The BMW 4 Series Coupe (F32) 435d xDrive Steptronic, produced from 2013 to 2016, represents a compelling blend of performance, efficiency, and luxury within the F32 generation of BMW’s 4 Series. Positioned as a mid-to-high range offering, the 435d catered to buyers seeking a refined grand tourer with strong diesel power and all-wheel drive capability. It served as a key model in BMW’s strategy to offer a diverse range of powertrains within the 4 Series lineup, appealing to European markets particularly where diesel engines held significant popularity. This variant distinguished itself from its gasoline-powered siblings (like the 435i) and other diesel options (like the 420d) through its potent six-cylinder engine and sophisticated xDrive all-wheel drive system.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Coupe (F32) |
| Type (Engine) | 435d (313 Hp) xDrive Steptronic |
| Start of production | 2013 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (urban) | 6.4-6.6 l/100 km (36.8 – 35.6 US mpg, 44.1 – 42.8 UK mpg, 15.6 – 15.2 km/l) |
| Fuel consumption (extra urban) | 4.9-5.0 l/100 km (48 – 47 US mpg, 57.6 – 56.5 UK mpg, 20.4 – 20 km/l) |
| Fuel consumption (combined) | 5.4-5.6 l/100 km (43.6 – 42 US mpg, 52.3 – 50.4 UK mpg, 18.5 – 17.9 km/l) |
| CO2 emissions | 143-146 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 4.7 sec |
| Acceleration 0 – 62 mph | 4.7 sec |
| Acceleration 0 – 60 mph | 4.5 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 5.2 kg/Hp, 192.6 Hp/tonne |
| Weight-to-torque ratio | 2.6 kg/Nm, 387.7 Nm/tonne |
| Power | 313 Hp @ 4400 rpm |
| Power per litre | 104.6 Hp/l |
| Torque | 630 Nm @ 1500-2500 rpm (464.66 lb.-ft. @ 1500-2500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N57D30B |
| 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 | Turbocharger, 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 | 1625 kg (3582.51 lbs.) |
| Max. weight | 2145 kg (4728.92 lbs.) |
| Max load | 520 kg (1146.4 lbs.) |
| Trunk (boot) space – minimum | 445 l (15.72 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 | 1392 mm (54.8 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) | 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; 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 435d xDrive is BMW’s N57D30B inline-six diesel engine. This engine, a member of the widely-respected N57 family, is characterized by its robust construction and sophisticated technology. It utilizes a common-rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. The N57D30B features a single variable geometry turbocharger (VGT) and an intercooler, enhancing both power and torque output. The engine’s aluminum alloy cylinder head incorporates four valves per cylinder, contributing to efficient gas exchange. The 8-speed Steptronic automatic transmission, a hallmark of BMW’s modern drivetrains, is paired with the engine. This transmission offers smooth and quick shifts, and features adaptive learning to tailor shift points to the driver’s style. The xDrive all-wheel drive system intelligently distributes torque between the front and rear axles, enhancing traction and stability in various driving conditions.
Driving Characteristics
The 435d xDrive Steptronic delivers a refined and capable driving experience. The engine’s substantial 630 Nm (464.66 lb-ft) of torque, available from a low 1500 rpm, provides effortless acceleration in everyday driving situations. While not as overtly sporty as the 435i, the 435d offers brisk performance, achieving 0-60 mph in approximately 4.5 seconds. The 8-speed automatic transmission contributes to this performance, providing seamless gear changes. The xDrive system enhances grip, particularly on wet or slippery surfaces, inspiring confidence. The steering is precise and well-weighted, typical of BMW’s engineering. Compared to the manual transmission versions of the 435d, the Steptronic automatic prioritizes comfort and ease of use, though it may slightly diminish driver engagement.
Equipment & Trim Levels
The 435d xDrive Steptronic typically came well-equipped as standard. Features included leather upholstery, automatic climate control, a BMW iDrive infotainment system with a central display screen, and a suite of safety features like ABS, stability control, and multiple airbags. Optional extras were plentiful, allowing buyers to personalize their vehicles. Popular options included a premium sound system, navigation system, heated seats, a sunroof, and various driver assistance systems such as lane departure warning and adaptive cruise control. Interior trim options ranged from aluminum to wood veneers, allowing for a degree of customization.
Chassis & Braking
The 4 Series Coupe (F32) utilizes a sophisticated chassis design. The front suspension features independent coil springs and struts, while the rear employs an independent multi-link setup. This configuration provides a good balance between ride comfort and handling precision. The 435d xDrive was equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The braking system is augmented by ABS and electronic brakeforce distribution. Due to the increased weight of the xDrive system, the 435d often featured slightly stiffer suspension components compared to rear-wheel drive models to maintain handling balance.
Market Reception & Comparison
The 435d xDrive Steptronic was generally well-received by automotive critics. It was praised for its strong performance, fuel efficiency, and refined driving experience. The combination of a powerful diesel engine and all-wheel drive proved particularly appealing in European markets. Compared to the 435i, the 435d offered comparable performance with significantly better fuel economy. The 420d, while more affordable, lacked the outright power and refinement of the 435d. Some critics noted that the diesel engine’s character was less engaging than the gasoline engines, but the overall package was considered a compelling offering.
Legacy
The N57D30B engine has proven to be remarkably durable and reliable, with many examples exceeding high mileage with proper maintenance. The 8-speed Steptronic transmission is also known for its longevity. The 435d xDrive Steptronic remains a desirable used car today, offering a blend of performance, luxury, and efficiency. However, potential buyers should be aware of the maintenance requirements associated with diesel engines, including regular servicing of the diesel particulate filter (DPF). Overall, the 435d xDrive Steptronic represents a well-engineered and capable grand tourer that continues to provide a rewarding driving experience.
