The Mercedes-Benz S-Class W108/109 : Models were introduced in 1965

 Mercedes-Benz 300 SEL 6.3 of the 109 model series. Close-up shot of the sequence of numbers, referring to the displacement, on the right on the rear lid from the year 2025. (Photo index number in the Mercedes-Benz Classic Archive: D856854)

• Debut in August 1965: The 108 model series redefines automotive luxury – 109 follows soon after
• Stylish concept by Paul Bracq combines harmonious design and high functionality
• With V8 and electronic fuel injection, ushering in a new era of engine manufacturing from 1969 on
• Detailed information on these direct predecessors of the Mercedes-Benz S-Class in Classic M@RS
• Genuine spare parts: Windscreens in three versions are available again

Fashion, architecture and automobiles: the 1960s are a decade of change and innovation. The design is characterised by modern, understated aesthetics with clear lines and functional shapes. As this era kicks off, Mercedes-Benz presents the new luxury class model: the 108 model series with types 250 S, 250 SE and 300 SE are in the spotlight at the International Motor Show in Frankfurt am Main (IAA) in 1965. The 300 SEL follows in 1965, featuring an extended wheelbase and a technically outstanding, comfortable air suspension, and is given its own model series number: 109. As classics, these two predecessors of the Mercedes-Benz S-Class have long been acclaimed and are held in high esteem. 

A milestone in modern automotive design

The developers and designers of the new Mercedes-Benz luxury class generation have delivered the best and the finest once again. Straight lines, a low roofline and extensive, elegantly shaped glass elements: in his design of the 108/109 model series, stylist Paul Bracq combines functionality, comfort and elegance in a vehicle which is harmonious and very individual at the same time. He emphasises the horizontal, gives the clear lines vitality and masterfully balances proportions. The radiator grille, which is typical of the brand, now has an almost square format. The result remains convincing to this day: model series 108/109 appear attractive and modern without falling victim to the whims of short-term fashion. 

With their outstanding design, high levels of driving comfort and generous dimensions which impart a sense of unimpeded space, these vehicles go on to become the best-selling luxury saloon of their time. They stand in the unique Mercedes-Benz tradition of elegant luxury class vehicles, which bear the designation S-Class with the successor model series 116 from 1972 on. Ever since, they have been a synonym for innovative and individual luxury automobiles. This is currently embodied by the 223 model series from Mercedes-Benz, Mercedes-AMG and Mercedes-Maybach. It consistently continues the tradition.

Best technology for safety, performance culture and driving comfort

All versions have disc brakes all round and brake force limiters on the rear axle. In addition, a hydro-pneumatic compensating spring located there balances the rear in the case of heavy loads. Initially, six-cylinder engines are used. In the types with an “E” in the designation, complex six-piston pumps handle fuel allocation. In 1969, the company presents the 300 SEL 3.5 with the new V8 engine M 116 with 3.5-litre displacement and Bosch D-Jetronic fuel injection. Some export markets, such as the USA, receive the sister engine M 117 with 4.5-litre displacement. It is the first time that large-scale-produced V8 engines are used at Mercedes-Benz. 

Top model with the V8 drive train of the Mercedes-Benz 600

As early as March 1968, the top model 300 SEL 6.3 with the powerful V8 drive train of the representative vehicle Mercedes-Benz 600 (W 100) secures an advantage in terms of prestige which cannot be matched. It is the predecessor of later power saloons: with 6.3-litre displacement, it achieves driving performance on a level with contemporary sports cars. A total of 6,526 customers opt for this particularly powerful version, showing that luxury, performance and sportiness align perfectly at Mercedes-Benz. 

From 1965 to 1972, the 108/109 model series are part of the sales range, and statistics indicate over 382,000 vehicles sold – an impressive number for this generation of the Mercedes-Benz luxury class, and an outstanding success for the market segment at that time. This is also the reason why so many of these vehicles are still available today. 

After a considerable increase in price about ten years ago, the high price levels for vehicles belonging to the 108/109 model series have risen slightly even further. For example, a 280 SE 3.5 in good condition (Grade 2) has now surpassed the EUR 30,000 mark, while the 300 SEL 6.3, as the top model, plays in a league all its own, not only technically but also regarding value: top vehicles (Grade 1) are already going for over EUR 90,000.