Technical Specifications
| Brand | BMW |
| Model | X3 |
| Generation | X3 (G01 LCI, facelift 2021) |
| Type (Engine) | 30i (245 Hp) Mild Hybrid xDrive Steptronic |
| Start of production | 2021 |
| End of production | 2024 |
| Powertrain Architecture | MHEV (Mild Hybrid Electric Vehicle) |
| Body type | SAV |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 7.6-8.5 l/100 km (30.9 – 27.7 US mpg) |
| CO2 emissions (WLTP) | 173-194 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.6 sec |
| Acceleration 0 – 62 mph | 6.6 sec |
| Acceleration 0 – 60 mph | 6.3 sec |
| Maximum speed | 235 km/h (146.02 mph) |
| Emission standard | Euro 6d |
| Weight-to-power ratio | 7.4 kg/Hp |
| Weight-to-torque ratio | 5.2 kg/Nm |
| Gross battery capacity | 0.4 kWh |
| Battery voltage | 48 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Electric motor power | 11 Hp |
| Electric motor Torque | 25 Nm (18.44 lb.-ft.) |
| Power | 245 Hp @ 5000-6500 rpm |
| Torque | 350 Nm @ 1460-4000 rpm (258.15 lb.-ft. @ 1460-4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B48 |
| 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 | 10.2:1 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Valvetrain | VALVETRONIC, Double VANOS |
| Engine oil capacity | 5.75 l (6.08 US qt | 5.06 UK qt) |
| Kerb Weight | 1810 kg (3990.37 lbs.) |
| Max. weight | 2450 kg (5401.33 lbs.) |
| Max load | 640 kg (1410.96 lbs.) |
| Trunk (boot) space – minimum | 550 l (19.42 cu. ft.) |
| Trunk (boot) space – maximum | 1600 l (56.5 cu. ft.) |
| Fuel tank capacity | 65 l (17.17 US gal | 14.3 UK gal) |
| Length | 4708 mm (185.35 in.) |
| Width | 1891 mm (74.45 in.) |
| Height | 1676 mm (65.98 in.) |
| Wheelbase | 2864 mm (112.76 in.) |
| Front track | 1620 mm (63.78 in.) |
| Rear track | 1636 mm (64.41 in.) |
| Ride height (ground clearance) | 204 mm (8.03 in.) |
| Drag coefficient (Cd) | 0.30 |
| Minimum turning circle | 12 m (39.37 ft.) |
| Front suspension | Spring Strut, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Number of gears | 8 |
| Gearbox type | automatic transmission Steptronic |
The 2021-2024 BMW X3 30i xDrive, equipped with the Steptronic automatic transmission, occupies a middle ground within the G01 X3 lineup. It serves as a compelling alternative to the base 2.0L models and the more performance-oriented M40i. This variant was designed to appeal to buyers seeking a balance of fuel efficiency, comfortable driving dynamics, and the added capability of BMW’s xDrive all-wheel-drive system. The LCI facelift brought updated styling, a more modern interior, and improvements to the infotainment system, further enhancing the X3’s appeal in a competitive segment.
Powertrain & Engine Architecture
At the heart of the X3 30i lies the BMW B48 2.0-liter inline-four cylinder engine. This engine utilizes direct fuel injection and a twin-scroll turbocharger, delivering 245 horsepower and 295 lb-ft of torque. The “i” designation signifies fuel injection. The mild-hybrid system, a 48V setup, adds an electric motor that provides a power boost during acceleration and enables smoother start-stop operation. This system doesn’t allow for electric-only driving but contributes to improved fuel economy. The Steptronic 8-speed automatic transmission is a torque-converter type, known for its smooth shifts and responsiveness. It features adaptive shift programs that adjust to the driver’s style and driving conditions. The engine’s VALVETRONIC variable valve timing and Double VANOS continuously variable camshaft timing further optimize performance and efficiency.
Driving Characteristics
The X3 30i offers a refined and comfortable driving experience. The 8-speed automatic transmission is well-tuned, providing seamless gear changes and contributing to a relaxed cruising experience. While not as overtly sporty as the M40i, the 30i delivers ample power for everyday driving and confident highway passing. The xDrive all-wheel-drive system provides excellent traction in various weather conditions. The mild-hybrid system provides a subtle but noticeable boost during acceleration, enhancing responsiveness. Compared to manual transmission versions (not widely available in the US market for this variant), the automatic prioritizes convenience and ease of use. The gear ratios are optimized for a balance of acceleration and fuel efficiency, with a focus on providing strong mid-range torque.
Equipment & Trim Levels
The X3 30i typically comes standard with features such as BMW’s iDrive infotainment system with a touchscreen display, Apple CarPlay and Android Auto compatibility, a premium audio system, leatherette upholstery, and a suite of advanced driver-assistance systems including lane departure warning and forward collision warning. Optional extras include upgraded leather upholstery, a panoramic sunroof, a head-up display, adaptive cruise control, and a premium Harman Kardon sound system. Trim levels often include base, Premium, and Executive packages, each adding progressively more features and luxury appointments.
Chassis & Braking
The X3 30i utilizes a MacPherson strut front suspension and a multi-link rear suspension, providing a comfortable ride and responsive handling. The suspension is tuned to balance comfort and control, offering a composed ride even on uneven surfaces. The X3 30i is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The electronic stability control system and anti-lock braking system (ABS) work in conjunction to enhance safety and stability. The standard wheel size is typically 18 or 19 inches, with larger wheels available as an option.
Market Reception & Comparison
The X3 30i was generally well-received by automotive critics, who praised its comfortable ride, refined interior, and balanced performance. It was often seen as a strong competitor to other compact luxury SUVs such as the Audi Q5, Mercedes-Benz GLC, and Acura RDX. Compared to the X3 M40i, the 30i offers a more fuel-efficient and affordable option, albeit with less outright performance. The 30i’s fuel economy figures of 7.6-8.5 l/100 km (30.9 – 27.7 US mpg) are competitive within its class. Reliability reports generally indicate good overall reliability, with the B48 engine proving to be a robust and dependable unit.
Legacy
The BMW X3 30i (G01 LCI) represents a well-rounded and practical luxury SUV. The B48 engine, coupled with the Steptronic transmission and xDrive all-wheel drive, provides a compelling combination of performance, efficiency, and capability. On the used car market, these models hold their value relatively well, reflecting their reputation for quality and reliability. The mild-hybrid technology, while not a full hybrid system, demonstrates BMW’s commitment to improving fuel efficiency and reducing emissions. As a result, the X3 30i remains a popular choice for buyers seeking a comfortable, capable, and well-equipped compact luxury SUV.
