The BMW 740Li xDrive, produced from 2012 to 2015 as part of the F02 LCI (Life Cycle Impulse) facelift of the sixth-generation 7 Series, represented a significant offering in the large luxury sedan segment. Positioned as a mid-range variant within the long-wheelbase 7 Series lineup, the 740Li bridged the gap between the entry-level 730Li and the flagship 750Li models. The “Li” designation signifies the extended wheelbase, providing increased rear passenger legroom – a particularly important feature in markets like China, where the car saw substantial sales. This model combined a potent turbocharged inline-six engine with BMW’s xDrive all-wheel-drive system and an eight-speed Steptronic automatic transmission, aiming to deliver a balance of performance, luxury, and all-weather capability.
Technical Specifications
| Brand | BMW |
| Model | 7 Series |
| Generation | 7 Series Long (F02 LCI, facelift 2012) |
| Type (Engine) | 740Li (320 Hp) xDrive Steptronic |
| Start of production | 2012 |
| End of production | 2015 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 11.2 l/100 km (21 US mpg, 25.2 UK mpg, 8.9 km/l) |
| Fuel consumption (extra urban) | 6.6 l/100 km (35.6 US mpg, 42.8 UK mpg, 15.2 km/l) |
| Fuel consumption (combined) | 8.3 l/100 km (28.3 US mpg, 34 UK mpg, 12 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.6 sec |
| Acceleration 0 – 62 mph | 5.6 sec |
| Acceleration 0 – 60 mph | 5.3 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Weight-to-power ratio | 6.2 kg/Hp, 160.4 Hp/tonne |
| Weight-to-torque ratio | 4.4 kg/Nm, 225.6 Nm/tonne |
| Power | 320 Hp @ 5800 rpm |
| Power per litre | 107.4 Hp/l |
| Torque | 450 Nm @ 1300-4500 rpm (331.9 lb.-ft. @ 1300-4500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N55B30A |
| Engine displacement | 2979 cm3 (181.79 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 89.6 mm (3.53 in.) |
| Compression ratio | 10.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant | 10.2 l (10.78 US qt | 8.97 UK qt) |
| Kerb Weight | 1995 kg (4398.22 lbs.) |
| Max. weight | 2610 kg (5754.07 lbs.) |
| Max load | 615 kg (1355.84 lbs.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Length | 5219 mm (205.47 in.) |
| Width | 1902 mm (74.88 in.) |
| Height | 1471 mm (57.91 in.) |
| Wheelbase | 3210 mm (126.38 in.) |
| Front track | 1611 mm (63.43 in.) |
| Rear track | 1650 mm (64.96 in.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 8 |
| Gearbox type | automatic transmission Steptronic |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 245/50 R18 100Y |
| Wheel rims size | 8J x 18 |
Powertrain & Engine Architecture
The heart of the 740Li was the N55B30A, a 3.0-liter inline-six cylinder engine. This engine was a cornerstone of BMW’s engine lineup for many years, known for its smooth power delivery and responsiveness. The N55 featured direct fuel injection, a twin-scroll turbocharger, and Double-VANOS variable valve timing for both intake and exhaust camshafts. These technologies contributed to both performance and efficiency. The engine produced 320 horsepower at 5800 rpm and 331.9 lb-ft of torque between 1300 and 4500 rpm. The eight-speed Steptronic automatic transmission, a BMW staple, provided smooth and quick shifts. The xDrive all-wheel-drive system intelligently distributed power between the front and rear axles, enhancing traction and stability in various driving conditions. The transmission was tuned for comfort and refinement, prioritizing smooth gear changes over aggressive shifts.
Driving Characteristics
The 740Li offered a refined and comfortable driving experience. While not as overtly sporty as the 750Li, the 320 hp engine provided ample power for effortless cruising and confident overtaking. The xDrive system instilled a sense of security, particularly in inclement weather. The eight-speed transmission’s close gear ratios kept the engine in its optimal power band, contributing to responsive acceleration. Compared to the 730Li, the 740Li offered a noticeable performance upgrade, while remaining more fuel-efficient than the larger, V8-powered 750Li. The long wheelbase contributed to a smooth ride, absorbing bumps and imperfections in the road surface effectively.
Equipment & Trim Levels
The 740Li came standard with a comprehensive array of luxury features. Leather upholstery, power-adjustable heated front seats, a premium sound system, and a navigation system were all included as standard equipment. Rear passengers benefited from the extended wheelbase, enjoying generous legroom and available rear-seat entertainment options. Optional extras included features like massaging seats, a panoramic sunroof, adaptive cruise control, and a head-up display. Interior trim options ranged from wood veneers to aluminum accents, allowing buyers to personalize the cabin to their tastes. The standard dashboard configuration featured BMW’s iDrive infotainment system, controlled via a rotary dial and a high-resolution display screen.
Chassis & Braking
The F02 LCI 7 Series utilized a sophisticated chassis design, incorporating aluminum suspension components to reduce weight. The front suspension featured double wishbones, while the rear suspension employed an integral-IV multi-link setup. This configuration provided a comfortable ride and precise handling. The 740Li was equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) and dynamic stability control (DSC) were standard safety features. The steering system was a rack-and-pinion design with electric power assistance, offering precise and responsive steering feel.
Market Reception & Comparison
The 740Li was generally well-received by automotive critics. It was praised for its blend of performance, luxury, and technology. Reviewers noted the engine’s smooth power delivery and the transmission’s seamless shifts. The xDrive system was also lauded for its all-weather capability. Compared to the 730Li, the 740Li offered a significant performance advantage, making it a more appealing choice for drivers who prioritized power. However, the 750Li remained the top choice for those seeking the ultimate in luxury and performance. Fuel economy was respectable for a vehicle of its size and class, although not class-leading.
Legacy
The N55 engine, found in the 740Li, has proven to be a durable and reliable powerplant when properly maintained. Common issues, such as oil leaks and fuel injector problems, are generally manageable with regular servicing. The eight-speed Steptronic transmission has also demonstrated good long-term reliability. Today, the F02 LCI 740Li represents a compelling value proposition in the used luxury car market. It offers a high level of comfort, technology, and performance at a significantly lower price point than newer models. Its reputation for reliability, combined with its luxurious features, makes it a desirable choice for buyers seeking a well-equipped and capable luxury sedan.
