Technical Specifications
| Brand | Mini |
| Model | Hatch |
| Generation | Hatch (F55, facelift 2018) 5-door |
| Type (Engine) | Cooper 1.5 (136 Hp) Steptronic |
| Start of production | 2018 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 6.0-6.1 l/100 km (39.2 – 38.6 US mpg) |
| Fuel consumption (extra urban) | 4.1-4.2 l/100 km (57.4 – 56 US mpg) |
| Fuel consumption (combined) | 4.8-4.9 l/100 km (49 – 48 US mpg) |
| CO2 emissions | 111-114 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.1 sec |
| Acceleration 0 – 62 mph | 8.1 sec |
| Acceleration 0 – 60 mph | 7.7 sec |
| Maximum speed | 207 km/h (128.62 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.6 kg/Hp |
| Weight-to-torque ratio | 5.1 kg/Nm |
| Power | 136 Hp @ 4400-6000 rpm |
| Torque | 230 Nm @ 1250-4300 rpm (169.64 lb.-ft.) |
| Engine layout | Front, Transverse |
| Engine Model/Code | B38A15A |
| Engine displacement | 1499 cm3 (91.47 cu. in.) |
| Number of cylinders | 3 |
| 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 |
| Engine oil capacity | 4.25 l (4.49 US qt | 3.74 UK qt) |
| Coolant | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Kerb Weight | 1175 kg (2590.43 lbs.) |
| Max. weight | 1700 kg (3747.86 lbs.) |
| Max load | 525 kg (1157.43 lbs.) |
| Trunk (boot) space – minimum | 278 l (9.82 cu. ft.) |
| Trunk (boot) space – maximum | 941 l (33.23 cu. ft.) |
| Fuel tank capacity | 40 l (10.57 US gal | 8.8 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Length | 3982 mm (156.77 in.) |
| Width | 1727 mm (67.99 in.) |
| Height | 1425 mm (56.1 in.) |
| Wheelbase | 2567 mm (101.06 in.) |
| Front track | 1501 mm (59.09 in.) |
| Rear (Back) track | 1501 mm (59.09 in.) |
| Ride height (ground clearance) | 146 mm (5.75 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle | 11.0 m (36.09 ft.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 6 |
| Gearbox type | Automatic transmission Steptronic |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link suspension |
| 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 | 175/65 R15 84H |
| Wheel rims size | 5.5J x 15 |
The Mini Hatch (F55) 5-door Cooper 1.5 with the Steptronic automatic transmission, introduced with the 2018 facelift, represents a significant iteration of the modern Mini lineup. Positioned as a mid-range offering within the F55 generation (2014-2023), this variant aimed to balance fuel efficiency, practicality, and the brand’s signature driving experience. The F55 generation marked a departure from earlier Minis, being built on the UKL1 platform shared with other BMW Group vehicles. This 2018 refresh brought styling updates, improved technology, and refinements to the powertrain options, including this 1.5-liter turbocharged engine paired with a 6-speed automatic.
Powertrain & Engine Architecture
At the heart of the 2018 Mini Cooper 1.5 Steptronic lies the BMW B38A15A engine, a 1.5-liter inline-three cylinder gasoline engine. This engine utilizes direct fuel injection and a single twin-scroll turbocharger with an intercooler to deliver 136 horsepower and 230 Nm (169.64 lb.-ft.) of torque. The B38 engine family is known for its efficiency and responsiveness, and the turbocharger is key to providing a broad torque curve, peaking from 1250 to 4300 rpm. The engine features variable valve timing (VANOS) on both the intake and exhaust sides, further optimizing performance and fuel economy. The Steptronic automatic transmission is a 6-speed torque converter automatic, offering smooth shifts and a ‘D’ (Drive) and ‘S’ (Sport) mode. The transmission is designed to work seamlessly with the engine’s torque characteristics, providing adequate acceleration without excessive engine revving.
Driving Characteristics
The 1.5-liter Cooper Automatic delivers a comfortable and refined driving experience. While not as overtly sporty as the more powerful Cooper S models, it provides sufficient power for everyday driving and highway cruising. Acceleration from 0-60 mph takes approximately 7.7 seconds. The Steptronic transmission is generally smooth and responsive, although it can occasionally exhibit some hesitation during quick downshifts. The gear ratios are tuned for fuel efficiency, meaning the engine doesn’t always feel as eager to rev as it does in manual transmission variants. Compared to the 6-speed manual, the automatic prioritizes ease of use over outright performance. The automatic transmission does diminish the “go-kart” feel that Minis are known for, but the chassis and steering still provide a connected and engaging driving experience.
Equipment & Trim Levels
The 2018 Mini Hatch 5-door Cooper 1.5 Steptronic came standard with a good level of equipment. This included air conditioning, power windows and locks, a 6.5-inch infotainment system with Bluetooth connectivity, and a leather-wrapped steering wheel. Safety features such as ABS, stability control, and multiple airbags were also standard. Optional extras included a larger 8.8-inch infotainment system with navigation, a panoramic sunroof, heated seats, and a variety of exterior styling packages. Interior upholstery options typically included cloth or leatherette, with various color combinations available. The trim level generally sat in the middle of the Mini lineup, offering a step up from the base One model but falling short of the more premium Cooper S and John Cooper Works variants.
Chassis & Braking
The F55 Mini Hatch utilizes a McPherson strut front suspension and a multi-link rear suspension. This setup provides a good balance of ride comfort and handling precision. The suspension is tuned to be relatively firm, contributing to the car’s sporty feel. The front brakes are ventilated discs, while the rear brakes are solid discs. ABS (Anti-lock Braking System) is standard, providing enhanced braking performance in emergency situations. The steering is electric power-assisted, offering precise and responsive control. The 5-door model, being slightly heavier than the 3-door, benefits from a slightly stiffer suspension setup to maintain handling balance.
Market Reception & Comparison
The 2018 Mini Hatch 5-door Cooper 1.5 Steptronic was generally well-received by automotive critics. It was praised for its stylish design, comfortable interior, and fuel-efficient engine. However, some reviewers noted that the automatic transmission could feel a bit sluggish at times, and that the engine lacked the outright punch of the Cooper S. Compared to other cars in its class, such as the Volkswagen Polo or Audi A1, the Mini offered a more premium and stylish experience, but at a slightly higher price point. Fuel economy was a strong point, with combined figures around 48-49 mpg, making it an attractive option for those seeking a practical and efficient hatchback.
Legacy
The B38 engine family has proven to be relatively reliable, although some owners have reported issues with the timing chain and cooling system. The Steptronic transmission is generally durable, but regular maintenance, including fluid changes, is essential. On the used car market, the 2018 Mini Hatch 5-door Cooper 1.5 Steptronic holds its value reasonably well, thanks to the brand’s strong reputation and the car’s appealing design. It remains a popular choice for buyers looking for a stylish, practical, and fuel-efficient hatchback with a premium feel. Properly maintained examples continue to provide years of reliable service, making them a worthwhile consideration for those seeking a used Mini.
