26Keys, doors and windowsRadio remote control
Used to operate:■ Central locking system,
■ Anti-theft locking system,
■ Anti-theft alarm system,
■ Power windows.
The radio remote control has a range of approx. 5 metres. This range can
be affected by outside 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 30.
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.
Key with fixed key section
Have the battery replaced by a
workshop.
Keys, doors and windows27
Radio remote control
synchronisation After replacing the battery, unlock the
door with the key in the driver's door
lock. The radio remote control will be
synchronised when you switch on the
ignition.
Memorised settings
Whenever the vehicle is locked the
last settings are automatically saved
specifically for the used key:
■ Electronic climate control,
■ Info-Display,
■ Infotainment system,
■ Instrument panel illumination.
The saved settings are automatically
used next time that key is used for
unlocking.Open&Start system
Makes operation of the following
possible without the use of the
mechanical key
■ Central locking system,
■ Anti-theft locking system,
■ Anti-theft alarm system,
■ Power windows,
■ Ignition and starter.
The electronic key simply needs to be in the driver's possession.
Press the Start/Stop button. The
ignition is switched on. The
immobiliser and steering wheel lock
are deactivated.
To start the engine press and hold the
Start/Stop button whilst applying both
the brake and clutch pedals.
Automatic transmission: the engine
can only be started with the selector
lever in P or N.
The engine and the ignition are
switched off by pressing the
Start/Stop button again. The vehicle
must be stationary. The immobiliser is
activated at the same time.
28Keys, doors and windows
If the ignition has been switched off
and the vehicle is stationary, the
steering wheel lock activates
automatically when the driver's door
is opened or closed.
Control indicator 0 3 92.
Notice
Do not put the electronic key in the
load compartment or in front of the
Info-Display.
The sensor fields in the door handles
must be kept clean to ensure
unrestricted functionality.
If the battery is discharged, the
vehicle must not be towed, tow-
started or jump-started as the
steering wheel lock cannot be
disengaged.Radio remote control
The electronic key likewise has a
radio remote control feature.
Emergency operation
If the radio remote control also fails,
the driver's door can be locked or
unlocked with the emergency key
contained in the electronic key: press locking mechanism and remove the
cap by applying light pressure. Push
emergency key towards the outside
over the detent and remove.
Keys, doors and windows29
The emergency key can only lock or
unlock the driver's door. Unlocking the entire vehicle 3 30. On vehicles
with anti-theft alarm system, the
alarm may be triggered when the
vehicle is unlocked. Deactivate the
alarm by switching on the ignition.Hold the electronic key at the marked
position and press the Start/Stop
button.
To switch off the engine, press the
Start/Stop button for at least
2 seconds.
Lock the driver's door with the
emergency key. Locking the entire vehicle 3 30.
This option is intended for
emergencies only. Seek the
assistance of a workshop.
Replacing battery in electronic
key
Replace the battery as soon as the
system no longer operates properly
or the range is reduced. The need for
battery replacement is indicated by
InSP3 in the service display or by a
check control message in the
Info-Display 3 101.
Batteries do not belong in household
waste. They must be disposed of at an appropriate recycling collection
point.
30Keys, doors and windows
To replace the battery, press the
locking mechanism and remove the
cap by applying light pressure. Press
the cap on the other side outward.
Replace the battery (battery type
CR 2032), noting the installation
position. Engage caps.
Radio remote control
synchronisation
The radio remote control
synchronises itself automatically
during every starting procedure.
Fault
If the central locking cannot be
operated or the engine cannot be
started, the cause may be one of the
following:
■ Fault in remote control 3 26,
■ electronic key out of reception range.
To rectify the cause of the fault,
change the position of the electronic
key.
Central locking system Unlocks and locks doors, load
compartment and fuel filler flap.
A pull on an interior door handle
unlocks the entire vehicle and opens
the door.
Notice
In the event of an accident of a
certain severity, the vehicle unlocks
automatically.Unlocking
Radio remote control
Press button q.
36Keys, doors and windows
During the first 10 seconds of anti-
theft alarm system activation:LED illu‐
minates=Test, ignition delay,LED
flashes
quickly=Door, load
compartment or bonnet open, or system fault.
After the first 10 seconds of anti-theft
alarm system activation:
LED flashes
slowly=System active,LED comes on for approx. 1 second=Switch off
function.
Seek the assistance of a workshop in
the event of faults.
Deactivation
Unlocking the vehicle deactivates the anti-theft alarm system.
Alarm When triggered, the alarm gives off
an acoustic signal (horn) and a visual
signal (hazard warning flashers). The number and duration of which are
stipulated by legislation.
The alarm siren can be silenced by
pressing a button of the radio remote control or by switching on the ignition.
The anti-theft alarm system can be
deactivated only by pressing button
p or by switching on the ignition.
If the vehicle's battery is to be
disconnected (e.g. for maintenance
work), the alarm siren must be
deactivated as follows: switch the
ignition on then off, then disconnect
the vehicle's battery within
15 seconds.
Immobiliser The system checks whether the
vehicle is allowed to start with the key
being used. If the transponder in the
key is recognised, the engine can be
started.
The immobiliser is going to be
activated automatically after the key
has been removed from the ignition
switch or when the engine is switched
off by pressing the Start/Stop button.
Control indicator A 3 89.Notice
The immobiliser does not lock the
doors. You should always lock the
vehicle after leaving it and switch on the anti-theft alarm system 3 30,
3 34.
Instruments and controls101Vehicle messages
Messages are given via the
instrument panel display or as
warning and signal buzzers. Check
control messages appear on the
Info-Display. Some appear in an
abbreviated form. Confirm warning
messages with the multifunction knob
3 94, 3 97.
Warning chimes When starting the engine or
whilst driving ■ If the electronic key is not present or is not recognised.
■ 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 the parking brake applied.
■ If the speed programmed at the factory is exceeded.
■ If the vehicle has automated manual transmission and the
driver's door is opened when theengine is running, a gear is
engaged and the foot brake is not
depressed.
When the vehicle is parked and
the driver's door is opened ■ When the key is in the ignition switch.
■ With exterior lights on.
■ With Open&Start system and automatic transmission, if the
selector lever is not in P.
■ For automated manual transmission, if the parking brake is
not applied and no gear is engaged when the engine is switched off.
Battery voltage
Low battery voltage in radio remote
control or electronic key. On vehicles
without check control, the message
InSP3 appears in the instrument
panel display. Replace the battery
3 26, 3 27.Brake light switch
Brake light does not come on during
braking. Have the cause of the fault
remedied immediately by a
workshop.
Engine cooling level
Low fluid level in engine cooling
system. Check coolant level 3 155.
158Vehicle care
Meaning of symbols:■ No sparks, naked flames or smoking.
■ Always shield eyes. Explosive gases can cause blindness or
injury.
■ Keep the vehicle battery out of the reach of children.
■ The vehicle battery contains sulphuric acid which could cause
blindness or serious burn injuries.
■ See the Owner's Manual for further
information.
■ Explosive gas may be present in the vicinity of the vehicle battery.Diesel fuel system
bleeding
If the tank has been run dry, the diesel fuel system must be bled. Switch on
the ignition three times for
15 seconds at a time. Then crank the
engine for a maximum of
40 seconds. Repeat this process after
no less than 5 seconds. If the engine
fails to start, seek the assistance of a workshop.Wiper blade replacement
Service setting for front windscreen wipers
Switch off the ignition but do not
remove ignition key or open driver's
door.
Within 4 seconds, push the wiper
lever down and release as soon as
the wipers are vertical.