Keys, doors and windows23Fault
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.
Memorised settings
Whenever the ignition is switched off,
the following settings are
automatically memorised by the
remote control unit or the electronic
key:● automatic climate control
● lighting
● Infotainment system
● central locking system
● Sport mode settings
● 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 3 139 or
electronic key 3 21.
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 settings of the driver's seat are
also memorised independent of the
memory positions 3 44.
The power seat automatically moves
into the saved position when
unlocking and opening the driver's
door with the memorised remote
control or electronic key and Auto
Memory Recall in the Info-Display is
activated.
Vehicle personalisation 3 106.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.
Notice
In the event of an accident in which
airbags or belt pretensioners are
deployed, the vehicle is
automatically unlocked.
Notice
A short time after unlocking with the
remote control the doors are locked
automatically if no door has been
opened. A precondition is that the
setting is activated in the vehicle
personalisation 3 106.
46Seats, restraintsSide 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 23, Vehicle
personalisation 3 106.
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.
Storing position by remote control
Actual driver's seat position is
automatically stored by the radio
remote control key each time the
ignition is switched off. These stored
positions are independent of the
memory positions stored by the
button 1 or 2.
The stored positions are
automatically recalled by switching on the ignition.
To stop recall 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 3 102.
Vehicle personalisation 3 106.
Easy exit function
For a convenient exit out of the
vehicle, the power driver seat moves
rearwards when vehicle is stationary.
To activate, switch off ignition,
remove key from the ignition switch
and open the driver's door. If the door
is already open, switch off ignition to
activate the recall.
To stop recall movement, press one
of the memory or power seat controls.
Seats, restraints47This function can be activated or
deactivated in the vehicle
personalisation.
Select the relevant setting in the Vehicle menu in the Info-Display.
Info-Display 3 102.
Vehicle personalisation 3 106.
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 button for 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.
Notice
After an accident in which airbags
have been deployed, the memory
function for each position button will
be deactivated.Armrest
The armrest can be slid forwards by
10 cm. Under the armrest there is a
storage compartment.
Armrest storage 3 66.
Heating
Adjust heating to the desired setting
by pressing ß for the respective seat
one or more times. The control
indicator in the button indicates the
setting.
Prolonged use of the highest setting
for people with sensitive skin is not
recommended.
The seat heating will be reduced
automatically from highest level to
medium level after 30 minutes.
Seat heating is operational when
engine is running and during an
Autostop.
Instruments and controls107Temperature Zone at Start:
Change between single zone or
dual zone temperature setting.
Auto Cooled Seats :
Automatically activates the seat
ventilation.
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.
● Park Assist / Collision Detection
Forward Collision Alert : Activates
or deactivates forward collision
alert.
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 bychimes only or is deactivated
completely.
Park Assist : Activates or
deactivates the ultrasonic
parking assist. Activation is
selectable with or without
attached trailer coupling.
Side Blind Zone Alert : Activates
or deactivates side blind zone alert.
Lane Change Alert : Activates or
deactivates lane keep assist.
● Comfort Settings
Auto Memory Recall : Changes
the settings to the recall of
memorised settings for power
seat adjustment and exterior mirrors.
Easy Exit Driver Seat : Activates
or deactivates easy exit function of the power seat.
Chime Volume : Changes the
volume of warning chimes.
Auto Mirror Tilt in Reverse :
Activates or deactivates the
parking assist function of the
exterior mirror.Comf. Closing Mirror Fold :
Activates or deactivates folding
of the exterior mirrors with the
remote control.
Personalisation by Driver :
Activates or deactivates the
personalisation function.
Rain Sense Wipers : Activates or
deactivates automatic wiping
with rain sensor.
Rear Auto Wipe in Reverse :
Activates or deactivates
automatic switching on of the
rear window wiper when reverse
gear is engaged.
● Exterior Ambient Lighting
Exterior lighting by unlocking :
Activates or deactivates the entry
lighting.
Duration upon exit of vehicle :
Activates or deactivates and
changes the duration of exit
lighting.
Left or Right Hand Traffic :
Changes between lighting for left or right-hand traffic.
Instruments and controls109Settings● Climate & Air Quality
Auto Fan Max Speed : Modifies
the level of the cabin airflow of the climate control in automatic
mode.
Air Conditioning Mode : Controls
the state of the cooling
compressor when the vehicle is
started. Last setting
(recommended) or at vehicle
start is either always on or always
off.
Auto Compartment Zone Temp :
Change between single zone or
dual zone temperature setting.
Auto Cooled Seats :
Automatically activates the seat
ventilation.
Auto Heated Seats :
Automatically activates the seat
heating.
Auto Defog : Supports
windscreen dehumidification by
automatically selecting the
necessary settings and
automatic air conditioning mode.Auto Rear Defog : Automatically
activates heated rear window.
● Collision / Detection Systems
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 :
Changes the settings of forward
collision alert.
Park Assist : Activates or
deactivates the ultrasonic
parking assist. Activation is
selectable with or without
attached trailer coupling.
Side Blind Zone Alert : Activates
or deactivates side blind zone
alert.
Lane Change Alert : Activates or
deactivates lane keep assist.● Comfort and Convenience
Auto Memory Recall : Changes
the settings to the recall of
memorised settings for power
seat adjustment and exterior
mirrors.
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 mirror.
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.
Instruments and controls111
In the corresponding submenus the
following settings can be changed:
Vehicle ● Climate and Air Quality
Auto Fan Speed : Modifies the
level of the cabin airflow of the
climate control in automatic
mode.
Air Conditioning Mode : Controls
the state of the cooling
compressor when the vehicle is
started. Last setting
(recommended) or at vehicle
start is either always on or always
off.
Auto Compartment Zone Temp :
Change between single zone or
dual zone temperature setting.
Auto Cooled Seats :
Automatically activates the seat
ventilation.
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 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 brakecontrol, warn by chimes only or is
deactivated completely.
Park Assist : Activates or
deactivates the ultrasonic
parking assist. Activation is
selectable with or without
attached trailer coupling.
Side Blind Zone Alert : Activates
or deactivates side blind zone alert.
Lane Change Alert : Activates or
deactivates lane keep assist.
● Comfort and Convenience
Auto Memory Recall : Changes
the settings to the recall of
memorised settings for power
seat adjustment and exterior
mirrors.
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 mirror.
214Vehicle carePush the screwdriver through therecess in the adapter. Remove the
cover by pulling the screwdriver.No.Circuit1–2Climate control system, fan3Power seat driver side4Cigarette lighter/Power outlet
front5–6Power window front7ABS8Heated steering wheel9Body control module10Power window rear11Sunroof12Body control module13Seat heating (only on vehicles
without alarm horn)14Exterior mirror/Rain sensor/
Lane keep assist/High beam
assist15Body control moduleNo.Circuit16Body control module17Body control module18Body control module19Data link connector20Airbag system21Climate control system22Central locking system, tailgate23Electronic key system24Power seat memory function25Illumination switch steering
wheel26Ignition switch/Steering column
lock27Body control module28USB socket29–30Selector lever31Rear window wiper