The BMW X6 (G06) M50d, produced from November 2019 to December 2020, represents a high-performance variant within the third generation of the X6 Sports Activity Coupe (SAC). Positioned as a premium offering, the M50d combined potent diesel power with BMW’s xDrive all-wheel-drive system and the Steptronic automatic transmission. It aimed to deliver a blend of luxury, performance, and practicality, appealing to buyers seeking a dynamic and capable SUV. This model occupied the upper echelon of the G06 lineup, sitting below the full-fledged X6 M but offering a significant performance upgrade over the lower-trim models like the xDrive30d and xDrive40i.
Technical Specifications
| Brand | BMW |
| Model | X6 |
| Generation | X6 (G06) |
| Type (Engine) | M50d (400 Hp) xDrive Steptronic |
| Start of production | November, 2019 |
| End of production | December, 2020 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SAC |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 8.0-8.1 l/100 km (29.4 – 29 US mpg, 35.3 – 34.9 UK mpg, 12.5 – 12.3 km/l) |
| Fuel consumption (extra urban) | 6.3-6.8 l/100 km (37.3 – 34.6 US mpg, 44.8 – 41.5 UK mpg, 15.9 – 14.7 km/l) |
| Fuel consumption (combined) | 6.9-7.2 l/100 km (34.1 – 32.7 US mpg, 40.9 – 39.2 UK mpg, 14.5 – 13.9 km/l) |
| CO2 emissions | 181-190 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 5.2 sec |
| Acceleration 0 – 62 mph | 5.2 sec |
| Acceleration 0 – 60 mph | 4.9 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d-Temp |
| Weight-to-power ratio | 5.7 kg/Hp, 177 Hp/tonne |
| Weight-to-torque ratio | 3 kg/Nm, 336.3 Nm/tonne |
| Power | 400 Hp @ 4400 rpm |
| Power per litre | 133.6 Hp/l |
| Torque | 760 Nm @ 2000-3000 rpm (560.55 lb.-ft. @ 2000-3000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | B57D30C |
| 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 | 16:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Twin-power turbo, Intercooler |
| Engine oil capacity | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Coolant | 11.1 l (11.73 US qt | 9.77 UK qt) |
| Kerb Weight | 2260 kg (4982.45 lbs.) |
| Max. weight | 3010 kg (6635.91 lbs.) |
| Max load | 750 kg (1653.47 lbs.) |
| Trunk (boot) space – minimum | 580 l (20.48 cu. ft.) |
| Trunk (boot) space – maximum | 1530 l (54.03 cu. ft.) |
| Fuel tank capacity | 80 l (21.13 US gal | 17.6 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 3500 kg (7716.18 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Permitted towbar download | 140 kg (308.65 lbs.) |
| Length | 4935 mm (194.29 in.) |
| Width | 2004 mm (78.9 in.) |
| Width including mirrors | 2212 mm (87.09 in.) |
| Height | 1696 mm (66.77 in.) |
| Wheelbase | 2975 mm (117.13 in.) |
| Front track | 1678 mm (66.06 in.) |
| Rear (Back) track | 1698 mm (66.85 in.) |
| Front overhang | 878 mm (34.57 in.) |
| Rear overhang | 1082 mm (42.6 in.) |
| Ride height (ground clearance) | 216 mm (8.5 in.) |
| Drag coefficient (Cd) | 0.36 |
| Minimum turning circle (turning diameter) | 12.6 m (41.34 ft.) |
| 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 | Front wheel tires: 275/40 R21 107Y XL Rear wheel tires: 315/35 R21 111Y XL |
| Wheel rims size | Front wheel rims: 9.5J x 21 Rear wheel rims: 10.5J x 21 |
INTRODUCTION
The BMW X6 (G06) M50d, launched in late 2019, represented a significant step forward in the blending of performance and practicality within the luxury SUV segment. Built on the G06 platform, which also underpins the X5, the M50d distinguished itself with its potent diesel engine and sophisticated all-wheel-drive system. It was designed to appeal to drivers who desired the commanding presence and versatility of an SUV, coupled with the driving dynamics typically associated with BMW’s performance models. Production continued until December 2020, making it a relatively short-lived but impactful variant within the G06 generation.
Powertrain & Engine Architecture
At the heart of the X6 M50d lies the B57D30C, a 3.0-liter inline-six diesel engine. This engine is a marvel of modern diesel technology, featuring a sophisticated common-rail direct injection system and a twin-turbocharger setup. The turbochargers, working in sequence, provide both immediate response and sustained power delivery. The engine also incorporates an intercooler to further enhance efficiency. The B57 engine family is known for its robustness and ability to handle significant power upgrades. The M50d’s version produces 400 horsepower at 4,400 rpm and a substantial 760 Nm (560.55 lb.-ft.) of torque between 2,000 and 3,000 rpm. This torque output is a key characteristic, providing effortless acceleration and strong pulling power. The engine is paired with BMW’s 8-speed Steptronic automatic transmission, which offers smooth and quick shifts. This transmission is programmed for both efficiency and performance, adapting its shift points based on driving style and conditions.
Driving Characteristics
The X6 M50d delivers a driving experience that is surprisingly agile for a vehicle of its size and weight. The abundant torque from the diesel engine provides strong acceleration from virtually any speed, making overtaking maneuvers effortless. While not as overtly sporty as the X6 M, the M50d offers a refined and engaging driving experience. The xDrive all-wheel-drive system provides excellent traction in all weather conditions, enhancing stability and confidence. The 8-speed automatic transmission contributes to the smooth and seamless power delivery. Compared to the xDrive40i, the M50d offers significantly more power and torque, resulting in noticeably quicker acceleration. Against the xDrive30d, the difference is even more pronounced, with the M50d providing a far more dynamic and responsive driving experience. The gear ratios are tuned to maximize both acceleration and fuel efficiency, providing a good balance between performance and economy.
Equipment & Trim Levels
The M50d came standard with a comprehensive array of luxury and technology features. Interior appointments typically included premium leather upholstery, power-adjustable front seats with memory function, and a panoramic sunroof. Standard technology included BMW’s iDrive infotainment system with a large touchscreen display, navigation, Apple CarPlay, and Android Auto compatibility. Safety features were also abundant, including adaptive cruise control, lane departure warning, automatic emergency braking, and a 360-degree camera system. Optional extras included upgraded audio systems, individual paint colors, and various interior trim options. The M Sport package was a popular option, adding unique exterior styling elements and sportier interior touches.
Chassis & Braking
The X6 M50d features a robust chassis designed to handle the engine’s power and provide a comfortable ride. The front suspension utilizes a double wishbone design, while the rear suspension employs an independent multi-link setup. This configuration provides excellent wheel control and minimizes body roll. The M50d is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The braking system is further enhanced by ABS (Anti-lock Braking System) and electronic stability control. The suspension is tuned to provide a balance between comfort and handling, offering a compliant ride without sacrificing agility.
Market Reception & Comparison
The X6 M50d was generally well-received by automotive critics, who praised its powerful engine, refined driving dynamics, and luxurious interior. However, some reviewers noted that the diesel engine, while potent, lacked the emotional appeal of a gasoline engine. Fuel economy was consistently praised, with the M50d achieving respectable figures for a vehicle of its size and performance. Compared to the X6 xDrive40i, the M50d offered a significant performance advantage but came at a higher price point. The M50d’s reliability has proven to be generally good, although diesel engines can be more susceptible to issues with the emissions control systems.
Legacy
The BMW X6 (G06) M50d represents a compelling combination of performance, luxury, and practicality. While its production run was relatively short, it remains a desirable vehicle in the used car market. The B57 diesel engine is known for its durability and potential for tuning, making the M50d a popular choice for enthusiasts. The vehicle’s sophisticated all-wheel-drive system and comfortable ride further enhance its appeal. As a bridge between the mainstream X6 models and the high-performance X6 M, the M50d carved out a unique niche for itself, offering a compelling alternative for buyers seeking a dynamic and capable luxury SUV.
