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Do not use washing mechanisms when
the washer fluid reservoir is empty, other-
wise you will damage the washer pump.<
Washer fluid
Washer fluid antifreeze is flammable. For
this reason, keep it away from ignition
sources and store only in the closed original
container out of reach of children. Otherwise,
there is the danger of bodily injury. Always
observe the instructions for use provided on the
containers.<
Filler neck for washer fluid
Only add washer fluid with the engine
cooled down to exclude contact with hot
engine components. Otherwise there is a dan-
ger of fire and to personal safety if the fluid is
spilled.<
All washer nozzles are supplied from one reser-
voir.
Fill with water and – if required – with a washer
antifreeze, according to manufacturer's recom-
mendations.
In order to maintain the mixture ratio, mix
the washer fluid before filling.<
Capacity
Approx. 6.3 US quarts/6 liters.
Cruise control*
The concept
The cruise control with a braking function is
available for use at speeds of approx. 20 mph/
30 km/h and higher. The vehicle stores and
maintains the speed that you set using the lever
mounted on the steering column. To keep the
specified speed constant, the system brakes if
the engine braking effect is not sufficient on a
downhill grade.
Do not use the cruise control under driv-
ing conditions that do not permit a con-
stant speed, e.g. when driving on winding
roads, in heavy traffic or in poor road conditions
such as snow, rain, ice, and loose road surface.
Otherwise you could lose control of the vehicle
and cause an accident.<
One lever for all functions
1Maintaining, storing and increasing the
speed
2Maintaining, storing and reducing the
speed
3Interrupting and deactivating the system
4Resuming stored speed
Maintaining, storing and increasing the
speed
Press the lever to the resistance point, arrow1:
The system maintains and stores the current
vehicle speed. The display1 in the speedome-
ter shows the controlled speed, refer to
page68.
Each time the lever is pressed, the speed
increases by approx. 1 mph or 1 km/h.
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cruise control will, within limits, adjust your
vehicle's speed automatically so that you can
flow with the traffic without having to make con-
stant adjustments. If, for example, while cruis-
ing at the selected speed, you begin to
approach a slower vehicle ahead of you in the
same lane, the system will reduce your vehicle's
speed to the same as that of the vehicle ahead
to maintain your selected distance setting. You
can vary the following distance, which will vary
with speed. Based on your selected distance
setting, the system automatically 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 braking, your vehicle brake
lamps will automatically illuminate to alert a fol-
lowing driver to take action. In addition, it may
be necessary for your vehicle to downshift the
automatic transmission to maintain the dis-
tance setting selected. As soon as the road in
front of you has no moving vehicles, the system
will accelerate to your desired speed. This set
speed is also maintained on downhill grades,
however the vehicle speed can drop below the
set speed when driving uphill if the engine out-
put is not sufficient.
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 avoidance/warning system.
Since this active cruise control system is a new
technology and operates differently from con-
ventional cruise control systems to which you
may be accustomed, it is necessary that you
read all of the pages relating to this system
before use. Carefully read and observe the
information on the system limitations beginning
on page73 to obtain a good command of the
system and its range of applications.
the brake pedal, a somewhat different braking
feel results.
Professional navigation system*
If the vehicle is equipped with a Professional
navigation system, the system adapts the
acceleration and deceleration behavior of the
vehicle to the road on which you are currently
driving.
To ensure that the system has the latest
information 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 control-
ling 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 relatively
smoothly as well as in slow-moving traffic con-
gestion. Do not use the system in city driving; in
complex driving situations; heavy traffic such as
during rush hour; on curvy, winding roads, slip-
pery roads or roads with sharp curves such as
highway off-ramps; during inclement weather
such as snow, strong rain or fog; or when enter-
ing 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
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The selected distance is displayed in the instru-
ment panel.
Use good judgement to select the appro-
priate following distance given road con-
ditions, traffic, applicable laws and State driving
recommendations for safe following distance.
Otherwise, a violation of the law or risk of an
accident could result.<
Interrupting the system
Press the lever up or down and additionally
depress the brake if the vehicle is stationary.
The mark in the speedometer changes color
and the distance indicator goes out.
In addition, the system is interrupted:
>When the brakes are applied
>When transmission position D is disen-
gaged>When DTC is activated or DSC is deacti-
vated
>When DSC is activated
>When the safety belt is unbuckled and the
driver's door is opened while the vehicle is
stationary
>When the system has not detected objects
for an extended period, e. g. on a road with
very little traffic without road edge mark-
ings, or if the radar sensors are dirty, refer to
page72
If the system is interrupted, actively inter-
vene by braking and, if necessary, with
evasive maneuvers; otherwise, there is the dan-
ger of an accident occurring.<
Calling up the stored desired speed and
distance
While driving
Press button4, refer to page68.
All of the displays in the instrument panel lights
up.
While standing
Before leaving the vehicle with the engine
running, engage position P of the auto-
matic transmission and apply the parking brake.
Otherwise, the vehicle may begin to roll.<
If a vehicle detected ahead of you slows to a halt
and your vehicle is also brought to a halt by the
system:
>If the vehicle ahead of you drives away, your
vehicle accelerates automatically as long as
mark 1 for the desired speed in the speed-
ometer is green.
>If the vehicle ahead of you drives away when
mark 1 is orange, depress the accelerator
briefly or press button 4.
Rolling bars in the distance indicator 3
mean that the vehicle ahead of you has
driven away.
If you are standing behind a vehicle with your
brake pedal depressed and the system is deac-
tivated or interrupted: Distance 1, closest
Distance 2
Distance 3
Distance 4, furthest
This distance is set when you acti-
vate the system.
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Tachometer
Do not operate the engine with the needle in the
red overspeed zone of the gauge, refer to arrow.
At high revs in this range, the flow of fuel is
interrupted to protect the engine.
Coolant temperature
Should the coolant, and with it the engine
become too hot, a warning lamp lights up. In
addition, a message appears on the Control
Display.
Checking coolant level, refer to page255.
Engine oil temperature*
When the engine is at operating temperature,
the engine oil temperature is between approx.
1707/806 and approx. 2507/1206.
When the engine oil temperature is too high, a
warning lamp lights up in the instrument panel.
Energy control*
Displays the current fuel consumption. This
allows you to see whether your current driving
style is conducive to fuel economy with mini-
mum exhaust emissions.
Controls Overview
78
Fuel gauge
Fuel tank capacity: approx. 22.5 gallons/
85 liters. You will find information on refueling
on page234.
If the tilt of the vehicle varies for a longer period,
when you are driving in mountainous areas, for
example, the indicator may fluctuate slightly.
Reserve
After the reserve quantity has been reached, a
message briefly appears on the Control Display;
the remaining range is shown in the computer.
Below a range of approx. 30 miles/50 km, the
message remains on the Control Display.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, otherwise engine functions are not
ensured and damage can occur.<
Computer
Displaying information on the
instrument panel
To display the information, press the BC button
on the turn signal lever.
The following information is displayed:>Cruising range
>Average speed
>Average fuel consumption
Information in detail
Cruising range
Displays the estimated cruising range available
with the remaining fuel. The range is projected
based on the driving style over the last 20 miles/
30 km.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, otherwise engine functions are not
ensured and damage can occur.<
Average speed
Periods with the vehicle parked and the engine
stopped are not included in the calculations of
average speed.
To reset average speed: press the BC button on
the turn signal lever for approx. 2 seconds.
Average fuel consumption
The average fuel consumption is calculated for
the time during which the engine is running.
To reset average fuel consumption:
Press the BC button on the turn signal lever for
approx. 2 seconds.
For different routes
You can display the average speed and average
consumption for two different routes on the
Control Display, refer to the following and to
Trip computer
*.
Controls
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Displaying service requirements
1Knob for selecting display
2Service requirements
3Engine oil
4Legally mandated inspections
*
5Front brake pads6Rear brake pads
7Brake fluid
The sequence of the displayed maintenance
items can vary. First the data for the next main-
tenance are displayed.
More information
Detailed information on service
requirements
More information on the scope of service
required can be displayed on the Control Dis-
play.
1."Vehicle Info"
2."Vehicle status"
3."Service required"Required maintenance procedures and legally
mandated inspections are displayed.
You can request more detailed information on
every entry:
Select the entry and press the controller.
To exit from the menu:
Move the controller to the left.
Symbols
No service is currently required.
The deadline for service or a legally man-
dated inspection is approaching. Please
arrange a service appointment.
The service deadline has already passed.
Technology for comfort, convenience and safety
88
Technology for comfort, convenience and
safety
PDC Park Distance Control*
The concept
In addition to the PDC Park Distance Control,
the rear view camera
*, refer to page93, can
also be switched on.
PDC assists you during parking. A slow
approach to an object in front of or behind your
vehicle is announced by:
>Signal tones
>Optical displays
Measurement
Ultrasonic sensors in the bumpers carry out the
measurement.
Their range is approx. 7 ft/2 m.
The acoustic warning begins:
>At approx. 24 in/60 cm for the front
* sen-
sors and the two rear corner sensors.
>At approx. 5 ft/1.50 m for the middle sen-
sors in the rear.
System limitations
PDC cannot replace the personal assess-
ment of the traffic situation. Also make a
direct visual check of the traffic situation around
the vehicle. Otherwise, there could be a risk of
accident, for example due to other road users or
objects outside the detection range of PDC.
Loud sources of sound, inside and outside the
vehicle, could drown out the PDC signal tone.<
Avoid approaching an object too quickly.
Avoid starting off quickly while PDC is not
yet activated.
Otherwise, physical circumstances could cause
the system to issue a warning late.<
Limitations of ultrasonic measurement
The detection of objects can come up against
the limitations of physical ultrasonic measure-
ment, for example:
>When using tow bars and towing hitches
>In the presence of thin or wedge-shaped
objects
>In the presence of low objects
>In the presence of objects with corners and
sharp edges
Low objects that have already been displayed,
e.g. curbs, can disappear again from the detec-
tion area of the sensors before or after a contin-
uous tone sounds.
Higher, protruding objects, e.g. ledges, cannot
be detected.
False warnings
Under the following conditions, PDC may dis-
play a warning even though no obstacle is
present in the detection range:
>In heavy rain
>When the sensors are heavily soiled or iced-
over
>When the sensors are covered with snow
>On rough road surfaces
>In large, rectangular buildings with smooth
walls, e.g. underground garages
>In the presence of heavy exhaust
>Due to the presence of other ultrasonic
sources such as street sweepers, steam
cleaners, or neon lamps.
Automatic activation
With the engine running or the ignition switched
on, shift the selector lever into position R.
Automatic deactivation
The system switches off and the LED goes out:
Technology for comfort, convenience and safety
90
Malfunction
A Check Control message appears in the
instrument panel, refer to page82.
The areas in front of and behind the vehicle
appear in shaded form on the Control Display.
PDC is malfunctioning. Have the system
checked.
In order to assure full functionality:
>Keep sensors clean and free of ice.
>Do not spray the sensors with high-pres-
sure cleaners for long periods and keep the
spray nozzle at least 12 in/30 cm away from
them.
Surround View*
The concept
Surround View encompasses the following sys-
tems:
>Top View
*, refer to page90
>Side View
*, refer to page92
>Rear view camera
*, refer to page93
It provides assistance when parking and
maneuvering and at blind driveways and inter-
sections.
Top View*
The concept
Top View assists you when parking and maneu-
vering. To accomplish this, the door region and
road surface region are shown on the Control
Display.
Detection
Detection is carried out by two cameras inte-
grated into the exterior mirror and the rear view
camera.
The range is:
>Approx. 7 ft/2 m to the side
>Approx. 7 ft/2 m to the rear
Obstacles up to the height of the exterior mir-
rors are thus detected in a timely fashion.
System limitations
In the following situations, the function of Top
View is limited:
>When a door is open
>When the liftgate is open
>When the exterior mirrors are folded in
>Under poor lighting conditions
The arrows next to the vehicle are displayed in a
shaded form on the Control Display and a sym-
bol appears at the corresponding location on
the vehicle.
Also make a direct visual check of the
traffic situation around the vehicle. Other-
wise, there could be a risk of accident, for exam-
ple due to other road users or objects outside
the image range of the camera.<
Automatic activation
With the engine running or the ignition switched
on, shift the selector lever into position R.
The images from Top View and PDC are dis-
played when the system has been switched on
using iDrive.
Automatic deactivation
The system switches off and the LED goes out:
>After approx. 165 ft/50 m when driving for-
ward
>At speeds over approx. 25 mph/35 km/h
when driving forward
Switch the system back on as needed.