The BMW 3 Series Touring (F31 LCI), specifically the 320d variant with the Steptronic automatic transmission, represents a significant iteration of BMW’s popular compact executive estate car. Produced from 2015 to 2019, this facelifted version of the F31 generation brought updated styling, improved efficiency, and enhanced technology to the 3 Series lineup. Positioned as a mid-range offering, the 320d Steptronic aimed to balance fuel economy, practicality, and a comfortable driving experience, appealing to families and drivers seeking a versatile premium vehicle. It falls within the broader F30/F31 3 Series platform, sharing its core architecture with sedan and Gran Turismo body styles.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Touring (F31 LCI, Facelift 2015) |
| Type (Engine) | 320d (190 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 (economy) – urban (NEDC) | 4.9-5.4 l/100 km (48 – 43.6 US mpg, 57.6 – 52.3 UK mpg, 20.4 – 18.5 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 3.7-4 l/100 km (63.6 – 58.8 US mpg, 76.3 – 70.6 UK mpg, 27 – 25 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 4.1-4.5 l/100 km (57.4 – 52.3 US mpg, 68.9 – 62.8 UK mpg, 24.4 – 22.2 km/l) |
| CO2 emissions (NEDC) | 109-119 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.4 sec |
| Acceleration 0 – 62 mph | 7.4 sec |
| Acceleration 0 – 60 mph | 7 sec |
| Maximum speed | 226 km/h (140.43 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.1 kg/Hp, 124.2 Hp/tonne |
| Weight-to-torque ratio | 3.8 kg/Nm, 261.4 Nm/tonne |
| Power | 190 Hp @ 4000 rpm |
| Torque | 400 Nm @ 1750-2500 rpm (295.02 lb.-ft. @ 1750-2500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B47D20A |
| 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 |
| Valvetrain | DOHC |
| 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 | 1530 kg (3373.07 lbs.) |
| Max. weight | 2125 kg (4684.82 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 | 57 l (15.06 US gal | 12.54 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (8%) | 1800 kg (3968.32 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.) |
| Width including mirrors | 2031 mm (79.96 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.) |
| Front overhang | 779 mm (30.67 in.) |
| Rear overhang | 1044 mm (41.1 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 |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| Front suspension | Spring Strut, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| 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 | Front wheel tires: 205/60 R16; 225/55 R16; 225/50 R17; 225/45 R18; 225/40 R19Rear wheel tires: 205/60 R16; 225/55 R16; 225/50 R17; 225/45 R18; 255/40 R18; 255/35 R19 |
| Wheel rims size | Front wheel rims: 7J x 16; 7.5J x 16; 7.5J x 17; 8J x 18; 8J x 19Rear wheel rims: 7J x 16; 7.5J x 16; 7.5J x 17; 8J x 18; 8.5J x 18; 8.5J x 19 |
INTRODUCTION
The F31 320d Touring with the Steptronic transmission is a five-door, five-seat station wagon that formed a crucial part of BMW’s 3 Series range from 2015 to 2019. This model benefited from the Life Cycle Impulse (LCI) facelift, bringing revised exterior styling, upgraded interior materials, and improvements to the engine and transmission for enhanced efficiency and refinement. The 320d, powered by the B47 engine, was a popular choice for buyers prioritizing fuel economy and practicality without sacrificing the BMW driving experience. It served as a stepping stone into the 3 Series range, offering a more accessible price point than the higher-performance 330d or petrol-powered variants.
Powertrain & Engine Architecture
At the heart of the 320d Touring is the BMW B47D20A 2.0-liter inline-four diesel engine. This engine is a member of BMW’s modular engine family, known for its compact design and advanced technology. The B47 utilizes a common-rail direct injection system operating at pressures up to 2,000 bar, ensuring precise fuel delivery and efficient combustion. A single twin-scroll turbocharger with variable geometry turbine (VGT) technology provides a broad torque curve and responsive performance. The engine also features a diesel particulate filter (DPF) to minimize emissions, complying with Euro 6 standards. The Steptronic 8-speed 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. The transmission is designed for efficiency and comfort, with close gear ratios optimizing fuel economy and performance.
Driving Characteristics
The 320d Steptronic Touring delivers a balanced driving experience. While not as overtly sporty as some of its petrol-powered siblings, it provides ample power for everyday driving and long-distance cruising. The 400 Nm of torque, available from 1750-2500 rpm, provides strong acceleration in most situations. The Steptronic transmission contributes to a relaxed driving experience, particularly in urban environments. The eight forward gears keep engine speeds low, improving fuel economy and reducing noise. Compared to the 6-speed manual transmission offered on other 320d models, the Steptronic prioritizes comfort and ease of use over outright driver engagement. Acceleration from 0-60 mph takes approximately 7 seconds, making it a competitive performer in its class. The rear-wheel-drive configuration provides a balanced chassis and predictable handling.
Equipment & Trim Levels
The 320d Touring typically came equipped with a generous level of standard equipment. This included features like automatic climate control, a BMW iDrive infotainment system with a 6.5-inch display (later upgraded to 8.8 inches), power windows, and power mirrors. Upholstery was typically cloth, but leather options were available. Common optional extras included a sunroof, navigation system, upgraded sound system, parking sensors, and adaptive headlights. Trim levels varied depending on the market, but generally included Sport Line, Luxury Line, and M Sport packages, each offering unique styling cues and additional features. The Sport Line added more aggressive exterior styling and sport seats, while the Luxury Line focused on a more refined and elegant appearance. The M Sport package offered the most aggressive styling and performance-oriented features.
Chassis & Braking
The F31 320d Touring utilizes a MacPherson strut front suspension and a multi-link rear suspension. This setup provides a good balance of ride comfort and handling precision. The suspension is tuned to prioritize comfort, but still offers a secure and controlled feel in corners. Brakes are ventilated discs all around, providing ample stopping power. Anti-lock Braking System (ABS) and Electronic Stability Control (ESC) are standard safety features. The 320d Touring typically featured a smaller stabilizer bar compared to higher-performance models, contributing to a more comfortable ride. Rear brakes were typically solid discs, while higher-spec models could be equipped with ventilated rear discs.
Market Reception & Comparison
The 320d Touring was generally well-received by automotive critics. It was praised for its fuel efficiency, practicality, and comfortable ride. Critics noted that while it wasn’t the most exciting car to drive, it offered a compelling blend of attributes for buyers seeking a versatile and refined estate car. Compared to the 330d, the 320d offered lower running costs but less outright performance. The petrol-powered 320i provided a more engaging driving experience but lacked the fuel economy of the diesel. The 320d’s fuel economy figures of around 52-57 mpg combined made it an attractive option for high-mileage drivers. Reliability was generally good, although some owners reported issues with the DPF and turbocharger.
Legacy
The B47 engine, found in the 320d Touring, has proven to be a relatively reliable powertrain, although preventative maintenance, particularly regarding the DPF, is crucial. The Steptronic 8-speed automatic transmission is also known for its durability. On the used car market, the F31 320d Touring remains a popular choice, offering a good balance of price, practicality, and running costs. However, potential buyers should be aware of the potential for DPF issues and ensure that the car has been properly maintained. The F31 generation 3 Series Touring, and the 320d variant in particular, cemented BMW’s reputation for building premium, versatile, and efficient estate cars.
