2003 Mercedes CL-Class Owner's Manual - Page 190

Controls in detail Driving systems Lane changing Narrow vehicles Active Body Control (ABC) The ABC system automatically selects the optimum suspension tuning and ride height for your vehicle. Suspension tuning The suspension tuning is set according to: your driving style Distronic has not yet detected the vehicle changing lanes. There will be insufficient distance to the lane changing vehicle. Because of their narrow profiles, the vehicles traveling near the outer edges of the lane have not yet been detected by Distronic. There will be insufficient distance to the vehicle ahead. road surface conditions the vehicle loading your choice of suspension style, "sporty" or "regular", which you select using the ABC switch The selected suspension style is stored in memory, even after the key is removed from the starter switch. 190