2006 Mercedes SLK-Class Owner's Manual - Page 151

Controls in detail Control system i All statistics stored since the last engine start will be reset approximately four hours after the SmartKey in the starter switch is turned to position 0 or removed from the starter switch. Resetting will not occur if you turn the SmartKey back to position 1 or 2 within this time period. Fuel consumption since last reset Press button è or ÿ repeatedly until you see the first function of the trip computer menu. Press button j or k repeatedly until you see After reset in the multifunction display. Resetting fuel consumption statistics manually Press and hold reset button Juntil the values of the statistics are reset to 0. Resetting fuel consumption statistics automatically The values of the statistics will be automatically reset to 0 when one of the following values exceeds: distance: 100000 miles (100000 km) 1 Statistics called up: since last reset 2 Time elapsed since last reset 3 Average fuel consumption since last reset 4 Average speed since last reset 5 Distance driven since last reset elapsed time: 10000 hours 150