Vehicle submenu
Setting the windshield wiper sensitivity
You can use theWipe sensorfunction to set
the sensitivity of the rain/ light sensor.
Using the steering wheel buttons
XPress the VorU button repeatedly
until the Settingsmenu appears in the dis-
play.
XPress the 9button to switch to the sub-
menu selection.
XPress the WorX button to select the
Vehiclesubmenu.
XPress the 9button to select the Wipesensorfunction.
The selection marker is on the current setting.
XPress the WorX button to adjust the
sensitivity of the rain/light sensor.
The levels are graded as follows:
RLevel 1: high sensitivity – wiping begins even
in light rain
RLevel 2: moderate sensitivity
RLevel 3: low sensitivity – wiping only begins
in heavy rain
Activating/deactivating Blind Spot Assist
Using the steering wheel buttons
XPress the VorU button repeatedly
until the Settingsmenu appears in the dis-
play.
XPress the 9button to switch to the sub-
menu selection.
XPress the WorX button to select the
Vehiclesubmenu.
XPress the 9button to select the BlindSpot Assistfunction.
The selection marker is on the current setting.
XPress the WorX button to switch Blind
Spot Assist OnorOff.
For further information about Blind Spot Assist;
see (
Ypage 141).
Heating submenu
Selecting the switch-on time for the aux-
iliary heating
Using the steering wheel buttons
XPress the VorU button repeatedly
until the Settingsmenu appears in the dis-
play.
XPress the 9button to switch to the sub-
menu selection.
XPress the WorX button to select the
Heatingsubmenu.
XPress the 9button to switch to the Aux.heat.submenu selection (Ypage 107).
The selection marker is on the current setting.
XPress the WorX button to set the
desired switch-on time.
Use the Timer off
setting to deactivate
automatic switch-on.
XPress button V.
The switch-on time is selected.
Convenience submenu
The Keyfunction allows you to define whether
settings for some submenus are stored with a
key dependence.
170On-board computer (vehicles with steering wheel buttons)
On-board computer and displays
This function pertains to theInst. cluster(instrument cluster) menu, the Lightingmenu
and the Vehiclemenu.
Using the steering wheel buttons
XPress the VorU button repeatedly
until the Settingsmenu appears in the dis-
play.
XPress the 9button to switch to the sub-
menu selection.
XPress the WorX button to select the
Conveniencesubmenu.
XPress the 9button to select the Keyfunc-
tion.
The selection marker is on the current setting.
XPress the WorX button to activate or
deactivate key dependency.
Trip computer menu
General notes
You can call up or reset statistical data for the
vehicle in the Trip computer menu.
iWhen you call up the trip computer again, it
displays the last function called up.
The units of the statistical information dis-
played are set permanently for each specific
country, and are therefore independent of the
units selected in the Settings
menu.
Trip computer "After start" or "After
reset"
Example: "After start" trip computer
:
Distance
;Time
=Average speed
?Average fuel consumption Using the steering wheel buttons
XPress the
VorU button to select
After start.
or
XPress the 9or: button to select
After reset.
The values in the After
startsubmenu refer to
the start of the journey. The values in the After
resetsubmenu refer to the last reset of the trip
computer.
The After start
trip computer function is
automatically reset if:
Rthe ignition has been switched off for more
than 4 hours.
R999 hours have been exceeded.
R9,999 miles have been exceeded.
The After
resettrip computer is automatically
reset if the value exceeds 9,999 hours or
99,999 miles.
iIf you turn the key to position 0in the igni-
tion lock or remove it, all the values are reset
after approximately four hours.
The values will not be reset if you turn the key
back to position 1or 2during this time.
Calling up the range
Using the steering wheel buttons
XPress the VorU button to select
After start.
XPress the 9or: button to select
Range.
The approximate distance which can be cov-
ered with the tank's current contents and
your current style of driving is shown.
iIf there is only a small amount of fuel left in
the fuel tank, the 7Please refuelmes-
sage is shown instead of the range.
Resetting the trip computer
Using the steering wheel buttons
XPress the VorU button to select
After start.
XPress the 9or: button to select the
function you would like to reset.
XPress and hold the 9reset button until the
values are reset to "0".
On-board computer (vehicles with steering wheel buttons)171
On-board computer and displays
Z
Redialing
The on-board computer saves the last names or
numbers dialed in the redial memory.
Using the steering wheel buttons
XUse theVorU button to select the TELmenu.
The display shows the mobile phone opera-
tional readiness symbol.
XPress the6button.
The display shows the most recently dialed
numbers or names in the redial memory.
XPress the 9or: button to select the
desired name or number.
XTo start dialing: press the6button.
The on-board computer dials the correspond-
ing phone number.
When a connection is established, the name
of the other person and/or the call duration
appear in the display.
or
XTo exit the redial memory: press the~
button.
Display messages
Notes on display messages
Important safety notes
GWARNING
No information will be displayed if either the
instrument cluster or the display is inopera-
tive.
As a result, you will not be able to see warning
and indicator lamps or information about the
driving conditions, such as speed or outside
temperature. Driving characteristics may be
impaired. Adjust your driving style and vehicle
speed accordingly.
Contact a qualified specialist workshop
immediately.
GWARNING
If service work is not carried out correctly, the operating safety of your vehicle may be affec-
ted. This could cause you to lose control of
your vehicle and cause an accident. More-
over, the safety systems may no longer be
able to protect you or others as they are
designed to do.
Always have service work carried out at a
qualified specialist workshop.
iIf you turn the key to position 2in the igni-
tion, a display check is performed. All warning
and indicator lamps (except the turn signal
indicator lamps) and the display are activa-
ted. Before starting the journey, check that
the warning and indicator lamps are operating
correctly.
Vehicles without steering wheel but-
tons
Warnings, malfunctions or additional informa-
tion may also be shown in the display. The fol-
lowing tables show all the display messages. A
warning tone sounds with certain display mes-
sages.
Vehicles with steering wheel buttons
The on-board computer shows warnings, mal-
functions or additional information in the dis-
play. A warning tone sounds with certain display
messages. Display messages of a high priority
are shown in red.
Please respond in accordance with the display
messages and follow the additional notes in this Operator's Manual.
You can hide low-priority display messages by
pressing the V,U,9or: button
on the steering wheel or the 9reset button.
You cannot hide display messages of the highest
priority. These messages will continue to be
shown in the display until their cause has been
eliminated.
The on-board computer stores certain display
messages in the message memory
(
Ypage 173).
Message memory
The on-board computer only records and shows
malfunctions and warnings from certain sys-
tems. Therefore, make sure that your vehicle is
safe to use. You could otherwise cause an acci-
dent by driving an unsafe vehicle.
Display messages173
On-board computer and displays
Z
The on-board computer stores certain display
messages. In theMessage memory menu, you
can call up stored display messages.
Using the steering wheel buttons
XPress the VorU button repeatedly
until the number of stored display messages,
e.g. 2 messages
, appears in the display.
If no malfunctions have occurred, the No
messagesmessage appears.
XScroll through the stored display messages
with the9or: button.
XTo exit the message memory menu: press
the V orU button. When you switch off the ignition, all display mes-
sages are deleted from the message memory.
You can only remove the key when it is in the
basic position.
Display messages on vehicles without steering wheel buttons
Display messagesPossible causes/consequences and
MSolutions
_ _ _
V
The activation conditions for cruise control have not been met.
You can only activate cruise control from speeds of 20 mph
(30 km/h).
or
Cruise control has been deactivated due to a malfunction.
XHave cruise control checked at a qualified specialist workshop.
NO TPMSTheNOmessage is displayed for 30 seconds. The TPMSmessage is also
displayed after 30 seconds.
The tire pressure monitor has malfunctioned.
XHave the tire pressure monitor and the wheels checked at a quali-
fied specialist workshop.
NO TPMSThe NOmessage is displayed for 30 seconds. The TPMSmessage is also
displayed after 30 seconds.
The tire pressure monitor is not receiving signals from one or more
wheels because:
Ra wheel has been replaced with the spare wheel without wheel
electronics.
Rthe maximum temperature on one of the wheel electronics units has
been exceeded.
Rthe wheel electronics are malfunctioning.
XHave wheels with suitable wheel electronics units installed at a
qualified specialist workshop.
— —TPMSThe — —message is displayed for 30 seconds. The TPMSmessage is
also displayed after 30 seconds.
The pressure is insufficient in one or more tires, or the pressures of the
individual tires differ significantly.
XCheck the tire pressure and correct it if necessary (Ypage 249).
174Display messages
On-board computer and displays
Lights
Display messagesPossible causes/consequences andMSolutions
b
Low beam left
The left-hand low beam is faulty3.
XHalogen headlamps:replace the bulb as soon as possible
(Ypage 88).
XBi-Xenon headlamps: consult a qualified specialist workshop as
soon as possible.
b
Low beam right
The right-hand low-beam headlamp is faulty3.
XHalogen headlamps: replace the bulb as soon as possible
(Ypage 88).
XBi-Xenon headlamps: consult a qualified specialist workshop as
soon as possible.
b
Cornering lt. left
The left-hand cornering light is faulty3.
XReplace the bulb as soon as possible (Ypage 88).
b
Cornering lt. right
The right-hand cornering light is faulty3.
XReplace the bulb as soon as possible (Ypage 88).
b
Lights on auto‐matic. Remove key
The automatic headlamp feature is active: the light switch is in the
à position and you have forgotten to remove the key.
XRemove the key from the ignition lock.
b
Turn signal left
The left-hand turn signal is faulty.
XChange the bulb as soon as possible in the front (Ypage 89) or rear
(Ypage 90) indicator lamp.
b
Turn signal right
The right-hand turn signal is faulty.
XChange the bulb as soon as possible in the front (Ypage 89) or rear
(Ypage 90) indicator lamp.
b
Brake lamp left
The left brake lamp is faulty3.
XReplace the bulb as soon as possible (Ypage 90).
b
Brake lamp right
The right brake lamp is faulty3.
XReplace the bulb as soon as possible (Ypage 90).
b
Third brake lamp
The high-mounted brake lamp is faulty3. This display message will only
appear if all LEDs have failed.
XConsult a qualified specialized workshop as soon as possible.
b
High beam left
The left high-beam headlamp is faulty3.
XReplace the bulb as soon as possible (Ypage 88).
3Depending on the equipment, the bulb-failure indicator may not befeatured for any lamps other than the turn
signals.
182Display messages
On-board computer and displays
Vehicle
Display messagesPossible causes/consequences andMSolutions
Ð
SteeringAssistanceFailure
The power assistance for the steering has malfunctioned. You need to
steer more forcefully.
XCarefully continue to a qualified specialist workshop and have the
steering checked immediately.
#
Battery/AlternatorVisit workshop
The battery is not being charged. Possible causes are a defective
alternator or a torn poly-V-belt.
XStop the vehicle as soon as possible, paying attention to road and
traffic conditions.
XCheck the poly-V-belt.
XIf the poly-V-belt is torn: do not continue driving. Consult a qualified
specialist workshop.
XIf the poly-V-belt is not damaged: have the vehicle checked as soon
as possible by a qualified specialist workshop.
÷
Electrically oper‐ated step
The electrical step has retracted or extended only partially or not at all.
XMake sure there is sufficient free space for the electrical step.
XOpen or close the sliding door again.
XIf the electrical step still does not extend or retract fully, push the
step in manually (Ypage 66). Before stepping out, remind the pas-
sengers that the step is missing.
1
Hood open
You are already driving at walking pace, even though the hood is not
closed.
XClose the hood.
9
Please enter PIN:
You have not yet entered your PIN in the mobile phone.
XEnter the PIN for the SIM card.
1
Doors open
You are already driving at walking pace, even though not all the doors
are closed.
XClose the doors.
¦
Washer fluid Checklevel
The washer fluid level is too low.
XAdd washer fluid (Ypage 220).
Key
Display messagesPossible causes/consequences and MSolutions
+
Replace key Visitworkshop
The key is no longer working.
XVisit a qualified specialist workshop.
Display messages189
On-board computer and displays
Z
ProblemPossible causes/consequences andMSolutions
;
The yellow Check
Engine indicator
lamp is lit while
the engine is run-
ning.The exhaust gas aftertreatment is malfunctioning or an emission rel-
evant malfunction has occurred. This malfunction or defect can dam-
age the exhaust gas aftertreatment.
After the first message and under normal operating conditions, you
can drive on for up to approximately 500 mi (800 km). Then a warning
tone sequence sounds and the engine can only be started another 16
times.
XObserve the messages in the display.
XHave the exhaust gas aftertreatment checked immediately at a
qualified specialist workshop.
In some states it is legally prescribed that after the Check Engine
indicator lamp lights up you must contact a qualified specialist work-
shop immediately. Observe the legal requirements.
% If you turn the
SmartKey to posi-
tion2in the igni-
tion lock, the yel-
low preglow indi-
cator lamp
remains lit for
approximately
1 minute. Or the
yellow preglow
indicator lamp
lights up for
approximately
1 minute while
the engine is run-
ning.At extremely low temperatures, the engine may not start.
There is a malfunction in the preglow system.
XHave any malfunction rectified at a qualified specialist workshop.
È The yellow air fil-
ter indicator lamp
is lit while the
engine is running.The service limit for the air filter has been reached. The air filter is dirty.
XHave the air filter element replaced as soon as possible at a quali-
fied specialist workshop.
hThe yellow tire
pressure monitor
warning lamp
comes on.GWARNING
The tire pressure monitor indicates a rapid or severe loss of pressure
in at least one tire.
XStop the vehicle without making any extreme steering maneuvers or
braking suddenly. Pay attention to the traffic conditions while doing
so.
XCheck the tires and correct the tire pressure. If a tire continues to
lose pressure, it must be replaced. Replace damaged tires imme-
diately.
The warning light will go out after the flat tire has been rectified and
you have been driving for a few minutes.
XVehicles with steering wheel buttons: also observe the messages in the display (Ypage 173).
Indicator and warning lamps in the instrument cluster197
On-board computer and displays
Z
ProblemPossible causes/consequences andMSolutions
h
US vehicles only:
The yellow tire
pressure monitor
warning lamp
flashes for
60 seconds and
then remains lit.The tire pressure monitor has malfunctioned.
XHave the tire pressure monitor and the wheels checked at a quali-
fied specialist workshop.
:
The yellow water
separator indica-
tor lamp is lit
when the ignition
is switched on.The water that has collected in the water separator of the fuel filter has
reached the maximum level.
XDrain the water separator (Ypage 220).
m
The yellow water
separator indica-
tor lamp is lit
when the ignition
is switched on.The fuel filter is dirty.
XHave the fuel filter element replaced as soon as possible at a quali-
fied specialist workshop.
¦The yellow
washer fluid level
indicator lamp for
the windshield
washer/head-
lamp cleaning
system is lit after
the engine is star-
ted or while the
vehicle is in
motion.The water level is too low.
XAdd washer fluid (Ypage 220).
7The red seat belt
warning lamp
lights up continu-
ously or flashes. A
warning tone may
also sound.The warning lamp is to remind you to fasten your seat belt.
XFasten seat belt (Ypage 43).
bWhen the Smart-
Key is turned to
position 2in the
ignition lock, the
yellow bulb warn-
ing lamp lights up.One of the exterior lighting bulbs is faulty, with the exception of the
perimeter lamps and the trailer lighting.
iDepending on the equipment, the bulb failure indicator can fail for
all lamps with the exception of the turn signal lamps.
XReplace the faulty bulb as soon as possible (Ypage 87).
1 The yellow "door
open" indicator
lamp is lit while
driving.The vehicle is moving without all doors or the hood being closed.
XClose the doors or hood.
198Indicator and warning lamps in the instrument cluster
On-board computer and displays