The Mercedes-Benz B 180d, produced between October 2020 and October 2022, represents a key entry point into the W247 B-Class range. Positioned as a fuel-efficient and practical compact hatchback, the B 180d was primarily aimed at European markets where diesel engines remained popular. This variant combined a 1.95-liter turbocharged diesel engine with an 8-speed dual-clutch transmission (8G-DCT), offering a balance between economy and usability. It served as a more affordable alternative to the petrol-powered B 200 and higher-performance models like the B 220d.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | B-class |
| Generation | B-class (W247) |
| Type (Engine) | B 180d (116 Hp) 8G-DCT |
| Start of production | October, 2020 |
| End of production | October, 2022 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 5.2-5.3 l/100 km (45.2 – 44.4 US mpg, 54.3 – 53.3 UK mpg, 19.2 – 18.9 km/l) |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 9.8 sec |
| Acceleration 0 – 62 mph | 9.8 sec |
| Acceleration 0 – 60 mph | 9.3 sec |
| Maximum speed | 200 km/h (124.27 mph) |
| Emission standard | Euro 6D-ISC-FCM |
| Weight-to-power ratio | 12.6 kg/Hp, 79.5 Hp/tonne |
| Weight-to-torque ratio | 5.2 kg/Nm, 191.8 Nm/tonne |
| Power | 116 Hp @ 3400 rpm |
| Power per litre | 59.5 Hp/l |
| Torque | 280 Nm @ 1300-2600 rpm (206.52 lb.-ft. @ 1300-2600 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | OM 654.920 |
| Engine displacement | 1950 cm3 (119 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Compression ratio | 15.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 6.8 l (7.19 US qt | 5.98 UK qt) |
| Coolant | 10 l (10.57 US qt | 8.8 UK qt) |
| Kerb Weight | 1460 kg (3218.75 lbs.) |
| Max. weight | 2075 kg (4574.59 lbs.) |
| Max load | 615 kg (1355.84 lbs.) |
| Trunk (boot) space – minimum | 445 l (15.72 cu. ft.) |
| Trunk (boot) space – maximum | 1530 l (54.03 cu. ft.) |
| Fuel tank capacity | 43 l (11.36 US gal | 9.46 UK gal) |
| Permitted trailer load with brakes (12%) | 1400 kg (3086.47 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Length | 4419 mm (173.98 in.) |
| Width | 1796 mm (70.71 in.) |
| Width including mirrors | 2020 mm (79.53 in.) |
| Height | 1562 mm (61.5 in.) |
| Wheelbase | 2729 mm (107.44 in.) |
| Front track | 1567 mm (61.69 in.) |
| Rear (Back) track | 1547 mm (60.91 in.) |
| Front overhang | 914 mm (35.98 in.) |
| Rear overhang | 776 mm (30.55 in.) |
| Minimum turning circle (turning diameter) | 11 m (36.09 ft.) |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 8 gears, automatic transmission G-DCT |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Tires size | 205/55 R17; 225/45 R18 |
| Wheel rims size | 17; 18 |
Powertrain & Engine Architecture
The B 180d utilizes the OM 654.920 engine, a 1.95-liter inline-four cylinder diesel engine. This engine is part of Mercedes-Benz’s modular engine family, known for its efficiency and refinement. It features a high-pressure common rail direct injection system, delivering fuel at up to 2,700 bar for optimized combustion. The engine also incorporates a turbocharger with an intercooler to boost power and torque. The valvetrain employs a double overhead camshaft (DOHC) design with four valves per cylinder, enhancing breathing and overall performance. The 8G-DCT transmission is a wet dual-clutch unit, offering quick and smooth gear changes. It features eight forward gears, contributing to both fuel efficiency and responsive acceleration. The transmission is electronically controlled and adapts to driving conditions.
Driving Characteristics
The B 180d, with its 116 horsepower and 280 Nm (206 lb-ft) of torque, provides adequate performance for everyday driving. Acceleration from 0 to 100 km/h (0-62 mph) takes approximately 9.8 seconds. While not particularly sporty, the engine delivers a usable amount of torque from low engine speeds, making it well-suited for urban and highway driving. The 8G-DCT transmission contributes to a smooth driving experience, with quick shifts and minimal hesitation. Compared to the more powerful B 200 or B 220d models, the B 180d feels less eager to accelerate, but its fuel economy advantage is significant. The gear ratios are tuned for efficiency, prioritizing comfortable cruising over outright performance.
Equipment & Trim Levels
The B 180d typically came equipped with a respectable level of standard features. These included automatic climate control, a touchscreen infotainment system with smartphone integration (Apple CarPlay and Android Auto), and a suite of safety features such as automatic emergency braking and lane keeping assist. Interior upholstery was generally fabric, with options for leather upgrades. Common optional extras included a panoramic sunroof, upgraded sound system, and parking assistance packages. Trim levels varied slightly depending on the market, but generally offered progressive enhancements in terms of interior materials and technology.
Chassis & Braking
The W247 B-Class features a MacPherson strut front suspension and a multi-link rear suspension. The B 180d, being the entry-level diesel variant, typically used smaller stabilizer bars compared to the higher-performance models. The braking system consisted of ventilated discs at the front and solid discs at the rear. Anti-lock braking system (ABS) was standard, along with electronic brakeforce distribution (EBD). The steering system is an electric power steering system, providing a light and precise feel.
Market Reception & Comparison
The B 180d was generally well-received by critics as a practical and economical choice. Its fuel efficiency was a major selling point, particularly in Europe where diesel fuel was often cheaper than petrol. However, some reviewers noted that the engine could feel strained when fully loaded or driving uphill. Compared to the B 200, the B 180d offered significantly better fuel economy but lacked the same level of performance. The B 220d provided even more power but came at a higher price and with increased running costs. In terms of reliability, the OM 654 engine family has proven to be generally robust, although regular servicing is essential to maintain optimal performance.
Legacy
The B 180d, as part of the W247 B-Class, represents a significant step forward in terms of refinement and technology for Mercedes-Benz’s compact MPV. The OM 654 engine has become a mainstay in the Mercedes-Benz lineup, known for its efficiency and durability. On the used car market, the B 180d offers a compelling value proposition for buyers seeking a practical, economical, and well-equipped hatchback. Its relatively simple powertrain and proven reliability make it a sensible choice for those prioritizing low running costs and long-term dependability.
