22Keys, doors and windowsKey with foldaway key section
Press button to extend. To fold the
key, first press the button.
Car Pass The Car Pass contains security
related vehicle data and should
therefore be kept in a safe place.
When the vehicle is taken to a
workshop, this vehicle data is needed
in order to perform certain operations.
Radio remote control
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 is exceeded.
● Battery voltage is 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 23.
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.
Keys, doors and windows23
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
sideways. Replace the battery
(battery type CR 2032), paying
attention to the installation position.
Close the unit and synchronise.
Radio remote control
synchronisation
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.
Memorised settings
Whenever the key is removed from
the ignition switch, the following
settings are automatically memorised by the key:
● lighting
● presets for Infotainment system
● central locking system
● Sport mode settings
● comfort settingsThe saved settings are automatically
used the next time the memorised key
is inserted into the ignition switch and
turned to position 1 3 137.
Graphic-Info-Display
A precondition is that Personalization
by driver is activated in the personal
settings. This must be set for each
key used.
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.
Note
In the event of an accident in which
airbags or belt pretensioners are
deployed, the vehicle is
automatically unlocked.
30Keys, doors and windowsAlarmWhen triggered, the alarm 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 on the radio
remote control or by switching on the
ignition.
The anti-theft alarm system can be
deactivated only by pressing 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
unlocked with the radio remote
control. Additionally, a warning
message is displayed in the Driver
Information Centre after switching on
the ignition.
Vehicle messages 3 101.
If the vehicle's battery is to be
disconnected (e.g. for maintenance
work), the alarm siren must be
deactivated as follows: Switch theignition 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 the 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 repeat the
start attempt.
If the control indicator continues
flashing, attempt to start the engine
using the spare key and seek the
assistance of a workshop.
Note
The immobiliser does not lock the
doors. You should always lock the
vehicle after leaving it.
Switch on the anti-theft alarm
system 3 23, 3 28.Control indicator d 3 94.
Keys, doors and windows35
Opening● Press c once briefly: the doors
are unlocked.
● Press c once more for two
seconds: the windows move
down automatically. Press c
longer: the soft top will be
opened. Press and hold c until
soft top is completely opened.
Release c during opening of the soft
top: movement stops for 10 seconds;
pressing c once more continues
opening.
Closing ● Press e once briefly: the doors
are locked.
● Press e once more for longer: the
soft top and the windows will be
closed. Press and hold e until soft
top is completely closed.
Release e during closing of the
soft top: movement stops for
10 seconds; pressing e once
more continues closing.
● If the soft top is already closed but windows are opened:
pressing e for two seconds will
close the windows.
Confirmation
Completed opening or closing of the soft top is confirmed by the hazard
warning flashers.
Overload If 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 3 101.
Activate the window electronics for
each window, beginning with the rear windows, as follows:
1. Soft top must be closed.
2. Close doors.
3. Switch on ignition.
4. Pull switch to the second detent until the window starts to close,
and hold for an additional
4 seconds.
5. Push switch to the second detent until the window starts to open
automatically.
6. Repeat for each window.
38Keys, doors and windowsClose soft top
Press and hold e until the soft top, the
soft top lid and the windows are completely closed. All windows will be
opened at first during this operation.
Confirmation of operation
Complete opening or closing of the
soft top with the remote control is confirmed by the hazard warning
flashers.
Safety stop
The button on the remote control or
the switch in the centre console must
be actuated until the soft top is in its
respective end position. Releasing
the button or the switch during
operation stops soft top movement
immediately. The soft top remains in
intermediate position only for a
certain time. After this time a warning chime sounds, the hydraulic pressure
in the system decreases and the soft
top can start to move by itself.
Actuating button or switch once more
continues operation.
Requirements for operation ● Vehicle is stationary or driving with a speed up to 50 km/h.
● Load compartment partition isfolded out, pass-through flap is
closed 3 73.
● 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).
Instruments and controls1031. Switch off immediately anyelectrical 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 23.
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 400plus/CD 400/CD 300
Press CONFIG . The menu Settings is
displayed.
124LightingExit 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
3 103.
The settings can be saved for the key
being used 3 23.
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
● fanIn 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 operating137Starting and operating
New vehicle running-in
Do not brake unnecessarily hard for
the first few journeys.
During the first drive, smoke may
occur because of wax and oil
evaporating off the exhaust system.
Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period fuel and
engine oil consumption may be
higher and the cleaning process of
the diesel particle filter may take
place more often. Autostop may be
inhibited to allow for charging the
vehicle battery.
Diesel particle filter 3 142.Ignition switch positions0:ignition off1:steering wheel lock released,
ignition off2:ignition on, for diesel engine:
preheating3:starting
Retained power off
The following electronic systems can
work until the driver's door is opened
or for a maximum of 10 minutes after
the ignition is switched off:
● power windows
● power outlets
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 position2 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'.