The Mercedes-Benz GLC 250d 4MATIC G-TRONIC, produced from June 2015 to April 2019, represents a key variant within the first generation (X253) of the GLC SUV. Positioned as a mid-range offering, it balanced fuel efficiency with respectable performance, appealing to buyers seeking a practical yet refined luxury crossover. This model played a significant role in establishing the GLC as a popular choice in the premium compact SUV segment, particularly in European markets where diesel engines remained highly favored. The 250d utilized a sophisticated diesel powertrain paired with a nine-speed automatic transmission and Mercedes’ 4MATIC all-wheel-drive system.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | GLC |
| Generation | GLC SUV (X253) |
| Type | GLC 250d (204 Hp) 4MATIC G-TRONIC |
| Start of production | June, 2015 |
| End of production | April, 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 6.3-5.5 l/100 km (37.3 – 42.8 US mpg, 44.8 – 51.4 UK mpg, 15.9 – 18.2 km/l) |
| Fuel consumption (extra urban) | 5.1-4.7 l/100 km (46.1 – 50 US mpg, 55.4 – 60.1 UK mpg, 19.6 – 21.3 km/l) |
| Fuel consumption (combined) | 5.5-5.0 l/100 km (42.8 – 47 US mpg, 51.4 – 56.5 UK mpg, 18.2 – 20 km/l) |
| CO2 emissions | 143-129 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.6 sec |
| Acceleration 0 – 62 mph | 7.6 sec |
| Acceleration 0 – 60 mph | 7.2 sec |
| Maximum speed | 222 km/h (137.94 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.7 kg/Hp, 115.3 Hp/tonne |
| Weight-to-torque ratio | 3.5 kg/Nm, 282.5 Nm/tonne |
| Power | 204 Hp @ 3800 rpm |
| Power per litre | 95.2 Hp/l |
| Torque | 500 Nm @ 1600-1800 rpm (368.78 lb.-ft. @ 1600-1800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 651 DE 22 LA/651.921 |
| Engine displacement | 2143 cm3 (130.77 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Compression ratio | 16.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | BiTurbo, Intercooler |
| Engine oil capacity | 6 l (6.34 US qt | 5.28 UK qt) |
| Coolant | 10 l (10.57 US qt | 8.8 UK qt) |
| Kerb Weight | 1770 kg (3902.18 lbs) |
| Max. weight | 2500 kg (5511.56 lbs) |
| Max load | 730 kg (1609.37 lbs) |
| Trunk (boot) space – minimum | 550 l (19.42 cu. ft) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Max. roof load | 75 kg (165.35 lbs) |
| Permitted trailer load with brakes (12%) | 2500 kg (5511.56 lbs) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs) |
| Length | 4656 mm (183.31 in) |
| Width | 1890 mm (74.41 in) |
| Height | 1639 mm (64.53 in) |
| Wheelbase | 2873 mm (113.11 in) |
| Front track | 1621 mm (63.82 in) |
| Rear (Back) track | 1617 mm (63.66 in) |
| Minimum turning circle | 11.80 m (38.71 ft) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 9 gears, automatic transmission G-TRONIC |
| Front suspension | Independent multi-link suspension |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 235/65 R17 |
| Wheel rims size | 17 |
Powertrain & Engine Architecture
The GLC 250d was powered by the OM 651 DE 22 LA, a 2.1-liter inline-four cylinder diesel engine. This engine, a mainstay in the Mercedes-Benz lineup, featured common-rail direct injection and a sophisticated bi-turbocharger system. The twin turbos, one larger and one smaller, were configured to provide both strong low-end torque and sustained power throughout the rev range. The engine produced 204 horsepower at 3800 rpm and a substantial 500 Nm (368 lb-ft) of torque between 1600 and 1800 rpm. This torque output was a key characteristic, providing effortless acceleration and strong pulling power. The engine also incorporated a particulate filter to reduce emissions, meeting Euro 6 standards. The G-TRONIC nine-speed automatic transmission was specifically tuned to complement the engine’s characteristics, offering smooth and efficient gear changes.
Driving Characteristics
The GLC 250d 4MATIC offered a comfortable and refined driving experience. The abundant low-end torque from the diesel engine meant that brisk acceleration was readily available without needing to rev the engine high. The nine-speed automatic transmission contributed to this, keeping the engine within its optimal power band. While not a sports-oriented SUV, the 250d provided adequate performance for everyday driving and highway cruising. Compared to the higher-output GLC 300 (petrol) or the AMG variants, the 250d prioritized fuel economy and relaxed cruising over outright speed. The 4MATIC all-wheel-drive system provided enhanced traction and stability, particularly in adverse weather conditions. The steering was precise and well-weighted, though it lacked the direct feel of some competitors.
Equipment & Trim Levels
The GLC 250d typically came well-equipped as standard. Common features included automatic climate control, a multi-function steering wheel, power-adjustable front seats, and a high-resolution infotainment system with a central display screen. Upholstery was generally a combination of leatherette and fabric, with full leather options available as an upgrade. Optional extras included a panoramic sunroof, premium sound system, navigation system, and various driver-assistance features such as lane keeping assist and blind spot monitoring. Trim levels varied slightly depending on the market, but generally offered packages that bundled together popular options.
Chassis & Braking
The GLC 250d featured a fully independent suspension system, with multi-link setups at both the front and rear. This provided a comfortable ride quality and good handling characteristics. The suspension was tuned to prioritize comfort over sporty handling, but still offered a secure and controlled feel. Braking was handled by ventilated disc brakes on all four wheels, providing ample stopping power. The ABS (Anti-lock Braking System) and Electronic Stability Program (ESP) were standard features, enhancing safety and control.
Market Reception & Comparison
The GLC 250d 4MATIC was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined interior. However, some reviewers noted that the diesel engine could be somewhat noisy compared to petrol alternatives. Compared to other trims in the GLC lineup, the 250d offered a compelling balance of performance and economy. The petrol-powered GLC 300 provided more power but at the expense of fuel efficiency, while the higher-end AMG models offered significantly more performance but came with a substantial price premium. In terms of reliability, the OM 651 engine proved to be generally robust, though diesel particulate filter issues could occasionally arise with infrequent long-distance driving.
Legacy
The Mercedes-Benz GLC 250d 4MATIC G-TRONIC remains a popular choice in the used car market. Its combination of luxury, practicality, and fuel efficiency continues to appeal to buyers. The OM 651 diesel engine, while requiring regular maintenance, is known for its durability. However, potential buyers should be aware of the potential for diesel particulate filter issues and ensure that the vehicle has been properly maintained. The X253 GLC established a strong foundation for the model line, and the 250d variant played a key role in its success.
