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24Keys, doors and windows
Used to operate:■ Central locking system
■ Anti-theft locking system
■ Anti-theft alarm system
■ Power windows
■ Sunroof
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 25.
Basic settings Some settings can be changed in the menu Settings in the Info-Display.
Vehicle personalisation 3 134.
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 by switching on the
ignition.
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Instruments and controls131
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
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 a warningcode appears in the Driver
Information Centre.
■ If the parking assist detects an object.
■ If unintended lane change occurs.
■ If the reverse gear is engaged and the rear end carrier extended.
■ 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 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.
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Lighting153
The lighting switches off immediately
when the ignition key is turned to
position 1 3 165.
Activation or deactivation of this
function can be changed in the menu Settings in the Info-Display. Vehicle
personalisation 3 134.
The settings can be saved for the key being used 3 25.
The following lights will additionally
switch on when the driver's door is
opened:
■ all switches
■ Driver Information Centre
■ door pocket lights
■ console lights
Exit lighting
The following lights switch on if the
key is removed from the ignition
switch:
■ Interior lights
■ Instrument panel light (only when it
is dark)■ Door and console lights
■ Puddle lights
They will switch off automatically after
a delay and will be activated again if
the driver's door is opened.
Headlights, tail lights, reversing lights
and number plate lights illuminate the
surrounding area for an adjustable
time after leaving the vehicle.
Switching on
1. Switch off ignition.
2. Remove ignition key.
3. Open driver's door.
4. Pull turn signal lever.
5. Close driver's door.
If the driver's door is not closed the
lights switch off after two minutes.
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 menu Settings in the Info-Display.
Vehicle personalisation 3 134.
The settings can be saved for the key being used 3 25.
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.