
High-beam AssistantHigh-beam Assistant is switched on.
High beams are activated and off auto‐
matically as a function of the traffic sit‐
uation.
For additional information, refer to High-beam
Assistant, refer to page 106.
Cruise control The system is switched on. It maintains
the speed that was set using the con‐
trol elements on the steering wheel.
Automatic Hold Function is activated. The vehicle is au‐
tomatically held in place when it is sta‐
tionary.
For more information, see Automatic Hold, re‐
fer to page 74.
Blue lights
High beams High beams are activated.
For additional information, refer to High
beams, refer to page 77.
General lamps
Check Control At least one Check Control message is
displayed or is stored.
Text messages Text messages in combination with a symbol
in the instrument cluster explain a Check Con‐
trol message and the meaning of the indicator
and warning lights.Supplementary text messages
Additional information, such as on the cause of
an error or the required action, can be called up
via Check Control.
With urgent messages the added text will be
automatically displayed on the Control Display.
Symbols
Depending on the Check Control message, the
following functions can be selected.▷ "Owner's Manual"
Display additional information about the
Check Control message in the Integrated
Owner's Manual.▷ "Service request"
Contact a dealer’s service center or an‐
other qualified service center or repair
shop.▷ "Roadside Assistance"
Contact Roadside Assistance.
Hiding Check Control messages
Press and hold PC button on blinker lever.
▷Some Check Control messages are dis‐
played continuously and are not cleared
until the malfunction is eliminated. If sev‐
eral malfunctions occur at once, the mes‐
sages are displayed consecutively.
These messages can be faded for approx.
8 seconds. After this time, they are dis‐
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The conceptThis system projects important information
into the driver's field of vision, e. g., the speed.
The driver can get information without averting
his or her eyes from the road.
Information
Follow the instructions for cleaning the Head-
up Display, refer to page 257.
Display visibility The visibility of the displays in the Head-up
Display is influenced by the following factors:▷Certain sitting positions.▷Objects on the cover of the Head-up Dis‐
play.▷Sunglasses with certain polarization filters.▷Wet roads.▷Unfavorable light conditions.
If the image is distorted, have the basic set‐
tings checked by a dealer’s service center or
another qualified service center or repair shop.
Switching on/off
1."Settings"2."Head-Up Display"3."Head-Up Display"
Display
Overview
The following information is displayed on the
Head-up Display:
▷Speed.▷Navigation system.▷Check Control messages.▷Selection list from the instrument cluster.▷Driver assistance systems.
Some of this information is only displayed
briefly as needed.
Selecting displays in the Head-up Display
On the Control Display:1."Settings"2."Head-Up Display"3."Displayed information"4.Select the desired displays in the Head-up
Display.
Settings are stored for the profile currently
used.
Setting the brightness The brightness is automatically adjusted to the
ambient brightness.
The basic setting can be adjusted manually.
On the Control Display:
1."Settings"2."Head-Up Display"3."Brightness"4.Turn the controller until the desired bright‐
ness is set.5.Press the controller.
When the low beams are activated, the bright‐
ness of the Head-up Display can be addition‐
ally influenced using the instrument lighting.
Settings are stored for the profile currently
used.
Adjusting the height
On the Control Display:
1."Settings"2."Head-Up Display"3."Height"4.Turn the controller until the desired height
is reached.5.Press the controller.
Settings are stored for the profile currently
used.
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Setting the rotation
The screen of the Head-up Display can be ro‐
tated around its own axis.
On the Control Display:1."Settings"2."Head-Up Display"3."Rotation"4.Turn the controller until the desired setting
is selected.5.Press the controller.
Settings are stored for the profile currently
used.
Special windshield
The windshield is part of the system.
The shape of the windshield makes it possible
to display a precise image.
A film in the windshield prevents double im‐
ages from being displayed.
For this reason, it is strongly suggested to
have the special windshield replaced by a
dealer’s service center or another qualified
service center or repair shop.
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SafetyVehicle features and options
This chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due tothe selected options or country versions. This
also applies to safety-related functions and
systems. The respectively applicable country
provisions must be observed when using the
respective features and systems.
Airbags
1Front airbag, driver2Front airbag, front passenger3Head airbag4Side airbag5Knee airbagFront airbags
Front airbags help protect the driver and front
passenger by responding to frontal impacts in
which safety belts alone would not provide ad‐
equate restraint.Side airbag
In a lateral impact, the side airbag supports the
side of the body in the chest and lap area.
Head airbag In a lateral impact, the head airbag supports
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Ejection MitigationThe head airbag system is designed as an
ejection mitigation countermeasure to reduce
the likelihood of ejections of vehicle occupants
through side windows during rollovers or side
impact events.
Knee airbag The knee airbag supports the legs in a frontal
impact.
Protective action
Airbags are not triggered in every impact situa‐
tion, e.g., in less severe accidents or rear-end
collisions.
Information for optimum effect of the
airbags
WARNING
If the seat position is incorrect or the de‐
ployment area of the airbags is impacted, the
airbag system cannot protect as intended or
cause additional injuries due to triggering.
There is risk of injuries or danger to life. Ob‐
serve the Information for optimum protective
effect of the airbag system.◀▷Keep at a distance from the airbags.▷Make sure that occupants keep their heads
away from the side airbag.▷Always grasp the steering wheel on the
steering wheel rim. Hold your hands at the
3 o'clock and 9 o'clock positions, to keep
the risk of injury to your hands or arms as
low as possible when the airbag is trig‐
gered.▷Make sure that the front passenger is sit‐
ting correctly, i.e., keeps his or her feet and
legs in the floor area.▷There should be no persons, animals or
objects between an airbag and a person.▷Do not apply adhesive materials to the air‐
bag cover panels, do not cover them or
modify them in any way.▷Dashboard and windshield on the front
passenger side must stay clear - do not at‐
tach adhesive labels or coverings and do
not attach brackets or cables, e. g., for GPS
devices or' mobile phones.▷Do not use the cover of the front airbag on
the front passenger side as a storage area.▷Do not place slip covers, seat cushions or
other objects on the front passenger seat
that are not specifically suited for seats
with integrated side airbags.▷Do not hang pieces of clothing, such as
jackets, over the backrests.▷Never modify either the individual compo‐
nents or the wiring in the airbag system.
This also applies to steering wheel covers,
the dashboard, and the seats.▷Do not remove the airbag system.
Even when you follow all instructions very
closely, injury from contact with the airbags
cannot be ruled out in certain situations.
The ignition and inflation noise may lead to
short-term and, in most cases, temporary
hearing impairment in sensitive individuals.
Warnings and information on the airbags are
also found on the sun visors.
Functional readiness of the airbag
system
Information WARNING
Individual components can be hot after
triggering of the airbag system. There is risk of
injuries. Do not touch individual components.◀
WARNING
Improperly executed work can lead to
failure, malfunction or unintentional triggering
of the airbag system. In the case of a malfunc‐
tion, the airbag system could not trigger as in‐
tended in the event of an accident despite re‐
spective accident severity. There is risk of
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injuries or danger to life. Have the airbag sys‐
tem checked, repaired, dismantled and scrap‐
ped by a dealer’s service center or another
qualified service center or repair shop.◀
Correct function When the ignition is switched on, the
warning lamp in the instrument cluster
lights up briefly and thereby indicates
the operational readiness of the entire airbag
system and the belt tensioner.
Airbag system malfunctioning▷Warning lamp does not come on when the
ignition is turned on.▷The warning lamp lights up continuously.
Automatic deactivation of the front-
seat passenger airbags
The concept The system reads if the front passenger seat is
occupied by measuring the human body's re‐
sistance.
Front, knee and side airbag on the front pas‐
senger's side are either activated or deacti‐
vated.
Information Before transporting a child on the front pas‐
senger seat, refer to the safety notes and in‐
structions for children on the front passenger
seat, see Children.
WARNING
The ensure the front-seat passenger air‐
bag function, it must be detected, whether a
person occupies the front passenger seat. The
entire seat cushion area must be used for this
purpose. There is risk of injuries or danger to
life. Make sure that the front passenger keeps
his or her feet in the floor area.◀
Malfunction of the automatic
deactivation system
When transporting older children and adults,
the front-seat passenger airbags may be deac‐
tivated in certain sitting positions. In this case,
the indicator lamp for the front-seat passenger
airbags lights up.
In this case, change the sitting position so that
the front-seat passenger airbags are activated
and the indicator lamp goes out.
If it is not possible to activate the airbags, have
the person sit in the rear.
To enable correct recognition of the occupied
seat cushion▷Do not attach covers, cushions, ball mats
or other items to the front passenger seat
unless they are specifically determined to
be safe for use on the front passenger
seat.▷Do not place any electronic devices on the
passenger seat if a child restraint system is
to be installed on it.▷Do not place objects under the seat that
could press against the seat from below.▷No moisture in or on the seat.
Indicator lamp for the front-seat
passenger airbags
The indicator lamp for the front-seat passen‐
ger airbags indicates the operating state of the
front-seat passenger airbags.
The lamp indicates whether the airbags are ei‐
ther activated or deactivated.
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▷The indicator lamp lights up
when a child is properly
seated in a child restraint fix‐
ing system or when the seat
is empty. The airbags on the
front passenger side are not
activated.▷The indicator lamp does not light up when,
e.g., a correctly seated person of sufficient
size is detected on the seat. The airbags
on the front passenger side are activated.
Detected child seats
The system generally detects children seated
in a child seat, particularly in child seats re‐
quired by NHTSA when the vehicle was manu‐ factured. After installing a child seat, make
sure that the indicator lamp for the front-seat
passenger airbags lights up. This indicates
that the child seat has been detected and the
front-seat passenger airbags are not activated.
Strength of the driver's and front-seat
passenger airbag
The explosive power that activates driver's/
front passenger's airbags very much depends
on the positions of the driver's/front passeng‐ er's seat.
With a respective message appearing on Con‐
trol Display calibrate the front seats to keep the accuracy of this function over the long-
term.
Calibrating the front seats WARNING
There is risk of jamming when moving
the seats. There is risk of injuries or risk of
property damage. Make sure that the area of
movement of the seat is clear prior to any ad‐
justment.◀
A corresponding message appears on the
Control Display.1.Press the switch and move the respective
seat all the way forward.2.Press the switch forward again. The seat
still moves forward slightly.3.Readjust the seat to the desired position.
The calibration procedure is completed when
the message on the Control Display disap‐
pears.
If the message continues to be displayed, re‐
peat the calibration.
If the message does not disappear after a re‐
peat calibration, have the system checked as
soon as possible.
Tire Pressure Monitor TPM
The concept The system monitors tire inflation pressure in
the four mounted tires. The system warns you
if there is a significant loss of pressure in one
or more tires. For this purpose, sensors in the
tire valves measure the tire inflation pressure
and tire temperature.
Information With use of the system observe further infor‐
mation found under Tire inflation pressure, re‐
fer to page 215.
Functional requirements
The system must have been reset with the
correct tire inflation pressure; otherwise, relia‐
ble signaling of tire inflation pressure loss is
not assured.
Reset the system after each adjustment of the
tire inflation pressure and after every tire or
wheel change.
Always use wheels with TPM electronics to
ensure that the system will operate properly.
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Run-flat tires, refer to page 225, are la‐
beled with a circular symbol containing the
letters RSC marked on the tire's sidewall.
WARNING
A damaged regular tire with low or miss‐
ing tire inflation pressure impacts handling,
such as steering and braking response. Run-
flat tires can maintain limited stability. There is
risk of an accident. Do not continue driving if
the vehicle is not equipped with run-flat tires.
Observe the information on run-flat tires and
continued driving with these tires.◀
A low tire inflation pressure might turn on DSC
Dynamic Stability Control.
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.
The tire pressure gage of the Mobility Sys‐
tem, refer to page 225, can possibly be
used for this purpose.
If the tire inflation pressure in all four tires
is shown to be correct, it is possible that
the Tire Pressure Monitor did not perform
a reset. Then perform the reset.
If identification of flat tire damage is not
possible, please contact a dealer’s service
center or another qualified service center
or repair shop.2.Replace the damaged tire with the emer‐
gency wheel as needed or fix it where ap‐
plicable with the Mobility System.
Use of tire sealant, e.g., the Mobility System,
may damage the TPM wheel electronics. In
this case, have the electronics checked at the
next opportunity and have them replaced if
needed.
Run-flat tires
Maximum speed
You may 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 shown to be correct, it is possible that
the Tire Pressure Monitor did not perform
a reset. 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 cargo load, driv‐
ing style and road conditions.
A vehicle with an average load has a possible
driving range of approx. 50 miles/80 km.
A vehicle with a damaged tire reacts differ‐
ently, e.g., it has reduced lane stability during
braking, a longer braking distance and different
self-steering properties. Adjust your driving
style accordingly. Avoid abrupt steering ma‐
neuvers or driving 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 shorter or lon‐
ger depending on the driving speed, road con‐
ditions, external temperature, cargo load, etc.
WARNING
Your vehicle handles differently when a
run-flat tire is damaged and has low or missing
tire inflation pressure, e.g., your lane stability is
reduced when braking, braking distances are
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