The Mercedes-Benz G-Class 250 GD 4MATIC, produced between June 1990 and September 1992, represents a crucial iteration of the iconic W463 series. Positioned as an entry-level offering within the G-Class range during its early years, the 250 GD aimed to broaden the appeal of the traditionally luxury-focused vehicle by offering a more economical and accessible option, particularly in European markets. This model combined the G-Class’s renowned off-road capability with a fuel-efficient diesel engine, making it a popular choice for both utilitarian and recreational drivers. It served as a bridge between the more powerful gasoline variants and the later, more refined diesel models.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | G-class |
| Generation | G-class (W463) |
| Type (Engine) | 250 GD (94 Hp) 4MATIC |
| Start of production | June, 1990 |
| End of production | September, 1992 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Off-road vehicle |
| Seats | 5 |
| Doors | 3 |
| Fuel consumption (urban) | 13.5 l/100 km (17.4 US mpg, 20.9 UK mpg, 7.4 km/l) |
| Fuel consumption (extra urban) | 10.5 l/100 km (22.4 US mpg, 26.9 UK mpg, 9.5 km/l) |
| Fuel Type | Diesel |
| Maximum speed | 130 km/h (80.78 mph) |
| Weight-to-power ratio | 22 kg/Hp, 45.4 Hp/tonne |
| Weight-to-torque ratio | 13.1 kg/Nm, 76.3 Nm/tonne |
| Power | 94 Hp @ 4600 rpm |
| Power per litre | 37.6 Hp/l |
| Torque | 158 Nm @ 2600-3100 rpm (116.53 lb.-ft. @ 2600-3100 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 602.931 |
| Engine displacement | 2497 cm3 (152.38 cu. in.) |
| Number of cylinders | 5 |
| 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 | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Coolant | 7.3 l (7.71 US qt | 6.42 UK qt) |
| Kerb Weight | 2070 kg (4563.57 lbs.) |
| Max. weight | 2620 kg (5776.11 lbs.) |
| Max load | 550 kg (1212.54 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 | 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 | 5 gears, 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 |
| 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 heart of the 250 GD is the OM 602.931, a 2.5-liter inline five-cylinder diesel engine. This engine utilizes precombustion chamber injection, a system common in Mercedes-Benz diesels of the era, known for its relatively quiet operation and good fuel efficiency. The OM602 featured a single overhead camshaft (SOHC) valvetrain operating two valves per cylinder. The engine produced 94 horsepower at 4600 rpm and 158 Nm (116.53 lb-ft) of torque between 2600 and 3100 rpm. This torque curve, while not exceptionally high by modern standards, provided ample low-end grunt, crucial for off-road driving and towing. The engine’s longitudinal front-engine layout contributed to the G-Class’s balanced weight distribution. The 250 GD was exclusively offered with a five-speed manual transmission, chosen for its robustness and suitability for off-road conditions.
Driving Characteristics
The 250 GD 4MATIC, with its 94 horsepower and manual transmission, offered a driving experience focused on practicality and capability rather than outright speed. Acceleration was modest, but the engine’s torque allowed for confident climbing and maneuvering in challenging terrain. The five-speed manual gearbox provided precise control, and the gear ratios were well-suited to both on-road cruising and low-speed off-road work. Compared to the more powerful six-cylinder gasoline versions of the G-Class, the 250 GD felt less refined but more economical and arguably more durable. The manual transmission also gave the driver more control in off-road situations compared to the later automatic options.
Equipment & Trim Levels
The 250 GD 4MATIC was typically equipped with basic, utilitarian features reflecting its positioning as an entry-level model. Standard equipment included steel wheels, vinyl upholstery, and a simple dashboard layout. Power steering was often included, but air conditioning, power windows, and upgraded audio systems were typically optional extras. The interior was designed for durability and ease of cleaning, prioritizing functionality over luxury. The exterior was generally understated, with minimal chrome trim and a focus on practicality.
Chassis & Braking
The W463 G-Class chassis is renowned for its robust construction and exceptional off-road capability. The 250 GD utilized a ladder-frame chassis, providing a solid foundation for tackling rough terrain. Suspension consisted of coil springs and rigid axles with trailing arms, offering significant wheel articulation. Braking was accomplished via disc brakes on the front wheels and drum brakes on the rear. While adequate for the vehicle’s weight and performance, the rear drum brakes were a point of criticism compared to the all-disc setups found on higher-end G-Class models. The 250 GD featured a hydraulic steering system, providing reasonable steering feel and control.
Market Reception & Comparison
The 250 GD 4MATIC was generally well-received in European markets, particularly among those seeking a capable and economical off-road vehicle. Critics praised its fuel efficiency and durability, but noted its relatively modest performance compared to the more powerful G-Class variants. Compared to the 280 GE (gasoline) or later 300 GD (diesel) models, the 250 GD offered a lower price point but sacrificed some performance and refinement. Its fuel economy was significantly better than the gasoline models, making it a more practical choice for everyday use.
Legacy
The Mercedes-Benz G-Class 250 GD 4MATIC holds a significant place in the G-Class lineage. Its robust powertrain and simple design contribute to its enduring reliability. Today, well-maintained examples are sought after by collectors and enthusiasts, particularly those interested in the early years of the W463 series. While not as highly valued as some of the more powerful or rare G-Class variants, the 250 GD represents a unique and capable iteration of this iconic vehicle, offering a blend of practicality, durability, and off-road prowess. The OM602 engine is known for its longevity, and many examples remain on the road today, a testament to its robust engineering.
