The BMW 3 Series Sedan (F30 LCI), specifically the 325d variant with the Steptronic automatic transmission, represents a significant iteration of BMW’s long-running and highly successful compact executive car. Produced from 2016 to 2018, this model falls within the LCI (Life Cycle Impulse) facelift of the F30 generation, bringing updated styling, improved technology, and refined engine options. The 325d Steptronic occupied a middle ground in the 3 Series lineup, offering a balance between performance, fuel efficiency, and comfort, appealing to buyers seeking a premium driving experience without the higher price tag of the more powerful models.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Sedan (F30 LCI, Facelift 2015) |
| Type (Engine) | 325d (224 Hp) Steptronic |
| Start of production | 2016 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 5.0-5.4 l/100 km (47 – 43.6 US mpg, 56.5 – 52.3 UK mpg, 20 – 18.5 km/l) |
| Fuel consumption (extra urban) | 4.1-4.3 l/100 km (57.4 – 54.7 US mpg, 68.9 – 65.7 UK mpg, 24.4 – 23.3 km/l) |
| Fuel consumption (combined) | 4.4-4.7 l/100 km (53.5 – 50 US mpg, 64.2 – 60.1 UK mpg, 22.7 – 21.3 km/l) |
| CO2 emissions | 116-124 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 6.1 sec |
| Acceleration 0 – 62 mph | 6.1 sec |
| Acceleration 0 – 60 mph | 5.8 sec |
| Maximum speed | 245 km/h (152.24 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 6.7 kg/Hp, 148.8 Hp/tonne |
| Weight-to-torque ratio | 3.3 kg/Nm, 299 Nm/tonne |
| Power | 224 Hp @ 4400 rpm |
| Power per litre | 112.3 Hp/l |
| Torque | 450 Nm @ 1500-3000 rpm (331.9 lb.-ft. @ 1500-3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B47D20B |
| Engine displacement | 1995 cm3 (121.74 cu. in.) |
| Number of cylinders | 4 |
| 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 | 5 l (5.28 US qt | 4.4 UK qt) |
| Coolant | 7 l (7.4 US qt | 6.16 UK qt) |
| Kerb Weight | 1505 kg (3317.96 lbs.) |
| Max. weight | 2065 kg (4552.55 lbs.) |
| Max load | 560 kg (1234.59 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 | 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) | 0.28 |
| Minimum turning circle (turning diameter) | 11.3 m (37.07 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| 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; 225/45 R18; 255/40 R18; 225/40 R19; 255/35 R19 |
| Wheel rims size | 7.5J x 17; 8J x 18; 8.5J x 18; 8J x 19; 8.5J x 19 |
INTRODUCTION
The F30 325d Steptronic was introduced as part of the LCI update in 2015, building upon the success of the F30 3 Series launched in 2012. This facelift brought revised front and rear styling, upgraded interior materials, and most importantly, a new generation of engines. The 325d, powered by the B47D20B engine, was positioned as a compelling alternative to the entry-level 320d, offering a significant power increase and a more refined driving experience. It catered to drivers who desired strong performance and good fuel economy in a practical, everyday package. The Steptronic transmission, BMW’s 8-speed automatic, further enhanced the car’s usability and comfort.
Powertrain & Engine Architecture
At the heart of the 325d Steptronic lies the B47D20B, a 2.0-liter inline-four diesel engine. This engine is a member of BMW’s modular engine family, known for its efficiency and performance. The B47 features a common-rail direct injection system operating at pressures up to 2,000 bar, ensuring precise fuel delivery and optimized combustion. A twin-scroll turbocharger with variable geometry turbine (VGT) technology provides a broad torque curve and minimizes turbo lag. The engine also incorporates advanced technologies like a cooled exhaust gas recirculation (EGR) system and a particulate filter to meet stringent Euro 6 emission standards. The 8-speed Steptronic automatic transmission is a torque-converter type, offering smooth and quick gear changes. It features adaptive shift programs that adjust to the driver’s style and driving conditions. Manual shift control is also available via steering wheel-mounted paddles or the gear selector.
Driving Characteristics
The 325d Steptronic delivers a refined and capable driving experience. The 450 Nm (331.9 lb-ft) of torque available from 1500-3000 rpm provides strong acceleration in everyday driving situations. The 0-60 mph sprint takes approximately 5.8 seconds, making it a genuinely quick car. While not as sporty as the higher-powered 330i or M3, the 325d offers ample power for overtaking and highway cruising. The Steptronic transmission contributes to the smooth driving experience, seamlessly shifting gears and providing responsive performance. Compared to the 320d, the 325d feels noticeably more powerful and relaxed, especially when fully loaded or driving uphill. The gear ratios are well-chosen, providing a good balance between acceleration and fuel efficiency. The 325d doesn’t have the same raw excitement as a manual transmission equipped model, but the convenience and smoothness of the Steptronic are appreciated by many drivers.
Equipment & Trim Levels
The 325d Steptronic typically came well-equipped, even in base trim. Standard features included automatic climate control, a BMW iDrive infotainment system with a 6.5-inch display, Bluetooth connectivity, and power-adjustable front seats. Higher trim levels, such as Sport Line, Luxury Line, and M Sport, added features like sport seats, upgraded interior trim, larger display screens, and exterior styling enhancements. Optional extras included a navigation system, a Harman Kardon sound system, adaptive cruise control, lane departure warning, and a head-up display. Interior upholstery options ranged from standard cloth to premium leather. The dashboard layout was typical of the F30 generation, with a driver-focused design and intuitive controls.
Chassis & Braking
The F30 3 Series features a sophisticated chassis design. The front suspension utilizes independent coil springs and struts, while the rear suspension employs a multi-link setup. This configuration provides a good balance between ride comfort and handling precision. The 325d Steptronic typically came equipped with ventilated disc brakes on all four wheels, providing ample stopping power. ABS (Anti-lock Braking System) and electronic stability control (ESC) were standard safety features. The steering system is a rack-and-pinion type with electric power assistance, offering precise and responsive steering feel. The suspension tuning was generally comfort-oriented, but the M Sport suspension option provided a firmer ride and improved handling.
Market Reception & Comparison
The 325d Steptronic was generally well-received by automotive critics. It was praised for its strong performance, fuel efficiency, and refined driving experience. Compared to the 320d, the 325d offered a significant power upgrade without a substantial price increase. It also provided better fuel economy than the higher-powered 330i. However, some critics noted that the 325d lacked the sporty character of the 330i or M3. In terms of reliability, the B47 engine has proven to be generally robust, although some issues with the timing chain have been reported. Overall, the 325d Steptronic offered a compelling package for buyers seeking a premium compact executive car.
Legacy
The F30 325d Steptronic remains a popular choice in the used car market. Its combination of performance, fuel efficiency, and reliability makes it an attractive option for buyers seeking a well-rounded and practical vehicle. The B47 engine is known for its longevity, and the Steptronic transmission is generally reliable. However, potential buyers should be aware of the potential timing chain issues and ensure that the car has been properly maintained. The F30 3 Series, including the 325d Steptronic, has cemented its reputation as a benchmark in the compact executive car segment, offering a compelling blend of driving pleasure and everyday usability.
