The Mini Hatch (F56) facelift, specifically the 3-door Cooper D 1.5 with 116 horsepower and the Steptronic automatic transmission, represents a refinement of the third-generation Mini, launched in 2014. Introduced in 2018, this variant aimed to offer a balance of fuel efficiency and usability within the broader Mini lineup. It falls within the F56 chassis code, representing the hardtop 3-door model, and benefited from the mid-life refresh that included styling updates and revised technology. This particular configuration was positioned as a mid-range offering, appealing to buyers seeking diesel economy with the convenience of an automatic gearbox.
Technical Specifications
| Brand | Mini |
| Model | Hatch |
| Generation | Hatch (F56, facelift 2018) 3-door |
| Type (Engine) | Cooper D 1.5 (116 Hp) Steptronic |
| Start of production | 2018 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 4 |
| Doors | 3 |
| Fuel consumption (urban) | 4.2-4.3 l/100 km (56 – 54.7 US mpg) |
| Fuel consumption (extra urban) | 3.5-3.7 l/100 km (67.2 – 63.6 US mpg) |
| Fuel consumption (combined) | 3.8-3.9 l/100 km (61.9 – 60.3 US mpg) |
| CO2 emissions | 99-103 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 9.3 sec |
| Acceleration 0 – 62 mph | 9.3 sec |
| Acceleration 0 – 60 mph | 8.8 sec |
| Maximum speed | 204 km/h (126.76 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 10.2 kg/Hp |
| Weight-to-torque ratio | 4.4 kg/Nm |
| Power | 116 Hp @ 4000 rpm |
| Torque | 270 Nm @ 1750-2250 rpm (199.14 lb.-ft. @ 1750-2250 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | B37C15A |
| Engine displacement | 1496 cm3 (91.29 cu. in.) |
| Number of cylinders | 3 |
| Engine configuration | Inline |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 90 mm (3.54 in.) |
| Compression ratio | 16.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 4.8 l (5.07 US qt | 4.22 UK qt) |
| Coolant capacity | 3.3 l (3.49 US qt | 2.9 UK qt) |
| Kerb Weight | 1185 kg (2612.48 lbs.) |
| Max. weight | 1650 kg (3637.63 lbs.) |
| Max load | 465 kg (1025.15 lbs.) |
| Trunk (boot) space – minimum | 211 l (7.45 cu. ft.) |
| Fuel tank capacity | 44 l (11.62 US gal | 9.68 UK gal) |
| Length | 3821 mm (150.43 in.) |
| Width | 1727 mm (67.99 in.) |
| Height | 1414 mm (55.67 in.) |
| Wheelbase | 2495 mm (98.23 in.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission Steptronic |
Powertrain & Engine Architecture
The heart of the Cooper D 1.5 Steptronic is the BMW Group’s B37C15A 1.5-liter three-cylinder diesel engine. This engine is a member of the modular engine family, designed for efficiency and scalability. It utilizes a turbocharger with an intercooler to boost power output, and employs direct injection with a common rail system for precise fuel delivery. The engine produces 116 horsepower at 4000 rpm and 270 Nm (199 lb-ft) of torque between 1750 and 2250 rpm. The Steptronic transmission is a 7-speed dual-clutch transmission (DCT), offering quick and smooth gear changes. This transmission is known for its efficiency and responsiveness, contributing to the car’s overall fuel economy. The engine also features a particulate filter to meet stringent Euro 6 emission standards.
Driving Characteristics
The 1.5-liter diesel engine paired with the 7-speed Steptronic transmission delivers a comfortable and refined driving experience. While not overtly sporty, the combination provides adequate performance for everyday driving. Acceleration from 0-60 mph takes approximately 8.8 seconds, and the car reaches a top speed of 126.76 mph. The Steptronic transmission is programmed for fuel efficiency, often upshifting quickly to maintain low engine speeds. This can sometimes result in a slight delay in response when requesting sudden acceleration. Compared to the manual transmission version, the Steptronic offers greater convenience, particularly in urban traffic. However, the manual version generally provides slightly better fuel economy and a more engaging driving experience. Compared to higher-output Cooper models (like those with the 2.0-liter petrol engine), this diesel variant prioritizes fuel efficiency over outright performance.
Equipment & Trim Levels
The Cooper D 1.5 Steptronic typically came equipped with a respectable level of standard features. These included air conditioning, 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 infotainment screen, navigation system, parking sensors, and a panoramic sunroof. Interior upholstery was typically cloth, with leather options available at an extra cost. Trim levels could vary slightly depending on the market, but generally, this variant sat in the middle of the range, offering a good balance of features and affordability.
Chassis & Braking
The F56 Mini Hatch utilizes a McPherson strut front suspension and a multi-link rear suspension, providing a firm yet comfortable ride. The suspension is tuned to offer a balance between handling and ride quality, reflecting the Mini’s focus on driving enjoyment. The Cooper D 1.5 Steptronic features ventilated disc brakes at the front and solid disc brakes at the rear. The braking system is responsive and provides adequate stopping power for everyday driving. Electric power steering provides precise and weighted steering feel. The car’s relatively low weight (1185 kg) contributes to its agility and handling characteristics.
Market Reception & Comparison
The Mini Cooper D 1.5 Steptronic was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and refined driving experience. However, some critics noted that the engine could feel slightly underpowered, particularly when fully loaded or driving uphill. Compared to other trims in the lineup, the Cooper D 1.5 offered the best fuel economy, making it an attractive option for drivers who prioritize efficiency. Its reliability was generally considered good, although diesel engines can be more susceptible to issues with the particulate filter if not properly maintained.
Legacy
The B37C15A engine and the 7-speed Steptronic transmission have proven to be relatively reliable powertrains. While diesel engines require diligent maintenance (particularly regarding the diesel particulate filter), they are capable of high mileage. On the used car market, the Cooper D 1.5 Steptronic remains a popular choice for buyers seeking a fuel-efficient and stylish hatchback. Its combination of practicality, economy, and the iconic Mini brand appeal continues to make it a desirable option. Properly maintained examples command reasonable prices, and the availability of parts and service is generally good.
