22Keys, doors and windowsUnlocking 3 22.
Basic settings Some settings can be changed in the
Settings menu in the Info-Display.
Vehicle personalisation 3 103.
Radio remote control battery
replacement
Replace the battery as soon as the
range reduces.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
Key with foldaway key section
Extend the key and open the unit.
Replace the battery (battery type CR 2032), paying attention to the
installation position. Close the unit
and synchronise.
Memorised settings
Whenever the key is removed from
the ignition switch, the following
settings are automatically memorised
by the key:
● lighting
● Infotainment system
● central locking system
● Sport mode settings
● comfort settings
The saved settings are automatically
used the next time the memorised key
is inserted into the ignition switch and
turned to position 1 3 139.
A precondition is that Personalization
by driver is activated in the personal
settings of the Graphic-Info-Display.
This must be set for each key used.
On vehicles equipped with
Colour-Info-Display, the
personalisation is permanently
activated.
Vehicle personalisation 3 103.
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.
Keys, doors and windows23Notice
A short time after unlocking with the
remote control, the doors are
relocked automatically if no door has
been opened.
Unlocking
Press c.
Two settings are selectable: ● To unlock only the driver's door, load compartment and fuel filler
flap, press c once. To unlock all
doors, press c twice.
● Press c once to unlock all doors,
load compartment and fuel filler
flap.
The setting can be changed in the
Settings menu in the Info-Display.
Vehicle personalisation 3 103.
The setting can be saved for the key
being used. Memorised settings
3 22.
Unlocking and opening the tailgate
3 25.
Locking
Close doors, load compartment and
fuel filler flap.
Press e.
If the driver's door is not closed
properly, the central locking system will not work.
Central locking buttons
Locks or unlocks all doors, the load
compartment and fuel filler flap from
inside the passenger compartment.
Press e to lock.
Press c to unlock.
52Seats, restraintsAirbag deactivation
The front passenger airbag system
must be deactivated if a child restraint system is to be fitted on this seat. The
side airbag and curtain airbag
systems, the belt pretensioners and
all driver airbag systems will remain
active.
The front passenger airbag system
can be deactivated via a key-
operated switch on the passenger
side of the instrument panel.
Use the ignition key to choose theposition:* OFF:front passenger airbag is
deactivated and will not
inflate in the event of a
collision. Control indicator
* OFF illuminates
continuously in the centre
console. A child restraint
system can be installed in
accordance with the chart
Child restraint installation
locations 3 55. No adult
person is allowed to occupy
the front passenger seatV ON:front passenger airbag is
active. A child restraint
system must not be
installed9 Danger
Risk of fatal injury for a child using
a child restraint system on a seat
with activated front passenger
airbag.
Risk of fatal injury for an adult
person on a seat with deactivated
front passenger airbag.
If the control indicator V illuminates
for approx. 60 seconds after the
ignition is switched on, the front
passenger airbag system will inflate
in the event of a collision.
If both control indicators are
illuminated at the same time, there is
a system failure. The status of the system is not discernible, therefore
no person is allowed to occupy the
front passenger seat. Contact a
workshop immediately.
Change status only when the vehicle
is stopped with the ignition off.
Status remains until the next change.
74Instruments and controlsPull lever. Washer fluid is sprayed
onto the windscreen and the wiper wipes a few times.
If the headlights are on, washer fluid
is also sprayed onto the headlights,
provided that the lever is pulled
sufficiently long. Afterwards, the
headlight washer system is
inoperable for 5 wash cycles or until
engine or headlights have been
switched off and on again.
Rear window wiper/washerPress the rocker switch to activate the
rear window wiper:upper position:continuous
operationlower position:intermittent
operationmiddle position:off
Push lever. Washer fluid is sprayed
onto the rear window and the wiper
wipes a few times.
Do not use if the rear window is
frozen.
Switch off in car washes.
The rear window wiper comes on
automatically when the windscreen
wiper is switched on and reverse gear
is engaged.
Activation or deactivation of this
function can be changed in the
Settings menu in the Info-Display.
Vehicle personalisation 3 103.
The rear window washer system is deactivated when the fluid level is too
low.
Outside temperature
Instruments and controls75A drop in temperature is indicated
immediately and a rise in temperature
after a time delay.
If outside temperature drops to 3 °C,
a warning message is displayed in the Driver Information Centre with
Uplevel-Combi-Display.
9 Warning
The road surface may already be
icy even though the display
indicates a few degrees above 0
°C.
Clock
Date and time are shown in the
Info-Display.
Time and date settings
CD 400plus/CD 400/CD 300
Press CONFIG . The menu Settings is
displayed.
Select Time Date .
Selectable setting options:
● Set time: Changes the time
shown on the display.
● Set date: Changes the date
shown on the display.
● Set time format : Changes
indication of hours between 12 h
and 24 h.
● Set date format : Changes
indication of date between MM/
DD/YYYY and DD.MM.YYYY .
● Display clock : Switches on/off
indication of time on the display.
● RDS clock synchronization : The
RDS signal of most VHF
transmitters automatically sets
the time. RDS time
synchronisation can take a few
minutes. Some transmitters do
not send a correct time signal. In
such cases, it is recommended to
switch off automatic time
synchronisation.
Vehicle personalisation 3 103.
Time and date settings
Navi 950/Navi 650/CD 600
Press CONFIG and then select the
Time and Date menu item to display
the respective submenu.
82Instruments and controlsThe remaining engine oil life duration
is displayed in percent in the Driver
Information Centre.
Reset Press SET/CLR on turn signal lever
for several seconds to reset. The
remaining engine oil life duration
page must be active. Switch on
ignition, but not the engine.
The system must be reset every time
the engine oil is changed, to ensure
proper functionality. Seek the
assistance of a workshop.
Next service When the system has calculated that
engine oil life has diminished, a
warning message appears in the
Driver Information Centre. Have
engine oil and filter changed by a
workshop within one week or
300 miles (whichever occurs first).
Driver Information Centre 3 91.
Service information 3 251.Control indicators
The control indicators described are
not present in all vehicles. The
description applies to all instrument
versions. Depending on the
equipment, the position of the control indicators may vary. When the
ignition is switched on, most control
indicators will illuminate briefly as a
functionality test.
The control indicator colours mean:red:danger, important reminderyellow:warning, information, faultgreen:confirmation of activationblue:confirmation of activationwhite:confirmation of activation
100Instruments and controlsVehicle 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
When starting the engine or whilst driving
Only one warning chime will sound at a time.
The warning chime regarding
unfastened seat belts has priority
over any other warning chime.
● 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 awarning code appears in the
Driver Information Centre.
● 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.
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 electric 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.
104Instruments and controlsThe following settings can be
selected by turning and pressing the
multifunction knob:
● Sport mode settings
● Languages
● Time Date
● Radio settings
● Phone settings
● Vehicle settings
In the corresponding submenus the
following settings can be changed:
Sport mode settings
The driver can select the functions which will be activated in Sport mode
3 155.
● Sport suspension : Damping
becomes harder.
● Sport powertrain performance :
Accelerator pedal and gear
change characteristics become
more responsive.
● Sport steering : Steering support
is reduced.
● Swap backlight colour main
instr. : Changes the instrument
illumination colour.Languages
Selection of the desired language.
Time Date
See Clock 3 75.
Radio settings
See description in the Infotainment
manual for further information.
Phone settings
See description in the Infotainment
manual for further information.
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 is either always ON or
always OFF.
Auto rear demist : Activates
heated rearwindow
automatically.