Questions and answers about
system updates
Please refer to at the start of the chap-
What is the purpose of a system update?
A system update is a preventive measure to
stop undesirable events and states from oc-
curring. For example protection against mal-
ware or to optimise the running of the soft-
ware.
Should I perform the system update?
It is in your own interests to carry out system
updates. If the driver repeatedly rejects the
system update, it is then necessary to visit
a qualified workshop.
Can I manually interrupt the download of the
system update?
No, this is not possible.
Can I interrupt software installation?
No, this is not possible.
What will happen if software installation is
interrupted?
If software installation is interrupted, for ex-
ample due to damage to the electrical system
in the vehicle, it is possible that control units
will be not be updated and may be damaged
due to incomplete software installation
System update
.
Can system updates with malware that are
not initiated by Volkswagen be installed in
the vehicle?
Further information → page 195,
Cybersecur-
ity
.
How long can I wait before carrying out
a system update?
The available system update should be instal-
led as soon as possible in your own interests.
Car2X communication
Introduction to the topic
Function of Car2X
Car2X permits close-range communication
between several vehicles and between vehi-
cles and the traffic infrastructure (referred to
below as “participants”). Communication be-
tween participants takes place based on
manufacturer-independent Car2X and Wi-Fi
standards. Car2X functions only in some
countries.
When Car2X is switched on, data is transmit-
ted continuously between the participants –
irrespectively of whether your vehicle is in
online or offline mode.
In order to prevent misuse and to sign Car2X
data with changing IDs, a Car2X data sender
must have valid certificates. Every receiver
can thus check whether Car2X data is au-
thentic and from an authorised participant.
Certificates in your own vehicle can be auto-
matically renewed only in online mode.
The use of continuously changing, temporary
IDs for the Car2X data minimises the possibil-
ity of the transmitted data being traced back
to you.
Further information on data process-
ing can be found in the Infotainment
system in the
Legal info
menu and on the Volks-
wagen AG website.
Meaning of the symbol
Indication that activated Car2X also
transmits and receives data in offline
mode.
Data transmission
When Car2X is switched on, the following da-
ta is transmitted and received via the Car2X
aerials on the vehicle roof and in some cases
in the mirror triangle of the windscreen:
— Vehicle data, e.g. speed.
— Position data.
198
Data transfer