Parking lamps 81Low beams 81Automatic headlamp con‐
trol 82
Adaptive Light Control 82
High-beam Assistant 835Head-up Display 1186Steering column stalk, leftTurn signal 64High beams, head‐
lamp flasher 83High-beam Assistant 83Roadside parking lamps 83Computer 72Settings and information about
the vehicle 707Upshifting or downshifting with an auto‐
matic transmission 678Instrument cluster 149Steering column stalk, rightWindshield wipers 65Rain sensor 6610Start/stop the engine and switch
the ignition on/off 5911Ignition lock 5912Steering wheel buttons, rightChange the radio station
Stopping a traffic announcement
Select a music track
Scroll through the redial listNext entertainment sourceRecirculated-air mode 124Steering wheel heating 53Lane departure warning 9313Horn, the entire surface1415Cruise control leverCruise control 109Active cruise control 10216Steering wheel buttons, leftTelephone 226VolumeActivate/deactivate the voice acti‐
vation system 2517Releasing the hood 270Seite 13CockpitAt a glance13
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Instrument cluster1Turn signal indicator lamp2Speedometer3Indicator/warning lamps 154Active Cruise Control 1025Tachometer 716Engine oil temperature 71 or current
consumption 717Display for▷Clock 70▷External temperature 70▷Indicator/warning lamps 15▷Cruise control 109▷Active Cruise Control 1028Display for▷Automatic transmission position 67▷HDC Hill Descent Control 99▷Computer 72▷Date of next scheduled service, and re‐
maining distance to be driven 74▷Odometer and trip odometer 70▷High-beam Assistant 83▷ Check Control message
present 76▷Adaptive Drive: sport chassis and sus‐
pension tuning 1009Fuel gauge 7210Resetting the trip odometer 70
Viewing service requirement display 71Seite 14At a glanceCockpit14
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greater the drive forces in the associated
wheel.
The transparent arrows indicate the maximum
value the drive forces over the last 10 seconds.
Malfunction
Malfunctions are displayed via Check Control,
refer to page 76.
Hill Descent Control HDC The conceptHDC is a downhill driving assistant that auto‐
matically controls vehicle speed on steep
downhill gradients. The vehicle moves at ap‐
proximately walking speed without braking in‐
tervention by the driver.
You can activate the Hill Descent Control at
speeds below approx. 22 mph/35 km/h. When
moving downhill at speeds below approx.
22 mph/35 km/h, the vehicle reduces its speed
to approximately walking speed, approx.
5 mph/8 km/h and keeps it constant.
Only use HDC in transmission positions D or R.
Increasing or reducing speed
The speed can be changed in the range from
approx. 4 mph/6 km/h to ap‐
prox. 15 mph/25 km/h by pressing the acceler‐
ator or brake pedal lightly.
A target speed within the same range can be
specified using the lever of the cruise control.
On inclines over 10 %, you can reduce the
speed to approx. 3 mph/4 km/h. Pull the lever
of the cruise control beyond the resistance point, arrow 3.1Increasing speed2Pull to the resistance point: reduce the
speed to approx. 4 mph/6 km/h3Pull beyond the resistance point: on in‐
clines over 10 %, reduce the speed to ap‐
prox. 3 mph/4 km/h
Activating HDC
Press the button; the LED above the button
lights up.
The LED flashes when the brakes are applied
automatically.
Deactivating HDC
Press the button again; the LED goes out.
HDC is automatically deactivated above ap‐
prox. 37 mph/60 km/h.
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Driving comfortVehicle equipment
This chapter describes all series equipment as
well as country-specific and special equipment
offered for this model series.Therefore, it also
describes equipment that may not be found in
your vehicle, for instance due to the selected
special equipment or the country version. This
also applies to safety-related functions and
systems.
Active cruise control
With active cruise control you can select a de‐ sired speed which is then automatically main‐
tained when driving on open roadways and is
varied to maintain a selected distance setting
to slower moving vehicles ahead.
Active cruise control represents a technologi‐
cal advance over the familiar cruise control and
is a welcome relief from the constant adjust‐
ment of speed that can accompany driving in
traffic on highways or other high-speed thor‐
oughfares. Especially on longer trips and in
traffic congestion, the system can reduce fati‐
gue and tension, while increasing your enjoy‐
ment of driving. Please use it safely and re‐
sponsibly.
In addition to holding a steady cruising speed,
if you encounter slower vehicles ahead, active
cruise control will, within limits, adjust your ve‐
hicle's speed automatically so that you can
flow with the traffic without having to make
constant adjustments. If, for example, while
cruising at the selected speed, you begin to
approach a slower vehicle ahead of you in the
same lane, the system will reduce your vehi‐
cle's speed to the same as that of the vehicle
ahead to maintain your selected distance set‐
ting. You can vary the following distance,
which will vary with speed. Based on your se‐
lected distance setting, the system automati‐cally decreases the throttle setting and lightly
applies the brakes if necessary. In addition, if
the vehicle ahead of you slows to a complete
stop, the system can follow this action within
the given scope and can also accelerate from a
complete stop if the vehicle ahead of you
drives off again shortly thereafter. During brak‐
ing, your vehicle brake lamps will automatically
illuminate to alert a following driver to take ac‐
tion. In addition, it may be necessary for your
vehicle to downshift the automatic transmis‐
sion to maintain the distance setting selected.
As soon as the road in front of you has no mov‐
ing vehicles, the system will accelerate to your
desired speed. This set speed is also main‐
tained on downhill grades, however the vehicle
speed can drop below the set speed when
driving uphill if the engine output is not suffi‐
cient.
Personal responsibility
Active cruise control cannot detect stop
signs, red lights, or any object that is stopped
or is blocking the road. Active cruise control is
not and must not be used as a collision avoid‐
ance/warning system. Since this active cruise
control system is a new technology and oper‐
ates differently from conventional cruise con‐
trol systems to which you may be accustomed,
it is necessary that you read all of the pages re‐
lating to this system before use. Carefully read
and observe the information on the system
limitations, refer to page 107, to obtain a good
command of the system and its range of appli‐
cations.◀
Brake pedal feel
When the system brakes and you also depress
the brake pedal, a somewhat different braking
feel results.Seite 102ControlsDriving comfort102
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Professional navigation system
If the vehicle is equipped with a Professional
navigation system, the system adapts the ac‐
celeration and deceleration behavior of the ve‐
hicle to the road on which you are currently
driving.
To ensure that the system has the latest infor‐
mation on the course of the road, use the most
recent version of the navigation data.
If the vehicle position is unknown, e.g., if you
have left the region covered by the map, the
navigation system ceases to influence vehicle
behavior.
Applications Please try the system first during sparse traffic
and clear road conditions so that you can get
used to the system. After you have experience
and understand the system, only then use it
during normal traffic.
As with conventional cruise control systems,
active cruise control in no way reduces or sub‐
stitutes for the driver's own personal experi‐
ence, responsibility, alertness and awareness
in adjusting speed, braking or otherwise con‐
trolling the vehicle. The driver should decide
when to use the system on the basis of road,
traffic, visibility, and weather conditions. Active
cruise control is intended for use on highway-
type roadways where traffic is moving rela‐
tively smoothly as well as in slow-moving traf‐
fic congestion. Do not use the system in city
driving; in complex driving situations; heavy
traffic such as during rush hour; on curvy,
winding roads, slippery roads or roads with
sharp curves such as highway off-ramps; dur‐
ing inclement weather such as snow, strong
rain or fog; or when entering interchanges,
service/parking areas or toll booths. It is also
important to regulate your vehicle's speed and
distance setting within applicable legal limits.
Always be ready to take action or apply the
brakes if necessary, especially when the sys‐
tem is actively following a vehicle in front of
you. Otherwise, driving conditions can resultwhich lead to a violation of the law or elevated
risk of an accident.
The minimum initial activation speed is
20 mph/ 30 km/h, and the maximum speed is
110 mph/ 180 km/h. The system can also be
activated while the vehicle is stationary, refer
to page 105.
One lever for all functions1Storing and increasing the desired
speed 1032Storing and reducing the desired
speed 1033Interrupting 105 or deactivating 105 the
system4Retrieving the stored desired speed and
distance 105 or driving away 1055Selecting the distance to the vehicle
ahead 104
Storing the current speed
Push the lever, arrow 1, or pull it briefly, ar‐
row 2.
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system activated, resting your foot on the acel‐
erator pedal will cause the system not to brake
even if necessary. Be certain that floormats or
other objects on the vehicle floor do not inter‐
fere with movement of the acccelerator
pedal.◀
Limits of automatic braking
While active cruise control is capable of
braking your vehicle automatically when you
approach a slower vehicle ahead, it is impor‐
tant to be aware that the ability of the system
to apply the brakes is also limited, e.g. when
you reduce your desired speed sharply. lt uses
only a portion of braking system capacity and
does not utilize the full capacity of the vehicle
braking system. Therefore, the system cannot
decrease your speed for large differences in
speed between your vehicle and the vehicle
ahead. Examples: when you approach a vehicle
traveling at a much lower speed than your own
speed such as approaching a toll booth or
when a much slower vehicle cuts in front of
you at close range.◀
Cruise controlThe concept The system is functional at speeds beginning
at approx. 20 mph/30 km/h.
The speed specified using the lever on the
steering column is maintained.
The system brakes on downhill gradients if en‐
gine braking action is insufficient.
Do not use cruise control
Do not use the system if unfavorable
conditions make it impossible to drive at a con‐
stant 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 vehi‐
cle and cause an accident.◀
One lever for all functions1Storing and maintaining speed or acceler‐
ating2Storing and maintaining speed or deceler‐
ating3Interrupting and deactivating the system4Resuming a speed stored beforehand
Maintaining current speed
Push, arrow 1, or pull, arrow 2, the lever to the
resistance point.
The car's current speed is stored and main‐ tained. It is displayed on the speedometer and
briefly in the instrument cluster.
On uphill gradients, it may prove impossible to
maintain the set speed if current engine power
output is insufficient. If the engine braking ef‐
fect is insufficient on downhill slopes, the sys‐
tem will brake the vehicle slightly.
Increasing desired speed
Repeatedly press the lever to the resistance
point or beyond, arrow 1, until the desired
speed is reached.
▷Each time the lever is pressed to the point
of resistance, the desired speed increases
by approx. 1 mph/1 km/h.▷Each time the lever is pressed beyond the
resistance point, the desired speed is in‐
creased by up to 5 mph/10 km/h.Seite 109Driving comfortControls109
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The system stores and maintains the speed.
Accelerating using the lever Accelerating slightly:
Press the lever to the resistance point, arrow 1,
until the desired speed is reached.
Accelerating significantly:
Press the lever beyond the resistance point,
arrow 1, until the desired speed is reached.
The vehicle accelerates without pressure on
the accelerator pedal. The system stores and
maintains the speed.
Decreasing speed
Repeatedly pull the lever to the resistance
point or beyond, arrow 2, until the desired
speed is displayed.▷Each time the lever is pulled to the resist‐
ance point, the desired speed is decreased
by approx. 1 mph/1 km/h.▷Each time the lever is pulled beyond the
resistance point, the desired speed is re‐
duced by up to 5 mph/10 km/h until the
minimum speed of 20 mph/30 km/h is ach‐
ieved.
The system stores and maintains the speed.
Interrupting the system
Press the lever up or down, arrow 3: dis‐
play 1 in the speedometer changes color, refer
to page 110.
In addition, the system is interrupted:
▷When the brakes are applied.▷When the transmission position D is disen‐
gaged.▷When DTC is activated or DSC is deacti‐
vated.▷When DSC or ABS is intervening.
Warning lamp
The warning lamp lights up if cruise
control has been deactivated auto‐
matically, e.g., by a control intervention of the
DSC. A message appears on the Control Dis‐
play.
Resuming cruising speed
Press button 4:
The stored speed is resumed and maintained.
Deactivating the system▷Press the lever upward or downward twice,
arrow 3.▷Switch off the ignition.
The stored speed is cleared.
Displays in the instrument cluster
1Stored desired speed▷Green: the system is active.▷Orange: the system is interrupted.2Selected desired speed appears briefly
If the display --- mph or --- km/h appears
briefly, conditions may not be adequate to op‐
erate the system.
Call up Check Control messages, refer to
page 77.
Malfunction The warning lamp lights up. The sys‐
tem is malfunctioning or has failed.
A message appears on the Control
Display. More information, refer to page 76.
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Switching on/offPress the button.
Display visibility The visibility of the displays in the Head-up
Display is influenced by:
▷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, check the basic set‐
tings.
Display1Navigation instructions2Active Cruise Control with Stop & Go func‐
tion3Lane departure warning4Cruise control/desired speed5Current speed
The Check Control messages are displayed
briefly if needed.
Selecting displays in the Head-up
Display
1."Settings"2."Head-up display"3."Displayed information"4.Select the desired displays in the Head-up
Display.
The settings are stored for the remote control
currently in use.
Setting the brightness
The brightness is automatically adjusted to the
ambient light.
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