2010 Mercedes S-Class Owner's Manual - Page 230

228 Instrument cluster control system The engine oil temperature will be shown in blue if the engine oil temperature has not yet reached 176‡ (80†). During this time, avoid driving at full engine speed. If the engine reaches the overspeed range in the manual shift program, you will see up next to gear indicator : as a reminder to upshift. Use buttons : or 9 to select the following functions in the AMG menu: RRACETIMER (Y page 228) ROverall RLap While the RACETIMER is being displayed, you cannot adjust the audio volume using buttons W or X. X analysis (Y page 229) analysis (Y page 229) RACETIMER 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. The RACETIMER allows you to time and save driving stretches. X Press button = or ; to select the AMG menu. X Press button 9 to select the RACETIMER. Starting: Press button W. X Displaying intermediate time: Press button X while the timer is running. The intermediate time is shown for 5 seconds. X Stopping: Press button W. When you stop the vehicle and turn the SmartKey to position 1 (Y page 284) or, in vehicles with KEYLESS-GO, turn off the engine and do not open the driver's door, the RACETIMER stops timing. Timing is resumed when you press button W after switching the ignition back on or restarting the engine. When you switch on the Night View Assist Plus (Y page 356) while the RACETIMER is operating, the RACETIMER will continue to run in the background but cannot be operated with the multifunction steering wheel buttons. To stop the RACETIMER, switch off the Night View Assist Plus first. Saving lap time and starting a new lap You can save up to 16 laps. X Press button X while the timer is running. The intermediate time will be shown for 5 seconds. X Press button X within 5 seconds. The intermediate time shown will be saved as a lap time. The RACETIMER begins timing the new lap. The new lap begins to be timed as soon as the intermediate time is called up. Control systems : Gear indicator ; Second hand = RACETIMER ? Lap You can start the RACETIMER when the engine is running or the starter switch is in position 2 (Y page 284).