Hiding Check Control messages
Press the button in the turn indicator lever.
Some Check Control messages are displayed
until the malfunctions have been rectified.
They cannot be hidden. If several malfunctions
occur at the same time, they are displayed in
succession.
They are marked with the symbol
shown here.
Other messages are automatically hidden after
approx. 20 seconds, but are kept in memory.
They are marked with the symbol
shown here.
Viewing stored Check Control
messages
1.Press button 1 in the turn indicator lever up
or down repeatedly until the appropriate
symbol appears in the display, accompa‐
nied by the words "CHECK CONTROL".2.Press button 2. If there is no Check Control
message, this is indicated by "CHECK
OK“.If a Check Control message has been
stored, the corresponding lamp comes on.
It is accompanied by a text message on the
Control Display.3.Press button 1 to check for other mes‐
sages.4.Press button 2.
The display again shows the external tem‐
perature and the time.
Displaying stored Check Control
messages
1. Press the button.2."Vehicle Info"3."Vehicle status"4."Check Control"5.Select the text message.
Messages after trip completion
Special messages that were displayed during a
trip are displayed again after the ignition is
switched off.
Speed limit
You can enter a speed, and a Check Control
message will indicate when you reach this
speed. This enables you to receive warnings if
you exceed a speed limit in an urban area, for
example. You are only warned of reaching this
Seite 83DisplaysControls83
Online Edition for Part no. 01 40 2 957 403 - X/14
speed a second time if your vehicle speed falls
below it again by at least 3 mph/5 km/h.1."Settings"2."Speed"3."Warning at:"4.Turn the controller until the desired limit is
displayed.5.Press the controller.
The speed limit is stored.
Activating/deactivating the limit
1."Settings"2."Speed"3."Warning"4.Press the controller.
Applying your current speed as the
limit
1."Settings"2."Speed"3."Select current speed"4.Press the controller.
The system adopts your current speed as the
limit.
Seite 84ControlsDisplays84
Online Edition for Part no. 01 40 2 957 403 - X/14
To avoid blinding oncoming traffic, the Adap‐
tive Light Control does not swivel to the driv‐
er's side when the vehicle is at a standstill.
Malfunction The warning lamp lights up. A mes‐
sage appears on the Control Display.
Adaptive Light Control is malfunc‐
tioning or has failed. Have the system checked
as soon as possible.
High beams/roadside
parking lamps1High beams2Headlamp flasher3Roadside parking lamps
Left and right roadside parking lamps
There is an additional option of switching on
the lamps on the side of the car facing the road
when parked.
Switching on After parking the vehicle, press the lever up or
down beyond the pressure point for a longer
period, arrow 3.
The roadside parking lamps drain the battery.
Therefore, do not leave them on for unduly
long periods of time; otherwise, the battery
might not have enough power to start the en‐
gine.
Switching off
Press the lever in the opposite direction to the
pressure point, arrow 3.
High-beam Assistant The concept
When the lights are switched on, this system
automatically switches the high beams on and
off. The procedure is controlled by a sensor on
the front of the interior rearview mirror. The as‐
sistant ensures that the high beams are
switched on whenever the traffic situation al‐
lows. The driver can intervene at any time and
switch the high beams on and off as usual.
Activating the High-beam Assistant1.Turn the light switch to .2.With the low beams switched on, briefly
push the turn indicator lever in the direc‐
tion of the high beam.
The indicator lamp in the instrument
cluster lights up.
When the lights are switched on, the
high beams are switched on and off automati‐
cally.
The system responds to light from oncoming
traffic and traffic driving ahead of you, and to
adequate illumination, e.g., in towns and cities.
Switching the high beams on and off
manually
▷High beams on, arrow 1.Seite 87LampsControls87
Online Edition for Part no. 01 40 2 957 403 - X/14
3.Push button 1 up or down to select the de‐
sired brightness level.4.Press button 2.
The display again shows the outside tem‐
perature and the time.
Interior lamps
The interior lamps, footwell lamps, entry
lamps, trunk lamp, and courtesy lamps are
controlled automatically.
The LEDs for the courtesy lamps are set in the
door handles and illuminate the ground in front
of the doors.
To avoid draining the battery, all lamps inside
the car are switched off about 8 minutes after
the ignition is switched off, Start/Stop button,
refer to page 55.
Switching interior lamps on/off manually
Interior lamps:
To switch on and off, press the button.
To switch off the interior lamps, footwell
lamps, entry lamps, and courtesy lamps per‐
manently, press the button for the front interior
lamps for about 3 seconds.
Reading lamps
The reading lamps are located next to the inte‐
rior lamp. To switch on and off, press the but‐
ton.
Seite 89LampsControls89
Online Edition for Part no. 01 40 2 957 403 - X/14
wise, reliable signaling of a flat tire is not en‐
sured. Initialize the system after each correc‐
tion of the tire inflation pressure and after
every tire or wheel change.
System limits Sudden tire damage
Sudden serious tire damage caused by
external influences cannot be indicated in ad‐
vance.◀
A natural, even pressure loss in all four tires
cannot be detected.
The system could be delayed or malfunction in
the following situations:▷When the system has not been initialized.▷When driving on a snowy or slippery road
surface.▷Sporty driving style: slip in the drive
wheels, high lateral acceleration.▷When driving with snow chains.
Status display
The current status of the Flat Tire Monitor can
be displayed on the Control Display, e.g.,
whether or not the FTM is active.
1."Vehicle Info"2."Vehicle status"3."Flat Tire Monitor"
The status is displayed.
Initialization
The initialization process adopts the set infla‐
tion tire pressures as reference values for the
detection of a flat tire. Initialization is started by
confirming the inflation pressures.
Do not initialize the system when driving with
snow chains.1."Vehicle Info"2."Vehicle status"3."Reset"4.Start the engine - do not drive away.5.Start the initialization with "Reset".6.Drive away.
The initialization is completed while driving,
which can be interrupted at any time.
The initialization automatically continues when
driving resumes.
Indication of a flat tire The warning lamps come on in yellow
and red. A message appears on the
Control Display. In addition, a signal
sounds.
There is a flat tire or a major loss in tire inflation
pressure.
1.Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.2.Check whether the vehicle is fitted with
regular tires or run-flat tires.Seite 93SafetyControls93
Online Edition for Part no. 01 40 2 957 403 - X/14
one or more tires. Sensors in the tire valves
measure the tire pressure.
Notes Tire damage caused by external influen‐
ces
Sudden tire damage caused by external influ‐
ences cannot be indicated in advance.◀
To operate the system, also note the additional
information and instructions contained under
Tire inflation pressure, refer to page 226.
Functional requirement The system must have been reset while the in‐
flation pressure was correct; otherwise, reliable
signaling of pressure loss is not ensured.
Reset the system after adjusting the tire infla‐
tion pressure and after changing a tire or
wheel.
Always use wheels with TPM electronics to
ensure that the system will operate properly.
Status display1. Press the button. The start menu
opens.2."Vehicle Info"3."Vehicle status"4."TPM"5.The status is displayed.
Status indicator on the Control
Display
The tire and system status is indicated by the
color of the tires.
TPM takes into account that tire pressures
change while the vehicle is being driven.
All wheels are green
The system is active and issues warnings in
case of deviations from the tire inflation pres‐
sures stored last.
"TPM active" appears on the Control Display.
One wheel is yellow
Flat tire or major drop in inflation pressure in
the indicated tire. A message appears on the
Control Display.
All wheels are yellow▷Flat tire or major drop in inflation pressure
in several tires.▷The system was not reset after a wheel
change and issues warnings in case of de‐
viations from the tire inflation pressures
stored last.▷A flat tire in one or more tires while the sys‐
tem is being reset.
A message appears on the Control Display.
The wheels are gray The system cannot detect a flat tire.
Possible reasons for this:
▷TPM is being reset.▷Disturbance by systems or devices with
the same radio frequency.▷Malfunction.
Resetting the system
Reset the system after adjusting the tire infla‐
tion pressure and every time a tire or wheel is
changed.
1. Press the button. The start menu
opens.2."Vehicle Info"3."Vehicle status"Seite 95SafetyControls95
Online Edition for Part no. 01 40 2 957 403 - X/14
4."Reset"5.Start the engine, but do not start driving.6.Start the system reset with "Reset".7.Drive away. The tires are shown in gray and
"Resetting TPM..." is displayed.
After a short trip at over 30 km/h, the set tire
inflation pressures are adopted as target val‐
ues. The system reset is completed as you
drive, and can be interrupted at any time.
When driving resumes, the reset is continued
automatically. On the Control Display, the tires
are shown in green and "TPM active" is dis‐
played again.
If a flat tire is detected while the system is re‐
setting and determining the inflation pres‐
sures, all tires on the Control Display are dis‐
played in yellow. The message "Low tire!" is
shown.
Low tire pressure message The warning lights come on in yellow
and red. A message appears on the
Control Display. In addition, a signal
sounds.
▷There is a flat tire or a major loss in tire in‐
flation pressure.▷The system was not reset. The system
therefore issues warnings in case of devia‐
tions from the tire inflation pressures
stored last.1.Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.2.Check whether the vehicle is fitted with
regular tires or run-flat tires.
Run-flat tires, refer to page 96, are la‐
beled with a circular symbol containing the
letters RSC marked on the tire sidewall.
Do not continue driving without run-flat
tires
Do not continue driving if the vehicle is not
equipped with run-flat tires; continued driving
may result in serious accidents.◀
When a flat tire is indicated, DSC Dynamic Sta‐
bility Control is switched on if necessary.
Actions in the event of a flat tire Normal tires
1.Identify the damaged tire.
Do this by checking the air pressure in all
four tires.
If the tire inflation pressure in all four tires
is correct, the Tire Pressure Monitor may
not have been reset. Reset the system.
If an identification is not possible, please
contact the service center.2.Rectify the flat tire.
The use of tire sealant can damage the
TPM electronics. In this case, have the
electronics checked at the next opportu‐
nity and have them replaced if necessary.
Run-flat tires
You can continue driving with a damaged tire
at speeds up to 50 mph/80 km/h.
Continued driving with a flat tire If continuing to drive with a damaged tire:
1.Avoid sudden braking and steering maneu‐
vers.2.Do not exceed a speed of 50 mph/80 km/h.3.Check the air pressure in all four tires at
the next opportunity.Seite 96ControlsSafety96
Online Edition for Part no. 01 40 2 957 403 - X/14
If the tire inflation pressure in all four tires
is correct, the Tire Pressure Monitor may
not have been reset. Reset the system.
Possible driving distance with complete loss of
tire inflation pressure:
The possible driving distance after a loss of tire
inflation pressure depends on the cargo load
and the driving style and conditions.
For a vehicle containing an average load, the
possible driving distance is approx.
50 miles/80 km.
When the vehicle is driven with a damaged tire,
its handling characteristics change, e.g., re‐
duced lane stability during braking, a longer
braking distance, and altered self-steering
properties. Adjust your driving style accord‐
ingly. Avoid abrupt steering maneuvers or driv‐
ing over obstacles, e. g., curbs, potholes, etc.
Because the possible driving distance de‐
pends on how the vehicle is used during the
trip, the actual distance may be smaller or
greater depending on the driving speed, road
conditions, external temperature, cargo load,
etc.
Continued driving with a flat tire
Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
A loss of tire inflation pressure results in a
change in the handling characteristics, e.g., re‐
duced lane stability during braking, a longer
braking distance and altered self-steering
properties.◀
Final tire failure
Vibrations or loud noises while driving
can indicate the final failure of the tire. Reduce
speed and stop; otherwise, pieces of the tire
could come loose and cause an accident. Do
not continue driving, and contact your service
center.◀
Message when not reset
The warning light lights up yellow. A
Check Control message is displayed.
The system may not have been reset
although a wheel was changed.
Check the tire inflation pressure and reset the
system, refer to page 95.
System limits
The system does not function properly if it has
not been reset, e.g., it may identify a tire as flat
in spite of the fact that the tire is filled to the
correct inflation pressure.
The tire pressure depends on the temperature
of the tire. An increase in the tire temperature,
e.g., while driving or due to sunlight, increases
the tire inflation pressure. The tire pressure
decreases when the tire temperature drops. In
case of severe temperature drops, this behav‐ ior may lead to a warning on account of the de‐
fined warning limits.
Malfunction The small warning light flashes in yel‐
low and then lights up continuously;
the larger warning light comes on in
yellow. On the Control Display, the
tires are shown in gray and a message ap‐
pears. No flat tire can be detected.
Display in the following situations:▷A wheel without TPM electronics is fitted:
have the service center check it if neces‐
sary.▷Malfunction: have the system checked by
your service center.▷TPM could not be fully reset. Reset the
system again.
The small warning light flashes in yel‐
low and then lights up continuously;
the larger warning light comes on in
yellow. The tires are displayed in gray
Seite 97SafetyControls97
Online Edition for Part no. 01 40 2 957 403 - X/14