2006 Mercedes R-Class Owner's Manual - Page 266

Controls in detail Driving systems Setting current speed Accelerate or decelerate to the desired speed. Briefly lift 1 or depress 2 the cruise control lever. The current speed is set. Remove your foot from the accelerator pedal. 1 Setting current or higher speed Adjustment in 1 mph or 5 mph increments (Canada: 1 km/h or 10 km/h) 2 Setting current or lower speed Adjustment in 1 mph or 5 mph increments (Canada: 1 km/h or 10 km/h) 3 Canceling cruise control 4 Resuming to last set speed The cruise control is activated. The last set speed appears in the multifunction display for approximately 5 seconds. Warning! G The cruise control brakes automatically so that the set speed is not exceeded. The brake pedal is depressed automatically to do this. Keep in mind that the cruise control is a convenience system designed to assist the driver during vehicle operation. The driver is and must always remain responsible for the vehicle's speed and for safe brake operation. Keep driver's foot area clear at all times, including the area under the brake pedal. Objects stored in this area may impair pedal movement which could interfere with the braking ability of the cruise control system. Do not place your foot under the brake pedal - your foot could become caught. i On uphill grades, the cruise control may not be able to maintain the set speed. Once the grade eases, the set speed will be resumed. On downhill grades, the cruise control maintains the set speed with active braking action. In addition, on longer downhill grades the automatic transmission will automatically downshift. 265