The BMW 3 Series Touring (G21 LCI), specifically the 330i xDrive Steptronic variant, represents the facelifted version of the G21 generation, launched in July 2022. This model combines the practicality of a station wagon (estate) body style with a potent 2.0-liter turbocharged four-cylinder engine and BMW’s eight-speed Steptronic automatic transmission, coupled with xDrive all-wheel drive. Positioned as a mid-range offering within the 3 Series Touring lineup, it caters to buyers seeking a balance of performance, luxury, and everyday usability. The LCI (Life Cycle Impulse) brought styling updates, enhanced technology, and refined engine calibrations to the already successful G21 platform.
Technical Specifications
| Brand | BMW |
| Model | 3 Series |
| Generation | 3 Series Touring (G21 LCI, facelift 2022) |
| Type (Engine) | 330i (245 Hp) xDrive Steptronic |
| Start of production | July, 2022 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 7.3-8.1 l/100 km (32.2 – 29 US mpg, 38.7 – 34.9 UK mpg, 13.7 – 12.3 km/l) |
| CO2 emissions (WLTP) | 164-182 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6 sec |
| Acceleration 0 – 62 mph | 6 sec |
| Acceleration 0 – 60 mph | 5.7 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d |
| Weight-to-power ratio | 6.8 kg/Hp, 147.6 Hp/tonne |
| Weight-to-torque ratio | 4.2 kg/Nm, 241 Nm/tonne |
| Power | 245 Hp @ 4500-6500 rpm |
| Power per litre | 122.6 Hp/l |
| Torque | 400 Nm @ 1600-4000 rpm (295.02 lb.-ft. @ 1600-4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B48B20B |
| 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 |
| Valvetrain | VALVETRONIC |
| Engine oil capacity | 5.25 l (5.55 US qt | 4.62 UK qt) |
| Kerb Weight | 1660 kg (3659.67 lbs.) |
| Max. weight | 2255 kg (4971.42 lbs.) |
| Max load | 595 kg (1311.75 lbs.) |
| Trunk (boot) space – minimum | 500 l (17.66 cu. ft.) |
| Trunk (boot) space – maximum | 1510 l (53.33 cu. ft.) |
| Fuel tank capacity | 59 l (15.59 US gal | 12.98 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 | 4713 mm (185.55 in.) |
| Width | 1827 mm (71.93 in.) |
| Height | 1145 mm (45.08 in.) |
| Wheelbase | 2851 mm (112.24 in.) |
| Front track | 1573 mm (61.93 in.) |
| Rear (Back) track | 1567 mm (61.69 in.) |
| Ride height (ground clearance) | 135 mm (5.31 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle (turning diameter) | 12 m (39.37 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| 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 | 225/50 R17 |
| Wheel rims size | 7.5J x 17 |
Powertrain & Engine Architecture
At the heart of the 330i xDrive Steptronic lies the BMW B48B20B engine, a 2.0-liter inline-four cylinder powerplant. This engine utilizes direct fuel injection and a twin-scroll turbocharger with an intercooler to deliver 245 horsepower at 4500-6500 rpm and 400 Nm (295 lb-ft) of torque between 1600-4000 rpm. BMW’s VALVETRONIC technology, a variable valve timing and lift system, optimizes engine efficiency and responsiveness. The engine is longitudinally mounted, driving all four wheels through BMW’s xDrive all-wheel-drive system. The transmission is an eight-speed Steptronic automatic, known for its smooth shifts and adaptive learning capabilities. This transmission is programmed to prioritize fuel efficiency while still providing quick downshifts for spirited driving.
Driving Characteristics
The 330i xDrive Steptronic offers a refined and capable driving experience. The automatic transmission provides seamless gear changes, contributing to a comfortable ride. While not as overtly sporty as the manual transmission or the M340i variants, the 330i delivers ample power for everyday driving and confident highway passing. The xDrive system provides excellent traction in various weather conditions, enhancing stability and control. The eight-speed transmission’s gear ratios are tuned for a balance between acceleration and fuel economy. Compared to the 320i, the 330i offers a noticeable performance upgrade, while remaining more accessible and fuel-efficient than the higher-performance M340i.
Equipment & Trim Levels
The 330i xDrive Steptronic typically comes well-equipped as standard. Features include BMW’s iDrive infotainment system with a touchscreen display, navigation, Apple CarPlay and Android Auto compatibility, automatic climate control, and a suite of driver-assistance systems like lane departure warning and forward collision warning. Interior upholstery is typically a combination of Sensatec (synthetic leather) and cloth, with optional upgrades to genuine leather available. Common optional extras include a panoramic sunroof, premium sound system, heated seats, and adaptive suspension. The LCI facelift brought updated interior trim options and enhanced digital displays.
Chassis & Braking
The G21 3 Series Touring utilizes a McPherson strut front suspension and a multi-link rear suspension, providing a comfortable yet controlled ride. The suspension is tuned to balance handling and comfort, making it suitable for both daily commuting and longer journeys. The 330i xDrive Steptronic is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. ABS (Anti-lock Braking System) and electronic stability control are standard safety features. The steering is an electric power-assisted rack and pinion system, offering precise and responsive steering feel.
Market Reception & Comparison
The 330i xDrive Steptronic was generally well-received by automotive critics. It was praised for its refined engine, comfortable ride, and practical station wagon body style. Fuel economy was considered competitive for its class, achieving between 7.3 and 8.1 liters per 100 kilometers (29-32 US mpg). Compared to the 320i, the 330i offered a significant performance boost, justifying the price premium for many buyers. Against the M340i, the 330i provided a more balanced combination of performance and efficiency, appealing to those who didn’t require the ultimate in driving thrills. Reliability reports have been generally positive, with the B48 engine proving to be a robust and dependable unit.
Legacy
The BMW 3 Series Touring (G21 LCI) 330i xDrive Steptronic represents a compelling offering in the premium compact executive wagon segment. The B48 engine, coupled with the eight-speed Steptronic transmission and xDrive all-wheel drive, provides a reliable and enjoyable driving experience. On the used car market, these models are sought after for their blend of practicality, performance, and luxury. With proper maintenance, the B48 engine is expected to provide long-term reliability, making the 330i xDrive Steptronic a sensible and rewarding choice for discerning buyers.
