2003 Mercedes SL-Class Owner's Manual - Page 176

Controls in detail Driving systems Setting the current speed Accelerate or decelerate to the desired speed. Briefly lift or depress the cruise control lever. The current speed is set. Remove your foot from the accelerator pedal. Setting a higher speed Lift the cruise control lever to position 1 ( page 175) and hold it up until the desired speed is reached. Release the cruise control lever. The new speed is set. i Depressing the accelerator pedal does not deactivate Distronic. After brief acceleration (e.g. for passing), the cruise control will resume the last speed set. i If you do not take your foot off of the accelerator completely, the following message will appear in the speedometer display field: DTR override. The distance to a slower moving vehicle in front of you will not be set. Your vehicle speed will then be determined only by the accelerator pedal position. 1 Set speed 2 White DTR indicator lamp E i The vehicle speed displayed on the speedometer can briefly vary from the speed setting on the distronic system. 176