The BMW 840d xDrive, part of the G16 LCI (Life Cycle Impulse, or facelift) generation of the 8 Series Gran Coupe, represents a compelling blend of performance, luxury, and efficiency. Introduced in March 2022, this variant occupies a significant position within the 8 Series lineup, offering a diesel-powered alternative to the gasoline-fueled 840i and the high-performance M8. The G16 LCI builds upon the foundation of the original G16 platform launched in 2018, refining the design and incorporating updated technology. This model specifically caters to buyers seeking a grand touring experience with strong torque and improved fuel economy, particularly in European markets where diesel remains popular.
Technical Specifications
| Brand | BMW |
| Model | 8 Series |
| Generation | 8 Series Gran Coupe (G16 LCI, facelift 2022) |
| Type (Engine) | 840d (340 Hp) Mild Hybrid xDrive Steptronic |
| Start of production | March, 2022 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | Coupe |
| Seats | 5 |
| Doors | 4 |
| Combined fuel consumption (WLTP) | 6.7-7.1 l/100 km (35.1 – 33.1 US mpg, 42.2 – 39.8 UK mpg, 14.9 – 14.1 km/l) |
| CO2 emissions (WLTP) | 174-186 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 5 sec |
| Acceleration 0 – 62 mph | 5 sec |
| Acceleration 0 – 60 mph | 4.8 sec |
| Maximum speed | 250 km/h (155.34 mph) – Electronically limited |
| Emission standard | Euro 6d |
| Weight-to-power ratio | 5.9 kg/Hp, 170.4 Hp/tonne |
| Weight-to-torque ratio | 2.9 kg/Nm, 350.9 Nm/tonne |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Battery location | Under the front hood |
| Electric motor power | 11 Hp |
| Electric motor location | Front, Longitudinal |
| Power | 340 Hp @ 4400 rpm |
| Torque | 700 Nm @ 1750-2250 rpm (516.29 lb.-ft. @ 1750-2250 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B57D30B |
| 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 |
| Valvetrain | DOHC |
| Engine oil capacity | 7 l (7.4 US qt | 6.16 UK qt) |
| Kerb Weight | 1995 kg (4398.22 lbs.) |
| Max. weight | 2600 kg (5732.02 lbs.) |
| Max load | 605 kg (1333.8 lbs.) |
| Trunk (boot) space – minimum | 440 l (15.54 cu. ft.) |
| Fuel tank capacity | 66 l (17.44 US gal | 14.52 UK gal) |
| AdBlue tank | 18.5 l (4.89 US gal | 4.07 UK gal) |
| Length | 5082 mm (200.08 in.) |
| Width | 1932 mm (76.06 in.) |
| Width including mirrors | 2137 mm (84.13 in.) |
| Height | 1407 mm (55.39 in.) |
| Wheelbase | 3023 mm (119.02 in.) |
| Front track | 1627 mm (64.06 in.) |
| Rear (Back) track | 1671 mm (65.79 in.) |
| Front overhang | 953 mm (37.52 in.) |
| Rear overhang | 1106 mm (43.54 in.) |
| Ride height (ground clearance) | 121 mm (4.76 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle | 12.6 m (41.34 ft.) |
| Drivetrain Architecture | ICE and electric motor drive all four wheels, operating in mixed mode. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 8 |
| Gearbox type | Automatic transmission Steptronic |
| Front suspension | Double wishbone |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Steering type | Steering rack and pinion |
| Power steering | Electric |
| Front tires | 245/40 R19; 245/35 R20 |
| Rear tires | 275/35 R19; 275/30 R20 |
| Front wheel rims | 8J x 19; 8J x 20 |
| Rear wheel rims | 9J x 19; 9J x 20 |
Powertrain & Engine Architecture
The heart of the 840d xDrive is BMW’s B57D30B 3.0-liter inline-six diesel engine. This engine is a member of the modular B-series engine family, known for its robust construction and efficiency. The ‘D30’ designation indicates a displacement of 3.0 liters. The engine utilizes a sophisticated diesel commonrail fuel injection system, delivering fuel at extremely high pressures for optimized combustion. A twin-turbocharger setup, incorporating both a low-pressure and a high-pressure turbo, provides broad torque across the rev range. The intercooler helps to cool the intake air, further enhancing performance. The engine also features a 48V mild-hybrid system, which provides a small power boost during acceleration and enables smoother start-stop operation, contributing to improved fuel economy. The 8-speed Steptronic automatic transmission is standard, offering smooth and quick shifts. It’s programmed to prioritize efficiency while still providing responsive performance when needed.
Driving Characteristics
The 840d xDrive delivers a distinctly different driving experience compared to its gasoline-powered siblings. While lacking the outright top-end rush of the 840i, the 840d compensates with a substantial 700 Nm (516 lb-ft) of torque available from just 1750 rpm. This translates to effortless acceleration in everyday driving situations and strong performance during overtaking maneuvers. The 0-60 mph time of around 4.8 seconds is respectable for a large, luxury coupe. The Steptronic transmission is well-matched to the engine’s characteristics, providing seamless gear changes. The xDrive all-wheel-drive system ensures excellent traction in all weather conditions, enhancing stability and confidence. Compared to a manual transmission, the automatic prioritizes comfort and ease of use, but may feel slightly less engaging for driving enthusiasts.
Equipment & Trim Levels
The 840d xDrive typically comes well-equipped as standard. Interior features include premium leather upholstery, power-adjustable seats with memory function, a large infotainment display with iDrive controller, and a high-end sound system. Standard safety features include automatic emergency braking, lane departure warning, and adaptive cruise control. Optional extras include upgraded leather options, a Bowers & Wilkins Diamond surround sound system, active roll stabilization, and various driver-assistance systems. The LCI facelift brought subtle interior refinements, including updated trim options and improved infotainment software.
Chassis & Braking
The 8 Series Gran Coupe features a sophisticated chassis designed to balance comfort and handling. The front suspension utilizes a double-wishbone setup, while the rear employs an independent multi-link suspension. This configuration provides a smooth ride and precise control. The 840d xDrive is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The electronic stability control system (DSC) works in conjunction with the xDrive all-wheel-drive system to maintain stability and prevent skidding. The steering is electrically assisted, offering precise and responsive feel.
Market Reception & Comparison
The 840d xDrive was generally well-received by automotive critics. It was praised for its strong performance, refined ride, and impressive fuel economy. Compared to the 840i, the 840d offered a more relaxed and efficient driving experience, making it a better choice for long-distance touring. However, some critics noted that the diesel engine lacked the aural excitement of the gasoline engine. Against competitors like the Mercedes-Benz S-Class Coupe and the Porsche Panamera, the 840d xDrive offered a compelling combination of luxury, performance, and value.
Legacy
The B57 engine family, including the B57D30B found in the 840d, has proven to be remarkably reliable. With proper maintenance, these engines can accumulate high mileage without major issues. The 840d xDrive, while not as common as its gasoline counterparts, has established a reputation as a durable and refined grand tourer. On the used car market, well-maintained examples command a premium due to their combination of performance, luxury, and efficiency. The mild-hybrid technology, while relatively simple, contributes to improved fuel economy and reduced emissions, making it a desirable feature for environmentally conscious buyers.
