2009 Mercedes SL-Class Owner's Manual - Page 160

Controls in detail Driving systems Vehicle level control G Warning! To help avoid personal injury, keep hands and feet away from wheel housing area, and stay away from under the vehicle when lowering the vehicle chassis. Your vehicle adjusts its ride height automatically to increase vehicle safety and to reduce fuel consumption. The vehicle chassis ride height is raised or lowered according to the selected level setting and to the vehicle speed. With increasing speed, the ride height is reduced by up to approximately 0.5 in (12 mm). With decreasing speed, the ride height is again raised to the selected vehicle level. These height adjustments are so small that you may not notice any change. The following vehicle level settings can be selected when the vehicle is stationary: Level Use for Indicator lamps Normal For driving on nor- Both lamps mal roads. off Level 1 For driving on rough roads or with snow chains (Y page 234). One lamp on 1 Indicator lamp 2 Indicator lamp 3 Vehicle level control button X X Level 2 For driving on very Both lamps rough road surface on conditions. Start the engine. Press button 3 briefly to change from one level setting to the next. RThe normal level is selected if both indicator lamps are off. RAt RAt Select the level 1 and level 2 settings only when required by current driving conditions. Otherwise the fuel consumption may increase and/or the handling may be impaired. level 1, indicator lamp 1 is on. i The selected vehicle level setting remains stored in memory, even when the engine is turned off and restarted. level 2, both indicator lamps 1 and 2 are on. When the vehicle is at level 2, pressing button 3 will return the vehicle to normal level. 158