Problem Possible
causes/co nsequences andM Solutions
The
Navigation Unavailable message
appea rs. COMAND
hasanintegrated harddrive onwhich thedigital mapis
stored.
To protect thehard drive fromdamage, COMAND switchesitoff
at very high temperatures. Thenavigation systemwillthen be
temporarily unavailable.
X Let the vehicle andCOMAND cooldown.
X To hide themessage: switchCOMAND offand then onagain. If
an area ofthe hard diskhasamalfunction ,COMAND canno
longer access themap data inthis area, forexample when
calculating aroute.
X To hide themessage: switchCOMAND offand then onagain.
The navigation systemwillbeoperational againuntilithas to
access thefaulty areaofthe hard drive oncemore. Themessage
will then reappear.
X Consult anauthorized Mercedes-B enzCenter. Problem Possible
causes/co nsequences andM Solutions
You
seeamessage
informin gyou that the
DVD containing the
digital mapis
incompatible withthe
system software. The
DVD containing thedigital mapcannot beused forthe update.
X To confirm themessage: pressWthe COMAND controller.
X Ejec tthe DVD .
X Have thesystem software updatedatan authorized Mercedes-
Benz Center. Problem Possible
causes/co nsequences andM Solutions
The
map software
update hasfailed. The
DVD isdirty orscratc hed.
X Clea nthe DVD .
X Restart theupdate. There
isoverheating duetoexcessive temperatures inthe vehicle
interior.
X Wait untilthevehicle interior hascooled down.
X Restart theupdate. COMAND's
integralharddrive isfaulty.
X Consult anauthorized Mercedes-B enzCenter. 96
Problems
withthenavigation systemNavigation
