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General notes
82
State authorities are themselves authorised to
read out data from the vehicle in individual cases
and within the applicable legal framework. In the
case of an accident, information that can help
with an investigation can be taken from the airbag
control unit, forexample.
Operational data in the vehicle
To operate the vehicle, control units process data.
This includes the following data, forexample:
Vehicle status information suchas the speed,
R
longitudinal acceleration, lateral acceleration,
number of wheel revolutions or the fastened
seat belts display
Ambient conditions, suchas temperature, rain
R
sensor or distance sensor
Generally, this data is volatile and will not be
stored beyond the period of operation and will
only be processed within the vehicle itself. Con-
trol units, forexample, vehicle keys, often contain
data memories. Their use permits the temporary
or permanent documentation of technical infor-
mation about the vehicle's operating state, com-
ponent loads, maintenance requirements and
technical events or faults.
Depending on the technical equipment, the fol-
lowing data are stored:
Operating status of system components,
R
suchas fill levels, tyre pressure or battery sta-
tus
Malfunctions or faults in important system
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components, suchas lights or brakes
System reactions in special driving situations,
R
suchas an airbag deployment or the interven-
tion of stability control systems
Information on events leading to vehicle dam-
R
age
State of charge of the high-voltage battery,
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estimated range
In certain cases, storing data that would have oth-
erwise been temporary may be required. This may
be the case if the vehicle has detected a malfunc-
tion, forexample.
If you make use of services, e.g.repair services,
maintenance work,– the stored operating data
can be read out and used together with the vehi-
F243 0059 02
cle identification number – if necessary. Service
network employees suchas workshops and manu-
facturers, and third parties suchas breakdown
services can read out the data. The same is true
in the event of warranty claims and quality assur-
ance measures.
In general, the readout is performed via the legally
prescribed port for the diagnostics connection in
the vehicle. The selected operating data docu-
ment the vehicle's or individual components'
technical conditions, help with fault diagnosis,
compliance with warranty obligations and quality
improvement. To that end, these data, particularly
information about component loads, technical
events, malfunctions and other faults, may be
transmitted to the manufacturer along with the
vehicle identification number. Furthermore, the
manufacturer is subject to product liability. For
this reason, the manufacturer also uses opera-
tional data from the vehicle, e.g. for recalls. This
data can also be used to review the customer's
warranty and guarantee claims.
Fault memories in the vehicle can be reset by a
service outlet or at your request as part of repair
or maintenance work.
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