2011 Mercedes C-Class Owner's Manual - Page 174

172 Menus and submenus On-board computer and displays : Drive program (S/C/M) ; ESP® mode (ON/OFF) or SPORT handling : RACETIMER ; Lap mode (SPORT) RACETIMER Displaying and starting RACETIMER You can start the RACETIMER when the engine is running or if the SmartKey is in position 2 in the ignition lock. X G Warning The RACETIMER feature is only for use on roads and in conditions where high speed driving is permitted. Racing on public roads is prohibited under all circumstances. The driver is and must always remain responsible for following posted speed limits. To start: press the W button to start the RACETIMER. X To display the intermediate time: press X to show the intermediate time. The intermediate time is displayed for five seconds. X To stop: press the W button to stop the RACETIMER. The RACETIMER interrupts timing when you stop the vehicle and turn the SmartKey to position 1 in the ignition lock. When you turn the SmartKey to position 2 or 3 and then press the W button, timing is continued. Storing the lap time and starting a new lap It is possible to store a maximum of sixteen laps. X Press the X button on the steering wheel to show the intermediate time during timing. The intermediate time is displayed for five seconds. X Press the X button again within five seconds. The displayed intermediate time is stored as a lap time. Timing starts for a new lap. The new lap is timed from when the intermediate time is called up. You can use the RACETIMER to store lap times. When RACETIMER is displayed, you cannot adjust the volume using the W and X buttons on the steering wheel. X Press = or ; on the steering wheel to select the AMG menu. X Press the 9 button repeatedly until the RACETIMER is shown.