2010 BMW 650I CONVERTIBLE brake light

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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 provided,
there is a blind spot in which objects can no
longer be detected. The system is also subject
to the physical limits that apply to all forms of
ultrasonic measurement, such as those
encountered with tow bars and trailer cou-
plings, or thin and wedge-shaped objects etc.
Low objects already displayed, e. g. curbs, can
also disappear from the detection area of the
sensors again before or after a continuous tone
already sounds. Higher, protruding objects, e.g.
ledges, cannot be detected. For this reason,
drive with care; otherwise, there is a danger of
personal injury or property damage.
Loud sources of sound, inside and outside the
vehicle, could drown out 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.
Antilock Brake System ABS
ABS prevents locking of the wheels during
braking. Safe steering response is maintained
even during full braking. Active safety is thus
increased.
The ABS is operational every time you start the
engine. For information on safe braking, refer to
page120.
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
produces maximum braking force boosting and
thus helps to achieve the shortest possible
braking distance during full braking maneuvers.
This system exploits all of the benefits provided
by ABS.
Do not reduce the pressure on the brake pedal
for the duration of the full braking.
Adaptive brake assistant*
In conjunction with the active cruise control
with the stop-and-go function, the adaptive
brake assistant ensures that the brake
responds even more quickly during braking
with the brake assistant.
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 always remains the responsibility of the
driver. Therefore, do not restrict the additional
safety margin with a risky driving style, as other-
wise there is a risk of an accident.<
Deactivating DSC
Press the button until the DSC indicator lamp in
the instrument cluster lights up, but not longer

Technology for comfort, convenience and safety
84 than approx. 10 seconds. DTC Dynamic Trac-
tion Control and DSC are deactivated together.
Stabilizing and drive output promoting actions
are no longer executed. The stability-promoting
intervention of the active steering
* is also deac-
tivated, refer to page89.
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 cluster goes out.
For better control
The indicator lamp flashes:
DSC controls the drive forces and
brake forces.
The indicator lamp lights up:
DSC is 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 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 or on loose ground
>When driving with snow chains
*
Activating DTC
Press the button briefly; the DTC indicator lamp
in the instrument cluster lights up.
For better control
The indicator lamp flashes:
DTC controls the drive forces and
brake forces.
The indicator lamp lights up:
DTC is activated.
Deactivating DTC
Press the button again; the DTC indicator lamp
in the instrument cluster goes out.
Malfunction in driving stability control
systems
The warning lamp for the brake system
lights up yellow, together with the indi-
cator lamps for ABS, DSC and Tire
Pressure Monitor or Flat Tire Monitor.
A message appears on the Control Dis-
play. The driving stability control sys-
tems have failed. While you may con-
tinue, you should remember to proceed
cautiously and drive defensively while
avoiding full brake applications. The
Tire Pressure Monitor or the Flat Tire Monitor is
also malfunctioning. Have the system checked
as soon as possible.

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Display of the previously described
malfunction in Canadian models.
The DSC indicator lamp lights up. A
message appears on the Control Dis-
play. A malfunction has occurred in the
DSC and DTC. The stabilizing actions are no
longer available. The vehicle remains opera-
tional. Have the system checked as soon as
possible.
The brake system warning lamp lights
up yellow. A message appears on the
Control Display. The brake assistant is
defective. Have the system checked as soon as
possible.
Display of the previously described
malfunction in Canadian models.
Drive-off assistant
The drive-off assistant enables you to start off
conveniently on slopes. The parking brake is
not required for this purpose.
1.Hold the vehicle with the brake.
2.Release the brake and begin to drive imme-
diately.
After releasing the brake, begin to drive
immediately; otherwise, the drive-off
assistant no longer holds the vehicle after
approx. 2 seconds and your vehicle will start to
roll backward.<
Dynamic Drive*
The concept
Dynamic Drive minimizes body roll and opti-
mizes vehicle stability during cornering and
evasive maneuvers.Dynamic Drive is based on active stabilizers on
the front and rear axles. Suspension compli-
ance adapts to suit driving conditions, varying
from performance-oriented during cornering to
smooth and comfort-oriented when the vehicle
is proceeding in a straight line. During vehicle
operation, the system continuously runs
through closed-loop control cycles lasting only
fractions of a second.
The system assumes operational status each
time you start the engine.
FTM Flat Tire Monitor*
The concept
The Flat Tire Monitor detects a pressure loss in
one tire by comparing the speeds of the individ-
ual wheels during driving.
In the event of a pressure loss, there is a change
in the rolling circumference and therefore the
rotation speed of the corresponding wheel. The
system detects this change and reports it as a
flat tire.
Functional requirement
The system must have been initialized when the
tire inflation pressure was correct; otherwise,
reliable signaling of a flat tire is not ensured.
The initialization must be repeated after
every correction of the tire inflation pres-
sure and after every tire or wheel change.<
System limits
The Flat Tire Monitor is unable to warn
the driver of sudden, severe tire damage
caused by external factors, nor can it identify
the gradual loss of pressure that will inevitably
occur in all four tires over a lengthy period of
time.<
In the following situations, the system could be
delayed or malfunction:
>System has not been initialized
>Driving on snowy or slippery road surface

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Switching on/off
Press the button on the steering wheel.
>The two lines1 indicate that the system is
activated.
>The two arrows2 mean that the system has
detected one or two lane demarcation lines
from a speed of approx. 40 mph/70 km/h
and warns accordingly.
If you activate the system below a speed of
approx. 40 mph/70 km/h, a message will appear
stating that the system is not active until this
speed is reached.
A warning will be canceled:
>after approx. 3 seconds
>if you return to your lane
>if you brake heavily
>if you signal
System limits
The Lane Departure Warning cannot
serve as a substitute for your personal
judgment in determining the course of the road.
If the system issues a warning, do not move the
steering wheel with unnecessary severity, as
otherwise you could lose control of the vehi-
cle.<
The function of the system may be limited in the
following example situations:
>in heavy fog, rain or snowfall
>with worn-away, poorly visible demarcation
lines, or lines that run together or apart or
are unclear, e.g. in road construction areas
>when demarcation lines are covered by
snow, ice, dirt or a great deal of water
>in tight curves or on narrow roads>when demarcation lines are not white
>when demarcation lines are covered by
objects
>when driving up close behind a vehicle driv-
ing ahead
>with bright counter light
>when the windshield is fogged up, dirty or
covered with stickers, vignettes etc. in the
area of the inside rearview mirror

Things to remember when driving
120 the road surface, ultimately undermining your
ability to steer and brake the vehicle.<
The risk of hydroplaning increases as the tread
depth of the tires decreases, refer also to Mini-
mum tire tread on page199.
Driving through water
Do not drive through water on the road if it
is deeper than 1 ft/30 cm, and then only at
walking speed at the most. Otherwise, the vehi-
cle's engine, the electrical systems and the
transmission may be damaged.<
Using pranking brake on inclines
On inclines, do not hold the vehicle in
place for a long time by riding the clutch;
use the parking brake. Otherwise greater clutch
wear will result.<
Braking safely
Your BMW is equipped with ABS as a standard
feature. In situations that require it, it is best to
brake with full force. Since the vehicle maintains
steering responsiveness, you can still avoid
possible obstacles with a minimum of steering
effort.
Pulsation of the brake pedal, combined with
sounds from the hydraulic circuits, indicate that
ABS is in its active mode.
Do not drive with your foot resting on the
brake pedal. Even light but consistent
pedal pressure can lead to high temperatures,
brake wear and possibly even brake failure.<
Driving in wet conditions
When roads are wet or there is heavy rain,
briefly exert gentle pressure on the brake pedal
every few miles. Monitor traffic conditions to
ensure that this maneuver does not endanger
other road users. The heat generated in this
process helps dry the pads and rotors to ensure
that full braking efficiency will then be available
when you need it.
Hills
To prevent overheating and thus reduced
efficiency of the brake system, downshift to a gear in which only minimal brake applica-
tions are needed when descending long or
steep downhill stretches. Even light but consis-
tent pressure on the brake can lead to high tem-
peratures, brake wear and possibly even brake
failure.<
The braking effect of the engine can be further
increased by downshifting, if necessary all the
way down into first gear. This strategy helps
you avoid placing excessive loads on the brake
system. For information on downshifting in the
manual mode of the sport automatic transmis-
sion, refer to page59.
Do not drive with the clutch depressed, in
idle or with the engine switched off, other-
wise there will be no engine braking action or
support of the braking force and steering.
Never allow floor mats, carpets or any other
objects to protrude into the area of movement
of the pedals and impair their operation.<
Corrosion on brake rotors
When the vehicle is driven only occasionally,
during extended periods when the vehicle is not
used at all, and in operating conditions where
brake applications are less frequent, there is an
increased tendency for corrosion to form on
rotors, while contaminants accumulate on the
brake pads. This occurs because the minimum
pressure which must be exerted by the pads
during brake applications to clean the rotors is
not reached.
Should corrosion form on the brake rotors, the
brakes will tend to respond with a pulsating
effect that even extended application will fail to
cure.
When vehicle is parked
Condensation forms in the air conditioner sys-
tem during operation, and then exits under the
vehicle. Traces of condensed water under the
vehicle are therefore normal.
Cargo loading
To avoid loading the tires beyond their
approved carrying capacity, never over-

Mobility
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Do not remove the covers, and never
stare into the unfiltered light for several
hours, as irritation of the retina could result.<
Xenon lamps
The service life of these bulbs is very long and
the probability of a failure is very low, provided
that they are not switched on and off an unusual
number of times. If one of these bulbs should
nevertheless fail, it is possible to continue driv-
ing with great caution using the fog lamps, pro-
vided traffic laws in your area do not prohibit
this.
Have work on the xenon lighting system
performed only by your BMW center or a
workshop that works according to BMW repair
procedures with correspondingly trained per-
sonnel. Due to the high voltage present in the
system, there is a danger of fatal injuries when
work is carried out improperly.<
Parking lamps, roadside parking
lamps, daytime running lamps
The illustration shows the left-hand side of the
engine compartment.
35-watt bulb, H 8
1.Remove the cover cap1 by pressing the tab
and removing the cover cap upward.
2.Turn the bulb holder to the left and remove.
3.Remove and replace the bulb.
Always wear gloves and eye protection –
the atmosphere inside the H8 bulb is
pressurized. Otherwise there is a danger of inju-
ries if the bulb is accidentally damaged during
replacement.<
Side-mounted turn signals
5-watt bulb, WY5W
1.Press against the front edge of the lamp
with the tip of your finger, then push it to the
rear, release the snap connection at the
front and take it off the trim strip.
2.Turn the bulb holder to the left by 905 and
remove.
3.Remove and replace the bulb.
Tail lamps
The roadside parking lamps, tail lamps,
brake lamps, and turn signals use LED
technology. The backup lamps are equipped
with long-life bulbs. Please contact a BMW cen-
ter in case of a malfunction.<
1Turn signal
2Roadside parking, tail and brake lamps
3Reflector
4Backup lamp

Everything from A to Z
234
Everything from A to Z
Index
A
ABS Antilock Brake
System83
– indicator lamp84
ACC, refer to Active cruise
control64
Accessories6
Accident, refer to Emergency
request216
Activated-charcoal filter for
automatic climate
control107
Activation times of parked car
ventilation, preselecting107
Active cruise control64
– indicator lamp68
– radar sensor68
– selecting distance66
– warning lamps68
Active front head restraints48
Active steering89
– warning lamp89
Adapter for spare key26
Adaptive brake assistant83
Adaptive brake lamps, refer to
Brake force display90
Adaptive Light Control99
Additional connection of
music player in mobile
phone166
Additives
– coolant205
– engine oil, refer to Approved
engine oils204
Address, entering127,133
Address for navigation
– entering127
Adjusting interior
temperature104
Adjusting the tone during
audio operation, refer to
Tone control146Adjusting thigh support46
Airbags90
– deactivating, refer to
Exception for front
passenger seat53
– indicator/warning lamp92
– indicator lamp for front
passenger airbags91
– sitting safely45
Air distribution
– automatic104
– manual105
Airing, refer to Ventilation106
Air outlets, refer to
Ventilation106
Air recirculation, refer to AUC
Automatic recirculated-air
control105
Air supply, automatic climate
control103
Air volume105
AKI, refer to Fuel
specifications195
Alarm system33
– avoiding unintentional
alarms34
– interior motion sensor33
– switching off alarm33
– switching off tilt alarm
sensor and interior motion
sensor34
– tilt alarm sensor33
Albums of music
collection163
Alloy wheels210
All-season tires, refer to
Winter tires201
Alterations, technical, refer to
For your own safety5
Antenna for mobile phone172
Antifreeze
– coolant205
– washer fluid63Antilock Brake System
ABS83
Anti-theft alarm system, refer
to Alarm system33
Anti-theft system, refer to
Central locking system27
Approved axle loads, refer to
Weights227
Approved engine oils204
Approved gross vehicle
weight, refer to Weights227
Armrest, refer to Center
armrest111
Around the center console14
Around the steering wheel10
Arrival time
– refer to Computer74
Ashtray113
Assistance systems, refer to
Driving stability control
systems83
AUC Automatic recirculated-
air control105
Audio146
– controls146
– switching on/off146
– tone control146
– volume146
Audio device, external111
Automatic
– air distribution104
– air volume104
– cruise control63,64
– headlamp control98
– steering wheel
adjustment47
Automatic car washes
– also refer to Comfort
Access35

Reference 235
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Automatic climate control103
– automatic air
distribution104
– convertible program104
– parked car ventilation/
heating107
– switching on and off106
Automatic closing of doors,
refer to Automatic soft
closing31
Automatic curb monitor51
Automatic lighting
– refer to Automatic headlamp
control98
– refer to Daytime running
lamps99
– refer to Interior lamps102
– refer to Pathway lighting99
– refer to Welcome lamps98
Automatic lights
– refer to High-beam
Assistant100
Automatic Service
Request190
Automatic soft closing31
AUTO program for automatic
climate control104
AUX-IN connection111
AUX-IN port166
Available services190
Average fuel consumption73
– setting units74
Average speed73
Avoiding highways for
navigation136
Avoiding unintentional
alarms34
Axle loads, refer to
Weights227
B
Backrest contour, refer to
Lumbar support46
Backrests, refer to Seats45
Backup lamps, replacing
bulbs, refer to Tail
lamps213Band-aids, refer to First aid
kit217
Bass, refer to Tone
control146
Battery
– jump starting217
– refer to Vehicle battery214
Battery replacement, remote
control for Comfort
Access36
BC button, refer to
Computer73
Being towed219
Belts, refer to Safety belts50
Beverage holder, refer to
Cupholders112
Blower, refer to Air
volume105
Bluetooth, activating/
deactivating174
BMW
– Car Shampoo211
BMW Assist,
activating188,190
BMW Assist186
BMW homepage4
BMW maintenance
system206
BMW Night Vision94
– activating95
– cleaning camera96
– cleaning camera, refer to
Wiper system62
– deactivating96
– making settings96
BMW Search188
BMW website4
Bottle holder, refer to
Cupholders112
Bracket for telephone or
mobile phone
– refer to Snap-in adapter182
Brake assistant83
– adaptive83
Brake force display90
Brake lamps
– replacing bulbs, refer to Tail
lamps213
– two-stage90Brake rotors
– breaking-in118
– refer to Braking safely120
Brakes
– ABS Antilock Brake
System83
– brake force display90
– breaking-in
118
– CBC Cornering Brake
Control83
– electronic brake-force
distribution83
– parking brake58
– refer to Braking safely120
Brake system118
– brake pads118
– brake rotors120
– breaking-in118
– warning lamp13,84
Braking safely120
Breakdown services, refer to
Roadside Assistance217
Breaking-in brake pads118
Breaking-in the clutch118
Breaking-in the differential,
refer to Engine and
differential118
Break-in period118
Brightness of Control
Display81
Button for starting engine,
refer to Start/Stop button56
Buttons on steering wheel11
C
California Proposition 65
Warning6
Call
– accepting175
– ending176
– rejecting176
Calling, refer to Phone
numbers, dialing176
Can holder, refer to
Cupholders112
Capacities227
Car battery, refer to Vehicle
battery214