The BMW X3 (F25) 30d xDrive Steptronic, produced from 2011 to 2014, represents a significant iteration of BMW’s compact luxury SUV. Positioned as a mid-range offering within the F25 X3 lineup, it catered to buyers seeking a balance between performance, fuel efficiency, and practicality. This variant utilized a potent 3.0-liter inline-six diesel engine paired with an eight-speed automatic transmission and BMW’s xDrive all-wheel-drive system. The F25 generation X3 aimed to broaden the vehicle’s appeal, offering a more spacious interior and improved driving dynamics compared to its predecessor, the E83.
Technical Specifications
| Brand | BMW |
| Model | X3 |
| Generation | X3 (F25) |
| Type (Engine) | 30d (258 Hp) xDrive Steptronic |
| Start of production | 2011 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 6.8 l/100 km (34.6 US mpg, 41.5 UK mpg, 14.7 km/l) |
| Fuel consumption (extra urban) | 5.6 l/100 km (42 US mpg, 50.4 UK mpg, 17.9 km/l) |
| Fuel consumption (combined) | 6 l/100 km (39.2 US mpg, 47.1 UK mpg, 16.7 km/l) |
| CO2 emissions | 159 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 6.2 sec |
| Acceleration 0 – 62 mph | 6.2 sec |
| Acceleration 0 – 60 mph | 5.9 sec |
| Maximum speed | 230 km/h (142.92 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 7 kg/Hp, 143.3 Hp/tonne |
| Weight-to-torque ratio | 3.2 kg/Nm, 311.1 Nm/tonne |
| Power | 258 Hp @ 4000 rpm |
| Torque | 560 Nm @ 1500-3000 rpm (413.03 lb.-ft. @ 1500-3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N57D30A |
| Engine displacement | 2993 cm3 (182.64 cu. in.) |
| Number of cylinders | 6 |
| 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 | Turbocharger, Intercooler |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant | 10 l (10.57 US qt | 8.8 UK qt) |
| Kerb Weight | 1800 kg (3968.32 lbs.) |
| Max. weight | 2370 kg (5224.96 lbs.) |
| Max load | 570 kg (1256.63 lbs.) |
| Trunk (boot) space – minimum | 550 l (19.42 cu. ft.) |
| Trunk (boot) space – maximum | 1600 l (56.5 cu. ft.) |
| Fuel tank capacity | 67 l (17.7 US gal | 14.74 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 | 4648 mm (182.99 in.) |
| Width | 1881 mm (74.06 in.) |
| Height | 1661 mm (65.39 in.) |
| Wheelbase | 2810 mm (110.63 in.) |
| Front track | 1616 mm (63.62 in.) |
| Rear (Back) track | 1632 mm (64.25 in.) |
| Ride height (ground clearance) | 212 mm (8.35 in.) |
| Drag coefficient (Cd) | 0.34 |
| Minimum turning circle (turning diameter) | 11.9 m (39.04 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
Powertrain & Engine Architecture
The heart of the X3 30d is the N57D30A, a 3.0-liter inline-six diesel engine. This engine is a member of BMW’s highly regarded N57 family, known for its robust construction and refined power delivery. The N57D30A utilizes a common-rail direct fuel injection system, delivering fuel at extremely high pressures for optimized combustion. A single variable geometry turbocharger (VGT) with intercooling provides forced induction, contributing to the engine’s substantial torque output. The engine also features four valves per cylinder and a sophisticated engine management system. The eight-speed Steptronic automatic transmission, a ZF-sourced unit, is characterized by smooth shifts and a wide gear ratio spread, enhancing both fuel economy and performance. This transmission allows the engine to operate within its optimal power band more frequently.
Driving Characteristics
The X3 30d xDrive Steptronic delivers a compelling driving experience. The 560 Nm (413 lb-ft) of torque, available from a low 1500 rpm, provides strong acceleration and effortless overtaking capability. While not as overtly sporty as some of its gasoline-powered siblings, the 30d offers a refined and confident feel. The eight-speed automatic transmission contributes to relaxed cruising at highway speeds, while also providing quick downshifts when needed. The xDrive all-wheel-drive system ensures excellent traction in various weather conditions. Compared to the higher-output X3 35d, the 30d offers a slightly less aggressive driving experience, but it compensates with improved fuel economy. The automatic transmission, while convenient, doesn’t offer the same level of driver engagement as the available six-speed manual.
Equipment & Trim Levels
The X3 30d xDrive Steptronic typically came well-equipped as standard. Features included automatic climate control, power-adjustable front seats, a multi-function steering wheel, and a BMW Professional radio system. Upholstery was typically a combination of cloth and leatherette, with full leather options available. Optional extras included a navigation system, a panoramic sunroof, heated seats, and a premium sound system. Trim levels varied slightly by market, but generally, the 30d sat in the middle of the X3 range, offering a good balance of features and price.
Chassis & Braking
The F25 X3 features a MacPherson strut front suspension and a multi-link rear suspension. This setup provides a comfortable ride while maintaining good handling characteristics. The xDrive all-wheel-drive system utilizes a multi-plate clutch to distribute torque between the front and rear axles as needed. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) and electronic stability control (ESC) are standard safety features.
Market Reception & Comparison
The X3 30d was generally well-received by automotive critics. It was praised for its refined engine, comfortable ride, and practical interior. Fuel economy was a significant selling point, particularly in Europe where diesel engines are more popular. Compared to the X3 28i (gasoline), the 30d offered superior torque and fuel efficiency, albeit at a slightly higher price point. The X3 35d provided more outright performance, but the 30d represented a more sensible and economical choice for many buyers. Reliability was generally good, although some owners reported issues with the diesel particulate filter (DPF) system.
Legacy
The N57D30A engine has proven to be a durable and reliable powerplant, and well-maintained examples of the X3 30d continue to be sought after in the used car market. While the diesel particulate filter can require occasional maintenance or replacement, the engine itself is generally robust. The F25 X3 30d remains a compelling option for buyers seeking a practical, fuel-efficient, and comfortable luxury SUV. Its blend of performance, refinement, and all-weather capability ensures its continued relevance in the used car landscape.
