If you operate the vehicle without AdBlue
®
or
with emissions-relevant malfunctions, the oper-
ating permit is invalidated. The legal conse-
quence of this is that the vehicle may no longer
be operated on public roads.
Engine management monitors the exhaust gas
aftertreatment components for compliance with
emissions laws and regulations. If you attempt
to operate the vehicle without AdBlue
®
, with
diluted AdBlue
®
or with a different reducing
agent, this will be detected by the engine man-
agement system. Other emissions-relevant mal-
functions, e.g. dosage malfunctions or sensor
errors, are also detected and logged.
The engine management system subsequently
prevents the engine being restarted after issu-
ing a warning message.
Therefore, top up the AdBlue
®
tank regularly
during vehicle operation or, at the latest, after
receiving the first warning message via the on-
board computer (
Y
page 103).
Correct use of the vehicle
If you remove warning stickers, others may fail
to recognise the dangers. Leave the warning
stickers in their original position.
Observe the following information when oper-
ating the vehicle:
R
the safety notes in these operating instruc-
tions
R
technical data for the vehicle
R
traffic laws and regulations
R
laws pertaining to motor vehicles and safety
standards
QR codes for rescue card
The QR code is secured in the fuel filler flap and
on the opposite side on the right-hand B-pillar.
In the event of an accident, rescue services can
use the QR code to quickly determine the cor-
responding rescue card for your vehicle. The
current rescue card contains, in compact form,
the most important information about your vehi-
cle e.g. the routing of electric cables.
Further information can be found at http://
www.mercedes-benz.de/qr-code.
Implied warranty
!
Observe the notes in this Owner's Manual
regarding the correct operation of your vehi-
cle and possible damage to the vehicle. Dam-
age to the vehicle which is caused by violation
of these notes is not covered by the
Mercedes-Benz implied warranty or the new
or used-vehicle warranty.
Vehicle data memory
Information from electronic control
units
There are electronic control units installed in
your vehicle. Some of these are required for the
safe functioning of your vehicle, some support
you while driving (driver assistance systems).
Your vehicle also offers a range of comfort or
entertainment functions, which are also con-
trolled by the electronic control units.
Electronic control units contain data memories
that can temporarily or permanently store tech-
nical information about the vehicle's operating
state, component loading, maintenance require-
ments as well as technical events and faults.
This information generally documents the con-
dition of a component, a module, a system or the
surroundings, for example:
R
Operating states of system components (e.g.
fill levels, battery status, tyre pressure)
R
Status messages concerning the vehicle or its
individual components (e.g. number of wheel
revolutions/speed, deceleration in move-
ment, lateral acceleration, display of fastened
seat belts)
R
Malfunctions and defects in important system
components (e.g. lights, brakes)
R
information concerning events that may dam-
age the vehicle
R
System responses in special driving situa-
tions (e.g. airbag deployment, intervention of
stability control systems)
R
Ambient conditions (e.g. temperature, rain
sensor)
In addition to performing the actual control unit
function, this data is used by manufacturers to
detect and rectify faults and to optimise vehicle
functions. Most of this data is stored in volatile
memory and processed only in the vehicle itself.
Vehicle data memory
31
General
notes
Z
