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Year:  1971
Make:  MERCEDES
Model:  300 SEL
Colour:  GOLD
Transmission:  AUTOMATIC
Engine Capacity:  8 CYL.
1971 MERCEDES BENZ 300SEL 3.5 
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1971 MERCEDES BENZ 300SEL 3.5, GOLD WITH TAN LEATHER INTERIOR

The Mercedes-Benz W108 and W109 vehicles equipped with the 3.5L SOHC cast-iron block m116 V8 were produced, starting in late 1969, with the 300SEL 3.5. The 280SEL 3.5 was released in mid-1970, with the 280SE 3.5 following shortly thereafter. The 3.5 was a breakthrough in engine technology for Mercedes-Benz. With a 9.5:1 compression ratio and a redline of 6800 RPMs (unheard of in American V8s of the era), this 3.5L engine equipped with Bosch D-Jetronic EFI produced 200-230HP (estimates vary by source). Even on the conservative side, that equated to 57HP per liter of displacement, while giving nearly 17MPG on the highway. This was also unheard of by American V8 standards.

The 109 Chassis Mercedes Benz vehicles with the 3.5 are some of the most in-demand vintage Benzes to this date. Their popularity is driven by the draw of the 3.5L m116 V8 that can rev up to 6800RPMs and sustain that RPM longer than any pushrod engine, in combination with the classic stylings of the 109 chassis. Although the 4.5 had more power and torque, it did in fact have a lower redline. Combined with a taller rear-end gear ratio and a 3-speed automatic compared to the 4-speed auto found in the 3.5, the 3.5 seems faster than the 4.5 - although the 4.5 is, in fact, slightly quicker off-the-line and has a slightly higher top speed due to its gearing. The 3.5 owners say it is more responsive - due mostly to its gearing and higher-revving engine.


     

 

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