Mercedes ML350 CDI: Complete Review, Specs, And Pros

The Mercedes ML350 CDI represents a benchmark in the large premium SUV segment, combining a potent 3.0-liter V6 turbodiesel engine with sophisticated chassis technology and high-end cabin appointments. Delivering 255 horsepower and a massive 620Nm of torque, this model excels in effortless acceleration, achieving 0-62mph in just 7.4 seconds despite its substantial two-tonne weight. Its refined powertrain and comfortable ride make it ideal for motorway cruising and family adventures alike.

Powerful Diesel Heart: Performance That Impresses

At the core of the ML350 CDI lies a revised 3.0-liter V6 turbodiesel engine, tuned for both vigor and efficiency. Producing 190kW of power and 620Nm of torque, it propels the SUV with authority, surging past 1800rpm where the turbo fully engages. Reviewers note minimal turbo lag, allowing seamless overtaking and brisk acceleration to highway speeds.

The seven-speed 7G-Tronic automatic transmission shifts smoothly, keeping the engine in its sweet spot during everyday driving. Paddle shifters are available for manual control, though rarely needed due to the gearbox’s intelligence. Fuel economy is a highlight, with official figures around 7.3L/100km combined, translating to nearly 40mpg in real-world tests, a significant improvement over predecessors. CO2 emissions sit at approximately 189g/km, making it relatively eco-friendly for its class.

Luxurious and Spacious Interior Design

Step inside the ML350 CDI, and you’re greeted by a cabin that exudes premium quality. Tight shutlines, supple leather upholstery, and stitched accents on the dashboard and doors create an upscale ambiance. The artificial leather standard on many models is durable yet comfortable, complemented by climate control and a prominent infotainment screen perched atop the dash for easy visibility.

Seating is highly adjustable, offering a commanding driving position with excellent road visibility. Rear seats accommodate adults comfortably, and the 833-liter boot expands further with folded seats, providing versatility for family hauls or weekend getaways. Minor gripes include occasional squeaks from the center console, but overall build solidity is commendable.

• Premium materials: Leather-trimmed seats and soft-touch surfaces throughout.
• Ergonomics: Intuitive controls, clear instruments, and electric parking brake for added footwell space.
• Tech features: Standard sat-nav, Bluetooth, and a user-friendly interface.

Refined Ride and Handling Dynamics

The ML350 CDI prioritizes comfort over outright sportiness, delivering a smooth ride even on 19-inch alloys. Its air suspension (optional on some trims) absorbs bumps effectively, ensuring serenity on long hauls. Engine noise is remarkably hushed, with the diesel V6 quieter than many petrol rivals under acceleration or at cruise.

Handling is composed, with precise steering and minimal body roll, though it trails sportier foes like the Porsche Cayenne or BMW X5 in agility. Off-road capability is decent thanks to high ground clearance and optional 4Matic all-wheel drive, supporting a 3,500kg braked towing capacity. The turning circle of 11.6 meters aids urban maneuverability.

Advanced Safety and Practical Features

Safety is paramount, with a suite of active systems including adaptive cruise control, lane-keeping assist, and blind-spot monitoring. These features enhance family-friendly appeal, though some can be overly sensitive. Standard equipment is generous: multi-zone climate, parking sensors, and robust structural integrity contribute to peace of mind.

Practicality shines in daily use. The SUV’s dimensions—4,781mm long, 1,774mm high—balance presence with parkability. Fuel tank capacity supports extended ranges, with real-world tests showing over 350 miles per tank.

Reliability and Ownership Considerations

Owners report strong longevity from the OM642 diesel engine and 7G-Tronic gearbox, often exceeding 100,000 miles with proper maintenance like frequent oil changes. Diesel particulate filter (DPF) and AdBlue systems require vigilance, but the powertrain proves durable. Warranty coverage and service intervals add to its appeal as a used buy.

Pricing started around $101,400 plus on-roads, positioning it as a value leader against rivals. Resale holds well due to Mercedes prestige.

Pros and Cons at a Glance

Frequently Asked Questions (FAQs)

What is the fuel economy of the Mercedes ML350 CDI?

Claimed figures are around 7.3L/100km combined, with real-world tests often achieving 9.3L/100km under mixed driving.

Is the ML350 CDI suitable for towing?

Yes, it handles up to 3,500kg braked, making it excellent for trailers or caravans.

How reliable is the 3.0 V6 diesel engine?

Highly reliable with regular servicing; many units surpass 100,000 miles without major issues.

Does it have four-wheel drive?

Most models feature 4Matic all-wheel drive for enhanced traction.

What are the interior dimensions like?

Wheelbase of 2,915mm ensures spacious rear legroom and a 833L boot.