2008 Mercedes R-Class Owner's Manual - Page 279

Controls in detail Driving systems Warning! G Make sure that no one is near the wheel housing or under the vehicle when you lower the vehicle while it is standing still. Limbs could become wedged into or under the vehicle. For safety reasons, the vehicle can only be lowered with all doors and the tailgate closed. Lowering is interrupted if a door or the tailgate is opened and will continue after the door is closed again. ! Keep in mind that in rough or uneven roads, adjusting the vehicle to a lower level may cause the vehicle underbody to come in contact with the road and result in damage to the vehicle underbody. Always make sure the vehicle has sufficient ground clearance before adjusting it to a lower level. ! Before jacking up the vehicle with equipment that lifts one or more of the wheels completely off the ground, remove the SmartKey from the starter switch. ! Please also note the information in the section on towing ( page 513). i The activation threshold is defined by the set suspension tuning ( page 276). The vehicle's ride height changes by the approximate values given in table below according to the set level: Level Raised Highway Highspeed Ride height + 1.97 in (+ 50 mm) +/- 0 - 0.78 in (- 20 mm) The vehicle lowers to highspeed level automatically when the vehicles speed exceeds 70 mph (112 km/h) the vehicles speed is between 60 mph (96 km/h) and 70 mph (112 km/h) for longer than 20 seconds Warning! G Basic settings Adapt your speed and driving to possible changed driving behavior of the vehicle after changing the vehicle level. The ESP® cannot prevent accidents, including those resulting from excessive speed. The ESP® cannot prevent the natural laws of physics from acting on the vehicle. There are two settings from which to choose: Raised level, for driving on rough roads Highway level, for driving on paved roads in fair or better condition i Obey local speed limits. Use prudent driving speeds appropriate to prevailing conditions. i The third available level is the highspeed level that is set automatically. 278