Mercedes-Benz 300D is First Produced

The first Mercedes-Benz 300D automobile (not to be confused with the 300d) was introduced in 1975 (U.S.) and started its life by placing the newly developed 3.0 litre five-cylinder naturally aspirated diesel engine 617.910 in a W115 chassis four-cylinder Mercedes-Benz 240D diesel. For the American market those cars only came with power windows and automatic transmission.
The W123 chassis of the Mercedes-Benz 300D was introduced as a 1976 model (1977 U.S.). Its 3.0 litre five-cylinder diesel engine with indirect injection (using a Bosch MW for the American market, or W for the rest of the world) piston-type mechanical fuel injection pump, produced 80 to 88 hp (59 to 65 kW), depending on the year or country. This model features an extra 600 cm³ displacement compared to the four-cylinder Mercedes-Benz 240D diesel. The W123 chassis evolution continued with the addition of the 300D Turbo Diesel in 1982 (1981 for station wagon), sporting a 3.0 litre five-cylinder Garrett turbocharged engine which was originally developed in 1978 and first offered in the US market for 300SD models in 1979. This engine developed 118 to 123 hp (88 to 91 kW) and considerably improved the car's performance while still maintaining the superb reliability and efficiency of earlier models. In addition to the sedan (300D) a station wagon (300TD) and coupe (300CD) were also produced. The 300TD also had optional rearward facing third row seat which could fold flat into the floor, which was also seen on Volvo, Saab 95 and Ford Taurus station wagons.

Production of the W123 chassis ended in 1985 but in many countries as many as 75% of the cars originally registered remain on the road today 20 years later, a testament to the quality and durability of the original design. The 300D badge continued on in the W124 chassis family until 1993, but as a completely different design.
The W124 chassis 300D (pre E Class facelift) has the OM603 engine, which is a 3.0 litre six-cylinder turbocharged engine that appeared for one year only, 1987. The Turbo Diesel W124 appeared anew in 1990 until 1993, as the 300D 2.5 Turbo, with the OM602 engine. The latter engine was a 2.5 litre five cylinder turbocharged engine.

For many years now, there has been a stigma that having a diesel-powered engine spells sub-par engine performance over gas engines. In terms of revving up more horsepower, the gas engine is the clear winner as it is proven for quick and easier starts in cold weather and quiet acceleration. Availability of fuel is also an advantage. But in terms of pulling heavy loads, diesel fares better as its brute pulling force is testament to its torque advantage. And in the long run, a diesel engine can run longer than its gas-powered counterpart with its durable components. This long-term care edge has been the hallmark of what a diesel-powered engine is made of.

Such performance is proven by the Mercedes Benz 300D. This 4-door station wagon (also in touring sedan type) is built not only for elegance but for rugged applications, as well. As it started rolling out during the mid 70's, the Mercedes Benz 300D is tucked with a large 3.0 liter displacement and a straight five cylinder normal aspirated indirect injection diesel powered engine. The 80- to 90- horsepower output was a staggering statistic during those times. This became the impetus for engineers and scientists to come up with faster and more powerful internal combustion engines. And by 1982, a turbo diesel engine was developed using a turbocharged engine that produced up to 123 hp. It also has two available shifting options, including the 4-speed automatic transmission and the 5-speed manual transmission system. All these improvements have been made without tarnishing the continued efficiency and reliability

The chassis platform of the Mercedes Benz 300D uses the platform similar to the pioneering W123, considered as the most prolific platform in Mercedes history. Though it ended production in 1985, virtually all of the cars based on the chassis are still on the roads today. This proves the quality and durability of the original design. The legacy of the 300D went on until 1993, but a different design, engine (OM602, a turbocharged inline five cylinder) and chassis (W124) to cope with the new trends in technology that time.

Not only in the performance, reliability and the durability of Mercedes Benz 300D parts and accessories, but ingenuity also lies in the way the Mercedes Benz 300D is designed to make the replacements and restoration convenient. It is a common sight already that every Mercedes Benz 300D part or accessory has been made available with a do-it-yourself kind of instructional manual for guided installation and mounting. Thus, consumers will have a breeze replacing defective Mercedes Benz 300D parts and accessories. In terms of availability, Mercedes Benz 300D parts and accessories can be purchased at the nearest counters of local dealerships or auto parts stores. At the click of a mouse, a Mercedes Benz 300D part or accessory can be readily bought online via online parts stores or dealerships. But having replacements or other forms of upgrade would take the owner a longer time than expected as the Mercedes Benz 300D parts and accessories are built with the toughest materials and are scientifically tested to last a long time for a prolonged driving pleasure of its passengers.

The Mercedes 300 Saloon series had proved to be a popular car and so an improved 300D appeared in 1957 to replace the outgoing 300C model. The 300D looked similar to the old model although the side glass was now pillarless and there was also a new, wrap-around rear screen.

The 300D also benefited from the fuel injection system pioneered in the 300SL sportscar. This increased power and also the cars top speed, now reckoned to be 110mph. The 300D remained in production until 1962.