ACC BMW X6 2012 E71 Service Manual

Controls
75Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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.<

Controls Overview
76
Controls Overview
Odometer, outside
temperature display, clock
1Knob in the instrument cluster
2Time, outside temperature, and date
3Odometer and trip odometer
Knob in the instrument panel
>With ignition switched on
Press knob:
Resetting trip odometer
Press the knob for approx. 5 seconds:
Displaying service requirements, refer to
page79
>With ignition switched off
Press knob:
Briefly displaying time, outside temperature
and odometer
Units of measure
To select the respective units of measure, miles
or km for the odometer as well as 7 or 6 for
the outside temperature, refer to page86.
The setting is stored for the remote control cur-
rently in use.
Time, date, outside temperature
From radio readiness the outside temperature
and the time are displayed.
Setting the time, refer to page85.
Retrieving date
Press the button on turn signal lever upward;
the date appears.
To set the date, refer to page85.
Pressing the button upward or downward sev-
eral times changes the display between clock,
outside temperature, date, and Check Control
messages, refer to page84.
Outside temperature warning
If the display drops to +377/+36, a signal
sounds and a warning lamp lights up. A mes-
sage appears on the Control Display. There is
an increased danger of ice.
Even at temperatures above +377/
+36 ice can form. Therefore, drive care-
fully, e.g. on bridges and sections of road in the
shade, otherwise there is an increased accident
risk.<
Odometer and trip odometer
Resetting trip odometer:
Press knob 1 in the instrument panel with the
ignition switched on.
When vehicle is parked
To briefly display the time, outside temperature
and mileage after the remote control has been
removed from the ignition lock:
Press knob 1 in the instrument panel.

Controls Overview
84
Displaying stored Check Control
messages
1.Press the button on the turn signal lever
downward. "CHECK OK" or the stored
Check Control messages appear in the dis-
play.
"CHECK OK" is shown if no messages are
present.
Check Control messages are accompanied
by text messages on the Control Display.
2.Press the button to display additional mes-
sages, the time and outside temperature, or
the date.
Displaying stored Check Control
messages
1."Vehicle Info"
2."Vehicle status"
3."Check Control"
4.Select the text message.
Speed limit
You can enter a speed and a Check Control
message indicates when you have reached this
speed. This enables you, for example, to
receive warnings if you exceed a speed limit in an urban area.
You are only warned of reaching this speed a
second time if your vehicle speed falls below it
again by at least 3 mph/5 km/h.
Displaying, setting, or changing speed
1."Settings"
2."Speed"
3."Warning at:"
4.Turn the controller until the desired limit is
displayed.
5.Press the controller.
The speed limit is stored.
Applying your current speed as limit
1."Settings"
2."Speed"
3."Select current speed"
4.Press the controller.
The system applies your current speed as the
limit.
Activating/deactivating the limit
1."Settings"
2."Speed"

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.

Technology for comfort, convenience and safety
92
Cameras
The lenses of the Top View cameras are on the
undersides of the exterior mirror housings.
The presence of dirt can impair image quality.
Clean the lens with a moist, nonabrasive cloth.
Side View*
The concept
Side View provides an early look at cross traffic
at blind driveways and intersections. Road
users concealed by obstacles to the left and
right of the vehicle can only be detected from
the driver's seat at the last minute. To improve
visibility, two cameras in the front of the vehicle
record the traffic situation on each side.
System limits
The maximum detection range of the cameras
is 330 ft/100 m.
Display
The images from both cameras are shown
simultaneously on the Control Display.
Check the traffic situation around the
vehicle on blind driveways and intersec-
tions with your own eyes. Otherwise, an acci-
dent could result from road users or objects
located outside the picture area of the Side
View cameras.<
Automatic deactivation
The system switches off: above approx. 9 mph/
15 km/h. If needed, switch the system back on.
Switching on/off manually
Press the button.
Image on the Control Display
The traffic area to the left and right is displayed
on the Control Display.
Guidelines at the bottom of the image show the
position of the front of the vehicle.
Brightness
With the Side View switched on:
1.Select the symbol.
2.Turn the controller until the desired setting
is displayed and then press the controller.
Contrast
With the Side View switched on:
1.Select the symbol.
2.Turn the controller until the desired setting
is displayed and then press the controller.

Controls
93Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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.

Controls
95Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Three-dimensionally-shaped markings are dis-
played.
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.
Brightness
With the rear view camera switched on:
1.Select the symbol.
2.Turn the controller until the desired setting
is displayed and then press the controller.
Contrast
With the rear view camera switched on:
1.Select the symbol.
2.Turn the controller until the desired setting
is displayed and then press the controller.
Camera
The lens of the rear view camera is under the
grasping lip of the liftgate.
The presence of dirt can impair image quality.
Clean the lens with a moist, nonabrasive cloth.
Driving stability control
systems
Your BMW is equipped with an extended array
of systems designed to enhance and maintain
vehicle stability under extreme conditions.
ABS Antilock Brake System
ABS prevents locking of the wheels during
braking. Safe steering response is maintained
even during full braking. Active safety is thus
increased.
ABS is operational every time you start the
engine. Braking safely, refer to page140.
CBC Cornering Brake Control
When braking during curves or when braking
during a lane change, driving stability and steer-
ing response are improved further.
Electronic brake-force distribution
The system controls the brake pressure in the
rear wheels to ensure stable braking behavior.
Brake assistant
When you apply the brakes rapidly, this system
automatically produces the maximum braking
force boost and thus helps to achieve the short-
est possible braking distance during full brak-
ing. This system exploits all of the benefits pro-
vided by ABS.
Do not reduce the pressure on the brake pedal
for the duration of the full braking.
DSC Dynamic Stability Control
DSC prevents traction loss in the driving wheels
when starting off and accelerating. The system
also identifies unstable driving conditions, such
as a loss of traction at the rear of the vehicle or
sliding of the vehicle in its front wheels. In these
cases, DSC helps the vehicle maintain a safe
course within physical limits by reducing engine
output and through braking actions in the indi-
vidual wheels.
The laws of physics cannot be repealed,
even with DSC. An appropriate driving
style remains the responsibility of the driver.

Technology for comfort, convenience and safety
96 Therefore, do not restrict the additional safety
margin with a risky driving style, as otherwise
there is a risk of an accident.<
Deactivating DSC
Press and hold the button until the indicator
lamp for DSC lights up and DSC OFF appears in
the instrument panel, but do not press the but-
ton for longer than approx. 10 seconds. DTC
Dynamic Traction Control and DSC are deacti-
vated together. Stabilizing interventions are
now not carried out.
A message appears on the Control Display.
Please note any supplementary information
that appears there.
To increase vehicle stability, activate DSC again
as soon as possible.
Activating DSC
Press the button: the indicator lamp in the
instrument panel goes out.
For better control
The indicator lamp flashes:
DSC is controlling the drive forces and
brake forces.
The indicator lamp lights up:
DSC and DTC are malfunctioning.
DSC deactivated:
The indicator lamp lights up and
DSC OFF appears in the instrument
panel.DSC and DTC deactivated.
DTC Dynamic Traction Control
DTC is a version of DSC in which the drive out-
put is optimized for particular road conditions,
e.g. unplowed snow-covered roads. The sys-
tem assures the maximal drive output, but with
reduced driving stability. It is therefore neces-
sary to drive with appropriate caution.
You may find it useful to briefly activate DTC
under the following special circumstances:
>When driving in sand, on snowy inclines, in
slush or on unplowed, snow-covered road
surfaces
>When rocking a stuck vehicle free or start-
ing off in deep snow, sand or on loose
ground
>When driving with snow chains
*
Activating DTC
Press the button: the indicator lamp for DSC
lights up and TRACTION appears in the instru-
ment panel.

Technology for comfort, convenience and safety
98 speed, approx. 5 mph/8 km/h, and then main-
tains this speed at a constant.
Only use HDC in transmission positions D or R.
Increasing or reducing speed
You can use the accelerator or brakes to vary
this automatically controlled speed within a
range extending from approx. 4 mph/6 km/h to
15 mph/25 km/h.
You can specify a target speed within the same
range by using the lever of the cruise control.
With downhill grade over 10Ξ you can reduce
the speed to approx. 3 mph/4 km/h. Pull the
lever of the cruise control beyond the resis-
tance point, arrow3.
1Increasing speed
2Pull to the resistance point:
Reduce speed to approx. 4 mph/6 km/h
3Pull beyond the resistance point:
With downhill grade over 10Ξ, reduce
speed to approx. 3 mph/4 km/h.
Activating HDC
Press the button; the LED lights up.
The HDC display is shown in the instrument
panel.The LED flashes when the brakes are applied
automatically.
Deactivating HDC
Press the button again. The LED and the HDC
display go out.
HDC is automatically deactivated at speeds
over approx. 37 mph/60 km/h.
Displays* in instrument panel
1Display for target speed
2HDC display
Malfunction
HDC is temporarily unavailable in the following
situations due to a high brake temperature:
>The LED in the button and the display HDC
go out during HDC operation.
>The LED in the button and the HDC display
do not light up when the button is pressed.
Malfunction of driving stability control
systems
When driving on poor roads, avoid using
full throttle or pressing the accelerator
beyond the kickdown point and also avoid
heavy braking. Otherwise, the drive train may be
damaged or accidents can occur.<
Adaptive Drive*
The concept
Adaptive Drive reduces the body roll which
occurs when cornering quickly or during fast
evasive maneuvers. In addition, Adaptive Drive