Useful information
This Operator's Manual describes all models
as well as standard and optional equipment of your vehicle that were available at the time of going to print. Country-specific variations are
possible. Note that your vehicle may not be
equipped with all of the described functions.
This also applies to systems and functions
relevant to safety.
Read the information on qualified specialist
workshops (Y page 25). Important safety notes
G
WARNING
If you are driving and reach through the steer- ing wheel to operate the adjustment knob,
you could lose control of the vehicle. There is
a risk of an accident and injury.
Only operate the adjustment knobs when the vehicle is stationary. Do not reach through the
steering wheel when driving. G
WARNING
If you operate information systems and com-
munication equipment integrated in the vehi- cle while driving, you will be distracted from
traffic conditions. You could also lose control of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary. G
WARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems relevant to safety. The operating safety of your vehicle may be
impaired. There is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately. You must observe the legal requirements for
the country in which you are currently driving
when operating the on-board computer.
The on-board computer display only shows
messages and warnings from certain sys-
tems. You should therefore make sure your
vehicle is operating safely at all times. If the
operating safety of your vehicle is impaired,
stop the vehicle as soon as possible, paying
attention to road and traffic conditions. Then consult a qualified specialist workshop. Instrument cluster
Overview
0043
Instrument cluster on vehicles without
steering wheel buttons
0044 Instrument cluster in vehicles with steer-
ing-wheel buttons
0087 Adjustment buttons 0074/0075
0085 Reset button 0045
0083 Service button 0098(engine oil level check)
0084 Menu button 0079
You will find a full overview of the instrument cluster in the "At a glance" section
(Y page 34). 180
Instrument clusterOn-board computer and displays
The display in the instrument cluster is acti-
vated when you:
R open the driver's door
R turn the key to position 2in the ignition lock
R press the 0045reset button
R switch on the lights
The display switches off automatically after
approximately 30 seconds if:
R the key is in position 0in the ignition lock.
R the vehicle lighting is not switched on. Instrument lighting
When the lights are switched on, you can
adjust the brightness of the instrument clus-
ter lighting using the 0074and 0075buttons.
X To brighten: press the0074button.
X To dim: press the 0075button.
i Vehicles with automatic headlamp mode:
the instrument lighting also adapts to auto-
matic headlamp mode. Tachometer
! Do not drive in the overrevving range, as
this could damage the engine. H
Environmental note
Avoid driving at high engine speeds. This
unnecessarily increases the fuel consumption of your vehicle and harms the environment asa result of increased emissions.
The red band in the tachometer indicates the engine's overrevving range.
To protect the engine, the fuel supply is inter-
rupted when the red band is reached. Outside temperature
You should pay special attention to road con-
ditions when temperatures are around the
freezing point. On vehicles without steering wheel buttons
(Y page 182) and on vehicles with steering
wheel buttons (Y page 187), the outside tem-
perature display is in the display.
Changes in the outside temperature are dis-
played after a short delay. Speedometer
The speed can also be shown in the display.
You can find information on the digital speed-
ometer for vehicles without steering wheel
buttons under (Y page 182) and for vehicles
with steering wheel buttons under
(Y page 187).
i In some countries, a warning sounds
when the vehicle reaches the maximum
speed limit, e.g. at 75 mph (120 km/h). Trip odometer
X To reset: make sure that the display is
showing the trip odometer if you have a
vehicle with steering wheel buttons
(Y page 187).
X Press and hold the 0045reset button until the
trip odometer is reset to 0.0 0.0. Fuel gauge
0043
Fuel gage on vehicles without steering
wheel buttons
0044 Fuel gage on vehicles with steering wheel
buttons Instrument cluster
181On-board computer and displays Z
0087
Fuel filler flap location indicator 007F: the
fuel filler flap is on the left-hand side. Fuel filler flap location indicator 0080: the fuel
filler flap is on the right-hand side
0085 Reserve fuel warning lamp (Y page 224)DEF gauge
Vehicles without steering wheel but-
tons If the supply of DEF is less than 1.5 US gal
(5.5 l), the 00E2indicator lamp lights up and
the 0099 dEF Chk
dEF Chk display message appears.
If the supply of DEF falls below the reserve
range of 0.8 US gal (3.0 l), the 00E2indicator
lamp lights up and the 0099StArtS RExx StArtS RExx
display message appears. In the display, xx
xx
corresponds to the number of possible
remaining engine starts (16 16to0
0).
When the number of remaining engine starts
is 0
0 the engine management prevents the
vehicle being driven at a speed exceeding
5 mph (8 km/h). The multifunction display
shows the StArtS IdLE
StArtS IdLE message and you
hear a warning tone sequence.
Further information on DEF consumption can be found in the "Service products and filling
capacity" section (Y page 320).
Vehicles with steering wheel buttons If the supply of DEF is less than 1.5 US gal
(5.5 l), the Check Diesel Exhaust Fluid
Check Diesel Exhaust Fluid
See
See Operator's
Operator's Manual
Manualmessage is shown
in the display.
If the DEF supply falls below the reserve range
of 0.8 US ga l(3.0 l), the 00E2XX starts XX starts
remaining
remaining message is displayed. In the dis-
play, XX
XXcorresponds to the number of possi-
ble remaining engine starts (16 16to0
0).
When the number of remaining engine starts
is 0
0 the engine management prevents the
vehicle from being driven at a speed exceed- ing 5 mph (8 km/h). The multifunction display
shows the Idle Mode
Idle Mode message and you hear
a warning tone sequence. Further information on DEF consumption can
be found in the "Service products and filling
capacity" section (Y page 320). On-board computer (vehicles without
steering wheel buttons)
Operating the on-board computer
General notes The on-board computer is activated as soon
as you turn the key to position 1in the ignition
lock.
The on-board computer shows vehicle infor-
mation and settings in the display.
You can control the display and the settings in the on-board computer using the adjustment
buttons on the instrument cluster.
Standard display 0043
Odometer
0044 Trip odometer
0087 Clock
0085 Outside temperature or digital speedom-
eter
0083 Fuel gage (Y page 181)
0084 Selector lever position or current shift
range with automatic transmission
(Ypage 142)
X To call up the standard display: turn the
key to position 2in the ignition lock.
X Press the 0079menu button for longer than
1 second.
The information shown in the display
changes from the outside temperature to
the digital speedometer. 182
On-board computer (vehicles without steering wheel buttons)On-board computer and displays
Menus in the on-board computer
Overview If you wish to exit a menu and go to the stand-
ard display:
X Press the 0079menu button for longer than
1 second.
or
X Do not press any button for 10 seconds.
The display accepts the changed settings.
Using the 0074,0075,0079or0045 adjustment but-
tons, you can select the following functions:
R Calling up the service due date
(Y page 258)
R Checking the oil level (Y page 250)
R Checking the DEF supply (Y page 182)
R Preselecting/setting the auxiliary heating
switch-on time (Y page 124)
R Tire pressure monitor (Y page 291)
R Setting the time (Y page 183)
R Activating/deactivating Highbeam Assist
(Y page 192)
R Setting the daytime running lamps
(Y page 92)
Setting the time X
Turn the key to position 2in the ignition
lock.
X Press the 0079menu button repeatedly until
the hours figure flashes.
X Press the 0074or0075 button to set the hour.
X Press the 0045reset button.
The minute display flashes.
X Press the 0074or0075 button to set the minute.
i If you keep the
0074or0075 button pressed,
the value will change continuously. Activating/deactivating Highbeam
Assist X
Turn the key to position 2in the ignition
lock.
X Press the 0079menu button repeatedly until
the 00CE indicator lamp flashes and the on on
or OFF
OFF message appears in the display.
X Use the 0074or0075 button to switch High-
beam Assist on/off.
Switching the daytime running lamps
on/off If you switch the daytime running lamps
on on,
the daytime running lamps will automatically
light up when the engine is running.
For safety reasons, it is only possible to
change this setting when the vehicle is sta-
tionary. The factory setting is on onin countries
in which daytime running lamp mode or day-
time running lamps are mandatory.
X Turn the key to position 2in the ignition
lock.
X Press the 0079menu button repeatedly until
the 0058 indicator lamp flashes and the on on
or OFF
OFF message appears in the display.
X Press the 0074or0075 button to activate or
deactivate the daytime running lamps.
i USA only:
If you turn the light switch to 0060or0058,
the corresponding light switches on. If you
turn the light switch to 0058, the daytime
running lamps remain switched on.
Canada only:
If you turn the light switch to 0058, the low-
beam headlamps switch on. If you turn the light switch to 0060or0058, the daytime
running lamps remain switched on. On-board computer (vehicles without steering wheel buttons)
183On-board computer and displays Z
Menu overview
Diagrams This is what the displays look like when you scroll through the menus.
Generic terms The illustration shows the menus on a vehicle
with Audio 15.
On Sound 5/Audio 20, the on-board com-
puter always shows the AUDIOandTEL (tele-
phone) menus in English. This is the case even
if a different language is selected for the dis- play. Operation
0043
Operation menu (Y
page 186)
R Standard display
R Calling up the service due date
(Y page 258)
R Tire pressure monitor
(Y page 291)
R Checking the engine oil level
(Y page 250) 0044
Audio menu (Y
page 187) 0087
Message memory menu
(Y
page 198) Operation
0085
Settings menu (Y
page 188) 0083
Trip computer menu (Y
page 195) 0084
Telephone menu (Y
page 196) i
The generic terms in the tabular overview
should make orientation easier for you.
However, they are not always shown on the display. Operation menu
Overview You can select the following functions in the
Operation
menu by pressing the 0063
or 0064 button on the steering wheel: 186
On-board computer (vehicles with steering wheel buttons)On-board computer and displays
X
Press the 0081or0082 button to select the
Clock/Date
Clock/Date submenu.
X Press the 0063button to select the
12/24 h
12/24 h function.
The selection marker is on the current set-
ting.
X Press the 0081or0082 button to select the
12 h
12 h or24 h
24 h clock format.
Lighting submenu Activating/deactivating Highbeam Assist
Using the steering wheel buttons
X Press the 0080or007F button repeatedly
until the Settings
Settings menu appears in the
display.
X Press the 0063button to switch to the sub-
menu selection.
X Press the 0081or0082 button to select the
Lighting
Lighting submenu.
X Press the 0063button to select the High‐
High‐
beam Assist
beam Assist function.
The selection marker is on the current set-
ting.
X Press the 0081or0082 button to switch
Highbeam Assist On
OnorOff
Off .
i For safety reasons, it is not possible to
reset the Highbeam
Highbeam Assist
Assistfunction to the
factory settings during a journey. You will
see the following message in the display:
Setting only possible at stand‐
Setting only possible at stand‐
still still.
For further information about Highbeam
Assist, see (Y page 96). Switching the daytime running lamps on/
off If you switch the daytime running lamps func-
tion to On
On, the daytime running lamps will
automatically light up when the engine is run- ning.
For safety reasons, it is only possible to
change this setting when the vehicle is sta-
tionary. The factory setting is On Onin countries
in which daytime running lamp mode or day-
time running lamps are mandatory .
Using the steering wheel buttons
X Press the 0080or007F button repeatedly
until the Settings Settings menu appears in the
display.
X Press the 0063button to switch to the sub-
menu selection.
X Press the 0081or0082 button to select the
Lighting
Lighting submenu.
X Press the 0063button to select the Day‐
Day‐
time runn. lamps
time runn. lamps function.
The selection marker is on the current set- ting.
X Press the 0081or0082 button to switch
the daytime running lamps On
OnorOff
Off.
i If you turn the light switch to
0060or
0058, the corresponding lamp switches on. If you turn the light switch to 0058, the
daytime running lamps remain switched
on.
i For safety reasons, it is not possible to
reset the Daytime runn. lamps Daytime runn. lamps function
to the factory setting while the vehicle is in
motion. You will see the following message
in the display: Setting only possible
Setting only possible
at standstill
at standstill. 192
On-board computer (vehicles with steering wheel buttons)On-board computer and displays
Switching surround lighting on or off
Using the steering wheel buttons
X Press the 0080or007F button repeatedly
until the Settings
Settings menu appears in the
display.
X Press the 0063button to switch to the sub-
menu selection.
X Press the 0081or0082 button to select the
Lighting
Lighting submenu.
X Press the 0063button to select the Loc.
Loc.
lighting
lighting function.
The selection marker is on the current set-
ting.
X Press the 0081or0082 button to switch
the surround lighting On
OnorOff
Off .
If you switch the surround lighting to On
On, the
following lamps light up in the dark after you
have unlocked the vehicle using the key:
R the parking lamps
R the tail lamps
R the license plate lamps
R the fog lamps
The surround lighting automatically switches
off after 40 seconds or if you:
R open the driver's door
R insert the key into the ignition lock
R lock the vehicle using the key
Setting the exterior lighting delayed
switch-off In the
Headlamps Headlamps submenu, you can set
whether and for how long you wish the exte-
rior lighting to remain on after closing the
doors.
Using the steering wheel buttons
X Press the 0080or007F button repeatedly
until the Settings Settings menu appears in the
display.
X Press the 0063button to switch to the sub-
menu selection.
X Press the 0081or0082 button to select the
Lighting
Lighting submenu.
X Press the 0063button to select the Head‐
Head‐
lamps
lamps function.
The selection marker is on the current set-
ting.
X Press the 0081or0082 button to select
whether and for how long you wish the
exterior lighting to remain on.
If you have set the delayed switch-off and
switch off the engine, the following remain lit:
R the parking lamps
R the tail lamps
R the license plate lamps
R the fog lamps
i You can reactivate this function by open-
ing a door within 10 minutes.
If, after switching off the engine, you do not open a door or you close an open door, the
exterior lighting switches off after
60 seconds.
Vehicle submenu Setting the windshield wiper sensitivity
You can use the
Wipe Wipesensor
sensor function to set
the sensitivity of the rain/ light sensor. On-board computer (vehicles with steering wheel buttons)
193On-board computer and displays Z
Display messages
Possible causes/consequences and
0050
0050Solutions Err
Err flashes for 5 seconds, the
00B0indicator lamp also flashes and
then lights up constantly.
Lane Keeping Assist is deactivated and temporarily inoperative.
Possible causes are:
R There are no lane markings present.
R The camera's functionality is impaired due to heavy rain, snow or
fog.
R The camera cannot recognize the road markings:
- It is too dark.
- The lane markings are worn or are covered, for example, by
dirt or snow.
R The windshield is dirty in the camera's field of vision.
X Stop the vehicle paying attention to road and traffic conditions.
X Secure the vehicle to prevent it from rolling away (Y page 149).
X Clean the windshield (Y page 267), particularly in the camera's
field of vision.
If the 00B0 indicator lamp goes out, Lane Keeping Assist is
operational again.
If the problem persists, visit a qualified specialist workshop. 0099
dEF Chk dEF Chk In addition, the yellow
00B9Check Engine indicator lamp and the
yellow 00E2DEF indicator lamp light up and a warning tone
sounds.
The DEF reducing agent is contaminated, diluted or is not compli-
ant with ISO 2224 1.
After the first message and under normal operating conditions,
you can drive on for up to approximately 50 miles (80 km). Then a warning tone sequence sounds and the engine can only be started
another 10 times.
X Have the DEF tank cleaned and refilled at a qualified specialist
workshop as soon as possible. 200
Display messagesOn-board computer and displays