• Aug 25, 2009
Europe's Mercedes-Benz S 320 CDI BlueEfficiency began this year as the most frugal S-Class available. With 235 horsepower and 398 pound-feet of torque, 31 mpg, and S-Class luxury, it's a fine runner if you want to have it all without grenading your treehugging credentials. But hang on – new reports are now popping up suggesting that Mercedes will soon up the frugal luxury stakes with a new S 250 CDI BlueEfficiency – the first S-Class with a four-cylinder engine.

According to the rumors, it will use the 2.2-liter, twin-turbocharged diesel four-pot fitted to the E- and C-Class, putting out 224 horsepower and 368 lb-ft of torque. The obvious sacrifice in sheer grunt and top end ought to be made up for by the mileage, which is predicted to be 35 mpg. To keep the four- and six-cylinder engines from being too close to one another, the six is said to grow in output to 285 hp and 516 lb-ft, and that should spell the end of the eight-cylinder S 450 CDI engine.

[Source: Auto Internationaal (translated) via 4WheelsNews]


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    • 1 Second Ago
  • 33 Comments
      • 5 Years Ago
      It'll do 0-60 in about 7.5 seconds, which is fast enough and it'll have a top speed of about 145-150 mp/h. And i find it laughable that americans laugh at that seeing as most of the cars on sale there are limited to 130mp/h.
      • 5 Years Ago
      The first time you start this thing, it would be all over for you, a four cylinder is the most awful motor configeration imaginable from a sound and vibration standpoint (except in the new Yamaha R1 crossplane 4 cylinder bike engine) and only should be used in lesser cars.
      • 5 Years Ago
      They'll have enough room in the engine compartment to add a butler's living quarters and a small kitchen.
        • 5 Years Ago
        ...both of which are expected appointments for vehicles in this class.
      • 5 Years Ago
      just hope they put this engine in the C-class and maybe some other smaller cars
      if 35mpg in a S class, the C-class should get 45mpg and the power will be adequate to not make you wonder why your mercedes is a slow poke
      • 5 Years Ago
      you're buying an extremely luxurious car, you don't need extreme performance. although that car is very heavy, that tiny engine won't do it much good.
      HotRodzNKustoms
      • 5 Years Ago
      With a zero to sixty time somewhere between never and eventually. Watch as the 200D blast past you like a rocketship!
      • 5 Years Ago
      Its my theory that the bigger engine people have in there car, the slower they generally go. And if the diesel 6 were to have 285hp, 516lb/ft torque (is that a type? Should it be 416lb/ft?), I could see American S-class owners going for it. Torque better than their 5.5.
      • 5 Years Ago
      If I could afford an S-class Mercedes, I wouldn't give a darn about the mileage.

      James, fetch my coat, bring round the S63, and tell the club I'm on my way for dinner.
        • 5 Years Ago
        Yeah cuz you can only think with your wallet eh? f-tard
      • 5 Years Ago
      Hmm, better mileage than the S400 hybrid.
      • 5 Years Ago
      and this is from a diesel no less.
      • 5 Years Ago
      0-60sec in ??? Tank capacity? And will it be available here in US?
        • 5 Years Ago
        I think there's no way Mercedes would release a 4 cylinder S-Class in the US.
      JDM Life
      • 5 Years Ago
      0 - Top speed in FOREVER.
        • 5 Years Ago
        @JDM Life
        I don't see the relevance of top speed in a sedan that's designed for non-track use. It's a friggin S-Class-- do you think any of the whitehairs driving it are willing to push it into triple digits anyway? I would argue that acceleration is the more important figure for everyday use, and while top speed benefits from horsepower, acceleration benefits from torque. And force-fed diesels are all about torque.

        What I really am interested in is this engine mated to a 6-speed manual in the C-Class. Now that would be interesting.
        • 5 Years Ago
        @JDM Life
        Well if you're driving on the autobahn that top speed might actually be important if you ever want to get into the left lane.
        • 5 Years Ago
        @JDM Life
        This comment is even funnier coming from a Japanese Domestic Market fan. Japan is where the modern underpowered car was invented, and until very recently, their 0-60 times are measured with calendars, not watches.
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