Problems with PARKTRONIC
Problem
Possible causes/consequences and
0050
0050Solutions Only the red segments
in the PARKTRONIC
warning displays are lit.
A warning tone also
sounds for approx-
imately 2 seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds.
The indicator lamp of
the 0069 button lights
up and the red seg-
ments in the
PARKTRONIC warning
display go out. PARKTRONIC has malfunctioned and has switched itself off.
X If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. The PARKTRONIC
warning displays
implausible distances.
For example, all the
segments may be lit
even though there is no
obstacle present. The PARKTRONIC sensors are dirty or iced up.
X Clean the PARKTRONIC sensors (Y page 268).
X Turn the key to position 2again in the ignition lock. The license plate or other parts attached near the sensors may not
be secured correctly.
X Check the license plate and attachment parts near the sensors
for correct seating. An external radio or ultrasonic source may be causing interfer-
ence.
X Check PARKTRONIC functions in a different location. Rear view camera
Important safety notes !
Objects that are not at ground level
appear further away than they actually are, for example:
R the bumper of the vehicle parked behind
R the drawbar of a trailer
R the ball coupling of a trailer tow hitch
R the tail-end of a truck
R slanted posts Only use the image from the rear view cam-
era as a guide. You may otherwise damageyour vehicle and/or the object.
The rear view camera is only an aid. It cannot
replace your own awareness of the immedi-
ate surroundings. You are responsible for
safe maneuvering, parking and pulling away.
When maneuvering, parking and pulling away, make sure that there are no persons, animals
or objects in the maneuvering area.
The rear view camera is a visual parking aid.
Information on operation can be found in the
separate Audio 15 supplement. Driving systems
171Driving and parking Z
The camera is in the middle of the roof above
the high-mounted brake lamp (Y page 269).
The rear view camera may show obstacles in perspectival distortion, incorrectly or not at
all. The rear view camera cannot display all
objects located very near and/or under the
rear bumper. It does not warn you of a colli-
sion, persons or objects.
The area behind the vehicle is displayed in a
mirrored fashion, as in the rear-view mirror or
the exterior mirrors.
The function of the rear view camera may be
partially or completely impaired in the follow-
ing circumstances:
R it is raining very heavily or snowing, or it is
foggy.
R the parking space is located in a very dark
place.
R the camera is exposed to very strong white
light. White stripes may appear on the dis-
play.
R the surrounding area is illuminated with flu-
orescent light. The display may flicker.
R if the temperature changes very quickly, for
example if you drive into a heated garage in the winter.
R ambient temperatures are very high.
R the camera lens is dirty or obstructed.
R the rear of the vehicle is damaged. In this
case, have the position and setting
checked at a specialist workshop.
The rear view camera is activated when you
engage reverse gear R.
You can find information on cleaning the cam-
era in the "Maintenance and care" section
(Y page 269). Working mode
ADR (working speed governor)
General notes When activated, ADR automatically increases
the engine speed to a preset speed or a speed
you have set.
i After a cold start, the idling speed of the
engine is increased automatically. If the
preset working speed is lower than the
increased idling speed, the working speed
is only reached once the engine has com-
pleted the warm-up phase.
It is only possible to activate ADR with the
vehicle stationary and the parking brake
applied.
The selector lever of the automatic trans-
mission must be in position P.
Activating/deactivating ADR X
To activate: press upper section 0043of the
0091 switch while the engine is running.
The indicator lamp in the switch comes on.
The 004E indicator lamp in the instrument
cluster lights up or the display shows the
following message: Operating speed Operating speed
governor active
governor active.
X To deactivate: press lower section 0044of
the 0091 switch while the engine is run-
ning.
The indicator lamp in the switch goes out. 172
Working modeDriving and parking
Useful information
............................180
Important safety notes .....................180
Instrument cluster ............................180
On-board computer (vehicles with-
out steering wheel buttons) ............182
On-board computer (vehicles with
steering wheel buttons) ...................184
Display messages ............................. 197
Indicator and warning lamps in the instrument cluster ............................217 179On-board computer and displays
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
On-board computer (vehicles with
steering wheel buttons) Operating the on-board computer
Overview X
To activate the on-board computer: 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 with the buttons on
the steering wheel. 0043
Display
On-board computer operation 0044
0081
and0082
R Selects submenus
R Changes values
R Adjusts the volume
Using the telephone
0061 Accepts a call
0076 Ends a call 0087
Scrolls from one menu to another
0080
Forwards
007F Back
Scrolls within a menu
0063 Forwards
0064 Back Controls
You can think of the order of the menus and of
the functions within a menu as a circle:
X Press the 0080or007F button repeatedly.
The menus are displayed one after the
other.
X Press the 0064or0063 button repeatedly.
The functions in the menu/submenu are
displayed one after the other.
Several functions are combined thematically
in the menus.
The display changes when you press one of
the buttons on the steering wheel. You can
use a function to call up information or to
change the settings for the vehicle.
For example, the AUDIOmenu has functions
for controlling the radio or CD player.
Unlike in other menus, you will find submenus
in the Settings
Settings menu. For information on
how to use these submenus, see the "Set-
tings menu" section (Y page 188) .
The number of menus depends on your vehi-
cle's equipment.
i Operation of the audio equipment using
the steering wheel buttons and making set-
tings using the AUDIOmenu only function 184
On-board computer (vehicles with steering wheel buttons)On-board computer and displays