Undefined Mercedes-Benz X 350 D Review: 12 Key Insights

The Mercedes-Benz X-Class represents an intriguing proposition in the pickup truck market—a vehicle that attempts to bridge the gap between commercial utility and premium automotive excellence. The X 350 d variant, powered by a 3.0-litre V6 diesel engine, stands as the flagship of this lineup, offering buyers a compelling blend of refinement, performance, and off-road capability that few competitors can match. This review examines what makes this German-engineered pickup worthy of consideration for those seeking something beyond the ordinary work truck.

Engine Performance and Acceleration Capabilities

At the heart of the X 350 d lies an impressive powerplant that delivers genuine performance credentials for its class. The 3.0-litre V6 diesel engine produces 255 horsepower and 406 lb-ft of torque, with the maximum torque available from just 1,400 rpm. This low-end torque availability translates directly to meaningful pulling power and responsive acceleration throughout the driving range.

Acceleration figures underscore the X 350 d’s performance intentions. The truck achieves 0-60 mph in approximately 7.4 to 7.9 seconds, depending on testing conditions and transmission calibration, with a top speed of 127 mph. For context, this represents a significant performance advantage over the four-cylinder variants, which require approximately 10 seconds for the same acceleration benchmark. The difference becomes immediately apparent during highway merging and overtaking maneuvers, where the V6 delivers swift, confident progress.

The responsive nature of the engine combines with Mercedes’ proven 7-speed automatic transmission to create a powertrain that feels considerably more car-like than traditional commercial pickup trucks. Unlike competitors using conventional truck gearboxes, the X 350 d employs genuine Mercedes 7G-Tronic technology, contributing substantially to the refined driving experience. Manual override via steering wheel-mounted paddle shifters provides additional control when desired, though the automatic mode proves sufficiently responsive for most driving scenarios.

Fuel Economy and Efficiency Considerations

The trade-off for impressive power delivery emerges in fuel consumption figures. Official combined consumption ratings claim approximately 31.4 mpg, though real-world testing reveals more modest results. Extended driving at 23-24 mpg represents a realistic expectation during varied driving conditions, while highway cruising at steady speeds yields marginally better efficiency, approaching 33 mpg on motorway journeys.

This fuel consumption profile reflects the engine’s tuning prioritization toward performance rather than frugality. The relatively aggressive automatic transmission calibration, which maintains engine revolutions higher than optimal for efficiency, contributes to this characteristic. Drivers prioritizing maximum economy may find the four-cylinder variants more suitable, though the V6’s superior torque availability often compensates through reduced need for harsh throttle inputs.

Transmission Dynamics and Driver Control

Mercedes’ decision to equip the X 350 d with its proprietary transmission technology distinguishes this vehicle significantly from competitors using badge-engineered solutions. The 7-speed automatic gearbox demonstrates genuine Mercedes engineering, featuring smooth, imperceptible gearchanges that contribute to the overall refinement impression.

The transmission’s tuning emphasizes comfort and smooth power delivery over sporty shifts, maintaining relatively constant engine speeds across gear changes. This approach, while potentially sacrificing marginal performance gains, creates an exceptionally serene driving atmosphere during normal motoring. The paddle shifters enable manual control when desired, though their practical utility remains limited for most driving situations, as the transmission’s automatic logic generally outperforms manual selection.

Ride Quality and Suspension Dynamics

One of the X 350 d’s most impressive characteristics emerges in its ride quality, an area where it fundamentally outperforms conventional pickup trucks and even rivals many premium SUVs. The independent rear suspension architecture, rather than the traditional solid axle found on lesser variants, contributes substantially to ride compliance and comfort during extended driving sessions.

The suspension geometry absorbs road imperfections effectively while maintaining control and body discipline. Passengers experience notable confidence that evolves from understanding the chassis architecture prioritizes comfort without sacrificing stability. Longitudinal rigidity remains excellent, preventing the floating sensation common in some truck designs, while transverse movements are sufficiently controlled to minimize side-to-side motion during cornering.

This suspension sophistication means that long-distance driving comfort approaches luxury SUV standards rather than traditional work truck characteristics. The cabin isolation further contributes, with effective sound deadening and vibration damping creating an environment suitable for business travel or leisure driving, not merely utility transportation.

Interior Refinement and Comfort Features

Upon entering the X 350 d, occupants encounter an environment substantially more refined than typical pickup truck interiors. The standard Progressive Interior and Exterior package elevates the experience through design elements including the distinctive twin-blade radiator grille, integrated Mercedes badging, chrome door handles, and body-colored side mirrors.

Climate control utilizes Thermotronic automatic technology, responding dynamically to ambient conditions and solar load rather than requiring constant manual adjustment. The leather-wrapped multifunctional steering wheel incorporates shift paddles and provides intuitive control access. Dashboard instrumentation features dual-tube indicator clusters presenting information with characteristic Mercedes clarity.

Keyless-go functionality and start/stop technology represent additions often absent from commercial-focused trucks, contributing to the premium experience. The Dynamic Select drive mode controller allows drivers to adjust powertrain characteristics and terrain response modes, though the vehicle’s naturally compliant setup performs admirably across most conditions without adjustment.

Interior storage areas remain somewhat limited compared to rivals, reflecting the truck’s passenger-forward design philosophy. However, the cabin ergonomics demonstrate thoughtful engineering, with controls positioned logically and interfaces responding intuitively to driver input. Noise insulation throughout the cabin, nearly comparable to SUVs rather than trucks, significantly enhances the premium atmosphere.

Four-Wheel-Drive System and Off-Road Capability

The X 350 d’s permanent all-wheel-drive system employs Mercedes’ proven 4MATIC technology, engineered specifically for the X-Class rather than adapted from another manufacturer. The system features an electronically controlled center differential with a 40:60 front-to-rear bias, directing proportionally more torque rearward compared to four-cylinder variants using a 50:50 split.

This rear-bias distribution enhances traction in challenging terrain while maintaining confidence during on-road driving. The locking rear differential and low-range transfer case provide additional capability when confronting genuinely demanding obstacles. Electronic terrain response systems allow drivers to select modes optimized for specific conditions—snow, sand, mud, and rock surfaces each receiving appropriate adjustments to traction control and engine response.

Practical off-road testing confirms that the X 350 d represents a genuinely capable platform across varied terrain types. The independent rear suspension, while prioritizing road comfort, provides sufficient articulation for serious four-wheel-drive work. Ground clearance and approach/departure angles remain respectable, allowing navigation of genuine obstacles despite the relatively car-like suspension geometry.

The combination of torque availability from low engine speeds and intelligent electronic systems creates an off-road platform that inspires confidence without demanding extensive technical skill from the operator. The vehicle’s mass and wheelbase provide stability across obstacles, while the powerful engine ensures that throttle application translates into meaningful progress.

Handling Characteristics and On-Road Behavior

On paved surfaces, the X 350 d demonstrates handling characteristics reflecting its luxury-focused design intent. The vehicle prioritizes ride comfort and stability rather than sporty agility, though it never feels sluggish or disconnected from the road surface. Hydraulic power steering provides adequate feedback while maintaining the light, manageable effort appropriate for a vehicle of this size.

Body roll during spirited cornering remains apparent, reflecting the suspension’s tuning philosophy, though the vehicle never feels unstable or confidence-undermining. Stability control systems intervene judiciously, maintaining momentum through sweeping curves while preventing dangerous oversteer tendencies. The substantial mass works in favor of directional stability, though it discourages aggressive driving due to the vehicle’s physical dimensions and inherent truck dynamics.

Low-speed maneuverability surprises with its competence, aided by relatively light steering effort at parking speeds. The well-judged controls make navigating narrow spaces and executing precise movements stress-free, an achievement considering the vehicle’s considerable size. Power steering calibration demonstrates Mercedes’ attention to detail, providing appropriate assistance throughout the speed range.

Comparative Performance Against Rivals

The Mercedes X 350 d competes directly against established competitors including the Volkswagen Amarok V6 and other premium pickup offerings. Head-to-head comparisons reveal the Mercedes’ superiority in refinement and on-road comfort, though performance metrics remain competitive rather than dominant.

The Amarok V6 offers slightly higher peak power, particularly when utilizing its overboost function, yet the Mercedes delivers comparable real-world acceleration and superior mid-range responsiveness through its intelligent torque management. Where the Mercedes genuinely separates itself emerges through its refined driving environment, premium cabin atmosphere, and integrated technology systems that competitors struggle to match.

Exterior Design and Aesthetic Appeal

Visually, the X 350 d presents a contemporary pickup truck silhouette that successfully integrates Mercedes design language without appearing awkwardly translated from SUV or sedan platforms. The distinctive radiator grille and integrated badging immediately communicate the vehicle’s premium positioning, while the body-colored side mirrors and chrome door handles add visual distinction unavailable on lesser variants.

The truck bed accommodates extensive personalization through available tonneau covers, hard tops, and accessories, allowing buyers to tailor the vehicle to specific requirements. The standard 17-inch six-spoke wheels strike an appropriate balance between capability and aesthetic refinement, contributing to the overall integrated appearance.

Paint options and exterior trim combinations permit further personalization, though the basic design remains impressive in stock form. The contemporary rear styling and traditional truck proportions create visual harmony, avoiding the awkward proportions that sometimes plague premium truck offerings.

Towing and Payload Capabilities

The V6 diesel engine provides substantial towing capacity suitable for serious trailering work, leveraging the available torque from low engine speeds. The payload capacity, while respectable, remains constrained by the independent rear suspension and overall platform design, with the V6 model proving less capable than four-cylinder variants in this specific metric.

This characteristic reflects Mercedes’ design philosophy prioritizing ride comfort and refinement over maximum load-carrying capacity. Buyers requiring extreme payload performance may find conventional pickup trucks more suitable, though the X 350 d handles typical commercial tasks effectively within its designed parameters.

Safety Technology and Brand Prestige

As a Mercedes product, the X 350 d benefits from the brand’s extensive safety technology integration and quality reputation. Modern electronic stability systems, multiple airbags, and structural engineering reflect established automotive safety standards. The brand prestige carries genuine value in professional environments, where the Mercedes badge communicates quality and reliability to clients and associates.

Verdict and Recommendation

The Mercedes-Benz X 350 d succeeds admirably in its mission to deliver genuine automotive refinement within a working truck package. The combination of powerful yet responsive diesel engine, premium interior environment, sophisticated suspension dynamics, and proven off-road capability creates a compelling proposition for buyers rejecting conventional pickup truck compromises.

This vehicle targets discerning purchasers prioritizing driving comfort, premium atmosphere, and refinement without sacrificing practical capability. Those seeking traditional work trucks with maximum payload capacity may find competing offerings more suitable, but for buyers desiring luxury and sophistication combined with genuine utility, the X 350 d represents an exceptional solution that few competitors can genuinely match.