The BMW 3 Series Sedan (F30 LCI), specifically the 340i xDrive variant produced from 2015 to 2018, represents a significant evolution of BMW’s iconic sports sedan. The “LCI” designation stands for Lebenszyklusimpuls, German for “lifecycle impulse,” denoting a comprehensive facelift of the F30 generation. Positioned as a high-performance offering within the 3 Series lineup, the 340i xDrive bridged the gap between the more accessible 320i/330i models and the track-focused M3. It was designed to appeal to drivers seeking a blend of luxury, performance, and all-weather capability, primarily targeting the North American and European markets.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (F30 LCI, Facelift 2015) |
| Type (Engine) | 340i (326 Hp) xDrive |
| Start of production | 2015 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 10.7-10.4 l/100 km (22 – 22.6 US mpg, 26.4 – 27.2 UK mpg, 9.3 – 9.6 km/l) |
| Fuel consumption (extra urban) | 6.3-6.1 l/100 km (37.3 – 38.6 US mpg, 44.8 – 46.3 UK mpg, 15.9 – 16.4 km/l) |
| Fuel consumption (combined) | 7.9-7.7 l/100 km (29.8 – 30.5 US mpg, 35.8 – 36.7 UK mpg, 12.7 – 13 km/l) |
| CO2 emissions | 185-179 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5 sec |
| Acceleration 0 – 62 mph | 5 sec |
| Acceleration 0 – 60 mph | 4.8 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 4.9 kg/Hp, 203.8 Hp/tonne |
| Weight-to-torque ratio | 3.6 kg/Nm, 281.3 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 | B58B30A |
| 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 | 7.8 l (8.24 US qt | 6.86 UK qt) |
| Kerb Weight | 1600 kg (3527.4 lbs.) |
| Max. weight | 2150 kg (4739.94 lbs.) |
| Max load | 550 kg (1212.54 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 1800 kg (3968.32 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4633 mm (182.4 in.) |
| Width | 1811 mm (71.3 in.) |
| Height | 1434 mm (56.46 in.) |
| Wheelbase | 2810 mm (110.63 in.) |
| Front track | 1531 mm (60.28 in.) |
| Rear (Back) track | 1570 mm (61.81 in.) |
| Ride height (ground clearance) | 145 mm (5.71 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle (turning diameter) | 11.7 m (38.39 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Independent coil spring |
| 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 | 225/50 R17 94W |
| Wheel rims size | 7.5J x 17 |
Powertrain & Engine Architecture
The heart of the 340i xDrive is the B58B30A 3.0-liter inline-six engine. This engine is a member of BMW’s modular engine family, known for its smooth power delivery and efficiency. The B58 features a single twin-scroll turbocharger, direct fuel injection, and Double-VANOS variable valve timing for both intake and exhaust camshafts. This combination allows for a broad torque curve and a responsive throttle. The engine produces 326 horsepower at 5,500-6,500 rpm and 331 lb-ft of torque from a remarkably low 1,380-5,000 rpm. The xDrive system is BMW’s all-wheel-drive technology, utilizing a multi-plate clutch to distribute power between the front and rear axles as needed. The standard transmission was a six-speed manual, though an eight-speed automatic transmission (ZF 8HP) was a popular option, offering quicker shifts and improved fuel economy.
Driving Characteristics
The 340i xDrive delivers a compelling driving experience. The combination of the potent inline-six and the xDrive all-wheel-drive system results in impressive acceleration – 0 to 60 mph in around 4.8 seconds. The engine’s broad torque band makes it feel effortless in everyday driving, with ample power for overtaking and merging. Compared to the 320i/330i models, the 340i offers a significantly more engaging and rewarding experience. While the 320i/330i focused on fuel efficiency, the 340i prioritized performance. Compared to the higher-performance M3, the 340i xDrive offered a more comfortable ride and a less aggressive character, making it a more practical daily driver. The xDrive system provides enhanced traction, particularly in inclement weather, without sacrificing the BMW’s characteristic rear-wheel-drive handling balance.
Equipment & Trim Levels
The 340i xDrive came standard with a generous array of features, including leather upholstery, power-adjustable front seats, a premium sound system, and BMW’s iDrive infotainment system with a 6.5-inch display screen. Optional extras included a larger 8.8-inch iDrive display, navigation, a head-up display, adaptive cruise control, and a Harman Kardon surround sound system. Interior trim options ranged from aluminum to wood veneers, allowing buyers to personalize the cabin. Exterior styling cues included subtle badging and available M Sport packages, which added more aggressive bodywork and sport-tuned suspension components.
Chassis & Braking
The F30 3 Series features a sophisticated chassis design. The front suspension utilizes MacPherson struts, while the rear employs a multi-link setup. The 340i xDrive typically came equipped with larger brakes than the base models, featuring ventilated discs at all four corners. ABS, dynamic stability control (DSC), and traction control were standard safety features. The xDrive system’s intelligent torque distribution further enhances stability and handling. The suspension tuning was geared towards providing a balance between comfort and sporty handling, offering a more compliant ride than the M3 while still delivering precise steering and minimal body roll.
Market Reception & Comparison
The 340i xDrive was generally well-received by automotive critics. Reviewers praised its powerful engine, refined handling, and comfortable interior. It was often lauded as a sweet spot in the 3 Series lineup, offering a compelling blend of performance and practicality. Fuel economy was considered respectable for a car of its performance caliber, averaging around 30 mpg combined. Reliability was generally good, although some owners reported minor issues with the cooling system and oil leaks. Compared to competitors like the Audi S4 and Mercedes-AMG C43, the 340i xDrive was often seen as offering a more engaging driving experience and a more balanced overall package.
Legacy
The B58 engine has proven to be remarkably durable and reliable, earning a strong reputation among BMW enthusiasts. The 340i xDrive remains a popular choice in the used car market, offering a compelling value proposition for those seeking a high-performance sports sedan. Its combination of power, handling, and all-weather capability makes it a versatile and enjoyable vehicle to drive. The F30 3 Series, and particularly the 340i xDrive, is considered by many to be a high point in BMW’s modern sedan history, representing a successful blend of tradition and innovation.
