Real MPG: Mercedes-Benz SLK (2011 - 2016)

Number of RealMPGs submitted

22–57

Real MPG

39.3

Average

High quality interior. Three roof options. Offered with 250 CDI diesel engine. Also available with 5.5 litre V8.

Not as good to drive as competition. Optional automatic isn't quick or decisive enough. High list prices. Avoid 18-inch wheels.

Select engine for more Real MPG information:

Engine	Official MPG (NEDC)	Official MPG (WLTP)	Real MPG Avg.	Real MPG %
SLK200 BlueEfficiency	41.5–43.5 mpg	-	34.5 mpg	81%	Submit
SLK200 BlueEfficiency Automatic	43.5–47.9 mpg	-	32.3 mpg	71%	Submit
SLK250 BlueEfficiency	38.7 mpg	-	28.7 mpg	74%	Submit
SLK250 BlueEfficiency Automatic	42.8 mpg	-	31.5 mpg	74%	Submit
SLK250 CDI Automatic	56.5 mpg	-	46.0 mpg	81%	Submit
SLK250 CDI BlueEfficiency	70.6 mpg	-	45.7 mpg	65%	Submit
SLK300 BlueEfficiency	47.1 mpg	-	-	-	Submit
SLK350 BlueEfficency Automatic	39.8 mpg	-	33.8 mpg	85%	Submit
SLK55 AMG	33.6 mpg	-	28.4 mpg	84%	Submit