The BMW 4 Series Coupe (F32) 430i xDrive Steptronic represents a compelling blend of performance and practicality within the F32 generation, produced primarily for the 2016 model year. Positioned as a mid-range offering in the 4 Series lineup, it aimed to deliver a more accessible entry point to the coupe experience while still providing the BMW driving dynamics enthusiasts expect. This variant combined a 2.0-liter turbocharged four-cylinder engine with BMW’s xDrive all-wheel-drive system and an eight-speed Steptronic automatic transmission, targeting buyers seeking a balance between efficiency, all-weather capability, and comfortable cruising. It served as a key model in BMW’s strategy to broaden the appeal of the 4 Series beyond the traditionally focused sports coupe demographic.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Coupe (F32) |
| Type (Engine) | 430i (252 Hp) xDrive Steptronic |
| Start of production | 2016 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 7.5-7.8 l/100 km (31.4 – 30.2 US mpg) |
| Fuel consumption (extra urban) | 5.0-5.2 l/100 km (47 – 45.2 US mpg) |
| Fuel consumption (combined) | 5.9-6.2 l/100 km (39.9 – 37.9 US mpg) |
| CO2 emissions | 138-144 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) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 6.3 kg/Hp, 160 Hp/tonne |
| Weight-to-torque ratio | 4.5 kg/Nm, 222.2 Nm/tonne |
| Power | 252 Hp @ 5200 rpm |
| Torque | 350 Nm @ 1450-4800 rpm (258.15 lb.-ft. @ 1450-4800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B48B20B |
| Engine displacement | 1998 cm3 (121.93 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 10.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Engine oil capacity | 5.3 l (5.6 US qt | 4.66 UK qt) |
| Coolant | 7.8 l (8.24 US qt | 6.86 UK qt) |
| Kerb Weight | 1575 kg (3472.28 lbs.) |
| Max. weight | 2095 kg (4618.68 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 (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.) |
| Height | 1392 mm (54.8 in.) |
| Wheelbase | 2810 mm (110.63 in.) |
| Front track | 1544 mm (60.79 in.) |
| Rear (Back) track | 1590 mm (62.6 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.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| 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; 225/45 R18; 255/40 R18; 225/40 R19; 255/35 R19 |
| Wheel rims size | 7.5J x 17; 8J x 18; 8.5J x 18; 8J x 19; 8.5J x 19 |
Powertrain & Engine Architecture
The heart of the 430i xDrive Steptronic is BMW’s B48B20B 2.0-liter inline-four cylinder engine. This engine utilizes direct fuel injection and a single twin-scroll turbocharger, delivering a robust 252 horsepower at 5200 rpm and 350 Nm (258 lb-ft) of torque from 1450 to 4800 rpm. The B48 engine family represented a significant step forward in BMW’s engine technology, featuring a modular design and improved efficiency compared to its predecessors. The engine’s Valvetronic variable valve timing and Double VANOS continuously variable camshaft timing contribute to its responsiveness and fuel economy. The eight-speed Steptronic automatic transmission is a cornerstone of the driving experience, offering smooth and quick shifts. It’s programmed for both comfort and performance, adapting to the driver’s style. The xDrive all-wheel-drive system employs a multi-plate clutch to distribute torque between the front and rear axles, enhancing traction and stability in various driving conditions.
Driving Characteristics
The 430i xDrive Steptronic delivers a refined and capable driving experience. While not as overtly sporty as the 440i models, the 2.0-liter turbo engine provides ample power for everyday driving and spirited acceleration. The 0-60 mph sprint takes approximately 5.5 seconds. The Steptronic transmission is well-matched to the engine’s characteristics, providing seamless gear changes and contributing to a comfortable ride. The xDrive system provides enhanced grip, particularly in inclement weather, making the 430i a confident all-season performer. Compared to the manual transmission versions, the Steptronic offers convenience and ease of use, but some enthusiasts may find it less engaging. The gear ratios are tuned for a balance of acceleration and fuel efficiency, with a relatively tall final drive.
Equipment & Trim Levels
The 430i xDrive Steptronic typically came standard with features such as leatherette upholstery, power-adjustable front seats, a BMW iDrive infotainment system with a 6.5-inch display, automatic climate control, and a suite of safety features including ABS, stability control, and multiple airbags. Optional extras included leather upholstery, a larger iDrive display, navigation, a premium sound system, and various driver-assistance technologies like lane departure warning and adaptive cruise control. Interior trim options ranged from basic matte finishes to more luxurious wood or aluminum accents.
Chassis & Braking
The F32 4 Series Coupe features a sophisticated chassis design with an independent suspension at all four corners. The front suspension utilizes coil springs and struts, while the rear employs a multi-link setup. This configuration provides a good balance of ride comfort and handling precision. The 430i xDrive Steptronic typically came equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The electronic stability control system integrates with the ABS to enhance braking performance and stability.
Market Reception & Comparison
The 430i xDrive Steptronic was generally well-received by automotive critics. It was praised for its comfortable ride, refined interior, and capable all-wheel-drive system. However, some reviewers noted that the 2.0-liter engine lacked the outright performance of the larger six-cylinder engines offered in other 4 Series models. Compared to the 428i (the predecessor model), the 430i offered a modest power increase and improved fuel efficiency. Against competitors like the Audi A5 Coupe and Mercedes-Benz C-Class Coupe, the 430i xDrive Steptronic offered a compelling combination of performance, luxury, and technology.
Legacy
The B48 engine family, including the B48B20B found in the 430i, has proven to be relatively reliable, although some early models experienced issues with oil leaks and cooling system components. The eight-speed Steptronic transmission is also generally considered durable. On the used car market, the 430i xDrive Steptronic represents a good value proposition, offering a well-equipped and capable coupe at a reasonable price. Its blend of performance, practicality, and all-weather capability continues to appeal to a wide range of buyers.
