The Mini Hatch (F55) facelift, specifically the 5-door Cooper S 2.0 with the Steptronic automatic transmission, represents a mid-cycle refresh of the third-generation Mini Hatch introduced in 2014. Production of this variant ran from March 2021 to February 2024. Positioned as a performance-oriented trim within the F55 range, it offered a step up in power and handling compared to the standard Cooper models, while remaining more accessible than the more focused John Cooper Works (JCW) variant. This model aimed to blend practicality with the Mini brand’s signature driving experience, appealing to buyers seeking a stylish and engaging compact hatchback.
Technical Specifications
| Brand | Mini |
| Model | Hatch |
| Generation | Hatch (F55, facelift 2021) 5-door |
| Type (Engine) | Cooper S 2.0 (178 Hp) Steptronic |
| Start of production | March, 2021 |
| End of production | February, 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 5.9-6.6 l/100 km (39.9 – 35.6 US mpg, 47.9 – 42.8 UK mpg, 16.9 – 15.2 km/l) |
| CO2 emissions (WLTP) | 134-147 g/km |
| Fuel consumption (urban) | 6.6-6.8 l/100 km (35.6 – 34.6 US mpg, 42.8 – 41.5 UK mpg, 15.2 – 14.7 km/l) |
| Fuel consumption (extra urban) | 4.5-4.8 l/100 km (52.3 – 49 US mpg, 62.8 – 58.9 UK mpg, 22.2 – 20.8 km/l) |
| Fuel consumption (combined) | 5.9-6.6 l/100 km (39.9 – 35.6 US mpg, 47.9 – 42.8 UK mpg, 16.9 – 15.2 km/l) |
| CO2 emissions (NEDC) | 121-126 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.7 sec |
| Acceleration 0 – 62 mph | 6.7 sec |
| Acceleration 0 – 60 mph | 6.4 sec |
| Maximum speed | 235 km/h (146.02 mph) |
| Emission standard | Euro 6d |
| Weight-to-power ratio | 7.2 kg/Hp, 139.1 Hp/tonne |
| Weight-to-torque ratio | 4.6 kg/Nm, 218.8 Nm/tonne |
| Power | 178 Hp @ 5000-5500 rpm |
| Power per litre | 89.1 Hp/l |
| Torque | 280 Nm @ 1350-4200 rpm (206.52 lb.-ft. @ 1350-4200 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | B48A20F |
| Engine displacement | 1998 cm3 (121.93 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 11:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.25 l (5.55 US qt | 4.62 UK qt) |
| Coolant | 7.1 l (7.5 US qt | 6.25 UK qt) |
| Kerb Weight | 1280 kg (2821.92 lbs.) |
| Max. weight | 1775 kg (3913.21 lbs.) |
| Max load | 495 kg (1091.29 lbs.) |
| Trunk (boot) space – minimum | 278 l (9.82 cu. ft.) |
| Trunk (boot) space – maximum | 941 l (33.23 cu. ft.) |
| Fuel tank capacity | 44 l (11.62 US gal | 9.68 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Length | 4036 mm (158.9 in.) |
| Width | 1727 mm (67.99 in.) |
| Width including mirrors | 1932 mm (76.06 in.) |
| Height | 1425 mm (56.1 in.) |
| Wheelbase | 2567 mm (101.06 in.) |
| Front track | 1485 mm (58.46 in.) |
| Rear track | 1485 mm (58.46 in.) |
| Front overhang | 771 mm (30.35 in.) |
| Rear overhang | 698 mm (27.48 in.) |
| Ride height (ground clearance) | 143 mm (5.63 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle | 11.1 m (36.42 ft.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 7 |
| Gearbox type | automatic transmission Steptronic |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link spring suspension with stabilizer, Trailing arm |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
INTRODUCTION
The F55 Mini Hatch facelift, launched in 2021, brought subtle but significant updates to the already popular third-generation model. The 5-door Cooper S 2.0 Steptronic variant occupied a sweet spot in the lineup, offering a compelling blend of performance, practicality, and technology. It was positioned above the standard Cooper models and below the range-topping John Cooper Works, targeting drivers who desired a sporty driving experience without sacrificing everyday usability. The facelift included revised styling cues, an updated interior with enhanced technology, and refinements to the engine and chassis. This version continued the Mini tradition of offering a premium small car experience with a focus on driving dynamics.
Powertrain & Engine Architecture
At the heart of the Cooper S 2.0 Steptronic lies the BMW Group’s B48A20F 2.0-liter turbocharged four-cylinder engine. This engine is part of the modular B-series engine family, known for its efficiency and performance. The B48 utilizes direct fuel injection, a twin-scroll turbocharger, and an intercooler to deliver 178 horsepower at 5000-5500 rpm and 280 Nm (206.52 lb.-ft.) of torque between 1350 and 4200 rpm. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. The ‘Steptronic’ transmission is a 7-speed dual-clutch transmission (DCT) offering quick and smooth gear changes. This transmission allows for both fully automatic operation and manual gear selection via steering wheel-mounted paddles. The engine also incorporates start/stop technology to improve fuel economy and reduce emissions.
Driving Characteristics
The 178 hp output and the 7-speed Steptronic transmission provide a responsive and engaging driving experience. While not as brutally quick as the JCW model, the Cooper S 2.0 offers ample power for everyday driving and spirited backroad excursions. The DCT transmission contributes to brisk acceleration, with a 0-60 mph time of around 6.4 seconds. The gear ratios are well-chosen to provide strong acceleration in all gears. Compared to the 6-speed manual transmission available on other Cooper S models, the Steptronic offers smoother shifts and greater convenience, particularly in urban traffic. However, some enthusiasts may find the manual transmission more engaging. The engine delivers a broad torque curve, making it flexible and easy to drive in various conditions.
Equipment & Trim Levels
The 5-door Cooper S 2.0 Steptronic came standard with a generous array of features. Interior appointments typically included sport seats upholstered in a combination of cloth and leatherette, a leather-wrapped steering wheel, and aluminum interior trim. Standard technology included a 6.5-inch infotainment screen with Mini Connected services, Bluetooth connectivity, and a rearview camera. Optional extras included a larger 8.8-inch touchscreen display with navigation, a head-up display, a panoramic sunroof, and a premium Harman Kardon sound system. Exterior features included LED headlights, 17-inch alloy wheels, and distinctive Cooper S styling cues such as a unique front bumper and rear diffuser.
Chassis & Braking
The F55 Cooper S 2.0 Steptronic utilizes a McPherson strut front suspension and a multi-link rear suspension. This setup provides a good balance between ride comfort and handling precision. The suspension is tuned to be slightly firmer than the standard Cooper models, offering improved body control and responsiveness. The car is equipped with ventilated disc brakes at the front and solid disc brakes at the rear. Anti-lock braking system (ABS) is standard, along with electronic stability control (ESC). The steering is electric power-assisted, providing precise and responsive steering feel.
Market Reception & Comparison
The Mini Hatch (F55) facelift, including the Cooper S 2.0 Steptronic, was generally well-received by automotive critics. Reviewers praised its stylish design, engaging driving dynamics, and refined interior. The Steptronic transmission was noted for its smoothness and convenience. Compared to the standard Cooper models, the Cooper S 2.0 offered a significant performance upgrade. Fuel economy was respectable, with combined figures ranging from 35.6 to 39.9 US mpg. Reliability was generally good, although some owners reported minor issues with the infotainment system. Compared to rivals such as the Volkswagen GTI and Audi A3, the Mini offered a more unique and characterful driving experience, but often at a slightly higher price point.
Legacy
The B48 engine and the 7-speed Steptronic transmission have proven to be relatively reliable powertrains. While long-term maintenance costs can be higher than some competitors due to the Mini’s premium brand status, the powertrain itself is generally robust. On the used car market, the F55 Cooper S 2.0 Steptronic remains a popular choice for buyers seeking a stylish and fun-to-drive compact hatchback. Its combination of performance, practicality, and technology continues to appeal to a wide range of drivers. Well-maintained examples command a reasonable price, reflecting the Mini brand’s enduring appeal and the car’s overall quality.
