2006 BMW 650I CONVERTIBLE brake sensor

Driving
70 The selected distance is displayed in the instru-
ment cluster.
Use good judgment to select the appro-
priate following distance given road con-
ditions, traffic, applicable laws and driving rec-
ommendations for safe following distance.<
Deactivate system
Press the lever up or down. The displays in the
instrument cluster disappear.
You also deactivate the system when you apply
the brakes, shift very slowly, or shift into neutral.
In addition, the system is deactivated automati-
cally:
>when you activate the DTC Dynamic
Traction Control
>when you deactivate the DSC Dynamic
Stability Control>when the system does not recognize any
objects for a longer time, e. g. on infre-
quently traveled roads without a shoulder or
guard rails, or if the radar sensor is covered
with dirt, refer to page71
>when the speed is reduced to below
20 mph/30 km/h due to a traffic situation
The system deactivates automatically
when the speed is set to below 20 mph/
30 km/h. A signal sounds and a message
appears in the Control Display. The active inter-
vention of the driver is required, otherwise there
is the danger of an accident.<
Resume stored desired speed and
distance
Press button 4.
The displays appear in the instrument cluster.
When you switch off the ignition, the stored
desired speed is deleted.
Displays in instrument cluster
1Stored desired speed
2Lights up yellow: vehicle driving ahead is
detected
Flashes red and a signal sounds: the system
cannot establish the distance, you must
apply the brakes
Flashes yellow: driving stability control sys-
tems intervene and the active cruise control
is deactivated
3Selected distance to vehicle driving ahead:
lights up as soon as the system is activated
4Selected desired speed appears briefly Distance 1
Distance 2
Distance 3
This distance is set when the
system is used for the first time
after starting the engine.
Distance 4

Controls
71Reference
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Mobility
If the display ACC --- mph/km/h briefly
appears in the instrument cluster, it might
be that conditions necessary for operation are
not currently being met. To call up Check Con-
trol messages, refer to page79.<
Warning lamps
The display2 flashes red and a sig-
nal sounds.
The system is warning you to inter-
vene by braking or executing an
evasive maneuver. The active
cruise control cannot automatically restore the
distance to the vehicle driving ahead.
This display does not, however, relieve the
driver of the responsibility for adapting desired
speed and driving style to traffic conditions.
The display2 flashes yellow.
Automatic intervention by ABS or
DSC. The active cruise control
intervenes by braking until you
actively take over.
Radar sensor
Heavy rain, dirt, snow, or ice can impair the
detection of vehicles ahead. If necessary, clean
the radar sensor under the front bumper. In
doing so, be especially careful when removing
layers of snow and ice.
If the sensor is incorrectly aligned, the active
cruise control cannot be activated.
Things to know about active cruise control
As with conventional cruise control sys-
tems, active cruise control in no way
diminishes or substitutes for the driver's own
personal responsibility, alertness and aware-
ness in adjusting speed, braking or otherwise
controlling 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. Do not use this system in
city driving; heavy traffic such as during rush
hour; on curvy, winding roads, slippery roads or roads with sharp curves such as highway off-
ramps; during inclement weather such as snow,
heavy rain or fog; or when entering inter-
changes, 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 system is actively following a vehicle in front
of you.<
Always remember that the range and abil-
ity of the system do have physical limita-
tions. It will not apply the brakes or decelerate

Technology for comfort, convenience and safety
86 iDrive, for principle details, refer to page16.
1.Open the start menu.
2.Press the controller to open the menu.
3.Select "Vehicle settings" and press the
controller.
4.Select "PDC" and press the controller.
5.Select "PDC display on" and press the con-
troller.
The PDC screen is activated.
The display appears on the Control Display as
soon as PDC is activated.
The setting is stored for the remote control cur-
rently in use.
System limits
Even with PDC, final responsibility for
estimating the distance between the
vehicle and any obstacles always remains with
the driver. Even when sensors are involved,
there is a blind spot in which objects cannot be
detected. This applies especially in those cases
where the system approaches the physical con-
straints of ultrasonic measurement, as occurs
with tow bars and trailer couplings, and in the
vicinity of thin or wedge-shaped objects. Low
objects already displayed, e.g. a curb, can dis-
appear from the detection area of the sensors
again before a continuous tone sounds. Higher,
protruding objects, e.g. ledges, cannot be
detected. Loud noises from outside and inside
the vehicle may prevent you from hearing the
PDC signal tone.<
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 the wheels from locking during
braking. Safe steering response is maintained
even during hard braking. This increases active
driving safety.
ABS is operational every time you start the
engine. For information on safe braking, refer to
page115.
CBC Cornering Brake Control
This system provides further enhancements to
vehicle stability and steering response when
braking while cornering or when braking during
a lane change.
Electronic brake-force distribution
This system controls the brake system's appli-
cation pressure at the rear wheels to ensure
stable deceleration.
DBC Dynamic Brake Control
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 pressure on the brake pedal for
the duration of the braking maneuver. DBC is
switched off when the brake pedal is released.
DSC Dynamic Stability Control
DSC prevents traction loss in the driving wheels
when starting off and accelerating. DSC also
detects unstable driving conditions such as
fishtailing or sliding of the vehicle's front
wheels. In these cases, DSC helps the vehicle
safely stay on course within the physical limits
by reducing the engine output and by applying
the brakes differently in the individual wheels.

Mobility
195Reference
At a glance
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Maintenance
The BMW Maintenance
System
The BMW Maintenance System supports the
preservation of the traffic and operating safety
of your BMW. The service schedule also
includes operations related to the vehicle's
comfort and convenience features, such as
replacement of the filters for the inside air.
The ultimate objective is to ensure economical
maintenance by providing the ideal service for
your vehicle.
Should the day come when you decide to sell
your BMW, you will find that a complete dealer
service history is an asset of inestimable value.
CBS Condition Based Service
Sensors and special algorithms take the differ-
ent driving conditions of your BMW into
account. Condition Based Service uses this to
determine the current and future service
requirements. By letting you define a service
and maintenance regimen that reflects your
own individual requirements, the system builds
the basis for trouble-free driving.
You can set the Control Display to show
remaining distances and times of selected
maintenance intervals and legally mandated
deadlines, refer to page77:
>Engine oil
>Brakes, front and rear separately
>Microfilter/activated-charcoal filter
>Brake fluid>Spark plugs
>Vehicle check
>Legally required tests depending on local
regulations
Service data in remote control
Your vehicle stores this information continu-
ously in the remote control while the vehicle is
being driven. After accessing the data stored in
the remote control, your BMW Service Advisor
can suggest precisely the right array of service
procedures for your own individual vehicle.
For this reason, when you take your vehicle in
for service, you should give the BMW Service
Advisor the remote control last used to drive it.
Make sure the date in the iDrive is always
set correctly, refer to page83; otherwise,
the effectiveness of CBS Condition Based Ser-
vice is not ensured.<
Service and Warranty Information
Booklet for US models and
Warranty and Service Guide Booklet
for Canadian models
Please consult your Service and Warranty Infor-
mation Booklet for US models and Warranty
and Service Guide Booklet for Canadian models
for additional information on service require-
ments.
Have service and repair operations per-
formed at your BMW center.
Take the time to ensure that these service pro-
cedures are confirmed by entries in your vehi-
cle's Service and Warranty Information Booklet
for US models and Warranty and Service Guide
Booklet for Canadian models. These entries
verify that your vehicle has received the speci-
fied regular maintenance, and may also be
required when submitting warranty claims.<

217Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Everything from A to Z
Index
"..." Identifies Control Display
texts used to select
individual functions, and
indicates where to find them
in the text.
A
ABS Antilock Brake
System86
ACC, refer to Active cruise
control67
Acceleration assistant with
SMG64
Accessories6
Activated-charcoal filter104
Activating hour signal83
"Activation time" for parked
car ventilation104
Active cruise control67
– Indicator lamp70
– radar sensor71
– selecting distance69
– warning lamps71
Active steering90
– warning lamp90
Adapter for spare key28
Adaptive brake lamps, refer to
Brake force display90
Adaptive Head Light97
"Add digits" for mobile
phone168
"Address book" for
navigation128
Address for navigation
– deleting129
– entering121,124
– selecting129
– storing128
– storing current position128
"Add to address book"128"Add to destination
list"124,125
Adjusting confirmation signals
for locking and unlocking31
Adjusting the thigh support48
Adjusting tone in audio mode,
refer to Tone control141
"After opening door"50
"After unlocking"50
Airbags90
– deactivating, refer to
Exception for front
passenger's seat56
– sitting safely47
– warning lamp92
Air distribution
– automatic101
– manual102
Airing, refer to Ventilation103
Air recirculation, refer to AUC
Automatic recirculated-air
control103
"Air recirculation on / off"54
Air vents, refer to
Ventilation103
Air volume102
AKI, refer to Fuel
specifications183
Alarm system35
– avoiding unintentional
alarms36
– interior motion sensor36
– switching off alarm35
– switching off tilt alarm
sensor and interior motion
sensor36
– tilt alarm sensor36
All around the center
console14
All around the steering
wheel10
"All channels"150"All doors"30
All-season tires, refer to
Winter tires189
"All stations" on the radio,
selecting144,147
Alterations, technical, refer to
For your own safety6
"AM", reception
range140,144
Antenna for mobile phone162
Antifreeze
– coolant193
– washer fluid66
Antilock Brake System
ABS86
Anti-theft alarm system, refer
to Alarm system35
Anti-theft system, refer to
Central locking system29
Anti-trapping mechanism
– glass sunroof40
– power windows39
Approved axle loads, refer to
Weights210
Approved engine oils192
Approved gross vehicle
weight, refer to Weights210
Armrest, refer to Center
armrest108
Arrival time
– refer to Computer76
– refer to Starting destination
guidance132
"Arrow display" during
Navigation133
Ashtray109
Assist, refer to
BMW Assist174
Assistance systems, refer to
Driving stability control
systems86
Assistance window20