The Mercedes-Benz G 350d Long, produced from 2015 to 2017, represents a significant iteration of the iconic G-Class (W463) series. This variant, characterized by its extended wheelbase and powerful V6 diesel engine, aimed to blend the G-Class’s legendary off-road capability with increased passenger comfort and practicality. Positioned as a mid-range offering within the G-Class lineup during its production run, it served as a more accessible entry point compared to the higher-performance G 550 and G 63 AMG models. The “Long” designation refers to the extended body, providing more rear passenger legroom, a feature particularly appealing in markets where the G-Class was often used as a family vehicle or for chauffeured transport.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | G-class |
| Generation | G-class Long (W463, facelift 2015) |
| Type (Engine) | G 350d V6 (245 Hp) 4MATIC 7G-TRONIC PLUS |
| Start of production | 2015 |
| End of production | 2017 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Off-road vehicle |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban (NEDC) | 11.1 l/100 km (21.2 US mpg) |
| Fuel consumption (economy) – extra urban (NEDC) | 9.1 l/100 km (25.8 US mpg) |
| Fuel consumption (economy) – combined (NEDC) | 9.9 l/100 km (23.8 US mpg) |
| CO2 emissions (NEDC) | 261 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 8.8 sec |
| Acceleration 0 – 62 mph | 8.8 sec |
| Acceleration 0 – 60 mph | 8.4 sec |
| Maximum speed | 192 km/h (119.3 mph) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 10.4 kg/Hp |
| Weight-to-torque ratio | 4.2 kg/Nm |
| Power | 245 Hp @ 3600 rpm |
| Torque | 600 Nm @ 1600-2400 rpm (442.54 lb.-ft. @ 1600-2400 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 642.887 |
| Engine displacement | 2987 cm3 (182.28 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 92 mm (3.62 in.) |
| Compression ratio | 15.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 12.5 l (13.21 US qt | 11 UK qt) |
| Kerb Weight | 2537 kg (5593.13 lbs.) |
| Max. weight | 3200 kg (7054.79 lbs.) |
| Max load | 663 kg (1461.66 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Trunk (boot) space – maximum | 2250 l (79.46 cu. ft.) |
| Fuel tank capacity | 96 l (25.36 US gal | 21.12 UK gal) |
| Max. roof load | 200 kg (440.92 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 | 4764 mm (187.56 in.) |
| Width | 1867 mm (73.5 in.) |
| Width including mirrors | 2056 mm (80.94 in.) |
| Height | 1954 mm (76.93 in.) |
| Wheelbase | 2850 mm (112.2 in.) |
| Front track | 1515 mm (59.65 in.) |
| Rear (Back) track | 1515 mm (59.65 in.) |
| Front overhang | 827 mm (32.56 in.) |
| Rear overhang | 820 mm (32.28 in.) |
| Ride height (ground clearance) | 235 mm (9.25 in.) |
| Drag coefficient (Cd) | 0.54 |
| Minimum turning circle (turning diameter) | 13.6 m (44.62 ft.) |
| Approach angle | 30° |
| Departure angle | 30° |
| Ramp-over (brakeover) angle | 24° |
| Climb angle | 45° |
| Wading depth | 600 mm (23.62 in.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives permanently the four wheels of the vehicle. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 7 gears, automatic transmission G-TRONIC PLUS |
| Front suspension | Coil spring, Rigid axle suspension, Trailing arm |
| Rear suspension | Rigid axle suspension, Trailing arm, Coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
Powertrain & Engine Architecture
The G 350d Long is powered by the OM 642.887 3.0-liter V6 turbodiesel engine. This engine, a mainstay in many Mercedes-Benz vehicles of the era, is known for its robust construction and strong low-end torque. The OM 642.887 utilizes a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A single turbocharger with an intercooler further enhances performance. The engine produces 245 horsepower at 3600 rpm and a substantial 600 Nm (442.54 lb-ft) of torque between 1600 and 2400 rpm. This torque output is particularly well-suited to the G-Class’s off-road applications, providing ample pulling power at low speeds. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. The transmission is a 7G-TRONIC PLUS seven-speed automatic, known for its smooth shifting and efficiency. This transmission is electronically controlled and adapts to driving conditions for optimal performance.
Driving Characteristics
The combination of the 3.0-liter diesel and the 7G-TRONIC PLUS transmission results in a driving experience that prioritizes usability and relaxed cruising. While not a sports car, the G 350d Long offers respectable acceleration, achieving 0-60 mph in approximately 8.4 seconds. The abundant torque makes overtaking effortless, and the automatic transmission provides seamless gear changes. Compared to the G 550’s V8, the G 350d offers less outright power, but its superior fuel economy and lower operating costs make it a more practical choice for many owners. The 7G-TRONIC’s gear ratios are tuned for both on-road comfort and off-road capability, providing a balance between fuel efficiency and low-speed crawling ability. The long wheelbase contributes to a more stable ride on paved roads, although it slightly reduces maneuverability in tight spaces.
Equipment & Trim Levels
The G 350d Long typically came well-equipped, reflecting the G-Class’s premium positioning. Standard features included leather upholstery, automatic climate control, a multi-function steering wheel, and a high-end audio system. Optional extras were plentiful, including heated seats, a sunroof, navigation system, and various off-road packages that added features like a locking differential and reinforced underbody protection. Interior trim options allowed for customization, with a range of wood veneers and metallic accents available. The extended wheelbase provided significantly more rear legroom compared to the standard G-Class, enhancing passenger comfort on longer journeys.
Chassis & Braking
The G-Class chassis is a body-on-frame construction, renowned for its strength and durability. The G 350d Long utilizes a rigid axle suspension with coil springs at both the front and rear, providing excellent off-road articulation. The front suspension employs a trailing arm design, while the rear features a similar setup. Braking duties are handled by ventilated discs at the front and solid discs at the rear. Anti-lock braking system (ABS) is standard. The steering system is a recirculating ball type with hydraulic power assistance, providing a robust and reliable feel.
Market Reception & Comparison
The G 350d Long was generally well-received by automotive critics, who praised its blend of luxury, capability, and fuel efficiency. It offered a compelling alternative to the more expensive G 550 and G 63 AMG models, appealing to buyers who prioritized practicality and running costs. Fuel economy, while not exceptional by modern standards, was significantly better than that of the gasoline-powered G-Class variants. Reliability was generally good, although the G-Class’s complex systems and off-road focus meant that maintenance costs could be higher than those of more conventional SUVs.
Legacy
The G 350d Long (W463) remains a desirable vehicle in the used car market. The OM 642 engine is known for its longevity, provided it has been properly maintained. The G-Class’s iconic design and legendary off-road capability continue to attract enthusiasts. While newer G-Class models offer more advanced technology and refinement, the W463 generation, particularly the Long variant, represents a sweet spot for those seeking a classic, capable, and relatively affordable luxury SUV. Parts availability is generally good, although specialized components can be expensive. The G 350d Long stands as a testament to Mercedes-Benz’s commitment to building robust and enduring vehicles.
