Mercedes Aims for 45 MPG Highway on New E250 Bluetec 4Matic Diesel Sedan
May 20, 2013 8:20 AM
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Mercedes prepares to crush all rivals
fuel economy wars are heating up
, and we can partially thank (or blame depending on your view point) the U.S. government for increasing fuel efficiency. According to
, Mercedes Benz is looking to significantly boost fuel efficiency for the turbodiesel variant of its restyled 2014 E-Class luxury sedan.
The outgoing 2013 E350 Bluetec features a 3.0-liter V6 turbodiesel that produces 206 hp and 400 lb-ft of torque. It's enough to give the 4,000-lb sedan EPA ratings of 22 mpg city and 32 mpg highway.
However, the new 2014 E250 Bluetec 4Matic gives up two cylinders and a bit of power and torque to significantly boost highway fuel economy. The 2.1-liter, 4-cylinder turbodiesel engine uses twin sequential turbochargers to generate 195 hp and a still impressive 369 lb-ft of torque, however, highway fuel economy skyrockets to 45 mpg.
2014 Mercedes E-Class
Projected city and combined fuel rating are not available, but we expect those figure to rise sharply as well.
The 45 mpg highway rating makes the E250 Bluetec 4Matic even more fuel efficient than the lighter,
less powerful Volkswagen Passat TDI
which has an EPA highway rating of 43 mpg. And as its name implies, the E250 Bluetec 4Matic manages that lofty figure with the added heft of an all-wheel-drive system.
Mercedes has yet to announce pricing for the 2014 E250 Bluetec 4Matic, but the 2013 model starts at a $52,200 and lacks AWD.
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RE: Puts VW's 2.0-liter to shame
5/20/2013 7:30:01 PM
just be aware that there are extra costs associated with modern turbo-diesels that you may not be aware of in the USA.
Most modern, manual gear TDs have a dual mass flywheel - these will go & are not cheap to replace ($1500 probably wouldn't be out of line here in the UK). In the USA with mostly autos this may not be an issue.
Diesel Particulate Filters - again these have a limited life & again aren't cheap ...
Because of the very high pressures that common rail diesels run at injectors will wear out. Again not cheap.
Turbos - much more reliable than they once were but still more fallible than normally aspirated ;) & again replacements aren't cheap ...
If you are doing the mileage to make the fuel savings work for you whilst the vehicle is under warranty then by all means go for a diesel. But if any of the above fail out of warranty it'll cost you all your fuel savings ...
Modern diesels (at least Euro V & VI compliant one) aren't as reliable as the older ones because they are a lot more complicated. & I hate to say it but I suspect that the trend for smaller, direct-injected & turboed (e.g. Ford EcoBoost) petrol engines means that they'll go the same way. :(
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