Keys, doors and windows252. Insert the key blade again forapprox. 6 mm and turn the key to
open the housing. Further
insertion of the key blade can
damage the housing.
3. Remove and replace battery. Use
CR 2032 or equivalent battery.
Pay attention to the installation
position.
4. Close the housing and insert key blade.
Electronic key synchronisation
The electronic key synchronises itself automatically during every startingprocedure.
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 frequent
intervals, 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 25.
Memorised settings
Whenever the ignition is switched off,
some functions of the following
settings may be automatically
memorised by the remote control unit or the electronic key:
● automatic climate control
● lighting
● Infotainment system
● central locking system
● comfort settings
The saved settings are automatically
used the next time the ignition is
switched on with the memorised key
of the remote control unit 3 152 or
electronic key 3 23.A precondition is that Personalisation
by Driver is activated in the personal
settings of the Info Display. This must
be set for each remote control unit or
electronic key which is used. The
status change is available only after
locking and unlocking the vehicle.
The assigned memory position of the
power seat is automatically recalled
when switching on ignition and Auto
Memory Recall is activated in the
Info Display for the memorised
remote control or electronic key.
Power seat 3 52.
Vehicle personalisation 3 124.
Central locking system Unlocks and locks doors, load
compartment and fuel filler flap.
A pull on an interior door handle
unlocks the respective door. Pulling the handle once more opens the door.
Note
In the event of an accident in which
airbags or belt pretensioners are
deployed, the vehicle is
automatically unlocked.
54Seats, restraintsAdjustable thigh support
Pull the lever and slide the thigh
support.
Side bolster
Adjust seat backrest width to suit
personal requirements.
Press e to reduce backrest width.
Press d to increase backrest width.
Memory function for power seat adjustment
Two different driver's seat settings
can be stored.
Memorised settings 3 25.
Vehicle personalisation 3 124.
Storing memory position
● Adjust driver's seat to desired position.
● Press and hold MEM and 1 or 2
simultaneously until a chime sounds.
Recall of memory positions
Press and hold 1 or 2 until the stored
seat position has been reached.
Releasing the button during seat
movement cancels the recall.
Automatic recall of memory positions
Memory positions are assigned to the driver (1 or 2) using the respective key
and are automatically recalled when
Seats, restraints55the ignition is switched on. In addition,
a message in the Driver Information
Centre indicates the driver number,
identified by the used key. If the
ignition is switched on more than
three subsequent times with the
same key, the message will not be
displayed again until another key is
being used.
To stop recall movement, press one
of the memory or power seat controls.
Precondition is that Personalisation
by Driver and Auto Memory Recall is
activated in the personal settings of
the Info Display.
This function can be activated or
deactivated in the vehicle
personalisation.
Select the relevant setting in the Vehicle menu in the Info Display.
Info Display 3 121.
Vehicle personalisation 3 124.
Easy exit function
For a convenient exit out of the
vehicle, the power driver seat moves rearwards when vehicle is stationary.To activate the easy exit function:
● set selector lever to position P
(automatic transmission)
● apply parking brake (manual transmission)
● switch off ignition
● remove key from the ignition switch
● open the driver's door
If the door is already open, switch off
ignition to activate easy exit.
To stop movement, press one of the
memory or power seat controls.
This function can be activated or
deactivated in the vehicle
personalisation.
Select the relevant setting in the
Vehicle menu in the Info Display.
Info Display 3 121.
Vehicle personalisation 3 124.
Safety function
If the driver's seat encounters
resistance during movement, the
recall may stop. After removing the
obstruction, press and hold the
appropriate memory position buttonfor two seconds. Try recalling the
memory position again. If the recall
does not operate, consult a
workshop.
Overload
If the seat setting is electrically
overloaded, the power supply is
automatically cut-off for a short time.
Note
After an accident in which airbags
have been deployed, the memory
function for each position button will
be deactivated.
Armrest
Instruments and controls125Auto Rear Defog: Automatically
activates heated rear window.
● Collision / Detection Systems
Rear View Camera Guidelines :
Activates or deactivates the rear
view camera guidelines on the
Info Display.
Forward Collision Alert :
Activates or deactivates forward
collision alert.
Auto Collision Preparation :
Activates or deactivates the
automatic brake functionality of
the vehicle in the event of
imminent collision danger. The
following is selectable: the
system will take over brake
control, warn by chimes only or is
deactivated completely.
Forward Collision System :
Activates or deactivates warning
chimes or automatic brake
functionality in the event of
imminent collision danger.
Front pedestrian detection :
Activates or deactivates warning
chimes or automatic brakefunctionality of the pedestrian
detection system.
Rear Cross Traffic Alert :
Activates or deactivates rear
cross traffic alert.
Park Assist : Activates or
deactivates the parking assist.
Activation is selectable with or
without attached trailer coupling.
Go Notifier : Activates or
deactivates the reminder
message to drive off when the
adaptive cruise control holds the
vehicle at standstill.
Side Blind Zone Alert : Activates
or deactivates side blind zone alert.
● Comfort and Convenience
Auto Memory Recall : Changes
the settings to the recall of
memorised settings for power
seat adjustment.
Easy Exit Driver Seat : Activates
or deactivates easy exit function
of the power seat.
Chime Volume : Changes the
volume of warning chimes.Reverse Tilt Mirror : Activates or
deactivates the parking assist function of the exterior mirrors.
Auto Mirror Folding : Activates or
deactivates folding of the exterior
mirrors with the remote control.
Personalization By Driver :
Activates or deactivates the
personalisation function.
Rain Sense Wipers : Activates or
deactivates automatic wiping
with rain sensor.
Auto Wipe in Reverse Gear :
Activates or deactivates automatic switching on of the
rear window wiper when reverse
gear is engaged.
Extended Hill Start Assist :
Toggles between hill start assist
and extended hold hill start assist
● Lighting
Vehicle Locator Lights : Activates
or deactivates the entry lighting.
Exit Lighting : Activates or
deactivates and changes the
duration of exit lighting.
Instruments and controls127System
To change Time/Date, see Clock
3 97.
Select Language to open a list of
available languages for the Info
Display and Driver Information
Center. Select desired language.
Apps
See Infotainment manual.
Vehicle ● Climate and Air Quality
Auto Fan Speed : Modifies the
level of the cabin airflow of the
climate control in automatic
mode.
Auto heated seats : Automatically
activates the seat heating.
Auto Demist : Supports
windscreen dehumidification by
automatically selecting the
necessary settings and
automatic air conditioning mode.
Auto Rear Demist : Automatically
activates heated rear window.● Collision/Detection Systems
Forward Collision System :
Deactivates the system
completely, activates warning
chimes only or warning chimes in combination with automatic
brake functionality.
Front Pedestrian Detection :
Activates warning chimes only or
warning chimes in combination
with automatic brake functionality or deactivates the system
completely.
Adaptive Cruise Go Notifier :
Activates or deactivates the reminder message to drive off
when the adaptive cruise control
holds the vehicle at standstill.
Lane Change Alert : Activates or
deactivates side blind zone alert.
Park Assist : Activates or
deactivates the parking assist.
Activation is selectable with or
without attached trailer coupling.
Rear Cross Traffic Alert :
Activates or deactivates rear cross traffic alert.● Comfort and Convenience
Auto Memory Recall : Changes
the settings to the recall of
memorised settings for power
seat adjustment.
Easy Exit Driver's Seat : Activates
or deactivates easy exit function of the power seat.
Chime Volume : Changes the
volume of warning chimes.
Handsfree Liftgate/Boot Lid
Control : Changes the hands-free
function settings of the power tailgate.
Reverse Tilt Mirror : Changes the
parking assist function of the exterior mirrors.
Auto Mirror Folding : Activates or
deactivates folding of the exterior
mirrors with the remote control.
Personalisation by Driver :
Activates or deactivates the
personalisation function,
depending on which key is being
used.
Rain Sense Wipers : Activates or
deactivates automatic wiping
with rain sensor.
Vehicle care245No.Circuit17Body control module 418Body control module 319Data link connector20Airbag system21Climate control system22Central locking system / tailgate23Electronic key system24Power seat memory function25Airbag system steering wheel26Ignition switch / Steering
column lock27Body control module 228USB socket29Cigarette lighter / Power outlet
front30Selector lever31Rear window wiper32Transmission control moduleNo.Circuit33Anti-theft alarm system / Power
sounder34Parking assist / Side blind spot
alert / Infotainment system /
USB socket35SOS36Info Display / Instrument cluster37Infotainment system / radio
After having changed defective fuses,
close the fuse box cover:
1. Apply the cover on the right side.
2. Fold the left side of the cover forwards. Take care that thesecuring clamp is guided as
shown in the illustration.
Load compartment fuse box The fuse box is located on the left side
of the load compartment behind a
cover.
Remove the cover.