The Mercedes-Benz B-Class (W246) B 250, produced from 2012 to 2014, represented a significant step forward in the compact luxury hatchback segment. Positioned as a premium offering within the W246 B-Class range, the B 250 distinguished itself with a more powerful engine and a dual-clutch transmission (DCT), targeting buyers seeking a blend of practicality, comfort, and performance. This variant occupied the upper-mid-range of the B-Class lineup, slotting above the B 180 and B 200 models, and below any potential AMG-tuned versions. It was primarily marketed in Europe and other international markets, offering a sophisticated alternative to traditional compact hatchbacks.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | B-class |
| Generation | B-class (W246) |
| Type (Engine) | B 250 (211 Hp) DCT |
| Start of production | 2012 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 8.6-8.5 l/100 km (27.4 – 27.7 US mpg) |
| Fuel consumption (extra urban) | 4.7-4.6 l/100 km (50 – 51.1 US mpg) |
| Fuel consumption (combined) | 6.1 l/100 km (38.6 US mpg) |
| CO2 emissions | 143-141 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.8 sec |
| Acceleration 0 – 62 mph | 6.8 sec |
| Acceleration 0 – 60 mph | 6.5 sec |
| Maximum speed | 240 km/h (149.13 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 7 kg/Hp |
| Weight-to-torque ratio | 4.2 kg/Nm |
| Power | 211 Hp @ 5500 rpm |
| Torque | 350 Nm @ 1200-4000 rpm (258.15 lb.-ft. @ 1200-4000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | M 270.920 |
| Engine displacement | 1991 cm3 (121.5 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Compression ratio | 9.8:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 5.6 l (5.92 US qt | 4.93 UK qt) |
| Coolant capacity | 7 l (7.4 US qt | 6.16 UK qt) |
| Kerb Weight | 1475 kg (3251.82 lbs.) |
| Max. weight | 2000 kg (4409.25 lbs.) |
| Max load | 525 kg (1157.43 lbs.) |
| Trunk (boot) space – minimum | 488 l (17.23 cu. ft.) |
| Trunk (boot) space – maximum | 1547 l (54.63 cu. ft.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Length | 4359 mm (171.61 in.) |
| Width | 1786 mm (70.31 in.) |
| Height | 1557 mm (61.3 in.) |
| Wheelbase | 2699 mm (106.26 in.) |
| Front track | 1552 mm (61.1 in.) |
| Rear track | 1549 mm (60.98 in.) |
| Minimum turning circle | 11 m (36.09 ft.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 7 |
| Gearbox type | Automatic transmission G-DCT |
| Front suspension | Independent type McPherson |
| Rear suspension | Trailing arm |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/45 R17 |
| Wheel rims size | 17 |
Powertrain & Engine Architecture
The heart of the B 250 is the M 270.920 2.0-liter inline-four cylinder engine. This engine is a key member of Mercedes-Benz’s modular engine family, known for its compact dimensions and efficiency. It features direct fuel injection, a single turbocharger with an intercooler, and four valves per cylinder. The direct injection system allows for precise fuel delivery, optimizing combustion and enhancing power output. The turbocharger provides a significant boost in performance, delivering 350 Nm (258 lb-ft) of torque across a broad rev range of 1200-4000 rpm. This broad torque curve contributes to strong acceleration and effortless cruising. The engine is paired with a 7-speed dual-clutch transmission (G-DCT), which offers rapid and smooth gear changes, further enhancing the driving experience. The G-DCT is known for its efficiency and responsiveness, contributing to the B 250’s respectable fuel economy.
Driving Characteristics
The B 250 DCT delivers a noticeably more engaging driving experience compared to the lower-powered B-Class variants. The 211 horsepower and 350 Nm of torque provide brisk acceleration, with a 0-60 mph time of around 6.5 seconds. The G-DCT transmission plays a crucial role in maximizing the engine’s potential, providing quick and seamless shifts. The gear ratios are well-tuned for both city driving and highway cruising. While not a sports car, the B 250 offers ample power for overtaking and merging onto highways with confidence. Compared to the manual transmission options available on other B-Class models, the DCT provides a more refined and convenient driving experience, particularly in stop-and-go traffic. The suspension is tuned for comfort, providing a smooth ride over most road surfaces, but it also offers decent handling characteristics.
Equipment & Trim Levels
The B 250 typically came well-equipped as standard. Common features included automatic climate control, a multi-function steering wheel, power windows and mirrors, and a high-quality audio system. Upholstery was generally a combination of fabric and leatherette, with full leather options available as an upgrade. Optional extras included a panoramic sunroof, navigation system, parking sensors, and various driver assistance systems such as lane keeping assist and blind spot monitoring. The interior design was modern and functional, with a focus on ergonomics and user-friendliness. The dashboard layout was clean and uncluttered, with intuitive controls.
Chassis & Braking
The W246 B-Class features a McPherson strut front suspension and a multi-link rear suspension, providing a comfortable and controlled ride. The B 250 typically came with ventilated front disc brakes and solid rear disc brakes. Anti-lock Braking System (ABS) was standard, ensuring safe and effective braking performance. The steering is electrically assisted, providing a light and precise feel. The chassis is designed to balance comfort and handling, offering a stable and predictable driving experience. The suspension tuning is geared towards providing a comfortable ride for passengers, rather than outright sporty handling.
Market Reception & Comparison
The B 250 was generally well-received by automotive critics, who praised its powerful engine, smooth transmission, and comfortable ride. It was often compared to other premium compact hatchbacks, such as the Audi A3 and BMW 1 Series. While the B 250 offered a competitive level of performance and features, some critics noted that its styling was somewhat conservative. Fuel economy was considered good for its class, with combined figures around 6.1 l/100 km (38.6 US mpg). Reliability was generally good, although some owners reported minor issues with the electronic systems. Compared to the B 180 and B 200 models, the B 250 offered a significant performance upgrade, but at a higher price point.
Legacy
The W246 B 250 remains a popular choice in the used car market, particularly for buyers seeking a practical and comfortable premium hatchback. The M 270 engine, while generally reliable, requires regular maintenance, including oil changes and timing chain inspections. The G-DCT transmission is also relatively reliable, but it’s important to ensure that it has been properly serviced. Overall, the B 250 offers a good balance of performance, comfort, and practicality, making it a compelling option for those looking for a versatile and refined compact car.
