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Mercedes-Benz 3.5-litre V6 specifications

By Alborz Fallah |

Alongside the new Mercedes-Benz 4.6-litre twin-turbo V8, Mercedes has also released details of a new 3.5-litre V6 engine set to power a varient of new Mercedes-Benz vehicles.

Despite being naturally aspirated, the German company says it was built using a modular design, hence it can be configured with turbochargers for future use. Putting out 225 kW and 370 Nm of torque, the biggest difference between the new V6 and the one it replaces is a reduction in the V-angle between the cylinder banks from 90 degrees to 60 degrees.

In layman’s terms the change in design has led to a noticeable reduction in vibration, which further enhances driver comfort.

The engine is expected to make its fist appearance in the Mercedes-Benz S 350. According to figures released by the manufacturer, the S 350 will reduce its fuel consumption to just 7.6 litres per 100 kilometres (CO2 emissions: 177 g/km), a 24 percent improvement over the outgoing V6 (10.0 l/100 km).


 
  • Steve-Poyza

    The 3.0 inline-six twin scroll turbocharger still has more torque. Although I guess with one or two turbochargers this would have the power and torque advantage.

    • Andrew M

      Whats interesting is that they have straightened up the cylinders which makes it closer in configuration to an inline 6.

      Why dont they just go the rest of the way like BMW and make an inline motor

      • Steve

        Package space

        • lawrence

          I think inline 6 of same displacement and same compression ratio will have more power than V6.

          • J

            Yep – slightly, all things being equal. I6 requires no balance shafts, which is a a small load on the engine.

          • Andrew M

            And on top of that Torque will be up

  • Deco

    7.6l/100km in an s-class. wow….

  • Tom22

    Very impressive fuel economy figures so so power figures.

    For Comparisons sake Ford claim the new v6 Mustang will use just 7.6L/100km while providing 224kw of power from its 3.7L V6.

    • Shak

      American mileage configurations are very different to the meausrement we use, so you should take them with a grain of salt.

    • Frenchie

      Same as the 2011 Camaro. 7.6l/100km is highway, similar to Camaro. What is amazing with this Merc engine is they are claiming 7.6l/100km combined! What is the highway figure? The CO2 emission is pretty incredible to 177g/km. Are they using a 8 speed auto?

  • Simon

    “In lamen terms” that was a pretty lame statement not to mention spelling!

    • Hung Low

      Bit sensitive today Simon? I guess you don’t make mistakes?

      I am skeptical about the fuel economy in real life conditions, but anything close to the claimed figure is a remarkable result!

      • Simon

        Maybe Hung,
        yes I make mistakes, some of them painful.
        Irrespective, I expect correct grammar and punctuation from journalists.

        • Hung Low

          Well I am a bit more acceptable in this case because;

          a) It is a free site
          b) Articles are produced numerous times daily
          c) The CA team is comparatively a small operation without a editor in chief I guess?

          Obviously if this was a common trend, I am sure there are plenty on here to highlight the fact!

  • Simon

    The 3.6L R36 engine is impressive with 220KW and 350NM @ 10.7L/100.
    This trumps it well and truly. Nice work Merc.

  • Hung Low

    I wonder if these new engines are a development from the new alliance MB has with Nissan and Renault?

    Changes like the 60deg angle bank of the V6, modular design etc are what Nissan’s VQ series have had for some time now.
    The torque figure of this engine is also very impressive!

  • noD

    Re comments about straightening up the engine. An inline 6 has crankpin angles of 120 degrees which gives an even firing angle of 120degrees. The usual angle of the V cylinder bank on a V6 is 60 degrees which means that a 120 degree crank can be used crankshaft can be used with two conrods per crankpin, one for each bank. This give uneven firing angles but each bank is treated as a single 3cyl engine joined by a single crankshaft. There have been a number of 90 degree V6′s with uneven firing angles such as the early Buick. It is common to produce crankshafts for V6 with individual crankpins for every cylinder where the crank angle is set to produce an even firing angle. To get a 120 degree firing angle with share crank pins it is necessary to have a V of 120 degrees. One of the unusual angles is the V6 Opel engine used in the V6 Vectra and some SAAB models 54 degrees with individual crankpin angles to give 120 degree firings. I think that the decission to pick a specific angle has to do with engine compartment length/width and/or bonnet line height. If properly engineered I think any of them can be smooth reving. As for power, there is no logical or physical reason that an inline 6 or a V6 should be inferior as regards power unless we are reverting to carburettors to supply the fuel. Then a V6 could be at a disadvantage but in any case any engine that had reverted to carburettors would be down on power since too different commodoties have to with different properties have to flow through a compromise manifold.

    • Hung Low

      Mate, all you had to say is that a V6 is inherently unbalanced from the odd number of piston’s on each bank(end to end vibration). To get around this imbalance engineers use a 6-throw crankshaft to give equal firing intervals of 120deg!

      Mercedes used balance shafts in their older 90deg V6 to get around some of the inherent imbalance problems. All and all you cannot beat an In line or Boxer 6 for smoothness. The V6 design is a packaging compromise and this 60deg V6 was pioneered by Lancia back in the 50′s!

  • Shak

    I wish mainstream brands could afford such nice engines as these. Adn by mainstream i mean not charging $60k for a four cylinder.

  • Valet Dabess

    i feel like getting a mb!

  • Frenchie

    This is almost the same as the LLT engine in the VE commodore. The same engine thats in the 2011 Camaro produces the same as this merc engine.

  • MB

    The key is the emmission figures

    • Andrew M

      and economy

  • AAA

    This well and truly trumps the Aurion’s 3.5 V6 201KW (maybe slightly more with RON 95 or 98). But wonder which V6 is smoother and more durable?

    • Hung Low

      Silly comparing an engine from a $30k vehicle with one from 3x its price! Perhaps the D.I version fitted to the Lexus is a better comparison!