e.g. temperature, rain.
As well as performing the actual control functions, these data are also used to detect and rectify
faults and help Volkswagen to improve vehicle functions. The majority of these data are temporary
and are only processed within the vehicle itself. Only a very small amount of data is stored in the
event memories or possibly on the vehicle key.
Reading out the vehicle's event memory
There is a diagnostic interface in the vehicle interior for reading out the event memories (on-board
diagnosis)
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If you have service work performed on your vehicle, the technical data can be read out of the vehicle
together with the vehicle identification number by service employees, e.g. workshops, or third
parties such as breakdown services. Service work includes, for example, repairs, maintenance,
warranty work or quality assurance measures. The service workshop or third party collects,
processes and uses the data. The data document the vehicle's technical status, help in
troubleshooting and in improving quality and may be sent to Volkswagen in some cases.
Furthermore, the manufacturer is subject to legal product safety requirements. To make sure it
complies with these requirements, the manufacturer requires technical data from the vehicles.
Event memories in the vehicle can be reset by a service workshop as part of repair or service work.
The event memory should be read out and reset only by a qualified workshop. Additional
information on the stored data is available from the qualified workshop.
After a fault has been rectified, the information in the memory relating to the fault is deleted. Other
memory content is overwritten on an ongoing basis.
Event data recorder
This vehicle is equipped with an event data recorder. The main task of an event data recorder is to
record data in particular accident scenarios or accident-like situations, e.g. in the event of airbags
being triggered or a collision with an obstacle on the road. These data help in analysis of how a
vehicle system behaved in these situations. The event data recorder records data relating to driving
dynamics and the restraint system for a short period of 10 seconds or less. This information includes,
for example:
of the driver and front passenger were fastened.
These data help to obtain a better understanding of the circumstances in the situations where
accidents and injuries have occurred.
Data from driver assist systems are also recorded. In addition to information about whether the
systems were switched on or off, available only to a restricted extent or inactive, it is also possible to
determine whether these functions steered, accelerated or braked the vehicle in the above-
described situations. Depending on the vehicle equipment, these systems include the following:
