• Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
This isn't your father's gas-guzzling 450SEL. Mercedes-Benz has been promising a real fuel-efficient version of its E-Class sedan and the German automaker has finally delivered. The new E250 Bluetec diesel will get 45 miles per gallon on the highway, a good bit better than the 39 mpg highway MB said when the E250 BlueTEC concept sedan debuted at the 2009 New York Auto Show.

The oil-burning E250 will also get 28 mpg city (same as the 2009 concept) and will have "best in class" fuel efficiency for a midsize luxury sedan. With a highway mileage figure that's just three miles per gallon less than that of the Toyota Prius, "best" is certainly appropriate. Additionally, MB is talking about "Lanchester balance shafts" and "low-friction roller bearings" as a way to say that the diesel will also be smooth as silk in addition to thrifty on oil.

The eighth generation of the E-Class starts at $53,900, and combines fuel efficiency with sportiness in a diesel engine that delivers 195 horsepower and 369 lb-ft of torque while using its seven-speed 4Matic transmission to reduce fuel use. Heck, even the four-wheel drive version of the Bluetec has a 27/42 mpg split. Check out Mercedes-Benz's press release below and then read Autoblog's First Drive impressions of the regular gas-powered E-Class or this Quick Spin of the E-Class Wagon.
Show full PR text
2014 E250 BlueTEC Sedan Gets 45 MPG EPA Highway Rating

2014 E250 BlueTEC. (PRNewsFoto/Mercedes-Benz USA)

MONTVALE, N.J., Sept. 11, 2013 /PRNewswire/ -- The newest Mercedes-Benz E-Class – the 2014 E250 BlueTEC sedan – has achieved an impressive estimated EPA rating of 45 miles per gallon on the highway and 28 mpg around town. The first diesel E-Class to be available with 4MATIC achieves best-in-class fuel efficiency for a midsize luxury sedan and for the entire industry in the same size range. When equipped with optional 4MATIC all-wheel drive, its fuel mileage numbers are still an impressive 42 mpg highway and 27 in the city. No other diesel sedan offers a better EPA fuel economy highway estimate.

High-Tech Four Cylinder with Balance Shafts
It's clear that the big news for 2014 is the high-efficiency turbodiesel engine that powers the E250 BlueTEC. The all-aluminum, in-line four-cylinder engine makes use of four valves per cylinder and dual overhead camshafts with vane-type variable valve timing, producing 195 hp and 369 lb-ft of torque. To smooth out the inherent vibration of an in-line four-cylinder engine, two Lanchester balance shafts spin at twice crankshaft speed in sophisticated, low-friction roller bearings. During normal operation, the advantages of this two-stage turbocharged system can be felt – no turbo lag, fast throttle response, a broad torque curve across the entire engine speed range and noticeably improved performance. What's more, the 369 lb-ft of torque is readily available at 1,800 rpm.

BlueTEC Refinements
Fuel pressure for the BlueTEC direct fuel injection system is 2,000 bar or 28,400 pounds per square inch, which makes possible even more power and lower exhaust emissions. Higher ignition fuel pressure means the four piezo injectors can be adjusted even more precisely as engine load and speed change. This system places the four-cylinder diesel at the head of the field when it comes to diesel engines for passenger vehicles.

AdBlue Injection
To ensure the E250 BlueTEC meets exhaust emission regulations in all 50 U.S. states, the BlueTEC system uses AdBlue injection to make the diesel as clean as a state-of-the-art gasoline engine. Newly accessibly through the fuel filler door, a water-based urea solution, AdBlue, is carried in its own small tank and metered into the exhaust in minute quantities, so the tank only needs to be refilled during routine scheduled maintenance. When AdBlue is injected into pre-cleaned exhaust gas, ammonia (NH3) is released, converting nitrogen oxides into harmless nitrogen and water in a downstream catalytic converter. Called SCR, for selective catalytic reduction, this process creates the most effective method of exhaust gas after-treatment currently available.

4MATIC Four-Wheel Drive Sets a Trend
As modern all-wheel-drive systems become more refined, they are becoming increasingly popular, especially in the luxury car market. With negligible weight and fuel-efficiency tradeoffs, full-time four-wheel drive provides year-round traction and stability benefits on both wet and dry roads. Optional on the E250 BlueTEC, the latest Mercedes-Benz 4MATIC system is cleanly integrated into the 7-speed automatic transmission so it fits right into the standard body and utilizes the existing front suspension. Fuel efficiency has been improved, due to a number of innovative measures that minimize the energy needed to turn the extra gears and shafts. Mercedes-Benz expects an approximate 50/50 national installation rate between rear-wheel drive and 4MATIC on the E250 BlueTEC, keeping in mind northern States usually order and stock nearly 100% 4MATIC when available on passenger cars.

Industry-Leading Active and Passive Safety: Intelligent Drive
Mercedes-Benz focuses on real-world safety with the goal of accident-free driving, and the new E-Class offers more than 30 standard and optional active and passive safety systems under the Mercedes-Benz Intelligent Drive comfort and safety portfolio. For example, the Driver Assistance Package, available for $2800 in the 2014 E-Class sedan, wagon, coupe, and cabriolet, offers the following content:
• DISTRONIC PLUS with Steering Assist: radar-based cruise control system with semi-autonomous steering inputs that can work from 0-124 mph depending on road conditions.
• PRE-SAFE Brake with pedestrian detection: radar and stereo cameras detect vehicles and pedestrians in front of the vehicle and can adjust braking according to the situation, and apply full brakes if necessary
• PRE-SAFE PLUS: rear-facing radar that senses possible rear collisions and prepares the vehicle to help reduce the injury risk for the passengers in a rear-end collision
• BAS PLUS with Cross Traffic Assist: reads cross-traffic encounters with stereo cameras and adds appropriate brake assistance
• Active Lane Keeping Assist and Active Blind Spot Protection: assists by corrective one-sided braking
E250 BlueTEC: The Base Model in the E-Class Portfolio
The new E250 BlueTEC sedan is the price-leader in the E-Class family, priced competitively at $51,400 while offering a clean diesel powertrain. Please find below the following E-Class portfolio and overall pricing, which excludes the 2014MY destination & delivery price of $925:
• E250 BlueTEC sedan (rear-wheel drive) - $51,400
• E350 sedan (rear-wheel drive) - $51,900
• E350 Coupe (rear-wheel drive) - $52,200
• E250 BlueTEC 4MATIC sedan - $53,900
• E350 4MATIC sedan - $54,400
• E350 4MATIC Coupe - $54,700
• E400 Hybrid sedan (rear-wheel drive) - $56,700
• E350 4MATIC wagon - $58,600
• E550 Coupe (rear-wheel drive) - $59,000
• E350 Cabriolet (rear-wheel drive) - $60,200
• E550 4MATIC sedan - $61,400
• E550 Cabriolet (rear-wheel drive) - $67,300
• E63 AMG 4MATIC sedan - $92,770
• E63 AMG S-Model 4MATIC sedan - $99,770
• E63 AMG S-Model 4MATIC wagon - $102,370
Aside from the E250 BlueTEC sedan, other 2014MY Mercedes-Benz U.S. models with BlueTEC clean diesel include the GL350 BlueTEC 4MATIC (V6), ML350 BlueTEC 4MATIC (V6), and GLK250 BlueTEC 4MATIC.

About Mercedes-Benz USA
Mercedes-Benz USA (MBUSA), headquartered in Montvale, New Jersey, is responsible for the distribution, marketing and customer service for all Mercedes-Benz products in the United States. MBUSA offers drivers the most diverse line-up in the luxury segment with 12 model lines ranging from the sporty C-Class to the flagship S-Class sedans and the SLS AMG GT.
MBUSA is also responsible for the distribution, marketing and customer service of Mercedes-Benz Sprinter Vans, and smart products in the U.S. More information on MBUSA and its products can be found at www.mbusa.com, www.mbsprinterusa.com and www.smartusa.com.


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    • 1 Second Ago
  • 76 Comments
      dukeisduke
      • 1 Year Ago
      Amazing. It's a shame you'll have to shell out $51,400 to get one. And too bad the other automakers aren't this interested in diesels.
        muspod
        • 1 Year Ago
        @dukeisduke
        I agree it's a shame. But, if your fuel bill is cut in HALF that's worth $200 a month. You may still be ahead. Distance traveled depending
          bonehead
          • 1 Year Ago
          @muspod
          purchasing new cars to reduce fuel bills is a futile financial effort. Your biggest expense with automobile ownership is depreciation. And with diesel being more expensive than lowgrade you are not going to double your mileage unless your driving a truck at the moment.
        redgpgtp97
        • 1 Year Ago
        @dukeisduke
        If mercedes cars are still built like those early diesels like the 240d, 300d, 350sdl, etc., and can reach 300-400k miles then $51k may not be a bad price at all.
          express2day
          • 1 Year Ago
          @redgpgtp97
          The smaller 300D was much more expensive, adjusting for inflation, back then too. The base price of a 1985 300D with a lot less standard equipment would be over $70K in current dollars.
          NightFlight
          • 1 Year Ago
          @redgpgtp97
          They are, mechanically they are bulletproof and the body is BEYOND solid. The problem is the electrical systems are outrageously advanced and complicated.
      John Fish Kurmann
      • 1 Year Ago
      Autoblog writers should be required every time they write a post touting the MPG of a diesel model to note that diesel is about ~18% more energy-dense than gasoline, so you can't simply compare the MPG of a diesel model to a gasoline model. It's energy use that matters, not gallons of fuel consumed. The best hybrids are far more efficient than the best comparably-sized diesels.
        Buckus Comments
        • 1 Year Ago
        @John Fish Kurmann
        I have to agree. If we can make an allowance for Ethanol/Methanol/CNG having lower energy-density, then we can sure make an argument that we should make allowances for Diesel having higher energy density.
        sparrk
        • 1 Year Ago
        @John Fish Kurmann
        BMW 520d vs Prius , the big diesel is better and a lot more fun to drive than the boring, ugly hybrid. And it does it with better fuel economy : http://www.autoblog.com/2008/03/23/bmw-520d-beats-prius-in-gas-mileage/
          Buckus Comments
          • 1 Year Ago
          @sparrk
          Hybrid's don't have to be less fun to drive, they're designed that way for maximum efficiency.
        The Wasp
        • 1 Year Ago
        @John Fish Kurmann
        While I agree that Autoblog and many posters here are excessively diesel-zealous, I disagree. I don't think energy per gallon is a relevant metric for most drivers. However, I do think cost is an oft-overlooked factor that most drivers do, indeed, care about. In addition to miles per gallon, it would be beneficial to also note average/estimated fuel cost per mile. This measurement would put hybrids, gasoline and diesel vehicles (and even other fuels) on a fairly level playing field without having to understand chemistry and thermodynamics, etc.
      Avinash Machado
      • 1 Year Ago
      Quite impressive for such a big car.
      Joey
      • 1 Year Ago
      Suddenly the 24/38 mpg for the new A6 and A7 TDIs don't seem as impressive anymore. Granted they are 3.0L V6s and produce a bit more power and torque (240hp/428ft-lbs vs. 195hp/369ft-lbs).
      autopoopblog
      • 1 Year Ago
      No wagon, don't care. The old headlights and grill looked better. This front end looks like ****.
        PJPHughes1
        • 1 Year Ago
        @autopoopblog
        Totally disagree on the style...but agree with you on the diesel wagon. Saw a new E350 wagon yesterday and the updates looks so much more modern. Well done, MB
      Buckus Comments
      • 1 Year Ago
      Cue the "45Mpg...HAHAHAHA who needs a Prius???" crowd. Does 50Mpg City mean anything to you? That handily trumps the 28 MPG city the diesel is touting. If all you do is drive moderately on flat highways with no traffic, sure, fuel economy will be nearly the same as a Prius. But we all know that's not how driving works for most people.
        Kristian Alekov
        • 1 Year Ago
        @Buckus Comments
        I get 50mpg in a 2013 VW Passat. I can fit a Prius in my trunk. And keep in mind that city vs. highway is a two way street. I for one drive more on highways than in the city. Also city traffic is considered stop and go congested streets. Most real world driving actually fall along the "highway" category - driving in the 40 mph to 50 mph range with stops here and there on stop lights. That's about 90% of America...
        Joe
        • 1 Year Ago
        @Buckus Comments
        Flat roads won't make that much difference on a diesel. Diesels have enough torque they don't struggle on hills and don't need to downshift for passing. However you drive on the highway it's pretty stable fuel economy. If you're not spending more than 20-30 percent of your time in stop and go traffic you'll likely never drop below 40 mpg. You're also comparing a MB to a Toyota. If all the driver cared about was fuel economy then, yes, the Prius is perfect. MB drivers want more.
        autopoopblog
        • 1 Year Ago
        @Buckus Comments
        Cue the retard.
      mikeybyte1
      • 1 Year Ago
      Did you actually compare it to a Prius?
      The Wasp
      • 1 Year Ago
      Is the Lincoln MKZ Hybrid not in the same class as this? It has an EPA rated 45mpg highway, 45mpg city. That seems to be the combined best in class mpg for midsize luxury cars.
        mchica
        • 1 Year Ago
        @The Wasp
        MKZ and an E-class? Really? Why not include the Toyota Prius which blows both of them away if mileage is your only measure?
        mark
        • 1 Year Ago
        @The Wasp
        I think Lincoln is labeled more as a premium car. Kinda like Acura. But I could be wrong I don't really follow Lincoln that much so I don't know what they consider their brand to be.
          The Wasp
          • 1 Year Ago
          @mark
          That's a subjective assessment. I don't know what authority M-B is citing to define the 'mid-side luxury' class, but most organizations would include the MKZ on that list. I wouldn't be surprised if M-B only compared their car against competitors in Europe -- which some people would certainly deem to be fair. However, here in the US, where this is being posted, the MKZ is generally accepted to also be a mid-size luxury car (whether you like it or not). Winnie, as for your final point -- if M-B specifically said diesel miles per gallon, I would not object. But they didn't. And the MKZ, according to EPA estimates, will get superior combined and city MPG and equal highway MPG.
          Winnie Jenkems
          • 1 Year Ago
          @mark
          You are correct. Lincoln is not a "luxury" brand, they admit it themselves. They are re-skinned FWD-based Fords; the brand is seriously behind the top luxury automakers in terms of product and materials quality. And while the MKZ does get good fuel economy, there is no diesel offering at Lincoln. Not really an apples to apples comparison; Lincoln has a very long way to go before it can be.
        Winnie Jenkems
        • 1 Year Ago
        @The Wasp
        No. The MKZ doesn't hold a candle to this.
          Winnie Jenkems
          • 1 Year Ago
          @Winnie Jenkems
          Yes, Chris, it was.
          mchica
          • 1 Year Ago
          @Winnie Jenkems
          MKZ Hybrid is clocked at 8.2 seconds 0-60 and has much les interior volume as well as fewer amenities. And then there's that RWD vs FWD thing and which one will outhandle which. Lincoln is a class below Mercedes, just like Cadillac, Acura, Infiniti and Hyundai
          chrismcfreely
          • 1 Year Ago
          @Winnie Jenkems
          That was not the question.
          The Wasp
          • 1 Year Ago
          @Winnie Jenkems
          @Winnie No, it wasn't. In this case, M-B and I both used 'class' in the sense as if it were an industry standard. If it were, however, used in the sense that you suggest, then it would be clear to me that the MKZ is indeed not in the same class as the E250 on account of the MKZ Hybrid's clearly superior EPA estimated fuel mileage. Surely you'll agree.
      Kristian Alekov
      • 1 Year Ago
      It's sad to see how much resistance Diesel cars are seeing in the USA. Europeans are a lot more concerned about MPG and fuel cost, I can guarantee you that if there was a better way than Diesel, they would've been utilizing it by now. Just couple points to consider: Hybrid only works on very compact small cars. Currently, any hybrids attempted on large luxury sedans or SUVs return almost identical results as the gasoline versions, with less trunk space, higher entry price, and issue of replacement batteries and etc in the future. Diesels on the other hand work miracles in large luxury sedans. Audi A8, Mercedes S, BMW 7, and etc have long been using Diesel engines and are even considered better than the gasoline counterparts, many articles are available on that. So for anyone that is economy minded, but still wants large size and luxury, hybrids are not really a viable option. Second thing is, city vs highway mpg. Most people who have never owned a diesel always complain about the horrible mpg of city driving diesels. The reality is the EPA underrates the diesel numbers big time, and if you check fuely you would notice that the real world mpg of almost all diesel is much higher than the given estimations. I drive a 2013 Passat TDI and average over 45mpg on mixed driving. I've noticed that the worse number you would find for that car on mixed driving are in the high 37-38mpg, nothing like the high 20s as the ratings suggest. Now to the real comparison points - the reason why Diesel vehicles are so good is not only that they have enormous amounts of torque, which is simply more fun to drive than a hybrid, they are usually larger and more luxurious, usually have better miles per tank (usually 600-800 miles per tank), but also have much longer lifespan, and get better residual values. What that means it, by the time your hybrid has 100k or 200k miles, and you are ready to throw it away or replace the batteries with another $10k battery pack (at that point your car is worth about half that, $5k perhaps, imagine spending $10k on batteries now), the diesel vehicle has many buyers interested in buying it at about 50% of it's original value. 200K miles on a diesel is nothing, and it's normal to see the with half a million miles in Europe, with no major issues. Cabs come to mind as an example. So the comparison is not that simple, not really "I get 50mpg in my Prius in the city while you get 40mpg in your Mercedes/VW, whatever" and end of story. No, I can drive my car twice as long, have no worries about replacing anything major, and have a line of buyers for it paying me $20k for it when it has 200K miles, while your hybrid will be pretty much done and you will be buying another one, produced with just as much plastic, oil, and energy as the first one you drove. In the long run, the savings on the diesel at the pump are miniscule in comparison to the savings you get from resale value, maintenance, etc.
      Rotation
      • 1 Year Ago
      Very mpg. With 195HP it should be reasonably performing too. I don't really see it selling well at all after the first year though. Who in the US buys a $60K E-class and then says "I'll take the version that saves me a few bucks on gas"?
        Merc1
        • 1 Year Ago
        @Rotation
        Plenty of people. Same ones that have bought Mercedes diesels for years. Sales of cars like this don't just drop off after one year lol. M
        montoym
        • 1 Year Ago
        @Rotation
        I see an awful lot of M-B diesel SUV's, probably about 50% honestly. So, I guess a lot more than you think.
          Rotation
          • 1 Year Ago
          @montoym
          This isn't an SUV. People don't buy the SUVs with the same parameters as sedans. And around here, were Mercedes sells a lot of vehicles, I'd say the Diesel uptake rate on the SUVs is closer to 5% than 50%.
          montoym
          • 1 Year Ago
          @montoym
          I'm looking at it from a price standpoint. If someone's not going to care about fuel economy for a $60k E-Class, why would they care for a $60k (or more) ML or GL? I mean if they are buying it because it saves them a few bucks on gas, wouldn't that be even more important to someone who buys a vehicle that achieves worse mileage (sedan vs. SUV)? Secondly, while my anecdotal take rate on M-B diesels might be on the higher end, yours is certainly on the lower end. Nationally, the diesel vs. gasoline breakdown for M-B's SUV's is somewhere in the middle, at about 30%. Additionally, M-B's diesel sales figures are increasing as well, their most recent sales figures (Aug. '13) show that BlueTec sales have increased 104.7% compared to the same month last year. Likely due to the addition of the BlueTec GLK and S-Class which weren't available this time last year.
      FIDTRO
      • 1 Year Ago
      Nice, and you get a quality luxury car, unlike some Prius garbage.
      Harry Chin
      • 1 Year Ago
      I really like mercedes right now, releasing the affordable CLA at 30k, and the cool GLA , a slight price decrease for there NEW S class, now this awesome sedan that gets 45MPG! ..unlike BMW who is just focusing on how many different model numbers and letter combinations can we come up with.... x4 , 4 gran coupe?, wtf...
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