The BMW X5 (F15) 25d xDrive Steptronic, produced from 2015 to 2018, represents a significant offering in the mid-size luxury SAV (Sports Activity Vehicle) segment. Positioned as a diesel-powered variant within the broader F15 X5 generation, it aimed to balance fuel efficiency with respectable performance and the all-weather capability associated with BMW’s xDrive all-wheel-drive system. This model served as a key entry point into the X5 range for European and global markets, offering a more economical alternative to the higher-performance gasoline engines while still delivering a premium driving experience. It slotted in below the xDrive30d and xDrive40d models in terms of power output, targeting buyers prioritizing fuel economy and lower running costs.
Technical Specifications
| Brand | BMW |
| Model | X5 |
| Generation | X5 (F15) |
| Type (Engine) | 25d (231 Hp) xDrive Steptronic |
| Start of production | 2015 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SAV |
| Seats | 5-7 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 6.2 l/100 km (37.9 US mpg, 45.6 UK mpg, 16.1 km/l) |
| Fuel consumption (economy) – extra urban | 5.2 – 5.3 l/100 km (45.2 – 44.4 US mpg, 54.3 – 53.3 UK mpg, 19.2 – 18.9 km/l) |
| Fuel consumption (economy) – combined | 5.6 l/100 km (42 US mpg, 50.4 UK mpg, 17.9 km/l) |
| CO2 emissions | 146 – 148 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 7.7 sec |
| Acceleration 0 – 62 mph | 7.7 sec |
| Acceleration 0 – 60 mph | 7.3 sec |
| Maximum speed | 220 km/h (136.7 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 8.8 kg/Hp, 113.2 Hp/tonne |
| Weight-to-torque ratio | 4.1 kg/Nm, 245.1 Nm/tonne |
| Power | 231 Hp @ 4400 rpm |
| Power per litre | 115.8 Hp/l |
| Torque | 500 Nm @ 1500-3000 rpm (368.78 lb.-ft. @ 1500-3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B47D20B |
| Engine displacement | 1995 cm3 (121.74 cu. in.) |
| Number of cylinders | 4 |
| 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 | Twin-power turbo, Intercooler |
| Engine oil capacity | 5 l (5.28 US qt | 4.4 UK qt) |
| Coolant | 7 l (7.4 US qt | 6.16 UK qt) |
| Kerb Weight | 2040 kg (4497.43 lbs.) |
| Max. weight | 2755 kg (6073.74 lbs.) |
| Max load | 715 kg (1576.31 lbs.) |
| Trunk (boot) space – minimum | 650 l (22.95 cu. ft.) |
| Trunk (boot) space – maximum | 1870 l (66.04 cu. ft.) |
| Fuel tank capacity | 85 l (22.45 US gal | 18.7 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 2700 kg (5952.48 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 140 kg (308.65 lbs.) |
| Length | 4886 mm (192.36 in.) |
| Width | 1938 mm (76.3 in.) |
| Height | 1762 mm (69.37 in.) |
| Wheelbase | 2933 mm (115.47 in.) |
| Front track | 1644 mm (64.72 in.) |
| Rear (Back) track | 1650 mm (64.96 in.) |
| Ride height (ground clearance) | 209 mm (8.23 in.) |
| Drag coefficient (Cd) | 0.31 |
| Minimum turning circle (turning diameter) | 12.7 m (41.67 ft.) |
| Approach angle | 25.0° |
| Departure angle | 20.0° |
| Ramp-over (brakeover) angle | 20.0° |
| Wading depth | 500 mm (19.69 in.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 8 gears, automatic transmission Steptronic |
| Front suspension | Double wishbone |
| 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 | 255/55 R18 109 V XL; 255/50 R19; 285/45 R19; 275/40 R20; 315/35 R20 |
| Wheel rims size | 8.5J x 18; 9J x 19; 10J x 19; 10J x 20; 11J x 20 |
INTRODUCTION
The BMW X5 F15 25d xDrive Steptronic, launched in 2015 and continuing through 2018, is a diesel-powered variant of the second-generation X5. Built on the F15 platform, it offered a compelling blend of luxury, practicality, and efficiency. The ‘25d’ designation signifies its engine output, and the ‘xDrive’ indicates BMW’s intelligent all-wheel-drive system. The Steptronic transmission refers to the eight-speed automatic gearbox. This model was primarily aimed at the European market, where diesel engines held a significant share of the premium SUV segment, but was also available in other regions globally. It provided a more accessible entry point into the X5 lineup compared to the more powerful six-cylinder and V8 options.
Powertrain & Engine Architecture
At the heart of the X5 25d lies the BMW B47D20B, a 2.0-liter inline-four cylinder diesel engine. This engine is a member of BMW’s modular engine family, known for its efficiency and refinement. It utilizes a sophisticated common-rail direct fuel injection system, delivering fuel at extremely high pressure for optimized combustion. The B47 features a single twin-scroll turbocharger with variable geometry turbine (VGT) technology, enhancing both low-end torque and high-end power. The engine also incorporates intercooling to further improve efficiency. The eight-speed Steptronic automatic transmission is a crucial component, offering smooth and quick gear changes. This transmission is known for its adaptability, providing both comfort-oriented and sport-focused shift programs. The transmission’s wide gear ratio spread contributes to both fuel efficiency and strong acceleration.
Driving Characteristics
The X5 25d, with its 231 horsepower and 369 lb-ft of torque, delivers a respectable driving experience. While not as overtly sporty as its higher-powered siblings, it provides ample power for everyday driving and highway cruising. Acceleration from 0-60 mph takes around 7.3 seconds. The eight-speed automatic transmission is well-tuned, offering smooth shifts and keeping the engine within its optimal power band. Compared to the X5 xDrive30d (with its six-cylinder diesel), the 25d feels less urgent in acceleration, particularly during overtaking maneuvers. However, the 25d’s lighter weight (due to the smaller engine) contributes to a more agile feel in corners. The xDrive all-wheel-drive system provides excellent traction in all weather conditions, enhancing stability and confidence.
Equipment & Trim Levels
The X5 25d typically came well-equipped, reflecting its position as a premium SUV. Standard features generally included leather upholstery, automatic climate control, a BMW iDrive infotainment system with a central display screen, and a suite of safety features such as ABS, stability control, and multiple airbags. Optional extras were plentiful, allowing buyers to customize their vehicle. These included features like a panoramic sunroof, upgraded audio systems (Harman Kardon), adaptive cruise control, a head-up display, and various driver assistance systems. Trim levels varied by market, but generally offered packages that bundled popular options together. Interior color schemes and wood/aluminum trim options were also available to personalize the cabin.
Chassis & Braking
The F15 X5 utilizes a robust chassis with a double-wishbone front suspension and an independent multi-link rear suspension. This setup provides a comfortable ride while maintaining good handling characteristics. The 25d model typically featured ventilated disc brakes on all four wheels, providing ample stopping power. The suspension tuning was generally geared towards comfort, but offered a good balance between ride quality and handling. Stabilizer bars were fitted front and rear to reduce body roll during cornering. The xDrive all-wheel-drive system intelligently distributes torque between the front and rear axles, optimizing traction and stability based on driving conditions.
Market Reception & Comparison
The X5 25d was generally well-received by automotive critics, who praised its fuel efficiency, comfortable ride, and spacious interior. It was often seen as a sensible choice for buyers prioritizing practicality and running costs over outright performance. Compared to the X5 xDrive30d, the 25d offered lower fuel consumption and a slightly lower price point, but at the expense of some performance. Against competitors like the Audi Q7 and Mercedes-Benz GLE, the X5 25d held its own in terms of refinement, technology, and driving dynamics. Reliability reports suggest that the B47 engine is generally robust, although some owners have reported issues with the diesel particulate filter (DPF) and turbocharger.
Legacy
The BMW X5 F15 25d remains a popular choice in the used car market, particularly in Europe. Its combination of luxury, practicality, and fuel efficiency continues to appeal to buyers. The B47 engine, while having some known issues, is generally considered reliable with proper maintenance. The eight-speed Steptronic transmission has also proven to be durable. As with any used vehicle, potential buyers should carefully inspect the vehicle’s service history and consider a pre-purchase inspection by a qualified mechanic. The X5 25d represents a well-rounded and capable SUV that continues to offer a compelling value proposition in the used car market.
