The BMW 4 Series Gran Coupe (F36) 428i, produced from 2014 to 2016, represents BMW’s entry into the four-door coupe segment, successfully merging the aesthetic appeal of a coupe with the practicality expected of a sedan. Positioned as a mid-range offering within the F36 Gran Coupe lineup, the 428i aimed to strike a balance between performance, luxury, and fuel efficiency. It occupied the space between the entry-level 420i and the more powerful 435i and later 440i models. The F36 Gran Coupe is fundamentally based on the F30 3 Series platform, sharing its wheelbase and many core mechanical components, but is visually distinguished by its elegantly sloping roofline and frameless doors.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Gran Coupe (F36) |
| Type (Engine) | 428i (245 Hp) |
| Start of production | 2014 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 8.9 l/100 km (26.4 US mpg, 31.7 UK mpg, 11.2 km/l) |
| Fuel consumption (economy) – extra urban | 5.3 l/100 km (44.4 US mpg, 53.3 UK mpg, 18.9 km/l) |
| Fuel consumption (economy) – combined | 6.6 l/100 km (35.6 US mpg, 42.8 UK mpg, 15.2 km/l) |
| CO2 emissions | 154 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.1 sec |
| Acceleration 0 – 62 mph | 6.1 sec |
| Acceleration 0 – 60 mph | 5.8 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 6.2 kg/Hp, 162.3 Hp/tonne |
| Weight-to-torque ratio | 4.3 kg/Nm, 231.8 Nm/tonne |
| Power | 245 Hp @ 5000-6500 rpm |
| Power per litre | 122.7 Hp/l |
| Torque | 350 Nm @ 1250-4800 rpm (258.15 lb.-ft. @ 1250-4800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N20B20A |
| Engine displacement | 1997 cm3 (121.86 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 90.1 mm (3.55 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Engine oil capacity | 5 l (5.28 US qt | 4.4 UK qt) |
| Coolant | 7.6 l (8.03 US qt | 6.69 UK qt) |
| Kerb Weight | 1510 kg (3328.98 lbs.) |
| Max. weight | 2070 kg (4563.57 lbs.) |
| Max load | 560 kg (1234.59 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Trunk (boot) space – maximum | 1300 l (45.91 cu. ft.) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 1600 kg (3527.4 lbs.) |
| Permitted trailer load without brakes | 745 kg (1642.44 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4638 mm (182.6 in.) |
| Width | 1825 mm (71.85 in.) |
| Height | 1389 mm (54.69 in.) |
| Wheelbase | 2810 mm (110.63 in.) |
| Front track | 1545 mm (60.83 in.) |
| Rear (Back) track | 1594 mm (62.76 in.) |
| Ride height (ground clearance) | 130 mm (5.12 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11.3 m (37.07 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Independent coil spring |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/50 R17 94W |
| Wheel rims size | 7.5J x 17 |
Powertrain & Engine Architecture
The core of the 428i Gran Coupe is BMW’s N20B20A 2.0-liter turbocharged inline-four engine. This engine is part of BMW’s highly-regarded modular engine family, celebrated for its efficiency and performance. The N20 features direct fuel injection, a twin-scroll turbocharger, and variable valve timing (VANOS) and variable valve lift (Valvetronic) technologies to optimize power delivery and fuel economy. The engine generates 245 horsepower between 5,000 and 6,500 rpm, and 258 lb-ft of torque from 1,250 to 4,800 rpm. The 428i was exclusively paired with an 8-speed automatic transmission (ZF 8HP), renowned for its smooth shifting and broad gear ratio spread. This transmission contributes to both improved fuel efficiency and responsive acceleration.
Driving Characteristics
The 428i Gran Coupe provides a refined and engaging driving experience. The 8-speed automatic transmission delivers seamless gear changes, and the engine’s robust low-end torque makes for effortless acceleration in typical driving scenarios. While not as aggressively sporty as the 435i, the 428i offers sufficient power for confident highway merging and passing. The 0-60 mph acceleration time is approximately 5.8 seconds. The Gran Coupe’s suspension, tuned for a balance of comfort and handling, provides a composed ride, even on imperfect road surfaces. The steering is precise and well-weighted, offering good feedback to the driver. Compared to the 6-speed manual transmission option, the automatic version prioritizes ease of use and fuel economy over maximum driver engagement.
Equipment & Trim Levels
The 428i Gran Coupe came standard with a comprehensive set of features, including leatherette upholstery, power-adjustable front seats, a 6.5-inch iDrive infotainment system, automatic climate control, and a suite of safety technologies like BMW Assist eCall. Popular optional extras included genuine leather upholstery, a premium sound system (Harman Kardon), navigation, a head-up display, and various driver-assistance features such as lane departure warning and blind-spot monitoring. Trim levels were relatively straightforward, with options primarily consisting of packages and standalone options rather than distinct trim designations. The Sport Line package added exterior styling enhancements and sport seats, while the Luxury Line focused on a more refined interior aesthetic.
Chassis & Braking
The F36 Gran Coupe utilizes a sophisticated chassis design, featuring an independent multi-link rear suspension and a lightweight aluminum front axle. This configuration contributes to the car’s balanced handling and comfortable ride quality. The 428i Gran Coupe is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS), dynamic stability control (DSC), and traction control are standard safety features. The suspension tuning is slightly softer than that of the 435i, reflecting the 428i’s emphasis on comfort and everyday usability.
Market Reception & Comparison
The BMW 428i Gran Coupe was generally well-received by automotive critics. Reviewers consistently praised its stylish design, comfortable interior, and engaging driving dynamics. The 2.0-liter turbocharged engine was lauded for its responsiveness and fuel efficiency. Compared to the 435i, the 428i offered a more accessible entry point into the 4 Series Gran Coupe range, although with slightly reduced performance. Fuel economy averaged around 35.6 mpg combined, making it a relatively efficient option within its class. Reliability reports suggest the N20 engine is generally reliable, although some owners have reported issues with oil leaks and cooling system components.
Legacy
The BMW 428i Gran Coupe (F36) remains a desirable used car choice, offering a compelling combination of style, performance, and practicality. The N20 engine, while not entirely without potential issues, is generally considered durable and relatively affordable to maintain. The 8-speed automatic transmission is also known for its reliability. As of today, well-maintained examples of the 428i Gran Coupe can be found at attractive prices, making it an appealing option for buyers seeking a premium four-door coupe experience. Its blend of BMW engineering and practical design ensures its continued appeal in the used car market.
