Test Drive: 2013/2014 Mercedes-Benz GLK350 With Start-Stop

Direct Injection, Diesel and Start-Stop Pump Up MPG. In response to Europe's 2007 legislated carbon emissions reduction rules, Mercedes-Benz and other European automakers began equipping their non-hybrid vehicles with start-stop systems, a relatively low-tech, low-cost technology that moderately improves tailpipe emissions and fuel economy. Even though the U.S. Environmental Protection Agency (EPA) ... Read More...