It is very minor but need to go to the dealer. Additionally, find 2014 Mercedes-Benz E250 BlueTEC warranty and reliability information, such as limits on bumper-to-bumper coverage and major components. But the 2014 E250 BlueTEC offers much more than that. The figure below compares the fuel economy of E350 vs. E550 vs. E350 Bluetec vs. E250 Bluetec as provided by FuelEconomy.gov You are right on this. That’s a great strategy if you actually want people to buy diesels. The 2014 E250 Bluetec 4Matic diesel is my favourite of the entire E-class range, and it’s one of the sweetest, most balanced cars I’ve tested in a long time. 2014 Mercedes-Benz E250 BlueTec 4Matic Luckily, the E250 delivers more than enough of an improvement in mileage over the gasoline E350 to justify the higher cost per gallon. As for pricing, the E250 BlueTEC follows the recent Benz trend of being the new base model, starting at $52,325. I do have a 2014 GLK250 Bluetec (also Canadian specs) since sept 2013 and had issue about AdBlue. The most gasoline-thirsty version is the E550 4-matic (excluding E63 AMG from comparison) and the most economical version is the E250 Bluetec that can achieve a 42 MPG in highway driving and 28 MPG in the city. Our 2011 E350 BlueTec moved from zero to sixty in 6.6 seconds and delivered fuel economy of 22 mpg (10.7 l/100 km) city and 33 (7.1) highway. DRIVING THE 2014 MERCEDES-BENZ E250 BLUETEC. It only had 1,000km when it happened. And that’s reason enough for us to like the Mercedes-Benz E-Class even more than we already did. The table below shows all 2014 Mercedes-Benz E250 BlueTEC specs by style, including MPG (fuel economy), transmission details, and interior and exterior dimensions. The Mercedes-Benz E250 BlueTEC's price can go from the low 50s to the low 70s because nearly all of the latest and greatest features are available on the car following the 2014 revisions. Many of these features focus on safety. I went fewe weeks ago for my annual service and problem came back again. It is a programming update that was required.