The BMW X5 (F15) 35i xDrive Steptronic, produced from 2013 to 2018, represents a significant iteration of BMW’s popular Sports Activity Vehicle (SAV). Positioned as a mid-range offering within the F15 X5 lineup, it bridged the gap between the entry-level xDrive35d diesel and the performance-oriented xDrive50i. This variant was primarily aimed at buyers seeking a balance of performance, luxury, and efficiency in a spacious, all-wheel-drive package. The F15 generation marked a shift towards increased size and a more refined interior compared to its predecessor, the E70 X5, and the 35i model played a crucial role in attracting a wider customer base in North America and global markets.
Technical Specifications
| Brand | BMW |
| Model | X5 |
| Generation | X5 (F15) |
| Type (Engine) | 35i (306 Hp) xDrive Steptronic |
| Start of production | 2013 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SAV |
| Seats | 5-7 |
| Doors | 5 |
| Fuel consumption (urban) | 11.2-11.3 l/100 km (21 – 20.8 US mpg) |
| Fuel consumption (extra urban) | 6.9 l/100 km (34.1 US mpg) |
| Fuel consumption (combined) | 8.5 l/100 km (27.7 US mpg) |
| CO2 emissions | 197-199 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 6.5 sec |
| Acceleration 0 – 62 mph | 6.5 sec |
| Acceleration 0 – 60 mph | 6.2 sec |
| Maximum speed | 235 km/h (146.02 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 6.6 kg/Hp, 150.7 Hp/tonne |
| Weight-to-torque ratio | 5.1 kg/Nm, 197 Nm/tonne |
| Power | 306 Hp @ 5800-6000 rpm |
| Power per litre | 102.7 Hp/l |
| Torque | 400 Nm @ 1200-5000 rpm (295.02 lb.-ft. @ 1200-5000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | N55B30A |
| Engine displacement | 2979 cm3 (181.79 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 89.6 mm (3.53 in.) |
| Compression ratio | 10.2:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Twin-power turbo, Intercooler |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant | 10.3 l (10.88 US qt | 9.06 UK qt) |
| Kerb Weight | 2030 kg (4475.38 lbs.) |
| Max. weight | 2740 kg (6040.67 lbs.) |
| Max load | 710 kg (1565.28 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.) |
| Width including mirrors | 2184 mm (85.98 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.) |
| Front overhang | 890 mm (35.04 in.) |
| Rear overhang | 1063 mm (41.85 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° |
| Departure angle | 20° |
| Ramp-over (brakeover) angle | 20° |
| 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 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; 285/45 R19; 275/40 R20; 315/35 R20 |
| Wheel rims size | 8.5J x 18; 10J x 19; 10J x 20; 11J x 20 |
INTRODUCTION
The BMW X5 F15 35i xDrive Steptronic, manufactured between 2013 and 2018, is a gasoline-powered Sports Activity Vehicle built on the F15 X5 platform. This model occupied a crucial position in BMW’s X5 range, offering a compelling blend of performance and efficiency. It was designed to appeal to a broad audience, particularly in markets where larger SUVs were gaining popularity. The ‘35i’ designation indicates the engine’s displacement class and its single turbocharger configuration, differentiating it from the higher-performance 50i models and the diesel-powered 35d variants.
Powertrain & Engine Architecture
At the heart of the X5 35i lies the N55B30A, a 3.0-liter inline-six cylinder engine. This engine is a direct-injected, twin-power turbocharged unit, known for its responsiveness and relatively smooth power delivery. The N55 engine utilizes a single twin-scroll turbocharger, which minimizes turbo lag and enhances low-end torque. Direct injection ensures precise fuel delivery, optimizing combustion efficiency and power output. The engine produces 306 horsepower at 5800-6000 rpm and 400 Nm (295 lb-ft) of torque between 1200 and 5000 rpm. Paired with the engine is BMW’s 8-speed Steptronic automatic transmission. This transmission offers both fully automatic operation and manual gear selection via steering wheel-mounted paddles or the gear selector. The transmission’s wide gear ratio spread contributes to both fuel efficiency and strong acceleration.
Driving Characteristics
The X5 35i, with its 306 hp and 8-speed automatic, delivers a respectable 0-60 mph time of around 6.2 seconds. While not as overtly sporty as the X5 50i, the 35i provides ample power for everyday driving and highway passing. The automatic transmission is generally smooth and responsive, although some drivers may find it slightly hesitant during quick downshifts. The xDrive all-wheel-drive system provides excellent traction in various weather conditions, enhancing stability and control. Compared to the manual transmission options available on some X5 models, the automatic prioritizes ease of use and comfort over outright driver engagement. The 35i’s power delivery is linear and predictable, making it a user-friendly SUV for a wide range of drivers.
Equipment & Trim Levels
The X5 35i xDrive Steptronic came standard with a comprehensive list of features, including leather upholstery, power-adjustable front seats with memory function, a premium sound system, and a navigation system. Standard safety features included ABS, stability control, traction control, and a suite of airbags. Optional extras included features like a panoramic sunroof, adaptive cruise control, a head-up display, and upgraded interior trim options. Trim levels varied depending on the market, but generally included options for enhanced luxury and convenience features. The interior design emphasized a driver-focused layout with high-quality materials and a modern aesthetic.
Chassis & Braking
The F15 X5 features a robust chassis with a double-wishbone front suspension and a multi-link rear suspension. This suspension setup provides a comfortable ride while maintaining good handling characteristics. The X5 35i typically came equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The electronic stability control system and ABS further enhance braking performance and safety. The suspension tuning was generally geared towards comfort, but the X5 35i still offered a reasonably engaging driving experience.
Market Reception & Comparison
The X5 35i was generally well-received by automotive critics, who praised its blend of performance, luxury, and practicality. It was often seen as a more sensible alternative to the more expensive and fuel-hungry X5 50i. Compared to the X5 35d diesel, the 35i offered a different driving experience, with a more responsive engine and a slightly sportier feel. However, the diesel model typically delivered better fuel economy. The X5 35i competed with other luxury SUVs such as the Acura MDX, Audi Q7, and Mercedes-Benz GLE-Class.
Legacy
The BMW X5 F15 35i xDrive Steptronic has proven to be a relatively reliable vehicle, with the N55 engine generally considered robust. Common maintenance items include oil changes, brake pad replacements, and occasional cooling system maintenance. The 8-speed automatic transmission has also proven to be durable. On the used car market, the X5 35i represents a good value proposition, offering a luxurious and capable SUV at a more affordable price point than newer models. Its blend of performance, comfort, and all-wheel-drive capability continues to make it a popular choice among buyers seeking a versatile and well-rounded SUV.
