2004 Mercedes CLK-Class Owner's Manual - Page 226

Controls in detail Driving systems Activating Distronic You can activate Distronic if you are driving between 25 mph (40 km/h) and 110 mph (180 km/h) the ESP is activated ( page 78) If Distronic has not been activated after pressing the cruise control lever you will see the message --- in the multifunction display. In the following cases you cannot activate Distronic: up to two minutes after starting the engine. when you brake. if you have set the parking brake. if the gear selector lever is in position P, R or N. if ESP is switched off. Setting the current speed Accelerate or decelerate to the desired speed. Briefly lift or depress the cruise control lever. Distronic is activated and the current speed is set. Remove your foot from the accelerator pedal. Setting a higher speed Briefly tip cruise control lever in the direction of arrow 1 ( page 225) to increase vehicle speed in increments of 5 mph (Canada: 10 km/h). The new speed is set. The stored speed is displayed in the multifunction display for approximately five seconds ( page 225), and one or two segments around the stored speed come on, on the speedometer ( page 223). i If you do not take your foot off of the accelerator completely, the following message will appear in the multifunction display: Distronic override. Distronic will not work to maintain the distance to slower moving vehicles in front of you. Your vehicle speed will then be determined only by the accelerator pedal position. 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. 226