2015-2019 BMW 7 Series Long (G12) 730Ld (265 Hp) xDrive Steptronic

The BMW 730Ld xDrive Steptronic, part of the G12 generation of the long-wheelbase 7 Series, was produced from 2015 to 2019. Positioned as a mid-range offering within the 7 Series lineup, it catered to buyers seeking a blend of luxury, performance, and fuel efficiency. The “L” designation signifies the extended wheelbase, providing increased rear passenger space – a particularly important feature in markets like China, where the 7 Series was often chauffeur-driven. This variant aimed to bridge the gap between the entry-level 730d and the more powerful 740i and 750i models, offering a compelling alternative for those prioritizing diesel economy without sacrificing a premium driving experience.

Technical Specifications

Powertrain & Engine Architecture

The 730Ld xDrive Steptronic is powered by the BMW B57D30A, a 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 common-rail direct injection system operating at extremely high pressures (2,200 bar) for optimized combustion. It utilizes a variable geometry turbocharger and an intercooler to enhance power and efficiency. The engine also incorporates BMW’s BluePower technology, including a diesel particulate filter and NOx catalyst to meet stringent Euro 6 emission standards. The engine produces 265 horsepower at 4,000 rpm and a substantial 620 Nm (457 lb-ft) of torque between 2,000 and 2,500 rpm. This torque output is a key characteristic of the engine, providing strong acceleration and effortless cruising. The engine is paired with an 8-speed Steptronic automatic transmission, which offers smooth and responsive gear changes. The xDrive all-wheel-drive system distributes power between the front and rear axles for enhanced traction and stability, particularly in adverse weather conditions.

Driving Characteristics

The 730Ld xDrive Steptronic delivers a refined and comfortable driving experience. While not as overtly sporty as the gasoline-powered 740i or 750i, the 730Ld offers ample performance for most driving situations. The high torque output of the diesel engine provides strong acceleration from low speeds, making it well-suited for city driving and overtaking maneuvers. The 8-speed automatic transmission is well-tuned, providing seamless gear changes and contributing to the overall smoothness of the ride. The xDrive all-wheel-drive system enhances stability and traction, particularly on slippery surfaces. Compared to the 730d with a manual transmission, the Steptronic automatic offers greater convenience and ease of use, although it may slightly diminish the driver’s sense of engagement. The long wheelbase contributes to a comfortable ride, absorbing bumps and imperfections in the road surface effectively.

Equipment & Trim Levels

The 730Ld xDrive Steptronic came standard with a comprehensive array of luxury features. These included leather upholstery, power-adjustable front seats with memory function, a premium sound system, a navigation system, and a rear-view camera. Standard safety features included ABS, stability control, multiple airbags, and parking sensors. Optional extras included features such as massaging seats, a panoramic sunroof, a head-up display, and advanced driver-assistance systems like adaptive cruise control and lane-keeping assist. Interior trim options included various wood veneers and aluminum accents, allowing buyers to personalize the cabin to their preferences. The extended wheelbase provided significantly more rear legroom compared to the standard-wheelbase 7 Series, making it a popular choice for those who frequently travel with passengers in the rear.

Chassis & Braking

The G12 7 Series features a sophisticated chassis design aimed at providing both comfort and handling. The front suspension utilizes a double-wishbone setup, while the rear suspension employs an independent multi-link design. This configuration helps to isolate the cabin from road imperfections and maintain a stable ride. The 730Ld xDrive Steptronic is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The ABS (Anti-lock Braking System) and stability control systems further enhance safety by preventing wheel lockup and maintaining vehicle control during emergency braking maneuvers. The steering system is a rack-and-pinion type with electric power assistance, offering precise and responsive steering feel.

Market Reception & Comparison

The 730Ld xDrive Steptronic was generally well-received by automotive critics. It was praised for its refined driving experience, luxurious interior, and impressive fuel economy. The diesel engine’s torque output was a particular highlight, providing strong performance without sacrificing efficiency. Compared to the 740i, the 730Ld offered a more affordable entry point into the 7 Series range, while still delivering a high level of luxury and refinement. However, some critics noted that the 730Ld lacked the outright performance of its gasoline-powered siblings. In terms of reliability, the B57 engine has proven to be generally robust, although diesel engines can be more susceptible to issues related to the fuel injection system and diesel particulate filter.

Legacy

The BMW 730Ld xDrive Steptronic (G12) represents a significant step forward in diesel luxury sedan technology. The B57 engine has become a mainstay in the BMW lineup, known for its durability and efficiency. On the used car market, these models offer a compelling value proposition, providing a luxurious and well-equipped driving experience at a more affordable price point than newer 7 Series models. While diesel vehicles have faced increased scrutiny in recent years due to emissions concerns, the 730Ld’s Euro 6 compliance and advanced emissions control systems help to mitigate these concerns. Well-maintained examples of the 730Ld continue to be sought after by buyers who appreciate the blend of luxury, performance, and fuel efficiency that this model offers.