The BMW X6 (E71) 30d xDrive Steptronic, produced from 2008 to 2010, represents BMW’s initial foray into the luxury Sports Activity Coupe (SAC) segment. This variant, powered by a 3.0-liter inline-six diesel engine, occupied a middle ground within the E71 X6 lineup, positioned between the entry-level xDrive35i gasoline model and the higher-performance xDrive50i. The 30d was primarily aimed at European markets where diesel engines were – and continue to be – highly favored for their fuel efficiency and torque characteristics. It offered a blend of performance, luxury, and practicality, packaged in a visually striking and somewhat controversial design.
Technical Specifications
| Brand | BMW |
| Model | X6 |
| Generation | X6 (E71) |
| Type (Engine) | 30d (235 Hp) xDrive Steptronic |
| Start of production | 2008 |
| End of production | 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 4 |
| Doors | 5 |
| Fuel consumption (urban) | 10.4 l/100 km (22.6 US mpg, 27.2 UK mpg, 9.6 km/l) |
| Fuel consumption (extra urban) | 7 l/100 km (33.6 US mpg, 40.4 UK mpg, 14.3 km/l) |
| Fuel consumption (combined) | 8.2 l/100 km (28.7 US mpg, 34.4 UK mpg, 12.2 km/l) |
| CO2 emissions | 217 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8 sec |
| Acceleration 0 – 62 mph | 8 sec |
| Acceleration 0 – 60 mph | 7.6 sec |
| Maximum speed | 210 km/h (130.49 mph) |
| Emission standard | Euro 4 |
| Weight-to-power ratio | 8.8 kg/Hp, 113.3 Hp/tonne |
| Weight-to-torque ratio | 4 kg/Nm, 250.6 Nm/tonne |
| Power | 235 Hp @ 4000 rpm |
| Power per litre | 78.5 Hp/l |
| Torque | 520 Nm @ 2000-2750 rpm (383.53 lb.-ft. @ 2000-2750 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M57D30 |
| 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 | 17:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Coolant | 10.4 l (10.99 US qt | 9.15 UK qt) |
| Kerb Weight | 2075 kg (4574.59 lbs.) |
| Max. weight | 2675 kg (5897.37 lbs.) |
| Max load | 600 kg (1322.77 lbs.) |
| Trunk (boot) space – minimum | 570 l (20.13 cu. ft.) |
| Trunk (boot) space – maximum | 1450 l (51.21 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 | 120 kg (264.55 lbs.) |
| Length | 4877 mm (192.01 in.) |
| Width | 1983 mm (78.07 in.) |
| Width including mirrors | 2195 mm (86.42 in.) |
| Height | 1690 mm (66.54 in.) |
| Wheelbase | 2933 mm (115.47 in.) |
| Front track | 1644 mm (64.72 in.) |
| Rear (Back) track | 1706 mm (67.17 in.) |
| Front overhang | 858 mm (33.78 in.) |
| Rear overhang | 1086 mm (42.76 in.) |
| Ride height (ground clearance) | 212 mm (8.35 in.) |
| Drag coefficient (Cd) | 0.33 |
| Minimum turning circle (turning diameter) | 12.8 m (41.99 ft.) |
| Approach angle | 25.1° |
| Departure angle | 25.5° |
| Ramp-over (brakeover) angle | 19.1° |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, automatic transmission Steptronic |
| Front suspension | Independent multi-link suspension |
| 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 |
| Tires size | 255/50 R19 |
| Wheel rims size | 9J x 19 |
Powertrain & Engine Architecture
The heart of the X6 30d is the M57D30, a 3.0-liter inline-six diesel engine. This engine, a mainstay of BMW’s diesel lineup during the late 2000s, utilizes a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A variable geometry turbocharger (VGT) with an intercooler further enhances performance and efficiency. The M57D30 features four valves per cylinder and a robust cast iron block, contributing to its longevity. The engine produces 235 horsepower at 4000 rpm and a substantial 520 Nm (383 lb-ft) of torque between 2000 and 2750 rpm. Paired with this engine is a six-speed Steptronic automatic transmission, offering smooth shifts and the option for manual gear selection. This transmission was known for its responsiveness and ability to handle the engine’s torque output effectively.
Driving Characteristics
The X6 30d xDrive, with its automatic transmission, provided a comfortable and refined driving experience. While not as overtly sporty as the gasoline-powered variants, the diesel engine’s ample torque allowed for effortless acceleration and strong mid-range performance. The automatic transmission, while smooth, did slightly diminish the sense of urgency compared to the available six-speed manual. The xDrive all-wheel-drive system provided excellent traction in various conditions, enhancing stability and confidence. The gear ratios were tuned for a balance between fuel economy and responsiveness, prioritizing comfortable cruising over outright acceleration. 0-60 mph times were around 7.6 seconds, respectable for a vehicle of this size and weight.
Equipment & Trim Levels
The X6 30d xDrive typically came well-equipped, reflecting its luxury positioning. Standard features included leather upholstery, automatic climate control, a premium sound system, and BMW’s iDrive infotainment system. Optional extras included features like active steering, adaptive suspension, panoramic sunroof, and upgraded interior trim options. The 30d trim generally offered a slightly more subdued interior aesthetic compared to the higher-end models, focusing on comfort and practicality rather than outright opulence. Exterior styling was largely consistent across the E71 X6 range, with minor differences in wheel designs and trim details.
Chassis & Braking
The E71 X6 featured an independent multi-link suspension at both the front and rear, providing a comfortable ride and good handling characteristics. The suspension was tuned to balance comfort and control, given the vehicle’s size and weight. Braking duties were handled by ventilated discs on all four wheels, coupled with BMW’s ABS (Anti-lock Braking System). The X6 30d’s weight (approximately 2075 kg or 4574 lbs) necessitated a robust braking system to ensure adequate stopping power. Stabilizer bars were fitted front and rear to minimize body roll during cornering.
Market Reception & Comparison
The X6 30d was generally well-received in European markets, where diesel engines were preferred. Critics praised its fuel efficiency, strong torque, and comfortable ride. However, some reviewers found the styling polarizing and the handling less engaging than traditional sports cars. Compared to the xDrive35i gasoline model, the 30d offered superior fuel economy and torque, making it a more practical choice for long-distance driving. Compared to the xDrive50i, it provided a more affordable entry point into the X6 range, albeit with less power and performance. The 30d’s reliability was generally considered good, although diesel particulate filter (DPF) issues could arise with infrequent long-distance driving.
Legacy
The BMW X6 (E71) 30d xDrive Steptronic, while no longer in production, remains a popular choice in the used car market. The M57D30 engine is known for its durability and relatively straightforward maintenance. However, potential buyers should be aware of potential issues with the DPF, turbocharger, and fuel injectors. The Steptronic automatic transmission is generally reliable, but regular fluid changes are essential. The E71 X6, as a whole, represents a significant milestone in BMW’s history, establishing the brand as a pioneer in the luxury SAC segment. The 30d variant, in particular, offered a compelling combination of performance, efficiency, and practicality, making it a desirable option for those seeking a unique and capable SUV.
