2010 Mercedes S-Class Owner's Manual - Page 101

COMAND navigation (introduction) compatible. If this is the case, the navigation system will not be operational. You will know if this is the case, when the following message will appear when you switch to navigation mode: The system software has been updated. The map software must be updated now. Please insert the DVD with the map software. X Updating map software: Proceed as described in the "Updating the map software" section (Y page 96). Use map software which is compatible with the system software. 99 Route guidance after transporting the vehicle or exiting a parking garage COMAND has to redetermine the position of the vehicle if the vehicle has been transported (e.g. by ferry, by train or after towing). COMAND may also have to redetermine the vehicle position when leaving a parking garage. The proper position of the vehicle will even be found if you are driving with COMAND switched off. The duration of the positioning recalculation will vary case by case. During positioning, route guidance may be inaccurate and may show the following: RNavigation i Please note that the update must be allowed to run to the end in this case. If you interrupt it, the navigation system will continue to be non-operational. Initial use or use following a system software update In both these cases, the navigation system must determine the position of the vehicle. You may have to drive for a while before precise route guidance is possible. announcements, route guidance displays and displayed street names are not consistent with the actual location of the vehicle. does not generate navigation announcements. see the Off Road display and a direction arrow. The direction arrow shows the compass heading to the destination. RCOMAND RInstead of the route guidance displays, you GPS reception The Navigation system relies on a number of factors to function correctly. GPS reception is very important. In certain situations GPS may be impaired, for example: Rin Rin After the vehicle position has been redetermined, route guidance with navigation announcements and route guidance display is available again. Interrupting the journey during route guidance The following applies if you interrupt the journey during route guidance and continue the journey later: RCOMAND tunnels parking garages to snow on the GPS antenna Rdue If there is snow on the GPS antenna, you should remove it. The GPS antenna is at the back of the vehicle roof. A roof cargo container may also impair GPS coverage. resumes route guidance automatically if you continue the journey within 2 hours. the journey after more than 2 hours. It will be necessary to resume the canceled route guidance manually (Y page 135). RRoute guidance is canceled if you continue i The journey is interrupted if you park the vehicle and switch off COMAND. The Z Control systems