
The tire pressure gauge of the Mobility Sys‐
tem, refer to page 175, can be used for this
purpose.
If the tire inflation pressure in all four tires is
correct, the Tire Pressure Monitor may not
have been initialized. In this case, initialize
the system.
If an identification is not possible, please
contact the service center.2.Fix the flat tire using the Mobility System,
refer to page 175.
Run-flat tires
Maximum speed
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.
If the tire inflation pressure in all four tires is
correct, it is possible that a reset was not
carried out for the Tire Pressure Monitor. In
that case, carry out a reset.
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 depends
on how the vehicle is used during the trip, the
actual distance may be smaller or greater de‐
pending 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 prop‐
erties. ◀
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. ◀
Required inflation pressure check
message
A Check Control message is displayed in the fol‐
lowing situations▷The system has detected a wheel change,
but no reset was carried out.▷Inflation was not carried out according to
specifications.▷The tire pressure has fallen below the level
of the last confirmation.
In this case:
▷Check the tire pressure and correct as
needed.▷Carry out a reset of the system after a tire
change.Seite 96CONTROLSSafety96
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It detects a pressure loss in a tire by comparing
the rotational speeds of the individual wheels
while moving.
In the event of a pressure loss, the diameter
and therefore the rotational speed of the corre‐
sponding wheel change. This is detected and
reported as a flat tire.
Functional requirements The system must have been initialized when
the tire inflation pressure was correct; other‐
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.
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 (FTM)"
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. "Perform reset"4.Start the engine - do not drive away.5.Start the initialization with "Perform 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 yellow warning lamp lights up. A
Check Control message is displayed.
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.
Run-flat tires, refer to page 175, 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.
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. Therefore, check the tire
inflation pressure regularly.
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.Seite 98CONTROLSSafety98
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Actions in the event of a flat tire
Normal tires1.Identify the damaged tire.
Do this by checking the air pressure in all
four tires.
The tire pressure gauge of the Mobility Sys‐
tem, refer to page 175, can be used for this
purpose.
If the tire inflation pressure in all four tires is
correct, the Flat Tire Monitor may not have
been initialized. In this case, initialize the
system.
If an identification is not possible, please
contact the service center.2.Rectify the flat tire using the Mobility Sys‐
tem, refer to page 175.
Run-flat tires
Maximum speed
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.
If the tire inflation pressure in all four tires is
correct, the Flat Tire Monitor may not have
been initialized. In this case, initialize 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 depends
on how the vehicle is used during the trip, the
actual distance may be smaller or greater de‐
pending 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 prop‐
erties. ◀
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. ◀
Intelligent Safety
The concept
The intelligent safety systems can help to pre‐
vent an imminent collision.▷Collision warning with City Braking function,
refer to page 100.▷Pedestrian warning with city braking func‐
tion, refer to page 103Seite 99SafetyCONTROLS99
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Warning with braking function
Note Adapting your speed and driving style
The warning does not relieve the driver of
the responsibility to adapt his or her driving
speed and style to the traffic conditions. ◀
Display
If a collision with a vehicle detected in this way
is imminent, a warning symbol appears on the
instrument cluster and in the Head-up Display.SymbolMeasureThe vehicle lights up red: prewarning.
Increase braking and distance.The vehicle flashes red and an acous‐
tic signal sounds: acute warning.
You are requested to intervene by
braking or making an evasive maneu‐
ver.
Braking intervention
The warning prompts the driver himself to in‐
tervene. During a warning, the maximum brak‐
ing force is used. A prerequisite for the brake
booster is a sufficiently fast and sufficiently
strong actuation of the brake pedal. In addi‐
tion, if there is a risk of collision, the system can
assist with a slight braking intervention. The in‐
tervention can bring a vehicle traveling at slow
speed to a complete stop.
Manual transmission: During a braking inter‐
vention up until reaching a complete stop, the
engine may be shut down.
The braking intervention is executed only if DSC
Dynamic Stability Control is switched on and
Dynamic Traction Control DTC is activated.
The braking intervention can be interrupted by
pressing on the accelerator pedal or by actively
moving the steering wheel.
Tow-starting and towing
When tow-starting and towing the vehi‐
cle, switch off the Intelligent Safety systems;
otherwise, improper behavior of the braking
function of individual systems could result in an
accident. ◀
System limits Be alert
Due to system limitations, warnings may
be not be issued at all, or may be issued late or
improperly. Therefore, always be alert and
ready to intervene; otherwise, there is the dan‐
ger of an accident occurring. ◀
Detection range The system's detection capabilities are limited.
This may result in the warning not being issued
or being issued late.
For example, the following situations may not
be detected:▷Slow moving vehicles when you approach
them at high speed.▷Vehicles that suddenly swerve in front of
you or sharply decelerating vehicles.▷Vehicles with an unusual rear appearance.▷Two-wheeled vehicles ahead of you.▷Pedestrians.
Functional limitations
The system may not be fully functional in the
following situations:
▷In heavy fog, rain, sprayed water or snow‐
fall.▷In tight curves.▷If the driving stability control systems are
limited or deactivated, for example, DSC
OFF.▷If the camera in the mirror is dirty or ob‐
scured.Seite 102CONTROLSSafety102
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Camera
The camera is located near the base of the mir‐
ror.
Keep the windshield in the area behind the in‐
terior rearview mirror clean and clear.
Switching on/off
Switching on automatically
The system is automatically active every time
the engine is started using the Start/Stop but‐
ton.
Switching on/off manually Press the button: the menu for the in‐
telligent safety system is displayed. Ad‐
justments can be made. The individual settings
are stored for the remote control currently in
use.
Press the button briefly:
▷Intelligent Safety systems are individually
switched off according to individual setting.▷The LED lights up orange.
Press the button again:
▷All Intelligent Safety systems are switched
on.▷The LED lights up green.
Hold the button down:
▷All Intelligent Safety systems are switched
off.▷The LED goes out.Warning with braking function
Note Adapting your speed and driving style
The warning does not relieve the driver of
the responsibility to adapt his or her driving
speed and style to the traffic conditions. ◀
Display
If a collision with a person detected in this way
is imminent, a warning symbol appears on the
instrument cluster and in the Head-up Display.
The red symbol is displayed and a signalsounds.
Intervene immediately by braking or
making an evasive maneuver.
Braking intervention
The warning prompts the driver himself to in‐
tervene. During a warning, the maximum brak‐ ing force is used. A prerequisite for the brake
booster is a sufficiently fast and sufficiently
strong actuation of the brake pedal. In addi‐
tion, if there is a risk of collision, the system can
assist with a slight braking intervention. The in‐
tervention can bring a vehicle traveling at slow
speed to a complete stop.
Manual transmission: During a braking inter‐ vention up until reaching a complete stop, the
engine may be shut down.
The braking intervention is executed only if DSC
Dynamic Stability Control is switched on and
Dynamic Traction Control DTC is activated.
The braking intervention can be interrupted by
pressing on the accelerator pedal or by actively
moving the steering wheel.
Tow-starting and towing
When tow-starting and towing the vehi‐
cle, switch off the Intelligent Safety systems;
otherwise, improper behavior of the braking
function of individual systems could result in an
accident. ◀Seite 104CONTROLSSafety104
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Driving comfortVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehi‐
cle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
Camera-based cruise con‐
trol, ACC
The concept
This system can be used to select a desired
speed that the vehicle will maintain automati‐
cally on clear roads.
To the extent possible, the system automati‐
cally adjusts the speed to a slower vehicle
ahead of you.
A camera on the interior rear view mirror is
used to detect vehicles driving ahead.
The distance that the vehicle maintains to the
vehicle ahead of you can be varied.
For safety reasons, it depends on the speed.
To maintain a certain distance, the system au‐
tomatically decelerates, applies the brakes
lightly, or accelerates again if the vehicle ahead
begins moving faster.
As soon as the road is clear, it accelerates to the
desired speed.
The speed is also maintained on downhill gradi‐
ents, but may not be maintained on uphill
slopes if engine power is insufficient.
General information
Depending on the set drive mode, refer to
page 108, the characteristics of the cruise con‐
trol can change in certain areas.Hints
Personal responsibility
Even an active system does not release
the driver from personal responsibility for the
driving process, especially for lane tracking, adaptation of speed, distance and driving style
to the traffic conditions.
Because of technical system limits, the system
cannot independently react appropriately in all
traffic situations.
Monitor the driving process, the surrounding
area and what is occurring in traffic continu‐
ously and attentively and actively intervene as
required, e.g., by braking, steering or making
an evasive maneuver. ◀
Unfavorable weather conditions
In the event of unfavorable weather and
light conditions, for instance if there is rain,
snowfall, slush, fog or glare, this may result in
poorer recognition of traffic situations as well
as short-term interruptions for vehicles that are
already detected. Drive attentively, and react to
the current traffic events. Intervene actively
when necessary, e.g., by braking, steering or
making an evasive maneuver, otherwise, there
is danger of an accident. ◀
At a glance
Buttons on the steering wheelPress the but‐
tonFunctionCruise control on/off, interrupt‐
ing, refer to page 111Store/maintain speed, refer to
page 112Resume speed, refer to
page 112Seite 110CONTROLSDriving comfort110
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Press the but‐
tonFunctionReduce distance, refer to
page 112Increase distance, refer to
page 112Maintain or save speed, refer to
page 112
Increase maintain or save speed,
refer to page 112Maintain or save speed, refer to
page 112
Reduce, maintain or store speed,
refer to page 112
The arrangement of the buttons varies accord‐
ing to the how the vehicle is equipped or coun‐
try-specific variants.
Camera
The camera is located near the base of the mir‐
ror.
Keep the windshield in the area behind the in‐
terior rearview mirror clean and clear.
Switching on/off and interrupting cruise
control
Switching on Press the button on the steering
wheel.
Display in the instrument cluster lights
up.
Display in the instrument cluster lights up. The current speed is adopted as the
desired speed and displayed on the
symbol.
Cruise control can be used.
Switching off Deactivated or interrupted system
If the system is deactivated or inter‐
rupted, actively intervene by braking, steering
and, if necessary, with evasive maneuvers; oth‐
erwise, there is the danger of an accident oc‐
curring. ◀
Press the button on the steering
wheel.▷If active: press twice.▷If interrupted: press once.
The displays go out. The stored desired speed
and distance are deleted.
Interrupting Press the button on the steering
wheel.
The system is automatically interrupted if:
▷The brakes are applied.▷The clutch pedal is depressed for a few sec‐
onds or released while a gear is not en‐
gaged.▷Selector lever position N is engaged.▷DTC Dynamic Traction Control is activated
or DSC is deactivated.▷DSC is actively controlling stability.▷The detection range of the camera is dis‐
torted, for example, by soiling, heavy pre‐
cipitation or glare from the sun.▷The vehicle in front decelerates below a
speed of approx. 20 mph/30 km/h.Seite 111Driving comfortCONTROLS111
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Cruise controlThe concept
The system is functional at speeds beginning at
approx. 20 mph/30 km/h.
It maintains the speed that was set using the
control elements on the steering wheel.
The system brakes on downhill gradients if en‐
gine braking action is insufficient.
Unfavorable conditions
Do not use the system if unfavorable con‐
ditions make it impossible to drive at a constant
speed, for instance:▷On curvy roads.▷In heavy traffic.▷On slippery roads, in fog, snow or rain, or
on a loose road surface.
Otherwise, you could lose control of the vehicle
and cause an accident. ◀
General information
Depending on the set drive mode, refer to
page 108, the characteristics of the cruise con‐
trol can change in certain areas.
Controls
At a glance
Press the buttonFunctionSystem on/off, interruptStore speedResume speedIncreasing, maintaining or
storing the speedReducing, maintaining or stor‐
ing the speedSwitching on
Press the button on the steering
wheel.
The indicator lamp in the instrument
cluster lights up.
The current speed is adopted as the de‐
sired speed and is displayed with the
symbol in the instrument cluster.
Cruise control can be used.
Switching off Deactivated or interrupted system
If the system is deactivated or inter‐
rupted, actively intervene by braking and, if
necessary, with evasive maneuvers; otherwise,
there is the danger of an accident occurring. ◀
Press the button.▷If active: press twice.▷If interrupted: press once.
The displays go out. The stored desired speed is
deleted.
Interrupting When active, press the button.
The system is automatically interrupted if:
▷The brakes are applied.▷The clutch pedal is depressed for a few sec‐
onds or released while a gear is not en‐
gaged.▷The gear engaged is too high for the cur‐
rent speed.▷Selector lever position N is engaged.▷DTC Dynamic Traction Control is activated
or DSC is deactivated.▷DSC is actively controlling stability.Seite 116CONTROLSDriving comfort116
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