The BMW 4 Series Coupe (F32) 428i xDrive Steptronic, produced from October 2013 to March 2016, represents a compelling blend of performance and practicality within the broader 4 Series lineup. Positioned as a mid-range offering, it catered to buyers seeking all-wheel drive capability and a more refined driving experience than the base 420i, while remaining more accessible than the higher-performance 435i and 440i models. This variant was primarily marketed in North America, Europe, and other global markets where all-wheel drive was highly valued, particularly in regions experiencing inclement weather. The F32 generation 4 Series, as a whole, aimed to deliver a more sporting and stylish alternative to the 3 Series sedan, emphasizing a coupe-focused driving experience.
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Coupe (F32) |
| Type (Engine) | 428i (245 Hp) xDrive Steptronic |
| Start of production | October, 2013 |
| End of production | March, 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (economy) – urban (NEDC) | 8.7-8.8 l/100 km (27 – 26.7 US mpg) |
| Fuel consumption (economy) – extra urban (NEDC) | 5.5-5.6 l/100 km (42.8 – 42 US mpg) |
| Fuel consumption (economy) – combined (NEDC) | 6.7-6.8 l/100 km (35.1 – 34.6 US mpg) |
| CO2 emissions (NEDC) | 157-159 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.8 sec |
| Acceleration 0 – 62 mph | 5.8 sec |
| Acceleration 0 – 60 mph | 5.5 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 6.3 kg/Hp, 159.1 Hp/tonne |
| Weight-to-torque ratio | 4.4 kg/Nm, 227.3 Nm/tonne |
| Power | 245 Hp @ 5000-6500 rpm |
| 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-scroll turbo, Intercooler |
| Valvetrain | Double-VANOS, VALVETRONIC |
| Engine oil capacity | 5 l (5.28 US qt | 4.4 UK qt) |
| Coolant | 9.1 l (9.62 US qt | 8.01 UK qt) |
| Kerb Weight | 1540 kg (3395.12 lbs.) |
| Max. weight | 2060 kg (4541.52 lbs.) |
| Max load | 520 kg (1146.4 lbs.) |
| Trunk (boot) space – minimum | 445 l (15.72 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 (8%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load with brakes (12%) | 1700 kg (3747.86 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4638 mm (182.6 in.) |
| Width | 1825 mm (71.85 in.) |
| Width including mirrors | 2017 mm (79.41 in.) |
| Height | 1377 mm (54.21 in.) |
| Wheelbase | 2810 mm (110.63 in.) |
| Front track | 1545 mm (60.83 in.) |
| Rear (Back) track | 1594 mm (62.76 in.) |
| Front overhang | 787 mm (30.98 in.) |
| Rear overhang | 1041 mm (40.98 in.) |
| Ride height (ground clearance) | 145 mm (5.71 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle (turning diameter) | 11.8 m (38.71 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| Front suspension | Spring Strut, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| 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 | Front wheel tires: 225/50 R17; 225/45 R18; 225/40 R19; 225/35 R20Rear wheel tires: 225/50 R17; 225/45 R18; 255/40 R18; 255/35 R19; 255/30 R20 |
| Wheel rims size | Front wheel rims: 7.5J x 17; 8J x 18; 8J x 19; 8J x 20Rear wheel rims: 7.5J x 17; 8J x 18; 8.5J x 18; 8.5J x 19; 8.5J x 20 |
Powertrain & Engine Architecture
At the heart of the 428i xDrive Steptronic lies the BMW N20B20A 2.0-liter inline-four cylinder engine. This engine is a cornerstone of BMW’s modular engine family, known for its combination of direct fuel injection, a twin-scroll turbocharger, and variable valve timing (Double-VANOS and VALVETRONIC). The direct injection system delivers fuel directly into the combustion chamber, improving efficiency and responsiveness. The twin-scroll turbocharger minimizes turbo lag, providing a more immediate power delivery. VALVETRONIC allows for precise control of valve lift, optimizing engine performance and fuel economy across a wide range of driving conditions. The engine produces 245 horsepower at 5,000-6,500 rpm and 258 lb-ft of torque between 1,250 and 4,800 rpm. This power is channeled through an 8-speed Steptronic automatic transmission, which offers smooth and quick shifts. The xDrive all-wheel-drive system utilizes a multi-plate clutch to distribute power between the front and rear axles, enhancing traction and stability, especially in adverse weather conditions.
Driving Characteristics
The 428i xDrive Steptronic delivers a balanced driving experience. While not as overtly sporty as the 435i, the 2.0-liter turbo engine provides ample power for everyday driving and spirited acceleration. The 8-speed automatic transmission is well-tuned, offering seamless gear changes and contributing to a refined driving feel. The xDrive system provides confident handling and stability, particularly on slippery surfaces. Compared to the 6-speed manual transmission available on some 428i models, the Steptronic automatic prioritizes comfort and ease of use. The automatic’s gear ratios are optimized for both fuel efficiency and performance, with a focus on providing strong low-end torque for effortless cruising. While the 435i offered significantly more power, the 428i provided a more accessible and fuel-efficient option for buyers who didn’t require the ultimate in performance.
Equipment & Trim Levels
The 428i xDrive Steptronic came standard with a comprehensive list of features, including leatherette upholstery, power-adjustable front seats, a BMW iDrive infotainment system with a 6.5-inch display screen, automatic climate control, and a suite of safety features such as ABS, stability control, and multiple airbags. Optional extras included leather upholstery, a premium sound system, navigation, a sunroof, and various driver-assistance systems like lane departure warning and blind-spot monitoring. The interior design emphasized a driver-focused layout with a sporty aesthetic. Trim levels were relatively straightforward, with options primarily consisting of individual packages that added specific features and amenities.
Chassis & Braking
The 4 Series Coupe (F32) utilized a sophisticated chassis design featuring a MacPherson strut front suspension and a multi-link rear suspension. This setup provided a good balance of ride comfort and handling precision. The 428i xDrive models typically featured slightly stiffer suspension components compared to the base 420i to accommodate the increased weight of the all-wheel-drive system. Braking duties were handled by ventilated disc brakes on all four wheels, providing ample stopping power. The ABS system and electronic stability control further enhanced braking performance and safety. The steering system employed an electric power steering system, offering precise and responsive steering feel.
Market Reception & Comparison
The 428i xDrive Steptronic was generally well-received by automotive critics. It was praised for its refined driving experience, comfortable interior, and available all-wheel-drive system. Critics noted that the 2.0-liter engine provided sufficient power for most drivers, while the xDrive system enhanced confidence in all weather conditions. Compared to the 435i, the 428i offered a more affordable entry point into the 4 Series lineup, while still delivering a premium driving experience. Fuel economy was also a strong point, with the 428i achieving respectable MPG figures for a performance coupe. Reliability reports generally indicated good overall reliability, although some owners reported minor issues with the infotainment system and electrical components.
Legacy
The BMW 428i xDrive Steptronic has established itself as a reliable and desirable used car. The N20 engine, while not without its potential issues (such as oil leaks and timing chain wear), is generally considered durable when properly maintained. The 8-speed Steptronic transmission has also proven to be reliable. Today, these vehicles offer a compelling combination of performance, luxury, and practicality at a relatively affordable price point. The xDrive all-wheel-drive system remains a valuable asset for buyers in regions with challenging weather conditions, ensuring that the 428i continues to be a popular choice in the used car market.





