Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (F30 LCI, Facelift 2015) |
| Type (Engine) | 330i (252 Hp) Steptronic |
| Start of production | 2015 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 7.4-7.0 l/100 km (31.8 – 33.6 US mpg) |
| Fuel consumption (extra urban) | 4.9-4.7 l/100 km (48 – 50 US mpg) |
| Fuel consumption (combined) | 5.8-5.5 l/100 km (40.6 – 42.8 US mpg) |
| CO2 emissions | 136-129 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.8 sec |
| Acceleration 0 – 62 mph | 5.8 sec |
| Acceleration 0 – 60 mph | 5.5 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 5.9 kg/Hp |
| Weight-to-torque ratio | 4.3 kg/Nm |
| Power | 252 Hp @ 5200-6500 rpm |
| Torque | 350 Nm @ 1450-4800 rpm (258.15 lb.-ft. @ 1450-4800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B48B20B |
| Engine displacement | 1998 cm3 (121.93 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 82 mm (3.23 in.) |
| Piston Stroke | 94.6 mm (3.72 in.) |
| Compression ratio | 10.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Engine oil capacity | 5 l (5.28 US qt | 4.4 UK qt) |
| Coolant | 7.8 l (8.24 US qt | 6.86 UK qt) |
| Kerb Weight | 1495 kg (3295.91 lbs.) |
| Max. weight | 2055 kg (4530.5 lbs.) |
| Max load | 560 kg (1234.59 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 | 745 kg (1642.44 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4633 mm (182.4 in.) |
| Width | 1811 mm (71.3 in.) |
| Height | 1429 mm (56.26 in.) |
| Wheelbase | 2810 mm (110.63 in.) |
| Front track | 1531 mm (60.28 in.) |
| Rear (Back) track | 1572 mm (61.89 in.) |
| Ride height (ground clearance) | 140 mm (5.51 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11.3 m (37.07 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Drive wheel | Rear wheel drive |
| 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 |
The BMW 3 Series Sedan (F30 LCI), specifically the 330i variant with the Steptronic automatic transmission, represents a significant evolution of BMW’s core sports sedan. Produced from 2015 to 2018, this iteration of the F30 generation benefited from a mid-life cycle refresh (LCI – Lebenszyklusimpuls) bringing styling updates, revised engine options, and enhanced technology. The 330i, positioned as a mid-range offering, aimed to balance performance and efficiency, appealing to a broader customer base than the more focused 320i or the high-performance 340i. It served as a key model in BMW’s North American lineup, where the 3 Series consistently ranked among the best-selling luxury vehicles.
Powertrain & Engine Architecture
The heart of the 330i is the B48B20B 2.0-liter inline-four cylinder engine. This engine is a member of BMW’s modular engine family, utilizing a single-scroll, twin-scroll turbocharger with Valvetronic variable valve timing and direct fuel injection. The B48 engine represents a departure from its predecessor, the N20, with improvements in thermal management and reduced internal friction. The engine produces 252 horsepower at 5200-6500 rpm and 350 Nm (258 lb-ft) of torque between 1450-4800 rpm. Paired with this engine is the ZF 8HP80 eight-speed automatic transmission, marketed by BMW as “Steptronic.” This transmission is known for its smooth shifts, quick response, and efficiency. It features a torque converter lockup clutch for improved fuel economy at cruising speeds. The transmission offers both automatic shifting and manual control via steering wheel-mounted paddles or the gear selector.
Driving Characteristics
The 330i Steptronic delivers a refined and capable driving experience. While not as overtly sporty as the 340i, the 2.0-liter turbo engine provides ample power for everyday driving and spirited acceleration. The Steptronic transmission contributes to a smooth and seamless power delivery, minimizing shift shock. Acceleration from 0-60 mph takes approximately 5.5 seconds. The transmission’s programming prioritizes fuel efficiency, resulting in higher gear selections at lower speeds. Compared to the six-speed manual transmission available on other 3 Series models, the Steptronic offers quicker acceleration due to its closer gear ratios and reduced interruption of torque delivery. However, some enthusiasts find the manual transmission more engaging. The rear-wheel-drive configuration provides a balanced chassis and predictable handling.
Equipment & Trim Levels
The 330i typically came standard with features such as leatherette upholstery, power-adjustable front seats, automatic climate control, a 6.5-inch iDrive infotainment system, and a rearview camera. Optional extras included leather upholstery, a larger iDrive screen with navigation, a premium sound system, adaptive cruise control, lane departure warning, and a head-up display. Trim levels, such as Luxury Line and Sport Line, offered different aesthetic enhancements, including unique interior trim, exterior styling cues, and wheel designs. The Sport Line typically featured more aggressive styling elements and sport-tuned suspension, while the Luxury Line emphasized comfort and refinement.
Chassis & Braking
The F30 3 Series utilizes a MacPherson strut front suspension and a multi-link rear suspension. The 330i typically featured stabilizer bars to reduce body roll during cornering. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. The standard ABS (Anti-lock Braking System) and electronic stability control enhance safety and control. The suspension tuning aimed for a balance between comfort and handling, providing a compliant ride without sacrificing agility.
Market Reception & Comparison
The 330i was generally well-received by automotive critics. It was praised for its refined engine, smooth transmission, and comfortable ride. Compared to the 320i, the 330i offered a significant performance upgrade, while remaining relatively fuel-efficient. Against the 340i, the 330i represented a more affordable option, sacrificing some outright performance for a lower price point. Fuel economy figures averaged around 40 mpg combined, making it a competitive option in its class. Reliability was generally good, although some owners reported minor issues with the cooling system and oil leaks.
Legacy
The F30 330i with the Steptronic transmission has proven to be a reliable and desirable used car. The B48 engine has a generally good reputation for longevity, and the ZF 8HP80 transmission is known for its durability. These vehicles continue to be popular among enthusiasts and everyday drivers alike, offering a blend of performance, luxury, and practicality. The F30 generation as a whole helped solidify the 3 Series’ position as a benchmark in the sports sedan segment, and the 330i remains a compelling option in the used car market today.
