The BMW 3 Series Gran Turismo (F34) LCI, specifically the 320d variant with the Steptronic automatic transmission, represents a unique offering within the broader 3 Series lineup. Introduced with the Life Cycle Impulse (LCI) facelift in 2016 and continuing through 2020, this model aimed to blend the practicality of a hatchback with the driving dynamics expected of a BMW. Positioned as a mid-range option, the 320d Steptronic Gran Turismo provided a balance between fuel efficiency, performance, and comfort, targeting buyers seeking a versatile and refined grand tourer. It was built on the F34 platform, a derivative of the F30 3 Series, but with a longer wheelbase and a distinctive sloping roofline.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Gran Turismo (F34 LCI, Facelift 2016) |
| Type (Engine) | 320d (190 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) | 5.4-5.0 l/100 km (43.6 – 47 US mpg) |
| Fuel consumption (extra urban) | 4.1-3.9 l/100 km (57.4 – 60.3 US mpg) |
| Fuel consumption (combined) | 4.6-4.3 l/100 km (51.1 – 54.7 US mpg) |
| CO2 emissions | 120-113 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.7 sec |
| Acceleration 0 – 62 mph | 7.7 sec |
| Acceleration 0 – 60 mph | 7.3 sec |
| Maximum speed | 226 km/h (140.43 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.4 kg/Hp |
| Weight-to-torque ratio | 4 kg/Nm |
| 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 |
| 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 | 1595 kg (3516.37 lbs.) |
| Max. weight | 2165 kg (4773.01 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 | 57 l (15.06 US gal | 12.54 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Permitted trailer load with brakes (12%) | 1600 kg (3527.4 lbs.) |
| Permitted trailer load without brakes | 745 kg (1642.44 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) | 0.28 |
| Minimum turning circle (turning diameter) | 11.8 m (38.71 ft.) |
| Drivetrain Architecture | 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 320d Gran Turismo is the BMW B47D20A 2.0-liter inline-four diesel engine. This engine is a member of the modular BMW engine family, known for its efficiency and refinement. It utilizes a second-generation common rail direct injection system operating at pressures up to 2,000 bar, ensuring precise fuel delivery and optimized combustion. The B47 features a single twin-scroll turbocharger with variable geometry turbine (VGT) technology, enhancing responsiveness and minimizing turbo lag. The engine also incorporates an intercooler to further cool the intake air, increasing power output. The Steptronic 8-speed automatic transmission is a crucial component, offering smooth and efficient gear changes. It features a torque converter and allows for both automatic and manual shifting via steering wheel-mounted paddles or the gear selector. The transmission is programmed for both fuel economy and performance, adapting to driving style and conditions.
Driving Characteristics
The 320d Steptronic Gran Turismo delivers a comfortable and composed driving experience. While not overtly sporty, the 190 horsepower and 400 Nm (295 lb-ft) of torque provide adequate performance for everyday driving and long-distance cruising. Acceleration from 0-60 mph takes approximately 7.3 seconds. The Steptronic transmission contributes to a relaxed driving style, with well-spaced gear ratios that keep the engine within its optimal power band. Compared to the 320i (gasoline) or the more powerful 330d variants, the 320d prioritizes fuel efficiency and low-end torque. The manual transmission versions of the 320d offered a more engaging driving experience, but the Steptronic provides greater convenience, especially in urban traffic.
Equipment & Trim Levels
The 320d Gran Turismo 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 (later upgraded to 8.8-inch), power-adjustable front seats, and a leather-wrapped steering wheel. Upholstery options ranged from cloth to leatherette and full leather. Optional extras included navigation, a premium sound system, adaptive cruise control, a panoramic sunroof, and various driver assistance systems. The Gran Turismo also offered a spacious interior and a large, versatile cargo area, making it a practical choice for families.
Chassis & Braking
The F34 Gran Turismo utilizes a sophisticated chassis design. The front suspension features a double wishbone setup, while the rear employs an independent multi-link suspension. This configuration provides a good balance between ride comfort and handling precision. The 320d typically came equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock Braking System (ABS), Dynamic Stability Control (DSC), and Brake Assist were standard safety features. The suspension tuning was generally geared towards comfort, with a focus on absorbing bumps and providing a stable ride.
Market Reception & Comparison
The 3 Series Gran Turismo, and specifically the 320d Steptronic variant, received mixed reviews. Critics praised its spacious interior, comfortable ride, and fuel efficiency. However, some found its styling somewhat awkward and its driving dynamics less engaging than the standard 3 Series sedan or wagon. Compared to the 320i, the 320d offered significantly better fuel economy and more low-end torque, making it a better choice for long-distance driving. The 330d provided more power and a sportier driving experience, but at a higher price point. The 320d Steptronic represented a sweet spot for buyers prioritizing practicality and efficiency.
Legacy
The B47 engine, found in the 320d Gran Turismo, has proven to be a relatively reliable powertrain. While some early B47 engines experienced issues with timing chain wear, these were largely addressed in later revisions. The Steptronic 8-speed automatic transmission is also known for its durability. On the used car market, the 320d Gran Turismo offers a compelling value proposition, providing a comfortable, well-equipped, and fuel-efficient grand tourer at a reasonable price. Its spacious interior and versatile cargo area continue to appeal to buyers seeking a practical and refined vehicle.
