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22Keys, doors and windowsKey with foldaway key section
Press button to extend. To fold the
key, first press the button.
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 3 104.
Radio remote control battery
replacement
Replace the battery as soon as the
range reduces.
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104Instruments 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 exhaust 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 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 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
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126LightingExit 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
3 104.
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.