Original well-preserved flagship of the W126 series with traceable provenance, US first delivery, and the characteristic 3.0-liter inline-six turbo diesel engine.
Offered is a rare and exceptionally original Mercedes-Benz 300 SDL Turbo Diesel in the long-wheelbase version (W126 LWB), built in December 1986 as a 1987 model year for the US market. The vehicle impresses with its documented history, high originality, and an exceptionally well-preserved condition. The car was imported from the United States, now carries official European Historic status (VS), and has passed its technical inspection (CSDD) without any issues – valid until April 2027.
The Mercedes-Benz W126 is still considered one of the most important S-Class generations ever built. Over 818,000 units were produced between 1979 and 1991 – yet the 300 SDL stands out as a particularly rare specialty: only around 13,830 units of this variant left the factory, exclusively intended for the US market.
The 300 SDL combined the luxurious long-wheelbase S-Class body with a highly advanced 3.0-liter inline-six turbo diesel engine (OM603) for its time. The result was an exceptionally refined touring vehicle – economical, durable, and still appropriately prestigious. For many enthusiasts, the W126 represents the peak of German engineering: solidly built, uncompromising in quality, and with a level of substance that often surpasses modern standards.
With the growing appreciation for classic S-Classes, rarer variants such as the 300 SDL are increasingly sought after by collectors and enthusiasts – especially when, like this example, they come with a traceable history and untouched originality.
The vehicle presents itself in solid, original body condition with no significant visible corrosion. The underbody is also in good condition. A special detail that underlines the car’s authentic history is the still-present original access stickers from Hanscom Air Force Base – silent witnesses of its first ownership phase and a feature rarely seen on another W126 of this kind.
The interior is exceptionally well preserved. The original leather upholstery and wood trim are in excellent condition. The dashboard shows no cracks – a detail that is far from standard in US vehicles of this era. Overall, the cockpit conveys the understated solidity for which the W126 is still celebrated today.
Under the hood sits the well-known 3.0-liter turbo diesel engine (OM603), renowned for its durability and smooth operation. According to the information provided, the engine runs flawlessly. The engine bay appears complete and remains in original condition, without any visible modifications. The successfully passed technical inspection (CSDD) without remarks further confirms the good mechanical condition and full roadworthiness of the vehicle.
The provenance of this 300 SDL is exceptionally well documented. The vehicle still retains its original US title from the state of Massachusetts. The first owner was Jon Soligan, a retired Major of the United States Air Force with an distinguished military career. His family also includes a son who rose to the rank of Major General in the US Air Force. This military background, combined with the preserved Air Force base stickers, gives the vehicle an authentic historical character rarely found in comparable W126 models.
Included are the original US title (Massachusetts), import documents, and the European registration with official Historic status (VS). The technical inspection (CSDD) was passed without remarks and is valid until April 2027. A personal inspection is recommended to fully appreciate the originality and condition of the vehicle.
This Mercedes-Benz 300 SDL Turbo Diesel is far more than just a well-preserved W126. It is a documented piece of automotive history – a rare variant with traceable provenance, original condition, and a background that is exceptional within the classic car segment. With only around 13,830 units produced worldwide, the 300 SDL is already one of the rarest W126 variants; combined with its documented first ownership, preserved US title, and authentic details, this example represents a particularly attractive opportunity for collectors who value originality and history over mere cosmetic perfection.
There are cars that need restoration to impress – and there are cars like this 300 SDL, which impress precisely because they were never restored. The small Hanscom Air Force Base stickers on the window, the uncracked dashboard, the untouched leather – all of this tells a story that no restoration could ever replicate. Anyone who has sat in a well-preserved W126 knows why this generation is often called the “last real S-Class.” This one also has something you cannot buy: a past. And that is exactly what makes it special.
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