The BMW 750Ld xDrive Steptronic, part of the G12 generation of the long-wheelbase 7 Series, was produced from 2016 to 2019. This model represented a significant offering in BMW’s flagship sedan lineup, particularly in European and Asian markets where diesel engines held considerable popularity. Positioned as a high-performance, luxury variant, the 750Ld bridged the gap between the standard 7 Series and the more potent, gasoline-powered M760i. It catered to buyers seeking a blend of refined comfort, impressive acceleration, and relatively good fuel economy for a vehicle of its size and class.
Technical Specifications
| Brand | BMW |
| Model | 7 Series |
| Generation | 7 Series Long (G12) |
| Type (Engine) | 750Ld (400 Hp) xDrive Steptronic |
| Start of production | 2016 |
| End of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 7.7-8.2 l/100 km (30.5 – 28.7 US mpg, 36.7 – 34.4 UK mpg, 13 – 12.2 km/l) |
| Fuel consumption (extra urban) | 5.4 l/100 km (43.6 US mpg, 52.3 UK mpg, 18.5 km/l) |
| Fuel consumption (combined) | 6.3-6.4 l/100 km (37.3 – 36.8 US mpg, 44.8 – 44.1 UK mpg, 15.9 – 15.6 km/l) |
| CO2 emissions | 165-169 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 4.7 sec |
| Acceleration 0 – 62 mph | 4.7 sec |
| Acceleration 0 – 60 mph | 4.5 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6c |
| Weight-to-power ratio | 5 kg/Hp, 202 Hp/tonne |
| Weight-to-torque ratio | 2.6 kg/Nm, 383.8 Nm/tonne |
| Power | 400 Hp @ 4400 rpm |
| Power per litre | 133.6 Hp/l |
| Torque | 760 Nm @ 2000-3000 rpm (560.55 lb.-ft. @ 2000-3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B57D30C |
| 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 | 16:1 |
| 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 | 11.9 l (12.57 US qt | 10.47 UK qt) |
| Kerb Weight | 1980 kg (4365.15 lbs.) |
| Max. weight | 2670 kg (5886.34 lbs.) |
| Max load | 690 kg (1521.19 lbs.) |
| Trunk (boot) space – minimum | 515 l (18.19 cu. ft.) |
| Fuel tank capacity | 78 l (20.61 US gal | 17.16 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 2300 kg (5070.63 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 100 kg (220.46 lbs.) |
| Length | 5238 mm (206.22 in.) |
| Width | 1902 mm (74.88 in.) |
| Height | 1467 mm (57.76 in.) |
| Wheelbase | 3210 mm (126.38 in.) |
| Front track | 1611 mm (63.43 in.) |
| Rear (Back) track | 1640 mm (64.57 in.) |
| Ride height (ground clearance) | 135 mm (5.31 in.) |
| Drag coefficient (Cd) | 0.26 |
| Minimum turning circle (turning diameter) | 12.9 m (42.32 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| Front suspension | Double wishbone |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
INTRODUCTION
The G12 7 Series, launched in 2015, represented a significant departure from its predecessor, incorporating extensive use of carbon fiber reinforced plastic (CFRP) in its structure to reduce weight. The long-wheelbase (L) variant offered increased rear passenger space, catering to those who prioritized luxury and comfort. The 750Ld xDrive Steptronic, introduced shortly after the initial launch, brought a potent diesel engine to the lineup, offering a compelling alternative to the gasoline-powered options. This model was primarily aimed at the European and Asian markets, where diesel engines were favored for their fuel efficiency and torque.
Powertrain & Engine Architecture
At the heart of the 750Ld lay the BMW B57D30C, a 3.0-liter inline-six diesel engine. This engine was a member of the modular BMW engine family, known for its robust construction and advanced technology. The B57 featured a common-rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A sophisticated twin-turbocharger setup, utilizing a variable geometry turbocharger (VGT) and a conventional turbocharger, provided both strong low-end torque and high-end power. The engine also incorporated an intercooler to further enhance performance. The 750Ld was exclusively paired with BMW’s 8-speed Steptronic automatic transmission, known for its smooth shifts and efficiency. This transmission featured steering wheel-mounted paddle shifters for manual control, although the primary focus was on providing a relaxed and effortless driving experience.
Driving Characteristics
The 750Ld xDrive Steptronic delivered a remarkably refined driving experience. The 760 Nm (560.55 lb-ft) of torque, available from just 2000 rpm, provided effortless acceleration in virtually any situation. While not as overtly sporty as the gasoline-powered 750i, the 750Ld offered a 0-60 mph time of around 4.5 seconds, making it exceptionally quick for a large luxury sedan. The 8-speed automatic transmission was well-matched to the engine’s characteristics, providing smooth and seamless gear changes. The xDrive all-wheel-drive system ensured excellent traction and stability, particularly in adverse weather conditions. Compared to the 750i, the 750Ld prioritized torque and fuel economy over outright horsepower, making it a more practical choice for long-distance driving.
Equipment & Trim Levels
The 750Ld xDrive Steptronic came standard with a comprehensive array of luxury features. These included leather upholstery, power-adjustable heated and ventilated front seats with massage function, a premium sound system, a large infotainment screen with iDrive controller, and a suite of advanced driver-assistance systems such as adaptive cruise control, lane departure warning, and automatic emergency braking. Optional extras included rear-seat entertainment systems, a panoramic sunroof, and various customization options for interior trim and exterior paint.
Chassis & Braking
The G12 7 Series utilized a sophisticated chassis design incorporating CFRP in the roof structure and other key areas to reduce weight and improve rigidity. The 750Ld featured a double-wishbone front suspension and an independent multi-link rear suspension, providing a comfortable and controlled ride. Ventilated disc brakes were fitted on all four wheels, providing ample stopping power. The electronic stability control system and anti-lock braking system (ABS) worked in conjunction to enhance safety and stability.
Market Reception & Comparison
The 750Ld xDrive Steptronic was generally well-received by automotive critics. It was praised for its refined driving experience, powerful engine, and luxurious interior. However, some reviewers noted that the diesel engine lacked the aural excitement of the gasoline-powered alternatives. Compared to the 750i, the 750Ld offered superior fuel economy and a broader torque curve, making it a more practical choice for those who prioritized efficiency and long-distance comfort. Against competitors like the Mercedes-Benz S 350 d, the 750Ld offered a similar blend of luxury and performance, with BMW’s reputation for driver engagement giving it a slight edge in some opinions.
Legacy
The B57 engine family has proven to be exceptionally reliable, and the 750Ld powertrain is no exception. Well-maintained examples continue to offer strong performance and relatively low running costs. In the used car market, the 750Ld represents a compelling value proposition for buyers seeking a high-performance luxury sedan with good fuel economy. While diesel vehicles have faced increased scrutiny in recent years, the 750Ld remains a desirable and capable grand tourer, appreciated for its blend of comfort, performance, and refinement.
