The BMW 4 Series Gran Coupe (F36) 418d, produced from 2015 to 2016, represents a compelling entry point into the 4 Series lineup. Positioned as a fuel-efficient and refined option, this variant combined a 2.0-liter turbocharged diesel engine with an eight-speed automatic transmission, offering a balance between performance and economy within the Gran Coupe body style. The F36 generation, built on the F30 3 Series platform, aimed to provide a more stylish and practical alternative to traditional coupes, offering five doors and a larger cargo area. This specific 418d model was primarily marketed in Europe and other regions where diesel engines were favored, offering a sophisticated and economical grand touring experience.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Gran Coupe (F36) |
| Type (Engine) | 418d (150 Hp) |
| Start of production | 2015 |
| End of production | 2016 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 5.0-5.4 l/100 km (47 – 43.6 US mpg) |
| Fuel consumption (extra urban) | 3.6-3.9 l/100 km (65.3 – 60.3 US mpg) |
| Fuel consumption (combined) | 4.1-4.5 l/100 km (57.4 – 52.3 US mpg) |
| CO2 emissions | 109-118 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 9 sec |
| Acceleration 0 – 62 mph | 9 sec |
| Acceleration 0 – 60 mph | 8.6 sec |
| Maximum speed | 213 km/h (132.35 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 10.1 kg/Hp |
| Weight-to-torque ratio | 4.7 kg/Nm |
| Power | 150 Hp @ 4000 rpm |
| Torque | 320 Nm @ 1500-3000 rpm (236.02 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B47D20A |
| Engine displacement | 1995 cm3 (121.74 cu. in.) |
| Number of cylinders | 4 |
| 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 | 5 l (5.28 US qt | 4.4 UK qt) |
| Coolant | 7 l (7.4 US qt | 6.16 UK qt) |
| Kerb Weight | 1510 kg (3328.98 lbs.) |
| Max. weight | 2070 kg (4563.57 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%) | 1600 kg (3527.4 lbs.) |
| Permitted trailer load without brakes | 745 kg (1642.44 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4638 mm (182.6 in.) |
| Width | 1825 mm (71.85 in.) |
| Height | 1389 mm (54.69 in.) |
| Wheelbase | 2810 mm (110.63 in.) |
| Front track | 1557 mm (61.3 in.) |
| Rear (Back) track | 1605 mm (63.19 in.) |
| Ride height (ground clearance) | 130 mm (5.12 in.) |
| Drag coefficient (Cd) | 0.27 |
| Minimum turning circle | 11.3 m (37.07 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 8 gears, automatic 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 | 205/60 R16 92V; 225/50 R17; 225/45 R18; 255/40 R18; 225/40 R19; 255/35 R19 |
| Wheel rims size | 7J x 16; 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 418d Gran Coupe is the BMW B47D20A, a 2.0-liter inline-four cylinder diesel engine. This engine is a member of BMW’s modular engine family, known for its efficiency and refinement. It utilizes a second-generation common rail direct injection system operating at pressures up to 2,000 bar, ensuring precise fuel delivery and optimized combustion. The engine is equipped with a twin-scroll turbocharger with variable geometry turbine (VGT) technology, and intercooling, which helps to minimize turbo lag and maximize power output across a broad RPM range. The B47 engine also features BMW’s BluePower technology, including a diesel particulate filter and NOx catalyst to meet stringent Euro 6 emission standards. Paired with the engine is BMW’s ZF 8HP eight-speed automatic transmission. This transmission is renowned for its smooth and quick shifts, contributing to both fuel efficiency and a comfortable driving experience. The transmission features adaptive shift programs that adjust to the driver’s style and road conditions.
Driving Characteristics
The 418d Gran Coupe, with its 150 horsepower and 320 Nm (236 lb-ft) of torque, offered a relaxed and refined driving experience. Acceleration from 0-60 mph took approximately 8.6 seconds, and top speed was limited to 132.35 mph. While not a performance-oriented variant, the engine provided ample torque from low RPMs, making it well-suited for everyday driving and long-distance cruising. The eight-speed automatic transmission played a crucial role in optimizing fuel economy and ensuring smooth gear changes. Compared to the more powerful 420d or 430d models, the 418d prioritized fuel efficiency and comfort over outright speed. The automatic transmission, while convenient, did slightly diminish the sense of driver engagement compared to the available six-speed manual option.
Equipment & Trim Levels
The 418d Gran Coupe typically came standard with features such as automatic climate control, a BMW iDrive infotainment system with a 6.5-inch display, power-adjustable front seats, and a leather-wrapped steering wheel. Upholstery options included cloth or leatherette, with full leather available as an upgrade. Common optional extras included a larger iDrive display, navigation system, premium sound system, sunroof, and various driver-assistance features like parking sensors and lane departure warning. Trim levels varied by market, but generally offered packages that bundled popular options together. The overall interior design emphasized a sporty yet luxurious aesthetic, typical of BMW’s design language.
Chassis & Braking
The F36 4 Series Gran Coupe utilized a sophisticated chassis design featuring an independent suspension setup at both the front and rear. The front suspension employed coil springs and dampers, while the rear utilized a multi-link setup. This configuration provided a good balance between ride comfort and handling precision. The 418d typically came equipped with ventilated disc brakes on all four wheels, providing adequate stopping power for its weight class. Anti-lock Braking System (ABS) and Electronic Stability Control (ESC) were standard safety features. The steering system was a rack-and-pinion setup with electric power assistance, offering precise and responsive steering feel.
Market Reception & Comparison
The 418d Gran Coupe was generally well-received by automotive critics as a practical and efficient option within the 4 Series range. It was praised for its fuel economy, comfortable ride, and refined interior. However, some reviewers noted that the engine lacked the outright performance of its more powerful siblings. Compared to the 420d, the 418d offered a lower price point but sacrificed some performance. Against competitors like the Audi A5 Sportback and Volkswagen Passat CC, the 418d stood out with its sporty handling and premium interior. Its fuel economy was competitive within its class, making it an attractive option for drivers prioritizing efficiency.
Legacy
The B47 engine, found in the 418d, has proven to be a relatively reliable powertrain, although some early models experienced issues with timing chain tensioners. Regular maintenance, including oil changes and adherence to BMW’s recommended service intervals, is crucial for long-term reliability. On the used car market, the 418d Gran Coupe represents a good value proposition, offering a blend of style, practicality, and fuel efficiency. Its relatively low running costs and comfortable driving experience continue to make it a popular choice for buyers seeking a premium grand tourer.
