – 60 mph | 6 sec |
| Maximum speed | 246 km/h (152.86 mph) |
| Emission standard | Euro 6d-ISC-FCM |
| Weight-to-power ratio | 7.5 kg/Hp, 132.6 Hp/tonne |
| Weight-to-torque ratio | 4.9 kg/Nm, 205.7 Nm/tonne |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Electric motor power | 23 Hp |
| Electric motor Torque | 200 Nm (147.51 lb.-ft.) |
| Electric motor location | Between the combustion engine and the transmission |
| Power | 258 Hp @ 5800 rpm |
| Torque | 400 Nm @ 2000-3200 rpm (295.02 lb.-ft. @ 2000-3200 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 | 1945 kg (4287.99 lbs.) |
| Max. weight | 2510 kg (5533.6 lbs.) |
| Max load | 565 kg (1245.61 lbs.) |
| Trunk (boot) space – minimum | 545 l (19.25 cu. ft.) |
| Trunk (boot) space – maximum | 1490 l (52.62 cu. ft.) |
| Fuel tank capacity | 62 l (16.38 US gal | 13.64 UK gal) |
| Permitted trailer load with brakes (12%) | 2400 kg (5291.09 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 |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 9 gears, automatic transmission G-TRONIC |
| Tires size | 235/60 R18 |
| Wheel rims size | 8J x 18 |
Powertrain & Engine Architecture
The GLC 300 4MATIC Coupe is powered by the M 254 engine, a 2.0-liter inline-four cylinder gasoline engine. This engine utilizes direct injection and a twin-scroll turbocharger to deliver 258 horsepower at 5800 rpm and 400 Nm (295 lb-ft) of torque between 2000 and 3200 rpm. A key feature of this powertrain is its 48-volt mild hybrid system. This system incorporates a 23-horsepower electric motor integrated between the engine and the 9G-TRONIC automatic transmission. The mild hybrid system enables functions like extended coasting, smoother start/stop operation, and a small boost in power during acceleration. The 9G-TRONIC transmission, a nine-speed automatic, is known for its smooth shifting and wide gear ratio spread, contributing to both fuel efficiency and performance.
Driving Characteristics
The GLC 300 4MATIC Coupe offers a comfortable and refined driving experience. The 9G-TRONIC transmission is well-tuned for everyday driving, providing seamless gear changes. While not a performance-oriented variant, the 258 hp engine provides adequate acceleration, achieving 0-60 mph in approximately 6 seconds. The 4MATIC all-wheel-drive system ensures confident handling in various weather conditions. Compared to higher-performance GLC models (like the AMG variants), the 300 prioritizes fuel economy and comfort over outright speed. The mild hybrid system contributes to a more responsive feel at lower speeds and helps to reduce fuel consumption. The steering is precise, though it may lack the directness found in some sportier SUVs.
Equipment & Trim Levels
The GLC 300 4MATIC Coupe comes standard with a comprehensive suite of features, including Mercedes-Benz User Experience (MBUX) infotainment system with a 12.3-inch touchscreen display, a digital instrument cluster, and a premium sound system. Standard interior appointments include MB-Tex artificial leather upholstery, power-adjustable front seats, and dual-zone automatic climate control. Available options include genuine leather upholstery, heated and ventilated front seats, a panoramic sunroof, and advanced driver-assistance systems such as adaptive cruise control and lane-keeping assist. Exterior options include various wheel designs, paint colors, and styling packages.
Chassis & Braking
The GLC 300 4MATIC Coupe features a fully independent suspension system, with coil springs and adaptive dampers available as an option. The suspension is tuned to provide a balance between comfort and handling. The vehicle is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Standard safety features include ABS, electronic stability control, and a suite of airbags. The chassis is designed to minimize body roll during cornering, enhancing stability and driver confidence.
Market Reception & Comparison
The GLC 300 4MATIC Coupe has been well-received by automotive critics, who praise its comfortable ride, refined interior, and advanced technology. Fuel economy is competitive for its class, with the mild hybrid system contributing to improved efficiency. Compared to the GLC 300 SUV, the Coupe variant offers a more stylish appearance but sacrifices some rear headroom and cargo space. Against rivals like the BMW X4 and Audi Q4 Sportback, the GLC 300 Coupe stands out with its luxurious interior and user-friendly infotainment system. Reliability reports suggest that the M 254 engine and 9G-TRONIC transmission are generally reliable, though regular maintenance is essential.
Legacy
The Mercedes-Benz GLC 300 4MATIC Coupe (C254) represents a significant step forward in terms of technology and refinement. The integration of the mild hybrid system demonstrates Mercedes-Benz’s commitment to improving fuel efficiency and reducing emissions. As a used vehicle, the C254 generation is expected to hold its value well, thanks to its strong brand reputation and desirable features. The M 254 engine, with its combination of power, efficiency, and reliability, is likely to become a popular choice in the used car market. The 9G-TRONIC transmission is also known for its durability and smooth operation, contributing to the long-term appeal of this variant.
