The BMW 4 Series Gran Coupe (F36) 430d xDrive Steptronic, produced from 2014 to 2016, represents a compelling blend of performance, practicality, and luxury within the F36 Gran Coupe range. Positioned as a mid-to-upper tier offering, the 430d combined a potent diesel engine with BMW’s xDrive all-wheel-drive system and the smooth operation of the Steptronic automatic transmission. This variant aimed to appeal to buyers seeking a refined grand tourer with strong fuel efficiency and all-weather capability. It occupied a space between the entry-level 420d models and the higher-performance 440i variants, offering a balance of power and economy.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Gran Coupe (F36) |
| Type (Engine) | 430d (258 Hp) xDrive Steptronic |
| Start of production | 2014 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 6.2-6.5 l/100 km (37.9 – 36.2 US mpg, 45.6 – 43.5 UK mpg, 16.1 – 15.4 km/l) |
| Fuel consumption (extra urban) | 4.9 l/100 km (48 US mpg, 57.6 UK mpg, 20.4 km/l) |
| Fuel consumption (combined) | 5.3-5.5 l/100 km (44.4 – 42.8 US mpg, 53.3 – 51.4 UK mpg, 18.9 – 18.2 km/l) |
| CO2 emissions | 140-144 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 5.3 sec |
| Acceleration 0 – 62 mph | 5.3 sec |
| Acceleration 0 – 60 mph | 5 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 6.5 kg/Hp, 154 Hp/tonne |
| Weight-to-torque ratio | 3 kg/Nm, 334.3 Nm/tonne |
| Power | 258 Hp @ 4000 rpm |
| Torque | 560 Nm @ 1500-3000 rpm (413.03 lb.-ft. @ 1500-3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N57D30A |
| Engine displacement | 2993 cm3 (182.64 cu. in.) |
| Number of cylinders | 6 |
| 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 | Twin-power turbo, Intercooler |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant | 7.2 l (7.61 US qt | 6.34 UK qt) |
| Kerb Weight | 1675 kg (3692.74 lbs.) |
| Max. weight | 2235 kg (4927.33 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 | 57 l (15.06 US gal | 12.54 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 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 | 1404 mm (55.28 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) | 0.29 |
| 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 430d xDrive Steptronic is BMW’s N57D30A 3.0-liter inline-six diesel engine. This engine is a member of the highly regarded N57 family, known for its robust construction and refined power delivery. The N57D30A utilizes a common rail direct injection system, injecting fuel at extremely high pressures for optimized combustion. It’s equipped with a twin-scroll turbocharger with variable geometry turbine (VGT) technology, along with an intercooler, to maximize power and torque while minimizing turbo lag. The engine produces 258 horsepower at 4,000 rpm and a substantial 560 Nm (413 lb-ft) of torque between 1,500 and 3,000 rpm. This broad torque curve provides strong acceleration in virtually any gear.
The “Steptronic” transmission is BMW’s name for its 8-speed automatic gearbox. This transmission is renowned for its smooth and quick shifts, contributing to both performance and fuel efficiency. The transmission is electronically controlled and features adaptive learning, adjusting shift points based on driving style. The xDrive all-wheel-drive system is a sophisticated system that continuously varies the torque split between the front and rear axles, providing optimal traction in all conditions.
Driving Characteristics
The 430d xDrive Steptronic delivers a refined and capable driving experience. The abundant torque from the diesel engine provides strong off-the-line acceleration and effortless cruising. While not as overtly sporty as the gasoline-powered 440i, the 430d offers a more than adequate level of performance for most drivers. The 8-speed automatic transmission contributes to a relaxed driving experience, seamlessly shifting through the gears. The xDrive system enhances stability and grip, particularly on wet or slippery surfaces. The steering is precise and well-weighted, providing good feedback to the driver. Compared to the manual transmission versions of the 430d, the Steptronic offers greater convenience, especially in urban traffic, but may slightly diminish driver engagement.
Equipment & Trim Levels
The 430d xDrive Steptronic typically came well-equipped as standard. Common features included leather upholstery, automatic climate control, a BMW iDrive infotainment system with a central display screen, and a suite of safety features such as ABS, stability control, and multiple airbags. Optional extras included features like a premium sound system, navigation, heated seats, a sunroof, and various driver assistance systems like lane departure warning and adaptive cruise control. Trim levels could vary slightly depending on the market, but generally offered packages that bundled together popular options.
Chassis & Braking
The F36 Gran Coupe features a sophisticated chassis design. The front suspension utilizes independent coil springs and struts, while the rear suspension employs an independent multi-link setup. This configuration provides a good balance of ride comfort and handling precision. The 430d xDrive Steptronic was equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The braking system is assisted by ABS (Anti-lock Braking System) and electronic brake-force distribution. Stabilizer bars are fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The 430d xDrive Steptronic was generally well-received by automotive critics. It was praised for its strong performance, excellent fuel economy, and refined driving experience. Compared to the 420d, the 430d offered a significant power upgrade, making it a more enjoyable car to drive. Compared to the 440i, the 430d provided a more fuel-efficient option, albeit with slightly less outright performance. The diesel engine’s torque advantage also made it a more capable tow vehicle. Fuel economy figures consistently hovered around 44-45 mpg (US) on the combined cycle, making it an attractive option for drivers covering long distances.
Legacy
The N57 engine family, including the N57D30A, has proven to be remarkably reliable, provided it has been properly maintained. While diesel engines can be susceptible to issues with the particulate filter and fuel injection system, these engines are generally robust. The 8-speed Steptronic transmission is also known for its durability. Today, used examples of the 430d xDrive Steptronic represent a good value proposition, offering a blend of luxury, performance, and fuel efficiency. However, potential buyers should carefully inspect the vehicle’s maintenance history and ensure that all scheduled services have been performed.
