Keys, doors and windows23Depending on the version, the
electronic key system enables a
keyless operation of the following functions:
● central locking system 3 24
● tailgate unlocking
● ignition switching on and starting the engine 3 146
● headlight activation
The electronic key simply needs to be
on the driver's person.
Additionally, the electronic key
includes the functionality of the radio
remote control 3 21.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Replacing battery in electronic
key
Replace the battery as soon as the
system no longer operates properly
or the range is reduced.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
1. Remove the cover.
2. Extract the flat battery from its location.
3. Replace battery with a battery ofthe same type. Pay attention to
the installation position.
4. Clip the cover in place.
Fault
If the central locking cannot be
operated or the engine cannot be
started, the cause may be one of the
following:
● Fault in electronic key.
● Electronic key is out of reception range.
● The battery voltage is too low. ● 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.
To rectify the cause of the fault,
change the position of the electronic
key.
Manual unlocking 3 24.
Instruments and controls91Pull lever. Washer fluid is sprayed
onto the windscreen and the wiper
wipes a few times.
Washer fluid 3 214.
Rear window wiper and washer
Rear window wiper
Turn outer cap to activate the rear
window wiper:
OFF:offINT:intermittent operation
Do not use if the rear window is
frozen.
Switch off in car washes.
The rear window wiper comes on
automatically when the windscreen
wiper is switched on and reverse gear
is engaged.
Activation or deactivation of this
function can be changed in the
Vehicle personalisation menu 3 116.
Rear window washer
Push lever.
Washer fluid is sprayed onto the rear
window and the wiper wipes a few
times.
The rear window washer system is
deactivated when the fluid level is
low.
Washer fluid 3 214.
Outside temperature A drop in temperature is indicated
immediately and a rise in temperature
after a time delay.
Illustration shows an example.
If outside temperature drops to 3 °C,
a warning message is displayed in the Driver Information Centre.
100Instruments and controlsService displayThe service system informs when to
change the engine oil and filter or a
vehicle service is required. Based on
driving conditions, the interval at
which an engine oil and filter change
is required can vary considerably.
Service information 3 249.
A required service due is displayed in the Driver Information Centre forseven seconds after switching on the
ignition.
If no service is required for the next
1800 miles or more no service
information appears in the display.
If service is required within the next
1800 miles, the remaining distance or
time duration is indicated for several
seconds. Simultaneously symbol <
lights up permanently as reminder.
If service is required in less than
600 miles, < flashes and then lights up
permanently. Remaining distance or
time duration is indicated for several
seconds.Overdued service is indicated by a
message in the Driver Information
Centre which indicates the overdued
distance. < flashes and then lights up
permanently until service is executed.
Reset of service interval
After each service, the service
indicator must be reset to ensure
proper functionality. It is
recommended to seek the assistance of a workshop.
If service is executed by yourself,
operate as following:
● switch off ignition
● press and hold button CHECK
● switch on ignition, the distance indication begins a countdown
● when the display indicates =0,
release the button
< disappearsRetrieving service information
To retrieve the status of the service
information at any time press button
CHECK . The service information is
displayed for a few seconds.
Service information 3 249.
Control indicators The control indicators described are
not present in all vehicles. The
description applies to all instrument
versions. Depending on the
equipment, the position of the control indicators may vary. When the
Instruments and controls115Vehicle messages
Messages are indicated in the Driver
Information Centre, in some cases
together with a warning chime.
Press SET / CLR to confirm a
message.
Vehicle and service messages The vehicle messages are displayed
as text. Follow the instructions given
in the messages.
Messages in the
Colour Info Display
Some important messages may
appear additionally in the
Info Display. Some messages only
pop-up for a few seconds.
Warning chimes
If several warnings appear at the same time, only one warning chime
will sound.
When starting the engine or whilst driving
The warning chime regarding not
fastened seat belts has priority over
any other warning chime.
● If a seat belt is not fastened.
● If a door or the tailgate is not fully
closed.
● If a certain speed is exceeded with parking brake applied.
● If cruise control deactivates automatically.
● If a programmed speed or speed
limit is exceeded.● If a warning message appears in the Driver Information Centre.
● If the electronic key is not in the passenger compartment.
● If the parking assist detects an object.
● If an 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.● If any condition for a restart of the
engine is not fulfilled.
Battery voltage When the vehicle battery voltage isrunning low, a warning message will
appear in the Driver Information
Centre.
Instruments and controls117●Comfort
Ambient lighting : Adjusts the
brightness of the ambient
lighting.
Rear wiper in reverse gear :
Activates or deactivates
automatic switching on of the
rear window wiper when reverse
gear is engaged.
● Vehicle
Unlocking boot only : Activation /
deactivation.
Plip action : Driver / all doors.
● Security
Fatigue Detection system :
Activates or deactivates the
driver drowsiness system.
● Driving assistance
Speed recommendation :
Activates or deactivates the
function.Colour Info Display Multimedia
Press : to open settings menu.
Use touch buttons to operate the
display.
Unit settings
Select System configuration .
Change units for Distance and fuel
consumption and Temperature .
Language settings
Select Language .
Change language by touching the
respective entry.
Driving function
Press Í.
Select Driving function .
In the corresponding submenus the
following settings can be changed:
● Park Assist : Activates advanced
park assist, a parking maneuver
can be selected.
● Parking sensors : Activates or
deactivates the parking sensors.
● Blind spot sensors : Activates or
deactivates side blind spot alert.
● Under-inflation initialization :
Initialises the tyre under-inflation
detection system.
● Diagnostic : Shows alert
messages of the diagnostic
system.
118Instruments and controlsVehicle settings
Press Í.
Select Vehicle settings .
In the corresponding submenus the
following settings can be changed:
● Parking
Prevention of door mirror folding :
Activates or deactivates the
automatic folding of the exterior
mirrors.
Rear wiper in reverse : Activates
or deactivates automatic
switching on of the rear window
wiper when reverse gear is
engaged.
● Headlights
Guide-me-home lighting :
Activates or deactivates the
function and adjusts its duration.
Welcome lighting : Activates or
deactivates the function and
adjusts its duration.
Directional headlamps : Activates
or deactivates the cornering
lights.
● Comfort
Mood lighting : Adjusts the
brightness of the ambient
lighting.
● Safety
Speed reading/recommendation :
Activates or deactivates the
speed limit information by traffic sign recognition.
Active safety brake : Activates or
deactivates active emergency
braking, the alert distance for risk of collision can be selected.
Mirror adaptation in reverse :
Adjusts the exterior mirrors if
reverse gear is engaged to
facilitate sidewalks visibility.Driver's attention warning :
Activates or deactivates the
driver drowsiness system.
Colour Info Display
Multimedia Navi Pro
Press : to open settings menu.
Use touch buttons to operate the
display.
Unit settings
Select System settings .
Change units for Distance and fuel
consumption and Temperature .
Confirm with G.
164Driving and operatingESC and TC are also reactivated the
next time the ignition is switched on.
Fault
If there is a fault in the system, the control indicator b illuminates
continuously and a message appears
in the Driver Information Centre. The
system is not operational.
Have the cause of the fault remedied
by a workshop.
Descent control system
The descent control system allows
the vehicle to travel at a low speed
without depressing the brake pedal.
The vehicle will automatically
decelerate to a low speed and remain at that speed when the system is
activated. Some noise or vibration
from the brake system may be
apparent when the system is active.Caution
Use only when descending steep
grades while driving off-road. Do
not use when driving on normal
road surfaces. Unnecessary
usage of the DCS function, such
as while driving on normal roads,
may damage the brake system
and the ESC function.
Activation
Notice
If hill descent control is active, active emergency braking is automatically
deactivated.
The systems is only available for
slopes greater than 5%.
At speeds below approx. 30 mph,
press ò. The system can also be
activated when the vehicle is
stationary with the engine running. The control indicator ò in the
instrument cluster is illuminated in
green to show the system is
activated.
When the vehicles starts its descent, the system controls the speed of the
vehicle; accelerator and brake pedals can be released.
● If the gearbox is in first or second
gear, the speed decreases andthe control indicator in the
instrument cluster flashes
rapidly.
● If the gearbox is in neutral or the clutch pedal is released, the
speed decreases and the control
indicator in the instrument cluster
flashes slowly.
If the system is operating, the brake
lights automatically come on.
If the speed exceeds 18 mph,
regulation is paused. The ò indicator
light in the instrument cluster changes
to grey. However, the LED of the ò
button is still illuminated. Regulation
176Driving and operating● The electric parking brake isapplied.
● The Traction Control system or Electronic Stability Control is
deactivated or operating.
● The selector lever of automatic transmissions is neither in D nor
in M.
● A fault is detected in the Electronic Stability Control.
Switching off the system
Press C, the adaptive cruise control
mode is disabled and the adaptive
cruise control indication extinguishes
in the Driver Information Centre.
Pressing ß to activate the speed
limiter deactivates adaptive cruise
control.
Switching off the ignition deletes the
stored set speed.
Driver's attention ● Use the adaptive cruise control carefully on bends or mountain
roads, as it can lose the vehicle
ahead and needs time to detect it
again.● Do not use the system on slippery roads as it can create
rapid changes in tyre traction
(wheel spinning), so that you
could lose control of the vehicle.
● Do not use the system when the spare wheel is in use.
System limits9 Warning
The system's automatic brake
force does not permit hard braking and the braking level may not be
sufficient to avoid a collision.
● After a sudden lane change, the system needs a certain time to
detect the next preceding
vehicle. So if a new vehicle is
detected, the system may
accelerate instead of braking.
● The adaptive cruise control does ignore the oncoming traffic.
● The adaptive cruise control does not consider pedestrians and
animals for braking and driving
off.
● The adaptive cruise control considers stopped vehicles only
at low speed.
● Do not use the adaptive cruise control when towing a trailer.
● Do not use the adaptive cruise control on roads with an incline ofmore than 10%.
Bends
The adaptive cruise control calculates
a predicted path based on the
centrifugal force. This predicted path
considers the current bend
characteristic, but cannot consider a
future bend change. The system may lose the current vehicle ahead or
consider a vehicle which is not in the
actual lane. This can happen when
entering or exiting a bend or if the
bend gets stronger or weaker. If it no