Keys, doors and windows23Replacing battery in electronic
key
Replace the battery as soon as the
system no longer operates properly or the range is reduced. The need for battery replacement is indicated by a
message in the Driver Information
Centre 3 99.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
1. To unclip the cover insert a small screwdriver in the cutout.
2. Remove the cover.
3. Extract the flat battery from its location.
4. Replace battery with a battery of the same type. Pay attention to
the installation position.
5. Clip the cover in place.
Fault
If the central locking cannot be operated or the engine cannot be
started, the cause may be one of the
following:
● Fault in electronic key.
● Electronic key is out of reception range.
● The battery voltage is too low.
● Overload of the central locking system by operating at frequentintervals, the power supply is
interrupted for a short time.
● Interference from higher-power radio waves from other sources.
To rectify the cause of the fault,
change the position of the electronic
key.
Manual unlocking 3 23.
Central locking system Unlocks and locks doors, load
compartment and fuel filler flap.
Pull an interior door handle fully to
unlock and open the respective door.
100Instruments and controls● If a warning message appears inthe Driver Information Centre.
● If the electronic key is not in the passenger compartment.
● If the parking assist detects an object.
● If an unintended lane change occurs.
● If the diesel particle filter has reached the maximum filling
level.
When the vehicle is parked and /
or the driver's door is opened
● With exterior lights on.
During an Autostop ● If the driver's door is opened.● If any condition for an autostart is
not fulfilled.
Battery voltage When the vehicle battery voltage isrunning low, a warning message will
appear in the Driver Information
Centre.When the vehicle is being driven, the
load reduction function temporarily
deactivates certain functions, such as
the air conditioning, the heated rear
screen, heated steering wheel, etc.
The deactivated functions are
reactivated automatically as soon as
conditions permit.Vehicle personalisation
The vehicle's behaviour can be
personalised by changing the settings in the Info Display.
Depending on vehicle equipment and
country-specific regulations some of the functions described below may
not be available.
Some functions are only displayed or
active when the engine is running.
Graphic Info Display
Press MENU to open the menu page.
Use four-way button to operate the
display:
248Customer informationEnGIS Technologies, Inc.
BringGo ®
is a registered trademark of
EnGIS Technologies, Inc.Google Inc.
Android™ and Google Play™ Store
are trademarks of Google Inc.Stitcher Inc.
Stitcher™ is a trademark of Stitcher,
Inc.Verband der Automobilindustrie e.V.
AdBlue ®
is a registered trademark of
the VDA.Vehicle data recording
and privacy
Event data recorders
Electronic control units are installed in
your vehicle. Control units process
data which is received by vehicle
sensors, for example, or which they
generate themselves or exchange
amongst themselves. Some control
units are necessary for the safe
functioning of your vehicle, others
assist you while you drive (driver
assistance systems), while others
provide comfort or infotainment
functions.
Operating data in the vehicle Control units process data for
operation of the vehicle.This data includes, for example:
● Vehicle status information (e.g. wheel rotation rate, speed,
movement delay, lateral
acceleration, "seatbelts
fastened" display),
● Ambient conditions (e.g. temperature, rain sensor,
distance sensor).
Most of this data is volatile and is
processed only in the vehicle itself,
and not beyond the operating time.
Moreover, many control units include
data storage device (amongst others the vehicle key). This is used to allow
information to be documented
temporarily or permanently on vehicle
condition, component stress,
maintenance requirements and
technical events and errors.
The following information, for
example, is stored:
● System component operating states (e.g. fill level, tyre
pressure, battery status),
● State of charge of the high voltage battery, estimated range(in the case of electric vehicles),
