The BMW 3 Series Gran Turismo (F34) LCI, specifically the 320i Steptronic model produced from 2016 to 2020, represents a unique offering within the broader 3 Series lineup. Positioned as a more spacious and practical alternative to the standard 3 Series sedan and wagon, the Gran Turismo aimed to blend the driving dynamics expected of a BMW with the increased versatility of a hatchback-like design. The “LCI” designation refers to the Life Cycle Impulse, BMW’s term for a significant facelift, bringing updated styling and technology to the F34 platform. This 320i variant, equipped with the 184 horsepower turbocharged four-cylinder engine and an 8-speed automatic transmission, served as the entry point into the Gran Turismo range for many buyers, prioritizing fuel efficiency and comfortable cruising over outright performance.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Gran Turismo (F34 LCI, Facelift 2016) |
| Type (Engine) | 320i (184 Hp) Steptronic |
| Start of production | 2016 |
| End of production | 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Grand Tourer |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 7.3-6.9 l/100 km (32.2 – 34.1 US mpg) |
| Fuel consumption (extra urban) | 5.4-5.1 l/100 km (43.6 – 46.1 US mpg) |
| Fuel consumption (combined) | 6.1-5.8 l/100 km (38.6 – 40.6 US mpg) |
| CO2 emissions | 139-132 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 8.1 sec |
| Acceleration 0 – 62 mph | 8.1 sec |
| Acceleration 0 – 60 mph | 7.7 sec |
| Maximum speed | 229 km/h (142.29 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.7 kg/Hp, 115 Hp/tonne |
| Weight-to-torque ratio | 5.9 kg/Nm, 168.8 Nm/tonne |
| Power | 184 Hp @ 5000 rpm |
| 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 | 1600 kg (3527.4 lbs.) |
| Max. weight | 2170 kg (4784.03 lbs.) |
| Max load | 570 kg (1256.63 lbs.) |
| Trunk (boot) space – minimum | 520 l (18.36 cu. ft.) |
| Trunk (boot) space – maximum | 1600 l (56.5 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%) | 1500 kg (3306.93 lbs.) |
| Permitted trailer load without brakes | 695 kg (1532.21 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4824 mm (189.92 in.) |
| Width | 1828 mm (71.97 in.) |
| Height | 1508 mm (59.37 in.) |
| Wheelbase | 2920 mm (114.96 in.) |
| Front track | 1541 mm (60.67 in.) |
| Rear (Back) track | 1586 mm (62.44 in.) |
| Ride height (ground clearance) | 165 mm (6.5 in.) |
| Drag coefficient (Cd) | 0.29 |
| Minimum turning circle (turning diameter) | 11.8 m (38.71 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 | Double wishbone |
| 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 | 225/55 R17 97V |
| Wheel rims size | 8.0J x 17 |
Powertrain & Engine Architecture
The heart of the 320i Gran Turismo LCI is BMW’s B48B20A 2.0-liter turbocharged inline-four engine. This engine is a member of BMW’s modular engine family, known for its efficiency and responsiveness. The B48 utilizes direct fuel injection, operating at a compression ratio of 11:1, and is equipped with a twin-scroll turbocharger with an intercooler. This configuration allows for a broad torque curve, delivering 270 Nm (199 lb-ft) of torque from as low as 1350 rpm and sustaining it through 4600 rpm. The engine produces its peak power of 184 hp at 5000 rpm. Paired with this engine is BMW’s 8-speed Steptronic automatic transmission. This transmission is known for its smooth shifts and intelligent programming, adapting to driving style and conditions. It features steering wheel-mounted paddle shifters for manual control, though the transmission primarily operates in automatic mode.
Driving Characteristics
The 320i Steptronic Gran Turismo offers a comfortable and refined driving experience. While not as sporty as the higher-powered 330i or M Sport variants, the 184 hp engine provides adequate performance for everyday driving and highway cruising. The 8-speed automatic transmission contributes to smooth acceleration and efficient fuel economy. The gear ratios are tuned for a balance between responsiveness and fuel efficiency, with taller gears for relaxed highway driving. Compared to a manual transmission equipped 320i, the Steptronic version prioritizes ease of use and convenience over driver engagement. Acceleration from 0 to 60 mph takes approximately 7.7 seconds, making it competitive within its class. The Gran Turismo’s longer wheelbase and softer suspension tuning, compared to the standard 3 Series, further enhance ride comfort.
Equipment & Trim Levels
The 320i Gran Turismo LCI typically came standard with features such as automatic climate control, power-adjustable front seats, a BMW iDrive infotainment system with a 6.5-inch display screen, and a suite of safety features including ABS, stability control, and multiple airbags. Interior upholstery was typically cloth, with leatherette or full leather options available as upgrades. Optional extras included a larger iDrive display screen, navigation system, premium sound system, panoramic sunroof, and various driver-assistance systems like lane departure warning and adaptive cruise control. Trim levels varied by market, but generally offered packages that bundled popular options together.
Chassis & Braking
The F34 Gran Turismo utilizes a double wishbone front suspension and an independent multi-link rear suspension, providing a comfortable and controlled ride. The suspension is tuned to prioritize comfort over outright sportiness. Braking duties are handled by ventilated disc brakes on all four wheels. The Gran Turismo’s weight, around 1600 kg (3527 lbs), is relatively high for a vehicle in this class, which impacts braking performance and handling agility. The standard steering system is an electric power-assisted rack and pinion system, offering precise and responsive steering feel.
Market Reception & Comparison
The 3 Series Gran Turismo, and specifically the 320i Steptronic variant, received mixed reviews. Critics praised its spacious interior, comfortable ride, and practical hatchback design. However, some found the styling to be somewhat awkward and the driving experience less engaging than the standard 3 Series. Compared to the 328i/330i models, the 320i offered a more affordable entry point into the Gran Turismo range, but at the expense of performance. The 320d (diesel) variants were often favored in Europe for their superior fuel economy and torque. In the US market, the 320i Steptronic appealed to buyers seeking a comfortable and practical luxury vehicle with a prestigious badge.
Legacy
The BMW 3 Series Gran Turismo (F34) was discontinued in 2020, replaced by other models in BMW’s expanding lineup. The B48 engine, however, continues to be a mainstay in BMW’s current range, known for its reliability and efficiency. On the used car market, the 320i Steptronic Gran Turismo represents a relatively affordable option for buyers seeking a spacious and comfortable BMW. While not a performance icon, the B48 engine has proven to be durable, and with regular maintenance, these vehicles can provide years of reliable service. Common issues reported include occasional oil leaks and problems with the cooling system, but these are generally not widespread or catastrophic.
