The Mini Hatch (F56) 3-door Cooper D 1.5 Automatic, produced from March 2014 to 2018, represented a key entry point into the third generation of the iconic Mini hatchback. Positioned within the F56 chassis code family – which also included the 5-door Hatch and Convertible models – the Cooper D 1.5 Automatic offered a blend of fuel efficiency and practicality aimed at urban drivers. This variant utilized a 1.5-liter three-cylinder diesel engine paired with a six-speed automatic transmission, distinguishing itself from the more performance-oriented Cooper and Cooper S models, as well as the manual transmission options available within the Cooper D range. It was designed to appeal to buyers seeking a premium small car experience with lower running costs.
Technical Specifications
| Brand | Mini |
| Model | Hatch |
| Generation | Hatch (F56) 3-door |
| Type (Engine) | Cooper D 1.5 (116 Hp) Automatic |
| Start of production | March, 2014 |
| 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, 67.3 – 65.7 UK mpg, 23.8 – 23.3 km/l) |
| Fuel consumption (extra urban) | 3.5 l/100 km (67.2 US mpg, 80.7 UK mpg, 28.6 km/l) |
| Fuel consumption (combined) | 3.7 – 3.8 l/100 km (63.6 – 61.9 US mpg, 76.3 – 74.3 UK mpg, 27 – 26.3 km/l) |
| CO2 emissions | 98 – 99 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 9.2 sec |
| Acceleration 0 – 62 mph | 9.2 sec |
| Acceleration 0 – 60 mph | 8.7 sec |
| Maximum speed | 204 km/h (126.76 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 9.9 kg/Hp, 100.9 Hp/tonne |
| Weight-to-torque ratio | 4.3 kg/Nm, 234.8 Nm/tonne |
| Power | 116 Hp @ 4000 rpm |
| Power per litre | 77.5 Hp/l |
| Torque | 270 Nm @ 1750 rpm (199.14 lb.-ft. @ 1750 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 | 3.3 l (3.49 US qt | 2.9 UK qt) |
| Kerb Weight | 1150 kg (2535.32 lbs.) |
| Max. weight | 1630 kg (3593.53 lbs.) |
| Max load | 480 kg (1058.22 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.) |
| Front track | 1501 mm (59.09 in.) |
| Rear (Back) track | 1501 mm (59.09 in.) |
| Ride height (ground clearance) | 124 mm (4.88 in.) |
| Minimum turning circle | 10.8 m (35.43 ft.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears and type of gearbox | 6 gears, automatic transmission |
| 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 |
| Tires size | 175/65 R15 84H |
| Wheel rims size | 5.5J x 15 |
Powertrain & Engine Architecture
The heart of the Cooper D 1.5 Automatic is the BMW Group’s B37C15A engine, a 1.5-liter inline three-cylinder diesel. This engine is a member of the modular B-series engine family, known for its compact size and efficiency. It features a single turbocharger with an intercooler, boosting power output to 116 horsepower at 4000 rpm and 270 Nm (199 lb-ft) of torque at a low 1750 rpm. The engine utilizes a common-rail direct fuel injection system, delivering precise fuel metering for optimal combustion. The valvetrain employs four valves per cylinder, contributing to efficient gas exchange. Paired with this engine is a six-speed automatic transmission, specifically designed to provide smooth shifts and enhance fuel economy. This transmission isn’t a traditional torque-converter automatic; it’s a more modern unit with quicker response times than older designs.
Driving Characteristics
The Cooper D 1.5 Automatic offered a comfortable and refined driving experience, particularly well-suited for city commuting. While not a performance-focused model, the 270 Nm of torque available from low engine speeds provided adequate acceleration for everyday driving. The automatic transmission, while smooth, wasn’t particularly sporty, prioritizing fuel efficiency over rapid gear changes. Compared to the six-speed manual version of the Cooper D, the automatic offered greater convenience but slightly reduced fuel economy and a less engaging driving experience. Against the more powerful Cooper and Cooper S models, the Cooper D Automatic felt noticeably slower, with a 0-60 mph time of around 8.7 seconds. However, its strength lay in its fuel efficiency and relaxed cruising ability.
Equipment & Trim Levels
The Cooper D 1.5 Automatic typically came equipped with a respectable level of standard features. These included air conditioning, power windows, central locking, a basic audio system with USB connectivity, and alloy wheels. Interior upholstery was typically cloth, with options for leather upgrades. Available optional extras included a navigation system, a panoramic sunroof, parking sensors, and upgraded sound systems. Trim levels varied slightly depending on the market, but generally followed a progression from base ‘Cooper’ to more luxurious specifications with additional features and cosmetic enhancements.
Chassis & Braking
The F56 Mini Hatch featured a McPherson strut front suspension and a multi-link rear suspension, providing a good balance between ride comfort and handling. The Cooper D Automatic, due to its lower power output and weight compared to the Cooper S, generally utilized smaller diameter brakes – ventilated discs at the front and solid discs at the rear. ABS (Anti-lock Braking System) was standard. The steering employed an electric power steering system, offering precise control and a direct feel. Stabilizer bars were fitted front and rear to reduce body roll during cornering.
Market Reception & Comparison
The Cooper D 1.5 Automatic was generally well-received by automotive critics as a practical and economical choice within the Mini lineup. Its fuel economy – averaging around 62-64 mpg in combined driving – was a major selling point. Compared to the petrol-powered Cooper, the diesel offered significantly better fuel efficiency, although it came with a slightly higher purchase price. Reliability proved to be generally good, although some owners reported issues with the diesel particulate filter (DPF) system, particularly on vehicles primarily used for short journeys. The automatic transmission was praised for its smoothness, but some reviewers found it to be somewhat hesitant in certain situations.
Legacy
The Cooper D 1.5 Automatic has become a popular choice in the used car market, appealing to buyers seeking a stylish and economical small car. The B37C15A engine, while requiring regular maintenance (including DPF regeneration), has proven to be relatively durable. The availability of affordable parts and a strong dealer network contribute to its ongoing appeal. While newer Mini models offer more advanced technology and features, the F56 Cooper D Automatic remains a compelling option for those prioritizing fuel efficiency, practicality, and the iconic Mini driving experience.
