The Mercedes-Benz G 300 D 4MATIC, produced from September 1993 to July 1994, represents a significant iteration of the iconic G-class (W463) series. Positioned as a robust and capable off-road vehicle, the G 300 D offered a diesel-powered alternative within the G-class lineup, appealing to buyers prioritizing durability and fuel efficiency over outright speed. This variant occupied a middle ground in the W463 range, slotting below the more powerful G 360 CDI and above the base G 230. It was a key model for Mercedes-Benz in markets where diesel engines were favored, particularly in Europe, and established the G-class’s reputation as a supremely capable all-terrain vehicle.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | G-class |
| Generation | G-class (W463) |
| Type (Engine) | G 300 D (113 Hp) 4MATIC |
| Start of production | September, 1993 |
| End of production | July, 1994 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Off-road vehicle |
| Seats | 5 |
| Doors | 3 |
| Fuel consumption (urban) | 14.7 l/100 km (16 US mpg, 19.2 UK mpg) |
| Fuel consumption (extra urban) | 10.9 l/100 km (21.6 US mpg, 25.9 UK mpg) |
| Fuel Type | Diesel |
| Maximum speed | 141 km/h (87.61 mph) |
| Weight-to-power ratio | 18.5 kg/Hp |
| Weight-to-torque ratio | 10.9 kg/Nm |
| Power | 113 Hp @ 4600 rpm |
| Power per litre | 37.7 Hp/l |
| Torque | 191 Nm @ 2700-2900 rpm (140.87 lb.-ft.) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 603.931 |
| Engine displacement | 2996 cm3 (182.83 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | Inline |
| Cylinder Bore | 87 mm (3.43 in.) |
| Piston Stroke | 84 mm (3.31 in.) |
| Compression ratio | 22:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Precombustion chamber injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 8 l (8.45 US qt | 7.04 UK qt) |
| Coolant | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Kerb Weight | 2090 kg (4607.66 lbs.) |
| Max. weight | 2620 kg (5776.11 lbs.) |
| Max load | 530 kg (1168.45 lbs.) |
| Fuel tank capacity | 96 l (25.36 US gal | 21.12 UK gal) |
| Length | 4185 mm (164.76 in.) |
| Width | 1690 mm (66.54 in.) |
| Height | 1908 mm (75.12 in.) |
| Wheelbase | 2400 mm (94.49 in.) |
| Front track | 1425 mm (56.1 in.) |
| Rear track | 1425 mm (56.1 in.) |
| Drivetrain Architecture | All wheel drive (4×4) |
| Number of gears | 5 |
| Gearbox type | Manual transmission |
| Front suspension | Coil spring, Rigid axle suspension, Trailing arm |
| Rear suspension | Rigid axle suspension, Trailing arm, Coil spring |
| Front brakes | Disc |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | 205/80 R 16 |
| Wheel rims size | 6 J x 16 |
Powertrain & Engine Architecture
The G 300 D was powered by the OM 603.931, a 3.0-liter inline-six cylinder diesel engine. This engine was a mainstay of Mercedes-Benz’s diesel offerings during the early to mid-1990s, known for its robustness and longevity. The OM 603 featured precombustion chamber injection, a system where fuel is partially combusted in a small chamber before entering the main cylinder, aiding in cold-start performance and reducing engine noise. The engine produced 113 horsepower at 4600 rpm and 191 Nm (140.87 lb-ft) of torque between 2700 and 2900 rpm. The engine’s relatively low-revving nature was typical of diesel engines of the era. The G 300 D was equipped with a 5-speed manual transmission, delivering power to all four wheels via Mercedes-Benz’s 4MATIC all-wheel-drive system. This system featured a permanent all-wheel drive setup with a center differential, providing enhanced traction in various off-road conditions.
Driving Characteristics
The G 300 D 4MATIC, with its 113 horsepower and 191 Nm of torque, offered a driving experience focused on capability rather than outright speed. Acceleration was modest, but the engine’s torque delivery provided ample pulling power, particularly useful for off-road driving and towing. The 5-speed manual transmission allowed for precise control, but the gear ratios were geared towards maximizing fuel efficiency and low-end torque rather than sporty performance. Compared to the more powerful G 360 CDI, the G 300 D felt noticeably slower, especially at higher speeds. However, the diesel engine’s fuel economy was significantly better, making it a more practical choice for long-distance travel. The 4MATIC system provided excellent traction on loose surfaces, and the G-class’s robust suspension absorbed bumps and irregularities with ease.
Equipment & Trim Levels
The G 300 D 4MATIC was typically equipped with a relatively basic level of trim, reflecting its utilitarian origins. Standard features included steel wheels, vinyl or cloth upholstery, and a simple dashboard layout. Air conditioning, power windows, and central locking were often optional extras. The interior was functional and durable, designed to withstand the rigors of off-road use. The G-class’s interior was not known for luxury, but rather for its practicality and robustness. Optional extras could include upgraded upholstery, a sunroof, and auxiliary lighting for off-road adventures.
Chassis & Braking
The G-class’s chassis was a body-on-frame construction, providing exceptional strength and durability. The suspension consisted of coil springs and rigid axles front and rear, offering a comfortable ride and excellent off-road articulation. The front brakes were discs, while the rear brakes were drums. ABS (Anti-lock braking system) was standard, enhancing safety during braking on paved surfaces. The steering was a recirculating ball system, providing a direct and responsive feel. The G 300 D’s relatively heavy weight (2090 kg / 4607.66 lbs) contributed to its stability, but also limited its acceleration and handling on paved roads.
Market Reception & Comparison
The G 300 D 4MATIC was well-received in markets where diesel engines were popular, particularly in Europe. Critics praised its off-road capability, durability, and fuel efficiency. However, some criticized its relatively slow acceleration and basic interior. Compared to the G 230, the G 300 D offered significantly more torque and better towing capacity. Compared to the G 360 CDI, it was less powerful but more fuel-efficient and generally more affordable. The G 300 D represented a compelling value proposition for buyers seeking a capable and reliable off-road vehicle.
Legacy
The OM 603 engine, found in the G 300 D, is renowned for its longevity and reliability. Properly maintained examples can accumulate very high mileage with minimal issues. Today, the G 300 D 4MATIC is a sought-after classic among G-class enthusiasts, particularly those who appreciate the simplicity and robustness of the early W463 models. While not as collectible as some of the more rare G-class variants, the G 300 D offers a unique blend of capability, durability, and affordability, making it a compelling choice for those seeking a classic off-road vehicle. The values of well-maintained examples have been steadily increasing in recent years, reflecting the growing demand for these iconic vehicles.
