Standard - fit is comfort suspension with 15 mm lower steel springs. (slashgear.com)
It also features available off - road comfort suspension, which increases ground clearance by an extra 1.2 inch for improved capability and a higher seating position. (loebermotors.com)
Those who do wish more comfort, have the Avantgarde package on hand, with an adaptive comfort suspension lowered also by 15 mm and 17 - inch rims or the pretty expensive Airmatic suspension, because it can only be purchased together with one of the exterior package lines, Avantgarde or Exclusive. (mercedesblog.com)