The BMW 3 Series Sedan (F30) 328i xDrive Steptronic, produced from 2012 to 2015, represented a key offering in BMW’s core model range. Positioned as a mid-range variant within the F30 generation, it combined a potent turbocharged four-cylinder engine with BMW’s xDrive all-wheel-drive system and an eight-speed automatic transmission. This configuration aimed to deliver a balance of performance, efficiency, and all-weather capability, appealing to a broad spectrum of buyers in the premium compact executive car segment. The F30 328i xDrive Steptronic was a significant model for BMW, embodying the brand’s move towards smaller, more efficient engines without sacrificing the driving experience expected of a 3 Series.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (F30) |
| Type (Engine) | 328i (245 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) | 8.7 l/100 km (27 US mpg, 32.5 UK mpg, 11.5 km/l) |
| Fuel consumption (extra urban) | 5.5 l/100 km (42.8 US mpg, 51.4 UK mpg, 18.2 km/l) |
| Fuel consumption (combined) | 6.7 l/100 km (35.1 US mpg, 42.2 UK mpg, 14.9 km/l) |
| CO2 emissions | 157 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 5 |
| Weight-to-power ratio | 6.5 kg/Hp, 153.6 Hp/tonne |
| Weight-to-torque ratio | 4.6 kg/Nm, 219.4 Nm/tonne |
| Power | 245 Hp @ 5000 rpm |
| Power per litre | 122.7 Hp/l |
| Torque | 350 Nm @ 1250-4800 rpm (258.15 lb.-ft. @ 1250-4800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N20B20A |
| Engine displacement | 1997 cm3 (121.86 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 90.1 mm (3.55 in.) |
| Compression ratio | 10:1 |
| 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 | 6.9 l (7.29 US qt | 6.07 UK qt) |
| Kerb Weight | 1595 kg (3516.37 lbs.) |
| Max. weight | 2075 kg (4574.59 lbs.) |
| Max load | 480 kg (1058.22 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%) | 1700 kg (3747.86 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4624 mm (182.05 in.) |
| Width | 1811 mm (71.3 in.) |
| Height | 1434 mm (56.46 in.) |
| Wheelbase | 2810 mm (110.63 in.) |
| Front track | 1543 mm (60.75 in.) |
| Rear (Back) track | 1582 mm (62.28 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 | 8 gears, automatic 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 328i xDrive Steptronic is the N20B20A 2.0-liter inline-four cylinder engine. This engine is a product of BMW’s advancements in forced induction technology, utilizing a twin-scroll turbocharger and direct fuel injection. The direct injection system, operating at pressures up to 200 bar, ensures precise fuel delivery for optimal combustion and efficiency. The N20 engine features Valvetronic, BMW’s variable valve timing and lift system, which allows for stepless control of intake valve timing and lift, further enhancing efficiency and responsiveness. The engine produces 245 horsepower at 5,000 rpm and 258 lb-ft of torque between 1,250 and 4,800 rpm. This broad torque curve, coupled with the eight-speed automatic transmission, provides strong acceleration and effortless cruising. The transmission, known as the Steptronic, offers smooth and quick shifts, and includes features like paddle shifters for manual control.
Driving Characteristics
The 328i xDrive Steptronic delivers a refined and engaging driving experience. The xDrive all-wheel-drive system provides excellent traction in various conditions, enhancing stability and confidence. While not as overtly sporty as the rear-wheel-drive 328i or the higher-performance 335i models, the 328i xDrive offers a comfortable and capable ride. The eight-speed automatic transmission is well-tuned, providing seamless gear changes and contributing to the car’s overall efficiency. Compared to the six-speed manual transmission available on other 328i models, the Steptronic prioritizes ease of use and fuel economy. Acceleration from 0 to 60 mph takes approximately 5.5 seconds, making it a competitive performer in its class. The steering is precise and well-weighted, providing good feedback to the driver.
Equipment & Trim Levels
The 328i xDrive Steptronic typically came standard with a comprehensive list of features, including leatherette upholstery, automatic climate control, a BMW iDrive infotainment system with a 6.5-inch display, and power-adjustable front seats. Optional extras included features like a premium sound system, navigation, heated seats, a sunroof, and various driver assistance systems such as lane departure warning and collision warning. Trim levels could vary slightly depending on the package selected, but generally focused on adding luxury and convenience features. The interior design was modern and functional, with a focus on ergonomics and driver comfort.
Chassis & Braking
The F30 328i xDrive Steptronic utilizes a sophisticated chassis design. The front suspension features independent coil springs and struts, while the rear suspension employs an independent multi-link setup. This configuration provides a good balance of ride comfort and handling precision. The braking system consists of ventilated discs on all four wheels, providing ample stopping power. The car is equipped with ABS (Anti-lock Braking System), Electronic Stability Control, and Dynamic Traction Control, enhancing safety and stability. The xDrive all-wheel-drive system distributes power between the front and rear axles as needed, optimizing traction and handling in various conditions.
Market Reception & Comparison
The 328i xDrive Steptronic was generally well-received by automotive critics. It was praised for its refined driving experience, strong performance, and all-weather capability. Compared to the rear-wheel-drive 328i, the xDrive model offered increased traction and stability, making it a more practical choice for drivers in regions with inclement weather. Fuel economy was also a strong point, with the 328i xDrive achieving around 35 mpg on the highway. Compared to the more powerful 335i models, the 328i xDrive offered a more affordable entry point into the 3 Series range, while still providing a satisfying driving experience.
Legacy
The N20 engine, while generally reliable, has been known to exhibit some issues, including oil leaks and potential for timing chain wear, particularly with deferred maintenance. The eight-speed automatic transmission has proven to be durable and reliable. Today, the F30 328i xDrive Steptronic represents a good value in the used car market. It offers a blend of performance, luxury, and practicality at a relatively affordable price point. Its all-wheel-drive system and well-maintained examples continue to appeal to buyers seeking a capable and comfortable premium sedan.
