The Mercedes-Benz W124, produced from 1985 to 1996, represented a significant leap forward in engineering and design for the German automaker. The facelifted version introduced in 1989 brought subtle but important refinements to the already highly regarded platform. Among the variants offered was the 300 D Turbo 4MATIC, a model combining the efficiency of a diesel engine with the added capability of all-wheel drive. This vehicle was primarily marketed in Europe, where demand for diesel-powered, all-weather vehicles was strong. The W124 series, known for its robust build quality and longevity, established a benchmark for mid-size luxury sedans and remains a popular classic among enthusiasts today.
Mercedes-Benz W124 300 D Turbo 4MATIC: A Detailed Overview
The 300 D Turbo 4MATIC, produced between September 1989 and July 1993, was a sophisticated offering within the W124 range. It catered to buyers seeking a blend of performance, economy, and all-season traction. While not officially sold in large numbers in the United States due to emissions regulations and market preferences at the time, the W124 series as a whole gained a following among American enthusiasts who appreciated its engineering and durability. The 300 D Turbo 4MATIC specifically addressed the need for a capable vehicle in regions experiencing inclement weather, offering a secure driving experience thanks to its permanent all-wheel-drive system.
Engine & Performance
At the heart of the 300 D Turbo 4MATIC lies the OM 603 D 30 A inline-six cylinder diesel engine, displacing 2,996 cubic centimeters (182.83 cubic inches). This engine, equipped with a turbocharger and precombustion chamber fuel injection, produced 147 horsepower at 4,600 rpm and a substantial 273 Newton-meters (201.35 lb-ft) of torque at 2,400 rpm. The turbocharger significantly enhanced the engine’s power output compared to naturally aspirated diesel counterparts. Power per liter was a respectable 49.1 hp/l. The engine’s longitudinal front-mounted layout contributed to a balanced weight distribution. Power is delivered to all four wheels via a four-speed automatic transmission. Acceleration from 0 to 100 km/h (0-62 mph) took 11.8 seconds, while 0 to 60 mph was achieved in approximately 11.2 seconds. The vehicle’s top speed was electronically limited to 198 km/h (123.03 mph). The weight-to-power ratio of 11 kg/hp and weight-to-torque ratio of 5.9 kg/Nm demonstrate a good balance between engine output and vehicle mass.
Design & Features
The W124 300 D Turbo 4MATIC is a four-door sedan with seating for five passengers. The 1989 facelift brought subtle styling updates, including revised front and rear fascias, and improved interior trim. The body’s design prioritized aerodynamic efficiency and passenger safety. The 4MATIC system, a key feature of this model, employed a permanent all-wheel-drive configuration. The system utilized an electrically or mechanically operated clutch to engage the front wheels when rear wheel traction was compromised. This provided enhanced stability and control in slippery conditions. Safety features, for the era, included an Anti-lock Braking System (ABS), which helped prevent wheel lockup during hard braking. The vehicle’s dimensions are substantial, measuring 4,740 mm (186.61 inches) in length, 1,740 mm (68.5 inches) in width, and 1,450 mm (57.09 inches) in height. The wheelbase is 2,800 mm (110.24 inches). The car rides on 195/65 R15 tires mounted on 6.5J x 15 inch wheels.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | W124 |
| Generation | W124 (facelift 1989) |
| Type | 300 D Turbo (147 Hp) 4MATIC Automatic |
| Start of production | September, 1989 |
| End of production | July, 1993 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 10.4 l/100 km (22.6 US mpg / 27.2 UK mpg / 9.6 km/l) |
| Fuel consumption (extra urban) | 7 l/100 km (33.6 US mpg / 40.4 UK mpg / 14.3 km/l) |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 11.8 sec |
| Acceleration 0 – 62 mph | 11.8 sec |
| Acceleration 0 – 60 mph | 11.2 sec |
| Maximum speed | 198 km/h (123.03 mph) |
| Weight-to-power ratio | 11 kg/Hp |
| Weight-to-torque ratio | 5.9 kg/Nm |
| Power | 147 Hp @ 4600 rpm |
| Power per litre | 49.1 Hp/l |
| Torque | 273 Nm @ 2400 rpm (201.35 lb.-ft. @ 2400 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | OM 603 D 30 A / 603.960 |
| 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 | Turbocharger |
| Valvetrain | SOHC |
| Engine oil capacity | 7.5 l (7.93 US qt | 6.6 UK qt) |
| Coolant | 9 l (9.51 US qt | 7.92 UK qt) |
| Kerb Weight | 1610 kg (3549.44 lbs.) |
| Max. weight | 2175 kg (4795.05 lbs.) |
| Max load | 565 kg (1245.61 lbs.) |
| Fuel tank capacity | 70 l (18.49 US gal | 15.4 UK gal) |
| Length | 4740 mm (186.61 in.) |
| Width | 1740 mm (68.5 in.) |
| Height | 1450 mm (57.09 in.) |
| Wheelbase | 2800 mm (110.24 in.) |
| Front track | 1501 mm (59.09 in.) |
| Rear track | 1491 mm (58.7 in.) |
| Drivetrain Architecture | All wheel drive (4×4). ICE drives rear wheels, front wheels engaged via clutch. |
| Number of gears and type of gearbox | 4 gears, automatic transmission |
| Front suspension | Wishbone |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic |
| Tires size | Front/Rear: 195/65 R15 |
| Wheel rims size | Front/Rear: 6.5J x 15 |
The Mercedes-Benz W124 300 D Turbo 4MATIC remains a testament to German engineering prowess. Its combination of diesel efficiency, all-wheel-drive capability, and robust construction has ensured its enduring appeal among automotive enthusiasts and collectors. The vehicle’s legacy continues as a symbol of quality and reliability in the classic car market.
