20Keys, doors and windows
Used to operate:■ Central locking system
■ Anti-theft locking system
■ Anti-theft alarm system
■ Soft top
■ Power windows
The radio remote control has a range of approx. 20 metres. It can be
restricted by external influences. The
hazard warning flashers confirm
operation.
Handle with care, protect from
moisture and high temperatures and avoid unnecessary operation.
Fault If the central locking system cannot
be operated with the radio remote
control, it may be due to the following:
■ Range exceeded
■ Battery voltage too low
■ Frequent, repeated operation of the
radio remote control while not in range, which will require re-
synchronisation■ 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
Unlocking 3 21.
Basic settings Some settings can be changed in the menu Settings in the Info-Display.
Vehicle personalisation 3 102.
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.
Radio remote controlsynchronisation
After replacing the battery, unlock the
door with the key in the driver's door
lock. The radio remote control is
synchronised when the ignition is
switched on.
Keys, doors and windows27
1. Close boot lid, bonnet, windowsand soft top.
2. Press button o. LED in the
button o illuminates for a
maximum of 10 minutes.
3. Close doors.
4. Activate the anti-theft alarm system.
To prevent false alarms passenger
compartment monitoring is
deactivated if the soft top is open. The
LED in the button o does not
illuminate.
If only the windows are open,
passenger compartment monitoring
operates restricted and the LED in the button o illuminates.
Status message is displayed in the
Driver Information Centre.Status LED
Status LED is integrated in the sensor
on top of the instrument panel.
Status during the first 30 seconds of
anti-theft alarm system activation:
LED illu‐
minates=test, arming delay.LED
flashes
quickly=doors, boot lid, soft top
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.
Deactivation
Unlocking the vehicle by pressing c
deactivates the anti-theft alarm
system. Long press will activate soft
top opening.
Alarm When triggered, the alarm sounds via a separate battery-backed power
sounder, 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 on 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 the hazard warning
lights. They will flash quickly three
times the next time the vehicle is
32Keys, doors and windows
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 with safety function disabled. To
stop movement, release the switch.
Comfort operating with the
remote control The windows and the soft top can be
operated remotely from outside the
vehicle.Opening
■ Press button c once briefly: the
doors are unlocked.
■ Press button c once more for two
seconds: the windows move down
automatically. Press button c
longer: the soft top will be opened.
Hold button pressed until soft top is
completely opened.
Release button during opening the
soft top: movement stops for
10 seconds; pressing button once
more continues opening.
Closing ■ Press button e once briefly: the
doors are locked.
■ Press button e once more longer:
the soft top and the windows will be
closed. Hold button pressed until
soft top is completely closed.
Release button during closing the
soft top: movement stops for10 seconds; pressing button once
more continues closing.
■ If the soft top is already closed but windows are opened: pressing
button e for two seconds will close
the windows.
Confirmation
Complete opening or closing of the
soft top is confirmed by the hazard
warning flashers.
OverloadIf the windows are repeatedly
operated within short intervals, the window operation is disabled for
some time.
Initialising the power windows
If the windows cannot be closed
automatically (e.g. after
disconnecting the vehicle battery), a
warning message is displayed in the
Driver Information Centre.
Vehicle messages 3 100.
36Keys, doors and windows
■ Load compartment partition isfolded out, pass-through flap isclosed 3 71.
■ Soft top lid is engaged in closed position.
■ Boot lid is completely closed.
■ Outside temperature is not lower than -7 °C for opening and -10 °C
for closing.
■ Vehicle battery voltage is sufficient.
■ The system is not overloaded by repeated operation (max. 5
complete cycles in succession).If any of these requirements are not fulfilled, a warning chime sounds
and a message appears in the
Driver Information Centre when the
switch is actuated and the soft top
will not open or close.
■ There must be no objects in front of
the rear window or in the pivot area of the soft top and the soft top lid.
If the automatic drive is not
operational when the soft top is open, execute a manual closing process,
see the following instructions in
"Manual closing in the event of a
system fault".
General hints
Note■ Always actuate the operation switch until the acoustic signal
sounds or the hazard warning
flashers illuminate, to ensure that
the soft top is completely opened
or closed.
■ The soft top can be held in an intermediate position to facilitate
cleaning of hood spaces and
gaskets. Release the switch in the
centre console during operation to
stop soft top movement in
intermediate position for a
maximum of 7 minutes when
ignition is on. After this time a warning chime sounds, the
hydraulic pressure in the system
decreases and the soft top can
start to move by itself.
■ Do not open the soft top if it is wet,
frozen or dirty.
■ Activating the soft top on uneven ground can lead to malfunctions
and damage.
■ Vehicle care 3 220.
102Instruments and controls
■ If a warning message appears inthe Driver Information Centre.
■ If the parking assist detects an object.
■ If 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 ■ 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 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 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.Vehicle personalisation
The vehicle's behaviour can be
personalised by changing the settings in the Info-Display.
Some of the personal settings for
different drivers can be memorised
individually for each vehicle key.
Memorised settings 3 21.
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.
Personal settings in the
Graphic-Info-Display
CD 300/CD 400/CD400plus
122Lighting
Exit lighting is switched off
immediately if the turn signal lever is
pulled while the driver's door is open.
Activation, deactivation and duration of this function can be changed in the Info-Display. Vehicle personalisation
3 102.
The settings can be saved for the key
being used 3 21.
Battery discharge
protection
Vehicle battery state of charge function
The function guarantees longest
vehicle battery life via a generator with controllable power output and
optimised power distribution.
To prevent discharge of the vehicle
battery when driving, the following
systems are reduced automatically in two stages and finally switched off:
■ Auxiliary heater
■ Heated rear window and mirrors■ Heated seats
■ Fan
In the second stage, a message
which confirms activation of the
vehicle battery discharge protection
will be displayed in the Driver
Information Centre.
Switching off electric lights
To prevent discharge of the vehicle
battery when the ignition is switched
off, some interior lights are switched
off automatically after some time.
Driving and operating135
■ Power windows
■ Power outlets
Power to the Infotainment system will continue to operate for 30 minutes oruntil the key is removed from theignition switch, regardless of whether
any door will be opened.
Starting the engine
Manual transmission: operate clutch.
Automatic transmission: operate
brake and move the selector lever to
P or N.
Do not operate the accelerator pedal.
Diesel engine: turn the key to position 2 for preheating until control
indicator ! extinguishes.
Turn the key briefly to position 3 and
release: an automatic procedure
operates the starter with a short delay
as long as the engine is running, see
Automatic Starter Control.
Before restarting or to switch off the
engine, turn the key back to position
0 .
During an Autostop, the engine can
be started by depressing the clutch
pedal.Starting the vehicle at low
temperatures
Starting the engine without additional heaters is possible down to -25 °С for
diesel engines and -30 °C for petrol
engines. Required is an engine oil
with the correct viscosity, the correct
fuel, performed services and a
sufficiently charged vehicle battery.
With temperatures below -30 °C the
automatic transmission needs a
warming phase of approx. 5 minutes.
The selector lever must be in position P .
Automatic Starter Control
This function controls the engine
starting procedure. The driver does
not have to hold the key in position 3.
Once applied, the system will go on starting automatically until the engine
is running. Because of the checking
procedure, the engine starts running after a short delay.
Driving and operating143
KickdownIf the accelerator pedal is presseddown completely in automatic mode, the transmission shifts to a lower gear
depending on engine speed.
Fault
In the event of a fault a vehicle
message is displayed in the Driver
Information Centre. Vehicle
messages 3 100.
The transmission no longer shifts automatically. Continued travel is
possible with manual shifting.
Only the highest gear is available.
Depending on the fault, 2nd gear may also be available in manual mode.
Shift only when vehicle is at a
standstill.
Have the cause of the fault remedied by a workshop.Interruption of power
supply
In the event of an interruption of
power supply, the selector lever
cannot be moved out of the P
position. The ignition key cannot be
removed from the ignition switch.
If the vehicle battery is discharged,
start the vehicle using jump leads
3 216.
If the vehicle battery is not the cause
of the fault, release the selector lever.
1. Apply the parking brake.2. Release the selector lever trim from the centre console at the
front, fold it upwards and rotate it
to the left.
3. Insert a screwdriver into the opening as far as it will go and
move the selector lever out of P or
N . If P or N is engaged again, the
selector lever will be locked in
position again. Have the cause of
the power supply interruption
remedied by a workshop.
4. Mount the selector lever trim onto
the centre console and refit.