See also:

Interior
The M-Class seats five people on front buckets and a three-place split rear seat that folds to expand cargo space to 81.2 cubic feet. An optional two-place third-row seat increases passenger capac ...

Setting the temperature
2-zone automatic climate control Different temperatures can be set for the driver's and front-passenger sides. ► Turn the SmartKey to position 2 in the ignition lock. ► To increase/ ...

Diesel Power
As if the R-Class' styling didn't make it unique enough, it's also one of the few models in the U.S. with an available clean-diesel engine. The diesel V-6 is rated 25 percent better in EPA-estimat ...