2019-2022 BMW 7 Series Long (G12 LCI facelift ) 750Ld (400 Hp) xDrive Steptronic

The BMW 750Ld xDrive, part of the G12 Long wheelbase (LCI) facelift introduced in 2019, represents a significant offering in the luxury sedan segment. Produced through 2022, this variant combined a powerful diesel engine with BMW’s xDrive all-wheel-drive system and the Steptronic automatic transmission. Positioned as a high-performance, long-wheelbase option, the 750Ld aimed to deliver both refined comfort and strong acceleration, particularly appealing to buyers prioritizing fuel efficiency alongside luxury. It sat near the top of the 7 Series range, below the petrol-powered M760i but above the 740d and 730d models.

Powertrain & Engine Architecture

The heart of the 750Ld is BMW’s B57D30C 3.0-liter inline-six diesel engine. This engine is a member of the modular BMW engine family, known for its robust construction and advanced technology. The B57 features a cast iron block, aluminum cylinder head, and a sophisticated common-rail direct injection system operating at extremely high pressures (typically around 2,500 bar) for optimized fuel atomization and combustion. A key element is the two-stage turbocharging system – a smaller turbocharger for quick response at low engine speeds, coupled with a larger turbocharger for sustained power at higher RPMs. This configuration minimizes turbo lag and delivers a broad, flat torque curve. The engine also incorporates variable valve timing (VANOS) and variable turbine geometry (VTG) on the turbochargers to further enhance efficiency and performance. Paired with the engine is the ZF 8HP80 eight-speed automatic transmission, marketed by BMW as “Steptronic.” This transmission is renowned for its smooth shifts, efficiency, and adaptability, offering both automatic and manual shift modes. The xDrive all-wheel-drive system distributes power between the front and rear axles as needed, enhancing traction and stability in various driving conditions.

Driving Characteristics

The 750Ld xDrive delivers a distinctly different driving experience compared to its gasoline-powered siblings. The substantial 760 Nm (560 lb-ft) of torque, available from just 2000 rpm, provides effortless acceleration and strong in-gear performance. While not as outright quick as the M760i, the 4.7-second 0-60 mph time is more than adequate for a luxury sedan of this size. The Steptronic transmission is well-tuned to the engine’s characteristics, providing seamless gear changes and contributing to a relaxed cruising experience. The xDrive system ensures confident handling in all weather conditions. Compared to the 740d, the 750Ld offers a noticeable power increase, resulting in more responsive acceleration. The longer wheelbase of the ‘L’ model contributes to a more comfortable ride, particularly on long journeys, but slightly reduces agility compared to the standard wheelbase 7 Series.

Equipment & Trim Levels

The 750Ld xDrive typically came generously equipped. Standard features included BMW’s iDrive infotainment system with a large touchscreen display, premium leather upholstery, power-adjustable heated and ventilated front seats with massage function, a panoramic sunroof, and a high-end sound system. Available options included rear-seat entertainment systems, individual rear seats with a center console, various interior trim options (wood, aluminum, carbon fiber), and advanced driver-assistance systems such as adaptive cruise control, lane-keeping assist, and a 360-degree camera. The long-wheelbase configuration inherently provides more rear legroom, making it a popular choice for chauffeur-driven executives.

Chassis & Braking

The G12 7 Series utilizes a sophisticated chassis design featuring a double-wishbone front suspension and an independent multi-link rear suspension. Air suspension is standard on the 750Ld, providing adjustable ride height and further enhancing ride comfort. The suspension is electronically controlled, adapting to road conditions and driving style. Braking duties are handled by ventilated disc brakes on all four wheels. The 750Ld typically features larger brake rotors compared to lower-trim models to cope with the increased power and weight. Anti-lock braking system (ABS), electronic stability control (ESC), and traction control are standard safety features.

Market Reception & Comparison

The 750Ld xDrive was generally well-received by automotive critics. It was praised for its powerful and refined engine, comfortable ride, and luxurious interior. The combination of performance and fuel efficiency was a key selling point. Compared to the 740d, the 750Ld offered a significant performance upgrade, justifying the higher price tag for buyers prioritizing power. However, some critics noted that the diesel engine, while refined, lacked the aural excitement of the gasoline engines. Fuel economy figures were consistently impressive, making it a cost-effective option for high-mileage drivers.

Legacy

The B57 engine family has proven to be exceptionally reliable, and the 750Ld powertrain is generally considered durable. Properly maintained examples are known to exceed high mileage without major issues. On the used car market, the 750Ld xDrive holds its value relatively well, particularly those with a comprehensive service history and desirable options. The combination of luxury, performance, and fuel efficiency continues to make it an attractive option for buyers seeking a high-end sedan. However, potential buyers should be aware of the potential costs associated with maintaining a complex luxury vehicle, including the cost of diesel particulate filter (DPF) maintenance and potential repairs to the air suspension system.