The Mercedes-Benz GLB 250, specifically the facelifted 2023 model (X247), represents a compelling entry point into the compact luxury SUV segment. Introduced in March 2023, this variant combines a 2.0-liter turbocharged four-cylinder engine with a 48-volt mild hybrid system and an 8-speed dual-clutch transmission (8G-DCT). Positioned as a mid-range offering within the GLB lineup, it bridges the gap between the base GLB 250 and the more performance-oriented AMG GLB 35. The GLB, in general, was designed to offer a more accessible and practical alternative to the GLA and GLC, with optional third-row seating available, making it a versatile choice for small families.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | GLB |
| Generation | GLB (X247, facelift 2023) |
| Type (Engine) | GLB 250 (221 Hp) Mild Hybrid 8G-DCT |
| Start of production | March, 2023 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | SUV |
| Seats | 5-7 |
| Doors | 5 |
| Fuel consumption (urban) | 9.4 l/100 km (25 US mpg) |
| Fuel consumption (extra urban) | 7.1 l/100 km (33.1 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 6.9 sec |
| Emission standard | SULEV30 |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Electric motor power | 13 Hp |
| Electric motor Torque | 150 Nm (110.63 lb.-ft.) |
| Power | 221 Hp @ 5500 rpm |
| Torque | 350 Nm @ 1800-4000 rpm (258.15 lb.-ft. @ 1800-4000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | M 260 |
| Engine displacement | 1991 cm3 (121.5 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 92 mm (3.62 in.) |
| Compression ratio | 10.5:1 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-scroll turbo, Intercooler |
| Valvetrain | DOHC, CAMTRONIC |
| Engine oil capacity | 5 l (5.28 US qt | 4.4 UK qt) |
| Coolant capacity | 12.9 l (13.63 US qt | 11.35 UK qt) |
| Trunk (boot) space – minimum | 565 l (19.95 cu. ft.) |
| Trunk (boot) space – maximum | 1800 l (63.57 cu. ft.) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Length | 4634 mm (182.44 in.) |
| Width | 1834 mm (72.2 in.) |
| Width including mirrors | 2020 mm (79.53 in.) |
| Height | 1693 mm (66.65 in.) |
| Wheelbase | 2829 mm (111.38 in.) |
| Front track | 1585 mm (62.4 in.) |
| Rear track | 1588 mm (62.52 in.) |
| Drag coefficient (Cd) | 0.32 |
| Minimum turning circle | 11.7 m (38.39 ft.) |
| Drivetrain | Front wheel drive |
| Gearbox | 8 gears, automatic transmission G-DCT |
| Front suspension | Independent, McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Discs |
| Tire size | 235/55 R18 |
| Wheel rims size | 7.5J x 18 |
Powertrain & Engine Architecture
The heart of the GLB 250 is the M 260 engine, a 2.0-liter inline-four cylinder gasoline engine. This engine utilizes direct fuel injection and a twin-scroll turbocharger to deliver a balance of power and efficiency. The CAMTRONIC variable valve timing system further optimizes engine performance across a wider range of operating conditions. The 48-volt mild hybrid system adds a small electric motor that provides a power boost during acceleration and allows for smoother start/stop operation, contributing to improved fuel economy. The 8G-DCT transmission is a sophisticated dual-clutch unit known for its quick and precise shifts. It features eight forward gears, optimizing engine speed for both performance and fuel efficiency. The transmission is programmed with comfort and sport modes, allowing the driver to tailor the driving experience.
Driving Characteristics
The GLB 250 4MATIC offers a comfortable and composed driving experience. The 221 horsepower and 258 lb-ft of torque provide adequate acceleration, with a 0-60 mph time of around 6.9 seconds. While not as sporty as the AMG GLB 35, the 250 delivers sufficient power for everyday driving and highway merging. The 8G-DCT transmission contributes to smooth and responsive gear changes. The mild hybrid system provides a subtle but noticeable boost during acceleration, enhancing the overall driving feel. Compared to the base GLB 250, the 250 offers a more engaging driving experience due to its increased power output. However, it doesn’t quite match the performance of the higher-output AMG variant.
Equipment & Trim Levels
The 2023 GLB 250 comes standard with a generous array of features, including Mercedes-Benz User Experience (MBUX) infotainment system with a touchscreen display, Apple CarPlay and Android Auto integration, and a suite of advanced driver-assistance systems such as automatic emergency braking and lane-keeping assist. Interior upholstery typically consists of MB-Tex artificial leather, with options for genuine leather upgrades. Available options include a panoramic sunroof, premium sound system, and heated/ventilated front seats. Trim levels often include variations in interior trim materials and exterior styling elements.
Chassis & Braking
The GLB 250 utilizes a McPherson strut front suspension and a multi-link rear suspension, providing a comfortable ride and predictable handling. The suspension is tuned to balance comfort and control, making it suitable for a variety of driving conditions. The braking system consists of ventilated discs at the front and solid discs at the rear. Anti-lock braking system (ABS) and electronic stability control (ESC) are standard features, enhancing safety and stability. The steering is electrically assisted, providing a light and responsive feel.
Market Reception & Comparison
The Mercedes-Benz GLB 250 has been well-received by automotive critics for its practicality, comfortable ride, and upscale interior. It’s often praised for its spaciousness, particularly for a compact SUV, and its available third-row seating. Compared to competitors such as the BMW X1 and Audi Q3, the GLB 250 offers a more spacious interior and a more comfortable ride. Fuel economy is competitive within its class, and the mild hybrid system helps to improve efficiency. Reliability ratings have been generally positive, although some owners have reported minor issues with the infotainment system.
Legacy
The M 260 engine, in various iterations, has proven to be a reliable and durable powerplant within the Mercedes-Benz lineup. The 8G-DCT transmission is also known for its longevity and smooth operation. While the 2023 GLB 250 is still relatively new, early indications suggest that it will maintain the GLB’s reputation for reliability and practicality. As the model ages, it is expected to become a popular choice in the used car market, offering a compelling combination of luxury, space, and efficiency.
