The BMW 4 Series Gran Coupe (F36), specifically the 430i variant produced from 2017 to 2021 following the facelift, represents a compelling blend of practicality and performance within the BMW lineup. Positioned as a mid-range offering, the 430i Gran Coupe aimed to bridge the gap between the entry-level 420i and the more potent 440i models. Built on the F36 chassis, part of the broader F30 3 Series family, the Gran Coupe distinguished itself with its four-door coupe body style, offering increased accessibility and interior space compared to the traditional 4 Series Coupe. This model year saw significant updates to the pre-facelift F36, including revised styling, updated technology, and refinements to the engine and chassis.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Gran Coupe (F36, facelift 2017) |
| Type (Engine) | 430i (252 Hp) |
| Start of production | 2017 |
| End of production | 2021 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 7.9-8.4 l/100 km (29.8 – 28 US mpg) |
| Fuel consumption (extra urban) | 5.1-5.4 l/100 km (46.1 – 43.6 US mpg) |
| Fuel consumption (combined) | 6.1-6.5 l/100 km (38.6 – 36.2 US mpg) |
| CO2 emissions | 143-151 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.9 sec |
| Acceleration 0 – 62 mph | 5.9 sec |
| Acceleration 0 – 60 mph | 5.6 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 6 kg/Hp, 165.8 Hp/tonne |
| Weight-to-torque ratio | 4.3 kg/Nm, 230.3 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 | 5.25 l (5.55 US qt | 4.62 UK qt) |
| Coolant | 8.1 l (8.56 US qt | 7.13 UK qt) |
| Kerb Weight | 1520 kg (3351.03 lbs.) |
| Max. weight | 2080 kg (4585.62 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 | 60 l (15.85 US gal | 13.2 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 1600 kg (3527.4 lbs.) |
| Permitted trailer load without brakes | 745 kg (1642.44 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4640 mm (182.68 in.) |
| Width | 1825 mm (71.85 in.) |
| Height | 1389 mm (54.69 in.) |
| Wheelbase | 2810 mm (110.63 in.) |
| Front track | 1545 mm (60.83 in.) |
| Rear (Back) track | 1592 mm (62.68 in.) |
| Ride height (ground clearance) | 130 mm (5.12 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11.3 m (37.07 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| 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 |
INTRODUCTION
The 2017-2021 BMW 430i Gran Coupe (F36) represents a significant evolution of BMW’s four-door coupe concept. Following the LCI (Life Cycle Impulse) facelift, this iteration of the 4 Series Gran Coupe offered a refined aesthetic, updated technology, and a more efficient powertrain. The F36 chassis, shared with the 3 Series (F30), provided a solid foundation for a vehicle designed to appeal to buyers seeking a blend of sporty handling, luxurious comfort, and practical usability. The 430i trim, powered by the B48 engine, served as a sweet spot in the range, offering a balance between performance and fuel economy.
Powertrain & Engine Architecture
At the heart of the 430i Gran Coupe lies the BMW B48B20B 2.0-liter turbocharged inline-four cylinder engine. This engine, a member of BMW’s modular engine family, utilizes direct fuel injection and a twin-scroll turbocharger to deliver 252 horsepower at 5200 rpm and 350 Nm (258 lb-ft) of torque between 1450 and 4800 rpm. The B48 engine is known for its responsiveness and efficiency, benefiting from features like Valvetronic variable valve timing and a sophisticated engine management system. The 6-speed manual transmission was standard, providing drivers with a direct connection to the powertrain. The engine’s longitudinal mounting and rear-wheel-drive configuration contribute to the car’s balanced handling characteristics.
Driving Characteristics
The 430i Gran Coupe with the manual transmission delivers a refined and engaging driving experience. While not as overtly sporty as the 440i, the 2.0-liter turbo engine provides ample power for everyday driving and spirited excursions. The 6-speed manual gearbox offers precise shifts and allows drivers to fully exploit the engine’s torque band. Compared to the higher-output 440i, the 430i feels slightly less urgent off the line, but its lighter weight and well-tuned chassis contribute to nimble handling. The steering is precise and well-weighted, providing good feedback to the driver. The suspension strikes a good balance between comfort and control, absorbing bumps effectively while maintaining body control in corners.
Equipment & Trim Levels
The 430i Gran Coupe came standard with a comprehensive list of features, including leatherette upholstery, automatic climate control, a 6.5-inch iDrive infotainment system, and a suite of safety technologies like ABS, stability control, and airbags. Optional extras included leather upholstery, a larger iDrive screen with navigation, a premium sound system, a sunroof, and various driver-assistance features such as lane departure warning and adaptive cruise control. Trim levels offered different aesthetic enhancements, such as sport packages with unique exterior styling and interior trim options.
Chassis & Braking
The F36 Gran Coupe utilizes a sophisticated chassis design featuring an independent coil spring suspension at the front and an independent multi-link suspension at the rear. This setup provides a comfortable ride and precise handling. The 430i Gran Coupe is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The standard ABS (Anti-lock Braking System) enhances braking performance and stability, particularly in adverse conditions. The car’s relatively low center of gravity and well-tuned suspension contribute to its balanced handling characteristics.
Market Reception & Comparison
The 2017-2021 BMW 430i Gran Coupe was generally well-received by automotive critics. Reviewers praised its stylish design, comfortable interior, and engaging driving dynamics. The 430i was often seen as a more sensible alternative to the 440i, offering a good balance of performance and fuel economy. Compared to the 420i, the 430i provided a noticeable boost in power and performance. Fuel economy figures were competitive for its class, with combined fuel consumption ranging from 6.1 to 6.5 l/100 km (38.6 – 36.2 US mpg). Reliability was generally good, although some owners reported minor issues with the infotainment system and electrical components.
Legacy
The BMW 430i Gran Coupe (F36) has established itself as a desirable used car option. The B48 engine has proven to be relatively reliable, and the car’s overall build quality is high. The Gran Coupe’s unique blend of practicality and style continues to appeal to buyers seeking a premium four-door coupe. While newer generations of the 4 Series Gran Coupe have emerged, the F36 remains a compelling choice for those looking for a well-rounded and engaging driving experience at a more accessible price point. Its combination of performance, comfort, and practicality ensures its continued presence on the used car market for years to come.
