BMW X5 M50d: 380HP Triple-Turbo Diesel SUV Review

The BMW X5 M50d stands out as a pinnacle of diesel engineering in the luxury SUV segment, delivering exceptional torque and refinement without sacrificing practicality. This model combines a sophisticated triple-turbo powertrain with BMW’s renowned driving dynamics, making it ideal for those seeking high performance and long-distance comfort.

Powertrain Excellence: The Heart of the M50d

At the core of the BMW X5 M50d lies a 3.0-liter inline-six diesel engine augmented by three turbochargers, producing 380 horsepower and a staggering 740 Nm of torque available from 2,000 to 3,000 rpm. This setup propels the hefty SUV from 0-60 mph in approximately 5.1 seconds, showcasing diesel’s prowess in delivering relentless acceleration.

The engine’s linear power delivery ensures smooth progression across the rev range, rarely needing more than third gear on winding roads. Paired with an eight-speed automatic transmission, gear changes are seamless, whether left to the adaptive logic or prompted via steering-wheel paddles. Fuel efficiency impresses at up to 41.5 mpg on combined cycles, balancing performance with economy for extended journeys.

Chassis and Handling: Precision Meets Comfort

Despite its 2,265 kg curb weight, the X5 M50d handles with surprising composure thanks to the xDrive all-wheel-drive system, which intelligently distributes torque between axles for optimal grip. Standard M Sport suspension with adaptive dampers maintains stability through corners, while active anti-roll technology keeps the body flat.

Optional four-wheel steering enhances maneuverability at low speeds, though some testers note it can feel inconsistent at higher paces. The ride quality strikes a balance: firm enough for spirited driving yet compliant over rough surfaces, especially with larger wheels. In Sport Plus mode, responses sharpen, but the M50d shines most as a refined cruiser rather than a track-focused machine.

Luxury Interior: Space and Technology

Step inside the X5 M50d, and you’re greeted by a premium cabin boasting sport seats with extensive electric adjustments and lumbar support. The M leather steering wheel integrates paddles and controls ergonomically, while a heads-up display projects vital info directly into the driver’s line of sight.

The iDrive infotainment system features an 8.8-inch high-resolution display supporting navigation, split-screen views, a 12GB hard drive, and internet connectivity. Ambient lighting, four-zone climate control, and aluminum trim elevate the ambiance. Cargo space is generous, with a split tailgate for easy loading, though third-row seating is available only without adaptive dampers.

• Spacious front and rear seating with commanding driving position
• Intuitive iDrive controller and favorite buttons
• Premium materials including M-specific accents
• Ample storage in center console and doors

Practicality and Versatility for Everyday Use

Beyond performance, the X5 M50d excels in utility. Its robust build supports family duties, with seven-seat configurations possible. The xDrive system ensures confident traction in varied conditions, from highways to light off-road trails. Wide tires on optional alloys provide tenacious grip, minimizing wheelspin.

Braking performance is strong, though the vehicle’s mass demands progressive inputs. Safety features include advanced driver aids, though the sheer size requires careful maneuvering on narrow lanes. Overall, it’s a practical choice for towing or long trips, emitting lower CO2 than many rivals.

Performance in Real-World Scenarios

On open roads, the M50d’s torque-rich engine devours miles effortlessly, maintaining composure above 5,000 rpm with minimal noise. Urban driving benefits from the smooth auto and precise low-speed handling. Track testing reveals limits imposed by weight and steering feel, prioritizing grand touring over aggression.

Compared to petrol counterparts or rivals like the Porsche Cayenne, the diesel offers superior mid-range pull and efficiency, though it trails in outright agility. Testers praise its ‘silky smooth’ delivery and ‘mind-boggling’ speed for the class.

Cost and Ownership Considerations

Priced around £70,000 in top specs, the M50d commands a premium over base 30d models, which offer similar dynamics for less. Running costs benefit from diesel economy and BMW’s three-year warranty. Resale holds strong due to the model’s desirability.

Maintenance involves standard diesel intervals, with turbo complexity warranting specialist care. Optional packs like M Sport Professional add value through enhanced chassis tech.

Pros and Cons at a Glance

• Pros: Massive torque, refined engine, excellent efficiency, premium interior, strong grip
• Cons: Heavy steering in sport modes, high price, mass affects agility, optional extras inflate cost

Frequently Asked Questions (FAQs)

Is the BMW X5 M50d faster than a petrol X5?

Yes, its 5.1-second 0-60 time rivals many petrol variants, thanks to superior torque.

What’s the fuel economy like?

Expect around 41.5 mpg combined, making it efficient for a performance SUV.

Can it seat seven passengers?

Yes, with the optional third row, though it sacrifices some suspension options.

How does xDrive perform off-road?

Excellent traction with variable torque split, suitable for light trails.

Is it worth the premium over the 30d?

For torque enthusiasts, yes; otherwise, the 30d suffices for most.

Final Verdict: A Diesel Masterpiece

The BMW X5 M50d redefines diesel SUVs, merging brute force with luxury and usability. While not the sharpest handler, its effortless power and comfort make it a top pick for refined performance.