The BMW 730Ld (G12 LCI) represents a specific variant of the long-wheelbase 7 Series, produced from 2019 to July 2020. Positioned as a diesel-powered option within the facelifted sixth generation (G12) of BMW’s flagship sedan, the 730Ld aimed to balance luxury, performance, and fuel efficiency. The “LCI” designation signifies the Life Cycle Impulse, BMW’s term for a significant mid-cycle refresh. This model was primarily targeted towards markets where diesel engines remained popular, offering a refined driving experience and long-distance comfort. It sat in the mid-range of the 7 Series lineup, offering a step down in power from the 740i and 750i models, but providing a more economical alternative.
Technical Specifications
| Brand | BMW |
| Model | 7 Series |
| Generation | 7 Series Long (G12 LCI, facelift 2019) |
| Type (Engine) | 730Ld (265 Hp) Steptronic |
| Start of production | 2019 |
| End of production | July, 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 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) |
| Fuel consumption (extra urban) | 4.8-5.0 l/100 km (49 – 47 US mpg, 58.9 – 56.5 UK mpg, 20.8 – 20 km/l) |
| Fuel consumption (combined) | 5.3-5.5 l/100 km (44.4 – 42.8 US mpg, 53.3 – 51.4 UK mpg, 18.9 – 18.2 km/l) |
| CO2 emissions | 139-145 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 6.2 sec |
| Acceleration 0 – 62 mph | 6.2 sec |
| Acceleration 0 – 60 mph | 5.9 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d-TEMP |
| Weight-to-power ratio | 7.3 kg/Hp, 136.2 Hp/tonne |
| Weight-to-torque ratio | 3.1 kg/Nm, 318.8 Nm/tonne |
| Power | 265 Hp @ 4000 rpm |
| Torque | 620 Nm @ 2000-2500 rpm (457.29 lb.-ft. @ 2000-2500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B57D30A |
| 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 |
| 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 | 1945 kg (4287.99 lbs.) |
| Max. weight | 2560 kg (5643.83 lbs.) |
| Max load | 615 kg (1355.84 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%) | 2100 kg (4629.71 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 100 kg (220.46 lbs.) |
| Length | 5260 mm (207.09 in.) |
| Width | 1902 mm (74.88 in.) |
| Height | 1479 mm (58.23 in.) |
| Wheelbase | 3210 mm (126.38 in.) |
| Front track | 1618 mm (63.7 in.) |
| Rear (Back) track | 1646 mm (64.8 in.) |
| Ride height (ground clearance) | 135 mm (5.31 in.) |
| Drag coefficient (Cd) | 0.24 |
| Minimum turning circle (turning diameter) | 12.8 m (41.99 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 | 8 gears, automatic transmission Steptronic |
| Front suspension | Double wishbone |
| 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 | 225/60 R17 99Y |
| Wheel rims size | 7.5J x 17 |
Powertrain & Engine Architecture
The 730Ld is powered by the BMW B57D30A, a 3.0-liter inline-six diesel engine. This engine is a member of the modular B-series engine family, known for its efficiency and refinement. The B57 features a common-rail direct fuel injection system operating at extremely high pressures (2,200 bar) for optimized combustion. It utilizes a twin-scroll turbocharger with variable geometry turbine (VGT) technology, along with intercooling, to deliver strong torque across a broad rev range. The engine also incorporates BMW’s BluePower technology, including a diesel particulate filter and NOx catalyst to meet stringent Euro 6d-TEMP emission standards. The engine is paired with BMW’s 8-speed Steptronic automatic transmission, which offers smooth and quick gear changes. This transmission is known for its adaptability, offering both automatic and manual shift modes.
Driving Characteristics
The 730Ld delivers a relaxed and refined driving experience. While not as overtly sporty as its gasoline-powered siblings, the 620 Nm (457 lb-ft) of torque provides ample power for effortless cruising and confident overtaking. The 8-speed Steptronic transmission is well-matched to the engine’s characteristics, providing smooth upshifts and downshifts. Acceleration from 0 to 60 mph takes approximately 5.9 seconds. Compared to the 740i, the 730Ld offers less outright acceleration, but its superior torque at lower engine speeds makes it feel responsive in everyday driving situations. The long wheelbase contributes to a comfortable ride, absorbing bumps and imperfections in the road effectively.
Equipment & Trim Levels
The 730Ld typically came well-equipped, reflecting its position as a luxury sedan. Standard features included leather upholstery, power-adjustable front seats with memory function, a premium sound system, a large infotainment screen with iDrive controller, and a comprehensive suite of safety features such as automatic emergency braking, lane departure warning, and adaptive cruise control. Optional extras included features like massaging seats, a rear-seat entertainment system, and upgraded leather trim. The interior design was characterized by high-quality materials and a minimalist aesthetic.
Chassis & Braking
The 730Ld utilizes a double-wishbone front suspension and an independent multi-link rear suspension, providing a comfortable and controlled ride. The suspension is electronically controlled, adapting to road conditions and driving style. Ventilated disc brakes are fitted on all four wheels, providing strong stopping power. The car is equipped with ABS, DSC (Dynamic Stability Control), and other electronic stability systems. Due to the added weight of the diesel engine, the 730Ld may have slightly different spring rates and stabilizer bar thicknesses compared to lighter gasoline-powered models.
Market Reception & Comparison
The 730Ld was generally well-received by automotive critics, who praised its fuel efficiency, refined driving experience, and luxurious interior. However, some reviewers noted that the diesel engine lacked the responsiveness and sound of the gasoline engines. Compared to the 740i, the 730Ld offered better fuel economy but less performance. Against competitors like the Mercedes-Benz S 350 d and Audi A8 50 TDI, the 730Ld held its own in terms of refinement and technology.
Legacy
The B57 engine family, including the B57D30A found in the 730Ld, has proven to be remarkably reliable. These engines are known for their durability and longevity, provided they are properly maintained. In the used car market, the 730Ld represents a good value proposition for buyers seeking a luxurious and fuel-efficient sedan. However, potential buyers should be aware of the potential costs associated with diesel engine maintenance, such as diesel particulate filter (DPF) replacement. The G12 7 Series, including the 730Ld, is considered a technologically advanced and comfortable luxury car that continues to be a desirable option in the used car market.
