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Vehicle data recording and privacy
Vehicle data recording 
and privacy
Electronic control units are installed in your 
vehicle. These control units process data 
received from the vehicle's sensors, for example, 
or data they generate themselves or exchange 
with each other. Some of these control units are 
required for the correct operation of your vehicle, 
some others assist you while driving (driving or 
manoeuvring aids), while others provide comfort 
or infotainment functions.
The following contains general information about 
how data is processed within the vehicle.
You will find additional information about the 
specific data which is downloaded, stored 
and transmitted to third parties and what it is 
used for in your vehicle under the keyword 
"Data protection". This information is directly 
associated with the references for the functions 
in question contained in the corresponding 
vehicle handbook, or in the general terms and 
conditions of sale.
This information is also available online.
Vehicle operating data
The control units process the data used for the 
operation of the vehicle. 
This data includes, for example: 
– 
Information about the state of the vehicle 
(e.g.
  speed, travel time, lateral acceleration, 
wheel rotation rate, fastened seat belts display).  –
 
Environmental conditions (e.g.
   temperature, 
rain sensor, distance sensor). 
As a general rule, this data is temporary, is 
not stored for longer than one operating cycle 
and is only used within the vehicle itself. The 
control units often record this data (including the 
vehicle's key). This function allows either the 
temporary or permanent storage of information 
about the state of the vehicle, stresses on 
components, servicing requirements, as well as 
events and technical errors. 
Depending on the vehicle's equipment level, the 
data stored is as follows: 
–  
Operating state of system components 
(e.g.
   filling level, tyre pressures, battery charge 
status). 
–  
Faults and malfunctions in important system 
components (e.g.
   lamps, brakes). 
–  
System reactions in specific driving situations 
(e.g.
   deployment of an airbag, triggering of 
stability control and braking systems). 
–  
Information about events which have 
damaged the vehicle. 
–
  
For electric and rechargeable hybrid vehicles, 
the traction battery charge level and the 
estimated driving range. 
In particular circumstances (e.g.
   if the vehicle 
has detected a malfunction), it may be necessary 
to record data which would otherwise simply not 
be stored. 
When taking your vehicle in for servicing 
(e.g.
  repairs, maintenance), the stored operating 
data may be read along with the vehicle's  identification number and used if necessary. 
The personnel working for the servicing network 
(e.g.
  garages, manufacturers) or third parties 
(e.g.   roadside assistance agents) may read 
the vehicle's data. This also applies to work 
carried out under warranty and quality assurance 
measures. 
This data is generally read via the OBD 
(On-Board Diagnostics) port fitted by law to 
the vehicle. It is used to report on the technical 
state of the vehicle or its components and 
facilitates the diagnosis of malfunctions, in 
compliance with warranty obligations and for 
quality improvement. This data, in particular the 
information relating to stress on components, 
technical events, operator errors and other 
malfunctions, is sent to the Manufacturer, if 
necessary, along with the vehicle's identification 
number. The Manufacturer's liability may also be 
engaged. The Manufacturer may also use the 
operating data taken from the vehicle for product 
recalls. This data may also be used to check the 
customer's warranty and any claims made under 
warranty. 
Any malfunctions stored in the vehicle may be 
reset by an after-sales service company during 
servicing or repair work, or at your request.   CarM an uals 2 .c o m