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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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caused by damage incurred during parking, for 
example.
For US owners only
The transmitter and receiver units comply with 
part 15 of the FCC/Federal Communications 
Commission regulations. Operation is gov-
erned by the following:
FCC ID:
>OAYARS3-A
Compliance statement:
This device complies with part 15 of the FCC 
Rules. Operation is subject to the following two 
conditions:
>This device must not cause harmful inter-
ference, and
>This device must accept any interference 
received, including interference that may 
cause undesired operation.
Any unauthorized modifications or changes to 
these devices could void the user's authority to 
operate this equipment.
System limits
Speed range
Best results are achieved when using the sys-
tem on well-developed roads and highways. 
The desired speed can be selected between 
20 mph/30 km/h and 110 mph/180 km/h.
The system can also be activated when station-
ary.
Comply with the legal speed limit in every situa-
tion when using the system.
Detection range
The detection capacity of the system and the 
automatic braking capacity are limited. For 
instance, two-wheeled vehicles driving ahead 
of you might not be detected.
Because of the limitations to the detec-
tion capacity of the system, you should be 
alert at all times so that you can intervene 
actively, if necessary; otherwise, there is the 
danger of an accident occurring.<
Deceleration
The system does not decelerate when a sta-
tionary obstacle is located in the same lane, e.g. 
a vehicle at a red traffic light or at the end of a 
traffic congestion.
The system also does not respond to:
>Pedestrians or similarly slow road users.
>Red traffic lights.
>Stationary objects.
>Cross traffic.
>Approaching traffic.
A warning might not be issued when 
approaching a stationary or very slow-
moving obstacle. Take action yourself, other-
wise there is a risk of an accident.< 

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the system is interrupted and the distance indi-
cator goes out until the pedal is fully released. 
As soon as you fully release the accelerator, the 
system will again control your cruising speed 
and distance setting. While driving with the sys-
tem activated, resting your foot on the acceler-
ator pedal will cause the system not to brake 
even if necessary. Be certain that floor mats or 
other objects on the vehicle floor do not inter-
fere with movement of the accelerator pedal.<
While active cruise control is capable of 
braking your vehicle automatically when 
you approach a slower vehicle ahead, it is 
important to be aware that the ability of the sys-
tem to apply the brakes is also limited, e. g. 
when you reduce your desired speed sharply. It 
uses only a portion of braking system capacity 
and does not utilize the full capacity of the vehi-
cle braking system. Therefore, the system can-
not 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.< 

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Opening the computer via iDrive
1."Vehicle Info"
2."Onboard info" or "Trip computer"
Displays on the "Onboard info":
>Cruising range
>Distance from destination
>Estimated time of arrival if:
>Entering a distance manually in the com-
puter, see below.
>A destination was entered in the naviga-
tion system
*, refer to page149.
Displays on the "Trip computer":
>Departure time
>Trip duration
>Trip distance
Both displays show:>The average speed and
>The average fuel consumption.
Resetting the fuel consumption and 
speed
You can reset the values for the average speed 
and average fuel consumption:
1.Select the respective menu item and press 
the controller.
2.To confirm your selection, press the con-
troller again.
Resetting the trip computer
You can reset all values:
1."Vehicle Info"
2."Trip computer"
3."Reset"
Service requirements
The remaining driving distance and the date for 
the next maintenance are displayed briefly with 
the ignition switched on.
To determine the extent of maintenance 
required, you can also display the remaining 
distance or the service date individually in the 
instrument panel. 

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>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.
Switching on/off manually
Press the button.
>On: LED lights up
>Off: LED goes out
Signal tones
When nearing an object, the position is corre-
spondingly indicated by an interval tone. Thus, 
an object detected to the left rear of the vehicle 
will be indicated by a signal tone from the left 
rear speaker, etc.
The shorter the distance to the object 
becomes, the shorter the intervals become.
If the distance to the nearest object falls to 
below roughly 1 ft/30 cm, then a continuous 
tone sounds.
If objects are present both in front of and behind 
the vehicle, then an alternating, continuous 
tone sounds.
An intermittent tone is interrupted after approx. 
3seconds:
>When the vehicle remains stationary in front 
of an object that has only been detected by 
one of the corner sensors
>When driving parallel to a wall
The signal tone is switched off:
>When the vehicle is more than approx. 
4.0 in/10 cm away from an object
>When the selector lever is in the P position
Volume
You can adjust the volume of the signal tone, 
refer to page87.
The setting is stored for the remote control cur-
rently in use.
Optical warning
The approach to an object can be shown on the 
Control Display. Objects that are farther away 
are displayed on the Control Display before a 
signal tone sounds.
The display appears as soon as PDC is acti-
vated.
If the last image selected was the rear view 
camera, this is displayed again. To switch to 
PDC:
1.Select the   "Switch off rear view cam-
era" on the Control Display.
2.Press the controller.
The setting is stored for the remote control cur-
rently in use.
Image on the Control Display
Switching on the rear view camera 
using iDrive
With PDC activated:
1.Select the   "Rear view camera" symbol.
2.Press the controller.
The image of the rear view camera is displayed. 
The setting is stored for the remote control cur-
rently in use. 

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Cameras
The two camera lenses are located on the sides 
of the bumper.
The presence of dirt can impair image quality.
Clean the objective, refer to page260.
Rear view camera*
The concept
The rear view camera assists you when parking 
and maneuvering in reverse. To accomplish 
this, the region behind your vehicle is shown on 
the Control Display.
System limitations
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 rear view camera.<
T he  r e a r  v i e w  c a m e r a  i s  n o t  a b l e  t o  de t e c t  
objects at greater heights or protruding 
objects such as projections from walls.<
Automatic activation
With the engine running or the ignition switched 
on, shift the selector lever into position R.
The image of the rear view camera is displayed 
when the system has been switched on using 
iDrive.
Automatic deactivation
The system switches off and the LED goes out:
>After approx. 33 ft/10 m when driving for-
ward>At speeds over approx. 9 mph/15 km/h 
when driving forward
Switch the system back on as needed.
Switching on/off manually
Press the button.
>On: LED lights up.
>Off: LED goes out.
If PDC is displayed, switch on the rear view 
camera using iDrive, refer to page89.
Assistance functions
Function requirements
>Rear view camera is switched on.
>Liftgate is completely closed.
Pathway lines
>Can be displayed in the image of the rear 
view camera when the transmission is in 
reverse.
>Help estimate the required amount of space 
when parking and maneuvering on a flat 
road surface.
>Depend on the current steering angle and 
are continuously adapted to movements of 
the steering wheel.