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Online software updates cannot be performed
via external WLAN hotspots that are encryp-
ted via TKIP.
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To complete software updates via the commu-
nication module, the vehicle must be connec-
ted with the Internet and a Mercedes me user
account.
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To complete software updates via WLAN, the
vehicle must be connected to an external
WLAN hotspot.
A software update consists of three steps:
Downloading or copying of the data required
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for installation
Installation of the downloaded software
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update
Activation of the downloaded software update.
R
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It may be necessary to restart the MBUX mul-
timedia system after completion of a software
update.
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While some software updates are being down-
loaded, the multimedia system cannot be
operated and the vehicle functions may be
restricted.
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Some software updates require a safe vehicle
status for the installation to be completed.
They can only be carried out in a safely
parked vehicle with the vehicle switched off.
For software updates requiring a safe vehicle sta-
tus: when the last installation step is reached, a
message appears on the central display after the
vehicle is switched off. Follow the step-by-step
instructions on the central display to complete the
installation.
There are software updates that can only be
installed when the vehicle is safely parked, there
are no more people in the vehicle and the vehicle
is locked.
Availability of the driver and central display
During the installation of software updates, it is
not possible to use the vehicle, central display
and driver display. You may receive the following
display message when an installation is running:
MBUX multimedia system 297
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The display message does not appear every
time a software update is installed.
In rare cases, an error can occur during the instal-
lation. The multimedia system automatically
attempts to restore the previous version.
If it is not possible to restore the previous version,
the display message shown above appears every
time the vehicle is started.
Failure of the driver display
If the driver display fails or there is a malfunction,
you may not recognize limitations in the functions
of systems relevant to safety or the speed display,
for example. The operating safety of the vehicle
may be impaired. Drive on carefully and have the
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