Page 28 of 245

26Keys, doors and windows
Closing
Use one of the interior handles.
Do not push the touchpad switch under the moulding whilst closing as
this will unlock the tailgate again.
Central locking system 3 21.
General hints for operating
tailgate
9 Danger
Do not drive with the tailgate open
or ajar, e.g. when transporting
bulky objects, since toxic exhaust
gases, which cannot be seen or
smelled, could enter the vehicle.
This can cause unconsciousness
and even death.Caution
Before opening the tailgate check
overhead obstructions, such as a
garage door, to avoid damage to
the tailgate. Always check the
moving area above and behind the tailgate.
Notice
The installation of certain heavy
accessories onto the tailgate may
affect its ability to remain open.
Vehicle security
Anti-theft locking system9 Warning
Do not use the system if there are
people in the vehicle! The doorscannot be unlocked from the
inside.
The system deadlocks all the doors.
All doors must be closed otherwise
the system cannot be activated.
If the ignition was on, the driver's door
must be opened and closed once so
that the vehicle can be secured.
Unlocking the vehicle disables the
mechanical anti-theft locking system.
This is not possible with the central
locking button.
Page 29 of 245

Keys, doors and windows27
Activating
Press e on the radio remote control
twice within 10 seconds.
Anti-theft alarm system The anti-theft alarm system is
operated in conjunction with the
central locking system.
It monitors: ■ Doors, tailgate, bonnet
■ Ignition
Unlocking the vehicle deactivates the
anti-theft alarm system.
Status LED
Status LED is integrated in the central
locking button.
Status during the first 10 seconds of
anti-theft alarm system activation:
LED illuminates=test, arming delay.LED flashes
quickly=doors, tailgate or
bonnet not
completely closed,
or system fault.
Status after system is armed:
LED flashes
slowly=system is armed.Seek the assistance of a workshop in
the event of faults.
AlarmWhen triggered, the horn sounds, and
the hazard warning lights flash
simultaneously. The number and
duration of alarm signals are
stipulated by legislation.
The alarm can be silenced by
pressing any button of the radio
remote control or by switching on the
ignition.
The anti-theft alarm system can be
deactivated only by pressing button
c or by switching on the ignition.
A triggered alarm, which has not been interrupted by the driver, will be
indicated by a warning message or a
warning code in the Driver
Information Centre after switching on
the ignition.
Vehicle messages 3 104.
If the vehicle's battery is to be
disconnected (e.g. for maintenance
work), the alarm siren must be
deactivated as follows: switch the
Page 30 of 245

28Keys, doors and windows
ignition on then off, then disconnect
the vehicle's battery within
15 seconds.
Immobiliser The system is part of the ignition
switch and checks whether the
vehicle is allowed to be started with the key being used.
The immobiliser is activated
automatically after the key has been
removed from the ignition switch.
If control indicator d flashes when the
ignition is on, there is a fault in the
system; the engine cannot be started. Switch off the ignition and then repeat the start attempt.
If control indicator d continues
flashing, attempt to start the engine using the spare key and seek the
assistance of a workshop.
Notice
The immobiliser does not lock the
doors. You should always lock the
vehicle after leaving it and switch on
the anti-theft alarm system 3 21,
3 27.Control indicator d 3 98.Exterior mirrors
Convex shape
The convex exterior mirror contains
an aspherical area and reduces blind spots. The shape of the mirror makes
objects appear smaller, which will
affect the ability to estimate
distances.
Electric adjustment
Select the relevant exterior mirror by
turning the control to left (L) or right
(R) . Then swivel the control to adjust
the mirror.
Page 33 of 245

Keys, doors and windows31Keep a close watch on the
windows when closing them.
Ensure that nothing becomes
trapped in them as they move.
Power windows can be operated:
■ with ignition on
■ within 10 minutes of switching ignition off
■ within 5 minutes of opening or closing a door
After switching off the ignition,
window operation is disabled as soon
as the vehicle is locked with the radio remote control.
Operate the switch for the respective
window by pushing to open or pulling to close.
Pushing or pulling gently to the first
detent: window moves up or down as long as switch is operated.
Pushing or pulling firmly to the second
detent and then releasing: window
moves up or down automatically with
safety function enabled. To stop
movement, operate the switch once
more in the same direction.
Safety function
If the window glass encounters
resistance above the middle of the
window during automatic closing, it is
immediately stopped and opened again.
Override safety function
In the event of closing difficulties due
to frost or the like, switch on the
ignition, then pull the switch to the first
detent and hold. The window moves
up without safety function enabled.
To stop movement, release the
switch.Child safety system for rear
windows
Press switch z to deactivate rear
door power windows, the LED
illuminates. To activate, press z
again.
Operating windows from outside
The windows can be operated
remotely from outside the vehicle.
Page 100 of 245

98Instruments and controlsImmobiliser
d flashes yellow.
Fault in the immobiliser system. The
engine cannot be started.
Reduced engine power
# illuminates yellow.
The engine power is limited. Consult
a workshop.
Exterior light 8 illuminates green.
The exterior lights are on 3 115.
High beam
C illuminates blue.
Illuminated when high beam is on and during headlight flash 3 116.
Adaptive forward lighting
f illuminates or flashes yellow.
Illuminates
Fault in system.Seek the assistance of a workshop.
Flashes System switched to symmetrical low
beam.
Control indicator f flashes for approx.
4 seconds after the ignition is
switched on as a reminder that the
system has been activated 3 117.
Automatic light control 3 116.
Fog light
> illuminates green.
The front fog lights are on 3 119.
Rear fog light
r illuminates yellow.
The rear fog light is on 3 120.
Cruise control
m illuminates white or green.
Illuminates white
The system is on.Illuminates green
A certain speed is stored.
Cruise control 3 149.
Door open
h illuminates red.
A door or the tailgate is open.
Automatic locking ^ illuminates amber.
Fault in the automatic locking system. The rear doors are possibly not
secured against opening.9 Warning
Stop your journey immediately!
Follow the instructions as
described in paragraph "Fault in
the automatic locking system"
before continuing your journey
3 24.
Consult a workshop.
Page 109 of 245

Instruments and controls107
Vehicle messages on the
Colour-Info-Display Some important messages appear
additionally in the
Colour-Info-Display. Press the
multifunction knob to confirm a
message. Some messages only pop- up for a few seconds.
Warning chimes Only one warning chime will sound at
a time.
The warning chime regarding
unfastened seat belts has priority
over any other warning chime.
When starting the engine or
whilst driving ■ If seat belt is not fastened.
■ If a door or the tailgate is not fully closed when starting-off.
■ If a certain speed is exceeded with parking brake applied.
■ If a programmed speed is exceeded.■ If a warning message or a warningcode appears in the Driver
Information Centre.
■ If the parking assist detects an object.
■ If reverse gear is engaged and the rear end carrier is extended.
■ If a fault in the automatic locking system is detected.
■ If the diesel particle filter has reached the maximum filling level.
When the vehicle is parked and/ or the driver's door is opened ■ When the key is in the ignition switch.
■ With exterior lights on.
During an Autostop ■ If the driver's door is opened.
Battery voltage
When the vehicle battery voltage is
running low, a warning message or
warning code 174 will appear in the
Driver Information Centre.1. Switch off immediately any electrical consumers which are
not required for a safe ride, e.g.
seat heating, heated rear window
or other main consumers.
2. Charge the vehicle battery by driving continuously for a while or
by using a charging device.
The warning message or warning
code will disappear after the engine
has been started twice consecutively
without a voltage drop.
If the vehicle battery cannot be
recharged, have the cause of the fault
remedied by a workshop.
Page 114 of 245

112Instruments and controls
Vehicle settings
■Climate and air quality
Auto fan speed : Modifies the level
of the cabin airflow of the climate
control in automatic mode.
Climate control mode : Controls the
state of the cooling compressor
when the vehicle is started. Last
setting (recommended) or at
vehicle start either always ON or
always OFF.
Auto rear demist : Activates
automatically rear heated window.
■ Comfort settings
Chime volume : Changes the
volume of warning chimes.
Personalization by driver : Activates
or deactivates the personalisation
function.
Rear auto wipe in reverse :
Activates or deactivates automatic
switching on of the rear window
wiper when reverse gear is
engaged.
■ Park assist / Collision detection
Park assist : Activates or
deactivates the ultrasonic parking
assist.
■ Exterior ambient lighting
Duration upon exit of vehicle :
Activates or deactivates and
changes the duration of exit
lighting.
Exterior lighting by unlocking :
Activates or deactivates the
welcome lighting.
■ Remote locking, unlocking, starting
Remote door unlock : Changes the
configuration to unlock only the
driver's door or the whole vehicle
whilst unlocking.
■ Restore factory settings
Restore factory settings : Resets all
settings to the default settings.
Settings in the Colour-Info-
Display CD 600/Navi 650/Navi 950
Page 116 of 245

114Instruments and controls
■Display Off :
See Infotainment system manual
for further information.
■ Map Settings :
See Infotainment system manual
for further information.
Vehicle Settings ■ Climate and Air Quality
Auto Fan Speed : Modifies the fan
regulation. Changed setting will be active after switching the ignition off
and on again.
Air Conditioning Mode : Activates or
deactivates cooling when switching on the ignition or uses the last
chosen setting.
Auto Demist : Activates or
deactivates auto demist.
Auto Rear Demist : Activates
automatically the rear heated
window.
■ Comfort and Convenience
Chime Volume : Changes the
volume of warning chimes.Personalisation by Driver :
Activates or deactivates the
personalisation function.
Auto Reverse Gear Wiper :
Activates or deactivates
automatically switching on of the
rear window wiper when reverse gear is engaged.
■ Collision Detection Systems
Park Assist : Activates or
deactivates the ultrasonic sensors.
■ Lighting
Vehicle Locator Lights : Activates or
deactivates the entry lighting.
Exit Lighting : Activates or
deactivates and changes the
duration of exit lighting.
■ Remote Lock/Unlock/Start
Remote Door Unlock : Changes the
configuration to unlock only the
driver's door or the whole vehicle
whilst unlocking.
■ Return to Factory Settings? :
Resets all settings to the default
settings.