The BMW 740i (G11) Steptronic, produced from 2015 to 2019, represents a significant iteration of BMW’s flagship luxury sedan. Positioned as a mid-range offering within the sixth generation (G11) 7 Series lineup, it bridged the gap between the entry-level 730d and the high-performance 750i models. This variant focused on providing a balance of refined power, comfortable cruising, and advanced technology, appealing to buyers seeking a luxurious experience without the outright performance focus of the top-tier models. The G11 generation marked a substantial departure from its predecessor, incorporating extensive use of carbon fiber reinforced plastic (CFRP) in its structure to reduce weight and improve rigidity.
Technical Specifications
| Brand | BMW |
| Model | 7 Series |
| Generation | 7 Series (G11) |
| Type (Engine) | 740i (326 Hp) Steptronic |
| Start of production | 2015 |
| End of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (economy) – urban | 9.1-9.7 l/100 km (25.8 – 24.2 US mpg, 31 – 29.1 UK mpg, 11 – 10.3 km/l) |
| Fuel consumption (economy) – extra urban | 5.2-5.5 l/100 km (45.2 – 42.8 US mpg, 54.3 – 51.4 UK mpg, 19.2 – 18.2 km/l) |
| Fuel consumption (economy) – combined | 6.6-7.0 l/100 km (35.6 – 33.6 US mpg, 42.8 – 40.4 UK mpg, 15.2 – 14.3 km/l) |
| CO2 emissions | 154-164 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.5 sec |
| Acceleration 0 – 62 mph | 5.5 sec |
| Acceleration 0 – 60 mph | 5.2 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 5.3 kg/Hp, 189 Hp/tonne |
| Weight-to-torque ratio | 3.8 kg/Nm, 260.9 Nm/tonne |
| Power | 326 Hp @ 5500-6500 rpm |
| Power per litre | 108.7 Hp/l |
| Torque | 450 Nm @ 1380-5000 rpm (331.9 lb.-ft. @ 1380-5000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B58B30 |
| Engine displacement | 2998 cm3 (182.95 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 11:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant | 11.3 l (11.94 US qt | 9.94 UK qt) |
| Kerb Weight | 1725 kg (3802.97 lbs.) |
| Max. weight | 2400 kg (5291.09 lbs.) |
| Max load | 675 kg (1488.12 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 | 5098 mm (200.71 in.) |
| Width | 1902 mm (74.88 in.) |
| Height | 1478 mm (58.19 in.) |
| Wheelbase | 3070 mm (120.87 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) | 12.3 m (40.35 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 |
| Tires size | 225/60 R17 99Y; 245/50 R18; 245/45 R19; 275/40 R19; 245/40 R20; 275/35 R20; 245/35 R21; 275/30 R21 |
| Wheel rims size | 7.5J x 17; 8J x 18; 8.5J x 19; 9.5J x 19; 8.5J x 20; 10J x 20; 8.5J x 21; 10J x 21 |
INTRODUCTION
The BMW 740i (G11) Steptronic, produced between 2015 and 2019, is a luxury sedan that forms part of the sixth generation of the 7 Series. It’s powered by the B58 3.0-liter inline-six engine, paired with an eight-speed Steptronic automatic transmission. This combination aimed to deliver a balance of performance and efficiency, making it a popular choice for buyers who desired a comfortable and capable grand tourer. The G11 7 Series represented a significant leap forward in terms of technology, materials, and overall refinement compared to its F01 predecessor.
Powertrain & Engine Architecture
At the heart of the 740i lies the BMW B58B30 engine, a 3.0-liter inline-six cylinder engine. This engine is a member of BMW’s modular engine family, known for its efficiency and smooth power delivery. It utilizes direct fuel injection, a single twin-scroll turbocharger, and BMW’s Valvetronic variable valve timing and variable valve lift technology. The B58 produces 326 horsepower at 5500-6500 rpm and 450 Nm (331.9 lb-ft) of torque between 1380 and 5000 rpm. The engine’s longitudinal mounting and rear-wheel-drive configuration contribute to its balanced handling characteristics. The eight-speed Steptronic automatic transmission is a crucial component, offering smooth and quick shifts. It features a torque converter and allows for both fully automatic operation and manual gear selection via steering wheel-mounted paddles. The transmission is programmed for both comfort and efficiency, adapting its shift points based on driving style and conditions.
Driving Characteristics
The 740i Steptronic delivers a refined and comfortable driving experience. The B58 engine provides ample power for effortless acceleration and highway cruising. While not as overtly sporty as the 750i, the 740i offers a responsive and engaging driving experience. The eight-speed automatic transmission contributes to this, providing smooth and timely gear changes. The gear ratios are tuned for both fuel efficiency and performance, with a focus on maximizing torque in the lower gears for strong off-the-line acceleration. Compared to the 730d, the 740i offers noticeably more power and a more spirited driving experience. Compared to the 750i, it sacrifices some outright performance but gains in fuel efficiency and a slightly more balanced feel. The suspension, tuned for comfort, effectively absorbs road imperfections, providing a smooth and isolated ride.
Equipment & Trim Levels
The 740i 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 large infotainment screen with iDrive controller, navigation, and a suite of driver-assistance systems such as lane departure warning and automatic emergency braking. Optional extras included features like massaging seats, a rear-seat entertainment system, a panoramic sunroof, and advanced parking assistance features. Interior trim options ranged from wood veneers to aluminum accents, allowing buyers to personalize the cabin to their preferences. The standard dashboard configuration featured a combination of analog gauges and a central digital display, providing the driver with essential information.
Chassis & Braking
The G11 7 Series utilizes a sophisticated chassis design incorporating both steel and carbon fiber reinforced plastic (CFRP) in its structure. This construction technique reduces weight while increasing rigidity, resulting in improved handling and ride comfort. The 740i features a double-wishbone front suspension and an independent multi-link rear suspension. This setup provides excellent wheel control and a smooth ride. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. The 740i also incorporates ABS (Anti-lock Braking System), electronic stability control, and other advanced safety features.
Market Reception & Comparison
The BMW 740i Steptronic was generally well-received by automotive critics. It was praised for its refined engine, comfortable ride, and advanced technology. Critics noted that the B58 engine provided a good balance of power and efficiency, making it a practical choice for everyday driving. Compared to the 730d, the 740i was seen as a more rewarding driving experience, while offering similar levels of luxury. Compared to the 750i, it was considered a more sensible option for buyers who didn’t prioritize outright performance. Fuel economy figures were competitive for its class, and reliability proved to be generally good, although some owners reported minor issues with the infotainment system.
Legacy
The BMW 740i (G11) Steptronic has established itself as a reliable and desirable luxury sedan in the used car market. The B58 engine is known for its durability and relatively low maintenance costs. The G11 generation 7 Series, as a whole, is considered a significant step forward in terms of technology and refinement. The 740i, in particular, offers a compelling combination of performance, luxury, and value, making it a popular choice for buyers seeking a high-end sedan without the premium price tag of the top-tier models. Its blend of comfort, technology, and respectable performance ensures its continued appeal for years to come.
