The BMW 3 Series Touring (F31 LCI), specifically the 320i Steptronic variant produced from 2015 to 2019, represents a compelling blend of practicality and performance within the premium compact estate (wagon) segment. This facelifted version of the F31 generation, part of the broader F30 3 Series lineup, aimed to refine the existing formula with updated styling, improved efficiency, and enhanced technology. The 320i Steptronic occupied a mid-range position in the Touring lineup, offering a balance between affordability and driving enjoyment, appealing to buyers prioritizing comfort and convenience alongside BMW’s renowned handling characteristics. It served as a key model in the European market, where the estate body style enjoys significant popularity, and saw moderate sales in North America where wagons are less common.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Touring (F31 LCI, Facelift 2015) |
| Type (Engine) | 320i (184 Hp) Steptronic |
| Start of production | 2015 |
| End of production | 2019 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 7.8-7.3 l/100 km (30.2 – 32.2 US mpg, 36.2 – 38.7 UK mpg, 12.8 – 13.7 km/l) |
| Fuel consumption (extra urban) | 4.8-4.5 l/100 km (49 – 52.3 US mpg, 58.9 – 62.8 UK mpg, 20.8 – 22.2 km/l) |
| Fuel consumption (combined) | 5.9-5.5 l/100 km (39.9 – 42.8 US mpg, 47.9 – 51.4 UK mpg, 16.9 – 18.2 km/l) |
| CO2 emissions | 138-129 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 7.5 sec |
| Acceleration 0 – 62 mph | 7.5 sec |
| Acceleration 0 – 60 mph | 7.1 sec |
| Maximum speed | 228 km/h (141.67 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.3 kg/Hp, 121.1 Hp/tonne |
| Weight-to-torque ratio | 5.6 kg/Nm, 177.6 Nm/tonne |
| Power | 184 Hp @ 5000-6500 rpm |
| Power per litre | 92.1 Hp/l |
| Torque | 270 Nm @ 1350-4600 rpm (199.14 lb.-ft. @ 1350-4600 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B48B20A |
| 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 | 11:1 |
| 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 | 1520 kg (3351.03 lbs.) |
| Max. weight | 2115 kg (4662.78 lbs.) |
| Max load | 595 kg (1311.75 lbs.) |
| Trunk (boot) space – minimum | 495 l (17.48 cu. ft.) |
| Trunk (boot) space – maximum | 1500 l (52.97 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 | 695 kg (1532.21 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 | 1543 mm (60.75 in.) |
| Rear (Back) track | 1583 mm (62.32 in.) |
| Ride height (ground clearance) | 140 mm (5.51 in.) |
| Drag coefficient (Cd) | 0.30 |
| 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 | 205/60 R16 92W |
| Wheel rims size | 7.0J x 16 |
INTRODUCTION
The F31 320i Touring with the Steptronic transmission, launched in 2015 as part of the Life Cycle Impulse (LCI) facelift, built upon the success of the F31 generation. The LCI brought revised front and rear styling, updated interior trim, and most importantly, a new generation of engines. This variant was positioned as a practical and efficient option within the 3 Series Touring range, appealing to families and individuals needing the versatility of a wagon without sacrificing the BMW driving experience. It slotted below the more powerful 328i and 330i models, offering a more accessible entry point into the premium estate market. The F31 platform itself was highly regarded for its balance of handling, comfort, and interior space.
Powertrain & Engine Architecture
At the heart of the 320i Touring Steptronic lies the BMW B48B20A 2.0-liter inline-four cylinder engine. This engine is a member of BMW’s modular engine family, featuring a single twin-scroll turbocharger, direct fuel injection, and variable valve timing (VANOS) and valve lift (Valvetronic) technology. The B48 engine replaced the older N20 engine, offering improvements in efficiency and refinement. Peak power of 184 horsepower is achieved between 5000 and 6500 rpm, while a maximum torque of 270 Nm (199 lb-ft) is available from a low 1350 rpm, providing strong mid-range pull. The engine’s aluminum block and head contribute to its relatively lightweight construction. The “Steptronic” transmission refers to BMW’s 8-speed automatic gearbox, known for its smooth and responsive shifts. This transmission features a torque converter and allows for both fully automatic operation and manual gear selection via steering wheel-mounted paddles or the gear selector lever.
Driving Characteristics
The 320i Touring Steptronic delivers a comfortable and refined driving experience. While not as overtly sporty as its higher-powered siblings, the 184 hp engine provides adequate performance for everyday driving and longer journeys. The 8-speed automatic transmission is well-matched to the engine, offering seamless gear changes and contributing to good fuel economy. The gear ratios are tuned for both acceleration and efficiency, with taller gearing in higher gears for relaxed cruising. Compared to a manual transmission version, the Steptronic offers greater convenience, particularly in urban traffic. However, some driving enthusiasts may find the automatic transmission slightly less engaging than a manual. The rear-wheel-drive configuration provides a balanced feel, and the chassis offers a good compromise between comfort and handling.
Equipment & Trim Levels
The 320i Touring Steptronic typically came equipped with a generous level of standard features. These included automatic climate control, a BMW iDrive infotainment system with a central display screen, power windows and mirrors, and a leather-wrapped steering wheel. Upholstery was typically cloth, although leather options were available. Optional extras included navigation, a premium sound system, parking sensors, heated seats, and a panoramic sunroof. Trim levels varied depending on the market, but generally offered packages that bundled together popular options. The LCI facelift also brought updated interior trim options and improved material quality.
Chassis & Braking
The F31 Touring utilizes a MacPherson strut front suspension and a multi-link rear suspension, providing a comfortable ride and good handling characteristics. The suspension is tuned to balance comfort and control, offering a relatively compliant ride over uneven surfaces. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock Braking System (ABS) and Electronic Stability Control (ESC) are standard features, enhancing safety. The 320i Touring typically featured a smaller stabilizer bar compared to the more powerful models, contributing to a slightly softer ride.
Market Reception & Comparison
The 320i Touring Steptronic was generally well-received by automotive critics. It was praised for its comfortable ride, refined engine, and practical estate body style. Critics noted that while it wasn’t the most exciting car to drive, it offered a good balance of performance, efficiency, and practicality. Compared to the 328i and 330i Touring models, the 320i offered a more affordable entry point into the 3 Series Touring range, but at the expense of outright performance. Fuel economy was a strong point, with the 320i achieving respectable figures in both urban and highway driving. Reliability was generally good, although some owners reported minor issues with the electronic systems.
Legacy
The B48 engine family has proven to be a reliable and durable powerplant, and the 320i Touring Steptronic remains a popular choice in the used car market. Its combination of practicality, comfort, and efficiency makes it a compelling option for buyers seeking a premium estate car. While not a collector’s item, well-maintained examples hold their value reasonably well. The 8-speed Steptronic transmission has also proven to be reliable, with many units exceeding high mileage without major issues. The F31 generation 3 Series Touring, and the 320i Steptronic in particular, represents a high point in BMW’s estate car development, offering a compelling blend of driving enjoyment and everyday usability.
