The BMW X3 (G01 LCI), specifically the 30i xDrive Steptronic variant, represents a mid-cycle refresh of the third-generation X3, produced from August 2021 through 2024. This model aimed to balance performance and efficiency within the compact luxury SUV segment. Positioned as a mainstream offering within the X3 lineup, the 30i served as a step up from the base 30i models, offering increased horsepower and standard all-wheel drive. It sat below the more performance-oriented M40i and plug-in hybrid variants. The LCI (Life Cycle Impulse) facelift brought updated styling, interior refinements, and revised technology compared to the pre-facelift G01 X3.
Technical Specifications
| Brand | BMW |
| Model | X3 |
| Generation | X3 (G01 LCI, facelift 2021) |
| Type | 30i (248 Hp) xDrive Steptronic |
| Start of production | August, 2021 |
| End of production | 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SAV (Sports Activity Vehicle) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 11.2 l/100 km (21 US mpg, 25.2 UK mpg, 8.9 km/l) |
| Fuel consumption (extra urban) | 8.4 l/100 km (28 US mpg, 33.6 UK mpg, 11.9 km/l) |
| Fuel consumption (combined) | 9.8 l/100 km (24 US mpg, 28.8 UK mpg, 10.2 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.3 sec |
| Acceleration 0 – 62 mph | 6.3 sec |
| Acceleration 0 – 60 mph | 6 sec |
| Maximum speed | 210 km/h (130.49 mph) – Electronically limited |
| Emission standard | SULEV30 |
| Weight-to-power ratio | 7.6 kg/Hp, 131.8 Hp/tonne |
| Weight-to-torque ratio | 5.4 kg/Nm, 186 Nm/tonne |
| Power | 248 Hp @ 5200-6500 rpm |
| Power per litre | 124.1 Hp/l |
| Torque | 350 Nm @ 1450-4800 rpm (258.15 lb.-ft. @ 1450-4800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B46B20O1 |
| 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 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Valvetrain | VALVETRONIC, Double VANOS |
| Engine oil capacity | 5.25 l (5.55 US qt | 4.62 UK qt) |
| Kerb Weight | 1882 kg (4149.1 lbs.) |
| Max. weight | 2430 kg (5357.23 lbs.) |
| Max load | 548 kg (1208.13 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) |
| Permitted trailer load with brakes (12%) | 2000 kg (4409.25 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Length | 4721 mm (185.87 in.) |
| Width | 1891 mm (74.45 in.) |
| Width including mirrors | 2138 mm (84.17 in.) |
| Height | 1676 mm (65.98 in.) |
| Wheelbase | 2864 mm (112.76 in.) |
| Front track | 1621 mm (63.82 in.) |
| Rear track | 1636 mm (64.41 in.) |
| Front overhang | 870 mm (34.25 in.) |
| Rear overhang | 987 mm (38.86 in.) |
| Ride height (ground clearance) | 204 mm (8.03 in.) |
| Drag coefficient (Cd) | 0.32 |
| 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 |
| Type of gearbox | automatic transmission Steptronic |
Powertrain & Engine Architecture
The 2021-2024 BMW X3 30i xDrive Steptronic is powered by the B46B20O1 2.0-liter inline-four cylinder engine. This engine is a member of BMW’s modular B-series engine family, known for its efficiency and performance. It utilizes direct fuel injection, a single twin-scroll turbocharger, and BMW’s VALVETRONIC variable valve timing and Double VANOS variable camshaft timing systems. These technologies work in concert to optimize combustion, improve throttle response, and enhance fuel economy. The engine produces 248 horsepower at 5200-6500 rpm and 295 lb-ft of torque between 1450-4800 rpm. The engine is mated to an 8-speed Steptronic automatic transmission, which provides smooth and quick gear changes. The xDrive all-wheel-drive system is standard, distributing power between the front and rear axles as needed for optimal traction.
Driving Characteristics
The X3 30i with the 8-speed automatic delivers a comfortable and capable driving experience. While not as overtly sporty as the M40i, the 248 hp engine provides ample power for everyday driving and highway passing. The automatic transmission is well-tuned, offering seamless shifts and responsive performance. The xDrive all-wheel-drive system enhances stability and grip, particularly in inclement weather. Compared to the base X3 30i, the increased horsepower of the 30i variant provides a noticeable improvement in acceleration. The 8-speed transmission’s gear ratios are optimized for both fuel efficiency and performance, allowing the engine to operate in its sweet spot more often. The steering is precise and well-weighted, providing a confident feel behind the wheel.
Equipment & Trim Levels
The X3 30i xDrive Steptronic came standard with a comprehensive list of features, including BMW’s iDrive infotainment system with a 10.25-inch touchscreen display, Apple CarPlay and Android Auto compatibility, a premium audio system, and a suite of advanced driver-assistance systems such as lane departure warning, forward collision warning, and automatic emergency braking. Interior upholstery typically consisted of SensaTec leatherette, with available upgrades to genuine leather. Optional extras included a panoramic sunroof, heated front seats, a head-up display, and a premium Harman Kardon audio system. Trim levels offered varying degrees of luxury and technology, with higher trims adding features like larger wheels, upgraded interior trim, and more advanced driver-assistance systems.
Chassis & Braking
The X3 30i features a robust chassis designed for both comfort and handling. The front suspension utilizes MacPherson struts with a transverse stabilizer bar, while the rear suspension employs a multi-link setup, also with a stabilizer bar. This configuration provides a good balance between ride comfort and handling precision. The braking system consists of ventilated discs on all four wheels, providing ample stopping power. Standard safety features include ABS, dynamic stability control, and traction control. The X3’s suspension is tuned to provide a comfortable ride without sacrificing handling agility.
Market Reception & Comparison
The BMW X3 30i xDrive Steptronic was generally well-received by automotive critics. It was praised for its comfortable ride, spacious interior, and refined driving experience. The engine was considered adequate for most drivers, although some reviewers noted that it lacked the outright performance of the M40i. Fuel economy was competitive within the luxury compact SUV segment. Compared to rivals such as the Audi Q5 and Mercedes-Benz GLC, the X3 30i offered a compelling combination of performance, luxury, and technology. The X3’s xDrive all-wheel-drive system was also seen as a significant advantage in regions with harsh weather conditions.
Legacy
The B46 engine family, including the B46B20O1 found in the X3 30i, has proven to be relatively reliable, although some owners have reported issues with the timing chain and cooling system. Regular maintenance, including oil changes and coolant flushes, is crucial for ensuring the longevity of this powertrain. On the used car market, the 2021-2024 X3 30i xDrive Steptronic represents a good value proposition, offering a well-rounded package of luxury, performance, and technology at a competitive price point. Its reputation for reliability and build quality continues to make it a popular choice among buyers in the compact luxury SUV segment.
