The BMW X4 (G02 LCI), specifically the 30i variant with the 245 hp mild-hybrid powertrain and xDrive all-wheel drive paired with the Steptronic 8-speed automatic transmission, represents a significant update to the second generation of BMW’s compact luxury Sports Activity Coupe (SAC). Introduced with the 2021 facelift, this model aimed to refine the X4’s blend of sporty styling, practical space, and modern technology. It occupies a mid-range position within the X4 lineup, offering a balance between performance and efficiency, appealing to buyers seeking a premium crossover experience without the higher price tag of the M40i or the complexity of the plug-in hybrid options.
Technical Specifications
| Brand | BMW |
| Model | X4 |
| Generation | X4 (G02 LCI, facelift 2021) |
| Type (Engine) | 30i (245 Hp) Mild Hybrid xDrive Steptronic |
| Start of production | 2021 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SAC |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 7.5-8.5 l/100 km (31.4 – 27.7 US mpg, 37.7 – 33.2 UK mpg, 13.3 – 11.8 km/l) |
| CO2 emissions (WLTP) | 171-192 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, 135 Hp/tonne |
| Weight-to-torque ratio | 5.2 kg/Nm, 192.8 Nm/tonne |
| Electric motor power | 11 Hp |
| Electric motor location | Front, Longitudinal |
| Power | 245 Hp @ 5000-6500 rpm |
| Power per litre | 122.6 Hp/l |
| Torque | 350 Nm @ 1560-4800 rpm (258.15 lb.-ft. @ 1560-4800 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 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Valvetrain | VALVETRONIC, Double VANOS |
| Engine oil capacity | 5.75 l (6.08 US qt | 5.06 UK qt) |
| Kerb Weight | 1815 kg (4001.39 lbs.) |
| Max. weight | 2400 kg (5291.09 lbs.) |
| Max load | 585 kg (1289.7 lbs.) |
| Trunk (boot) space – minimum | 525 l (18.54 cu. ft.) |
| Trunk (boot) space – maximum | 1430 l (50.5 cu. ft.) |
| Fuel tank capacity | 65 l (17.17 US gal | 14.3 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 2400 kg (5291.09 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 100 kg (220.46 lbs.) |
| Length | 4751 mm (187.05 in.) |
| Width | 1918 mm (75.51 in.) |
| Height | 1621 mm (63.82 in.) |
| Wheelbase | 2864 mm (112.76 in.) |
| Front track | 1620 mm (63.78 in.) |
| Rear (Back) track | 1666 mm (65.59 in.) |
| Ride height (ground clearance) | 204 mm (8.03 in.) |
| Drag coefficient (Cd) | 0.29-0.35 |
| Minimum turning circle (turning diameter) | 12.1 m (39.7 ft.) |
| Approach angle | 25° |
| Departure angle | 22.2° |
| Ramp-over (brakeover) angle | 20° |
| Wading depth | 500 mm (19.69 in.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) and the electric motor permanently drive the four wheels of the car with the ability to work only in mixed mode. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| Front suspension | Spring Strut |
| 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 | 225/60 R18 |
| Wheel rims size | 7J x 18 |
Powertrain & Engine Architecture
At the heart of the X4 30i lies the BMW B48 2.0-liter inline-four cylinder engine. This engine benefits from a mild-hybrid 48V system, adding a small electric motor that provides a boost during acceleration and enables smoother start-stop operation. The B48 utilizes direct fuel injection, a twin-scroll turbocharger, and BMW’s VALVETRONIC variable valve timing and Double VANOS variable camshaft timing systems. These technologies work in concert to deliver a broad torque curve and improved fuel efficiency. The engine produces 245 horsepower at 5,000-6,500 rpm and 295 lb-ft of torque between 1,560 and 4,800 rpm. The Steptronic 8-speed automatic transmission is standard, offering smooth and quick shifts. The transmission is programmed for both efficiency and responsiveness, adapting to the driver’s style.
Driving Characteristics
The X4 30i delivers a comfortable and composed driving experience. While not as overtly sporty as the M40i, the 245 hp engine provides ample power for everyday driving and highway passing. The mild-hybrid system contributes to a noticeable improvement in low-end responsiveness. The Steptronic transmission is well-tuned, offering seamless gear changes and contributing to a refined ride. The xDrive all-wheel-drive system provides excellent traction in various weather conditions. Compared to the higher-output M40i, the 30i prioritizes fuel economy and comfort over outright performance. The manual transmission option available on other X4 models is not offered with the 30i, focusing solely on the convenience of the automatic.
Equipment & Trim Levels
The X4 30i typically comes well-equipped as standard. Common features include BMW’s iDrive infotainment system with a touchscreen display, navigation, Apple CarPlay and Android Auto compatibility, a premium sound system, leatherette upholstery, power-adjustable front seats, and a panoramic sunroof. Optional extras include upgraded leather upholstery, heated and ventilated front seats, a head-up display, adaptive cruise control, and a variety of driver-assistance systems. Trim levels often build upon the standard equipment, offering aesthetic enhancements and additional features.
Chassis & Braking
The X4 30i utilizes a robust chassis with a MacPherson strut front suspension and a multi-link rear suspension. This setup provides a good balance between ride comfort and handling precision. The xDrive all-wheel-drive system distributes power between the front and rear axles as needed, optimizing traction and stability. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. The electronic stability control system and ABS further enhance safety.
Market Reception & Comparison
The X4 30i was generally well-received by automotive critics. It was praised for its comfortable ride, refined interior, and efficient powertrain. Some reviewers noted that the 2.0-liter engine, while capable, lacked the punch of the larger engines offered in other X4 variants. Compared to competitors like the Porsche Macan and Audi Q5, the X4 30i offered a compelling combination of style, performance, and value. Fuel economy figures of 7.5-8.5 l/100 km (27.7-31.4 mpg) were competitive within its segment.
Legacy
The BMW B48 engine has proven to be a reliable and durable powerplant, and the 8-speed Steptronic transmission is also known for its longevity. The X4 30i, as a result, holds its value reasonably well in the used car market. While some maintenance costs associated with BMW ownership can be higher than those of mainstream brands, the X4 30i offers a premium ownership experience with a good balance of performance, efficiency, and reliability. Its blend of sporty styling and practical functionality continues to appeal to buyers seeking a versatile luxury crossover.
