The BMW 4 Series Gran Coupe (F36) 418d, produced from 2014 to 2015, represented an entry point into the Gran Coupe body style within the broader 4 Series lineup. Positioned as a fuel-efficient and relatively affordable option, it aimed to attract buyers seeking the practicality of a five-door coupe with the prestige of the BMW brand. This variant utilized a 2.0-liter turbocharged diesel engine paired with an 8-speed automatic transmission, offering a balance between performance and economy. It was a key model in BMW’s strategy to expand the 4 Series range and appeal to a wider customer base, particularly in European markets where diesel engines were highly favored.
Technical Specifications
| Brand | BMW |
| Model | 4 Series |
| Generation | 4 Series Gran Coupe (F36) |
| Type (Engine) | 418d (143 Hp) |
| Start of production | 2014 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 5.4 l/100 km (43.6 US mpg, 52.3 UK mpg, 18.5 km/l) |
| Fuel consumption (economy) – extra urban | 4 l/100 km (58.8 US mpg, 70.6 UK mpg, 25 km/l) |
| Fuel consumption (economy) – combined | 4.5 l/100 km (52.3 US mpg, 62.8 UK mpg, 22.2 km/l) |
| CO2 emissions | 119 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 9.2 sec |
| Acceleration 0 – 62 mph | 9.2 sec |
| Acceleration 0 – 60 mph | 8.7 sec |
| Maximum speed | 213 km/h (132.35 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 10.4 kg/Hp, 96 Hp/tonne |
| Weight-to-torque ratio | 4.7 kg/Nm, 214.8 Nm/tonne |
| Power | 143 Hp @ 4000 rpm |
| Power per litre | 71.7 Hp/l |
| Torque | 320 Nm @ 1750-2500 rpm (236.02 lb.-ft. @ 1750-2500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N47D20C |
| 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 | 5.2 l (5.49 US qt | 4.58 UK qt) |
| Coolant | 7 l (7.4 US qt | 6.16 UK qt) |
| Kerb Weight | 1490 kg (3284.89 lbs.) |
| Max. weight | 2050 kg (4519.48 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 (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 | 205/60 R16 92V |
| Wheel rims size | 6.0J x 16 |
INTRODUCTION
The BMW 418d Gran Coupe, launched in 2014, was a significant addition to BMW’s 4 Series range. Built on the F36 chassis, which shared its underpinnings with the 3 Series (F30), it offered a more practical alternative to the traditional coupe while maintaining a stylish and sporty aesthetic. The “d” designation indicated a diesel engine, and the “18” signified its position as a lower-powered variant. This model was primarily aimed at the European market, where diesel-powered vehicles were popular due to their fuel efficiency and lower running costs. The 418d Gran Coupe provided a compelling package for buyers seeking a premium vehicle with a focus on economy and practicality.
Powertrain & Engine Architecture
At the heart of the 418d Gran Coupe lay the N47D20C engine, a 2.0-liter inline-four cylinder diesel engine. This engine was a mainstay in BMW’s lineup, known for its efficiency and relatively smooth operation. It featured common-rail direct injection, delivering fuel at extremely high pressure for optimized combustion. The N47D20C also incorporated a twin-scroll turbocharger with an intercooler, enhancing power output and responsiveness. The engine produced 143 horsepower at 4,000 rpm and 320 Nm (236 lb-ft) of torque between 1,750 and 2,500 rpm. This torque band provided good low-end grunt, making it suitable for everyday driving. The engine’s architecture included four valves per cylinder and a compression ratio of 16.5:1. The 418d was typically equipped with an 8-speed automatic transmission, known for its smooth shifts and contribution to fuel efficiency. This transmission offered both automatic and manual shift modes, allowing drivers to tailor the driving experience to their preferences.
Driving Characteristics
The 418d Gran Coupe, with its 143 hp and automatic transmission, offered a comfortable and refined driving experience. While not overtly sporty, it provided adequate performance for most driving situations. Acceleration from 0 to 60 mph took approximately 8.7 seconds, and the top speed was limited to 132.35 mph. The 8-speed automatic transmission played a crucial role in optimizing fuel economy and providing smooth gear changes. The gear ratios were tuned to prioritize efficiency, resulting in relaxed cruising at highway speeds. Compared to higher-output 4 Series variants, such as the 420d or 435i, the 418d felt less eager to accelerate, but its torque-rich engine provided sufficient power for overtaking maneuvers. The suspension setup, featuring independent coil springs at the front and an independent multi-link suspension at the rear, delivered a comfortable ride quality, absorbing bumps and imperfections in the road effectively.
Equipment & Trim Levels
The 418d Gran Coupe came standard with a respectable level of equipment. Standard features typically included automatic climate control, a BMW iDrive infotainment system with a 6.5-inch display screen, Bluetooth connectivity, and power-adjustable front seats. Interior upholstery was typically cloth, although leather options were available. Optional extras included a larger iDrive screen, navigation system, premium sound system, sunroof, and various driver-assistance features such as parking sensors and lane departure warning. Trim levels were relatively simple, with most customization options available as individual upgrades. The interior design was typical of BMW, with a focus on functionality and a premium feel. The Gran Coupe’s five-door layout offered improved practicality compared to the standard 4 Series Coupe, with easier access to the rear seats and a larger cargo area.
Chassis & Braking
The F36 chassis of the 418d Gran Coupe featured a robust construction with a focus on handling and safety. The front suspension utilized independent coil springs, while the rear suspension employed an independent multi-link setup. This configuration provided a good balance between ride comfort and handling precision. The braking system consisted of ventilated discs on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) was standard, enhancing safety during emergency braking situations. The steering system was a rack-and-pinion setup with electric power assistance, offering precise and responsive steering feel. The 418d Gran Coupe’s weight of approximately 1490 kg (3284.89 lbs) was relatively moderate, contributing to its agile handling characteristics.
Market Reception & Comparison
The BMW 418d Gran Coupe received generally positive reviews from automotive critics. It was praised for its fuel efficiency, comfortable ride, and stylish design. However, some critics noted that its performance was not as exhilarating as that of higher-powered 4 Series variants. Compared to the 420d Gran Coupe, which featured a more powerful engine, the 418d offered lower running costs but sacrificed some performance. Against competitors such as the Audi A5 Sportback and the Volkswagen Passat CC, the 418d Gran Coupe stood out with its premium brand image and refined driving experience. Its fuel economy figures of around 52.3 US mpg combined were particularly attractive to buyers seeking a cost-effective vehicle.
Legacy
The BMW 418d Gran Coupe, while a relatively short-lived model, has established a reputation for reliability and fuel efficiency. The N47D20C engine, despite some early issues with timing chain tensioners, has proven to be a durable and long-lasting unit when properly maintained. On the used car market, the 418d Gran Coupe remains a popular choice for buyers seeking a premium vehicle with low running costs. Its combination of practicality, style, and efficiency continues to appeal to a wide range of drivers. The F36 chassis, known for its solid construction and refined handling, has also contributed to the model’s enduring appeal.
