The BMW 3 Series Sedan (F30 LCI), specifically the 330d xDrive Steptronic variant, represents a significant iteration of BMW’s iconic sports sedan, produced from 2015 to 2018. This facelift, known internally as LCI (Life Cycle Impulse), brought updated styling, enhanced technology, and refined engine options to the already successful F30 generation. The 330d, positioned as a premium offering within the 3 Series lineup, combined a potent diesel engine with BMW’s xDrive all-wheel-drive system and the Steptronic eight-speed automatic transmission, targeting drivers seeking a blend of performance, efficiency, and all-weather capability. It served as a key model in the European market, where diesel engines remained highly popular, and gained a niche following in other regions.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (F30 LCI, Facelift 2015) |
| Type (Engine) | 330d (258 Hp) xDrive Steptronic |
| Start of production | 2015 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 6.1-6.0 l/100 km (38.6 – 39.2 US mpg) |
| Fuel consumption (extra urban) | 4.8 l/100 km (49 US mpg) |
| Fuel consumption (combined) | 5.3-5.2 l/100 km (44.4 – 45.2 US mpg) |
| CO2 emissions | 139-137 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 5.3 sec |
| Acceleration 0 – 62 mph | 5.3 sec |
| Acceleration 0 – 60 mph | 5 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 6.3 kg/Hp |
| Weight-to-torque ratio | 2.9 kg/Nm |
| Power | 258 Hp @ 4000 rpm |
| Torque | 560 Nm @ 1500-3000 rpm (413.03 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N57D30A |
| 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 | 7.2 l (7.61 US qt | 6.34 UK qt) |
| Kerb Weight | 1615 kg (3560.47 lbs.) |
| Max. weight | 2165 kg (4773.01 lbs.) |
| Max load | 550 kg (1212.54 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Fuel tank capacity | 57 l (15.06 US gal | 12.54 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) | 0.29 |
| 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 | 8 gears, automatic transmission Steptronic |
| 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 330d xDrive Steptronic is the N57D30A, a 3.0-liter inline-six diesel engine. This engine is a product of BMW’s extensive diesel technology development, featuring a common-rail direct fuel injection system operating at extremely high pressures. The N57 engine family is renowned for its robust construction and efficiency. The 330d variant utilizes a twin-turbocharger setup – a smaller turbo for quick response at low engine speeds and a larger turbo for sustained power at higher RPMs. An intercooler further enhances performance by cooling the compressed intake air. The engine produces 258 horsepower at 4,000 rpm and a substantial 560 Nm (413 lb-ft) of torque between 1,500 and 3,000 rpm. This broad torque curve is a hallmark of diesel engines and contributes to the 330d’s effortless acceleration. The engine is paired with BMW’s eight-speed Steptronic automatic transmission, known for its smooth and quick shifts. This transmission is electronically controlled and adapts to driving style, offering both automatic and manual shift modes.
Driving Characteristics
The 330d xDrive Steptronic delivers a refined and capable driving experience. The abundant torque from the diesel engine provides strong acceleration in virtually any gear, making overtaking maneuvers easy and confident. The xDrive all-wheel-drive system enhances traction, particularly in adverse weather conditions, providing a secure and planted feel. While not as overtly sporty as some of the gasoline-powered 3 Series variants, the 330d offers a compelling balance of performance and comfort. The eight-speed automatic transmission contributes to relaxed cruising, with well-chosen gear ratios that keep the engine operating efficiently. Compared to the 320d, the 330d offers a noticeable performance upgrade, while the higher-output 340i provides a more exhilarating, but less fuel-efficient, experience.
Equipment & Trim Levels
The 330d xDrive Steptronic typically came well-equipped as a premium trim level. Standard features often included leather upholstery, automatic climate control, a BMW iDrive infotainment system with a central display screen, and a suite of driver-assistance features such as parking sensors and rain-sensing wipers. Optional extras could include a navigation system, a premium sound system, heated seats, and a head-up display. The LCI facelift brought updated interior trim options and improved materials, enhancing the overall sense of luxury.
Chassis & Braking
The F30 3 Series features a sophisticated chassis design with a MacPherson strut front suspension and a multi-link rear suspension. The 330d xDrive Steptronic benefits from a slightly stiffer suspension setup compared to lower-powered variants to manage the increased weight and power. The braking system consists of ventilated disc brakes on all four wheels, providing ample stopping power. The xDrive all-wheel-drive system distributes torque between the front and rear axles as needed, optimizing traction and stability.
Market Reception & Comparison
The 330d xDrive Steptronic was generally well-received by automotive critics. It was praised for its strong performance, excellent fuel economy, and refined driving experience. Compared to the gasoline-powered 3 Series models, the 330d offered significantly better fuel efficiency, making it an attractive option for drivers covering long distances. However, some critics noted that the diesel engine lacked the responsiveness and sound of its gasoline counterparts. In terms of reliability, the N57 engine family has proven to be relatively robust, although preventative maintenance, particularly regarding the diesel particulate filter (DPF), is crucial.
Legacy
The BMW 330d xDrive Steptronic (F30 LCI) remains a popular choice in the used car market. Its combination of performance, efficiency, and all-weather capability continues to appeal to buyers. The N57 engine, while requiring diligent maintenance, is known for its longevity. The F30 generation 3 Series, as a whole, is considered a well-rounded and enjoyable sports sedan, and the 330d variant represents a particularly compelling option for those seeking a refined and capable diesel-powered vehicle.
