The BMW 4 Series Gran Coupe (F36), specifically the 435d xDrive Steptronic variant produced from 2017 to 2021, represents a compelling blend of performance, practicality, and luxury within the BMW lineup. This model, part of the F36 lifecycle facelift, offered a diesel-powered Gran Coupe option aimed at buyers seeking efficiency and strong torque delivery without sacrificing the sporty character associated with the 4 Series. Positioned as a mid-to-upper range trim, the 435d xDrive Steptronic catered to those desiring a more refined and powerful experience than the entry-level 420d, but without the outright performance focus of the M4. It occupied a niche between fuel economy and performance, appealing to drivers covering significant distances or requiring a versatile vehicle for both business and leisure.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Gran Coupe (F36, facelift 2017) |
| Type (Engine) | 435d (313 Hp) xDrive Steptronic |
| Start of production | 2017 |
| End of production | 2021 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 6.7 l/100 km (35.1 US mpg, 42.2 UK mpg, 14.9 km/l) |
| Fuel consumption (extra urban) | 4.9-5.1 l/100 km (48 – 46.1 US mpg, 57.6 – 55.4 UK mpg, 20.4 – 19.6 km/l) |
| Fuel consumption (combined) | 5.6-5.7 l/100 km (42 – 41.3 US mpg, 50.4 – 49.6 UK mpg, 17.9 – 17.5 km/l) |
| CO2 emissions | 146-150 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 4.8 sec |
| Acceleration 0 – 62 mph | 4.8 sec |
| Acceleration 0 – 60 mph | 4.6 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 5.4 kg/Hp, 184.1 Hp/tonne |
| Weight-to-torque ratio | 2.7 kg/Nm, 370.6 Nm/tonne |
| Power | 313 Hp @ 4400 rpm |
| 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 | 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 | 1700 kg (3747.86 lbs.) |
| Max. weight | 2260 kg (4982.45 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 | 4640 mm (182.68 in.) |
| Width | 1825 mm (71.85 in.) |
| Height | 1404 mm (55.28 in.) |
| Wheelbase | 2810 mm (110.63 in.) |
| Front track | 1543 mm (60.75 in.) |
| Rear (Back) track | 1592 mm (62.68 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 Steptronic is BMW’s N57D30B inline-six diesel engine. This 3.0-liter engine utilizes a sophisticated common-rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. The N57 engine family is renowned for its durability and efficiency. The 435d variant benefits from a twin-turbocharger setup – a smaller turbo for quick response at low engine speeds and a larger turbo for sustained power at higher RPMs. An intercooler further enhances performance by cooling the compressed intake air. The engine produces 313 horsepower at 4400 rpm and a substantial 630 Nm (464.66 lb-ft) of torque between 1500 and 2500 rpm. This broad torque curve is a key characteristic of the N57, providing strong acceleration in virtually any gear. The engine is paired with BMW’s 8-speed Steptronic automatic transmission, known for its smooth shifts and intelligent programming. This transmission allows for both fully automatic operation and manual gear selection via steering wheel-mounted paddles or the gear selector.
Driving Characteristics
The 435d xDrive Steptronic delivers a refined and capable driving experience. The abundant torque allows for effortless cruising and strong overtaking performance. While not as overtly sporty as the gasoline-powered 435i or M4, the 435d offers a more than adequate level of performance for most drivers. The xDrive all-wheel-drive system provides excellent traction in all weather conditions, enhancing stability and confidence. The 8-speed automatic transmission is well-matched to the engine’s characteristics, providing smooth and timely gear changes. Compared to the 420d, the 435d offers a noticeable increase in power and responsiveness. However, the 435d doesn’t quite match the sharper throttle response and higher revving nature of the 435i. The gear ratios are tuned for a balance of acceleration and fuel efficiency, prioritizing mid-range punch over outright top-end speed.
Equipment & Trim Levels
The 435d 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 were plentiful, allowing buyers to personalize their vehicles. These included features like a premium sound system, navigation, adaptive cruise control, a head-up display, and various interior trim options. The Gran Coupe body style itself offered increased practicality compared to the standard 4 Series Coupe, with a larger rear hatch and more usable rear seating.
Chassis & Braking
The 435d xDrive Steptronic utilizes a sophisticated chassis design. The front suspension features independent coil springs, while the rear employs an independent multi-link setup. This configuration provides a good balance of ride comfort and handling precision. The xDrive all-wheel-drive system distributes power between the front and rear axles as needed, optimizing traction and stability. Braking duties are handled by ventilated discs on all four wheels, providing ample stopping power. The electronic stability control system further enhances safety by helping to prevent skids and loss of control.
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. Compared to the gasoline-powered 435i, the 435d offered superior fuel economy and a broader torque curve, making it a more practical choice for long-distance drivers. However, some critics noted that the diesel engine lacked the responsiveness and aural excitement of the gasoline counterpart. In terms of reliability, the N57 engine family has proven to be relatively robust, although preventative maintenance, particularly regarding the diesel particulate filter (DPF), is crucial.
Legacy
The BMW 435d xDrive Steptronic (F36) remains a desirable used car option. The N57 engine is known for its longevity, and with proper maintenance, these vehicles can provide many years of reliable service. The combination of performance, practicality, and fuel efficiency continues to appeal to a wide range of buyers. However, potential buyers should be aware of the potential costs associated with maintaining a diesel vehicle, including DPF regeneration and AdBlue refills. The F36 4 Series Gran Coupe, particularly the 435d variant, represents a sweet spot in the BMW lineup, offering a compelling blend of luxury, performance, and everyday usability.
