2013 Mercedes-Benz GLK-Class Debut: Under the Hood
The base GLK350 uses the same direct-injected 3.5-liter V-6 as the previous model, but power output has been increased to 302 horsepower and 273 lb-ft of torque. The big news under the hood is the addition of a 2.1-liter diesel inline-four engine in the GLK250 BlueTEC 4Matic that produces 190 hp and 369 lb-ft of torque. Mercedes claims this is the most powerful four-cylinder diesel engine ever used in an SUV and will be available in early 2013.