brakes BMW 650I COUPE&CONVERTIBLE 2006 Owners Manual

Driving
60
Switching engine off
Do not remove the remote control from
the ignition lock while the vehicle is roll-
ing, otherwise the steering wheel lock would
engage while steering.
When leaving the vehicle, always take the
remote control with you.
When parking on a downhill incline, apply the
handbrake, as otherwise the vehicle could roll
away.<
Manual transmission
1.Briefly press Start/Stop button with vehicle
stopped.
2.Shift into first gear or reverse.
3.Apply handbrake.
SMG Sequential Manual
Transmission*
1.Apply handbrake.
2.Move selector lever into a drive position.
3.Briefly press Start/Stop button.
If the position N is engaged when the
engine is switched off, this is pointed out
visually and acoustically.
Automatic transmission*
1.Move selector lever into position P with
vehicle stopped.
2.Briefly press Start/Stop button.
Handbrake
The handbrake is primarily intended to prevent
the vehicle from rolling while parked; it brakes
the rear wheels.
Indicator lamp
The indicator lamp lights up, and a sig-
nal also sounds when starting off. The
handbrake is engaged.
Indicator lamp for Canadian models.
Engaging
The lever engages automatically.
Releasing
Pull slightly upwards, press the button and
lower the lever.
If exceptional circumstances should
make it necessary to engage the hand-
brake while the vehicle is in motion, do not pull it
too strongly. In doing so, continuously press the
button of the handbrake lever. Otherwise,
excessive pressure can lead to the rear wheels
locking up and loss of traction – fishtailing – at
the rear axle.<
To prevent corrosion and one-sided brak-
ing action, occasionally apply the hand-
brake lightly when the vehicle is slowly coming
to a stop if the traffic conditions are suitable.
The brake lamps do not light up when the hand-
brake is engaged.<
Manual transmission
When shifting into 5th/6th gear, press the
selector-lever toward the right, otherwise
an inadvertent shift into 3rd or 4th gear could
lead to engine damage.<

Driving
68 Especially on longer trips, the system can
reduce fatigue and tension, while increasing
your enjoyment of driving. Please use it safely
and responsibly.
In addition to holding a steady cruising speed,
if you encounter slower vehicles ahead, active
cruise control will, within the scope of given
possibilities, adjust your vehicle's speed auto-
matically so that you can flow with the traffic
without having to make constant adjustments.
If, for example, while cruising 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 between your vehicle and the
vehicle ahead. You can vary the distance, which
is also speed-dependent. Based on your
selected distance setting, the system automat-
ically decreases the throttle setting and lightly
applies the brakes if necessary. The vehicle
brake lamps will automatically illuminate to sig-
nal a following driver to take action. In addition,
it may be necessary for the vehicle or the driver
to downshift, depending on the kind of trans-
mission your vehicle is equipped with, to main-
tain the distance setting selected. If the vehicle
ahead speeds up or when the lane ahead
becomes clear, your vehicle will accelerate to
the speed you have selected by increasing the
throttle setting and shifting gears automatically
or with the aid of the driver as needed. Your
selected speed will be maintained when driving
downhill, too.
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 differ-
ently from conventional cruise control systems
which you may be accustomed to, you are
strongly urged to read all of the pages relating
to this system before use. Pay special attention
to the information contained in the Things to
know about active cruise control section begin-
ning on page71.<
Professional* navigation system
If there is a navigation DVD in the player, refer to
page124, then the system adapts the acceler-
ation and deceleration behavior of the vehicle to
the road on which you are currently driving.
To ensure that the system is informed of
the current course of the road, always use
the latest navigation DVD if possible.<
The influence exerted by the navigation system
is canceled when the vehicle position is
unknown, e.g. when it has left the mapped
region.
Brake pedal feel
>When the system brakes and you also
depress the brake pedal, a somewhat differ-
ent braking feeling results.
>Any noises produced during automatic
braking are normal.
Manual transmission
You can shift gears with the cruise control acti-
vated. If you drive for extended periods at very
high or very low engine speeds, then a shifting
command is issued or the system is deacti-
vated.
SMG
If you drive for extended periods at very high
engine speeds in Sequential mode, then a shift-
ing command is issued or the system is deacti-
vated.
In the Drive mode, the SMG acts similarly to an
automatic transmission in the D position.

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 a 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 Trac-
tion Control
>when you deactivate the DSC Dynamic Sta-
bility 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, a signal sounds: the system
cannot establish the distance, you must
apply the brakes
Flashes yellow: driving stability control sys-
tems intervene, 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
If the display ACC --- mph/km/h briefly
appears in the instrument cluster, it might Distance 1
Distance 2
Distance 3
This distance is set when the sys-
tem is used for the first time after
starting the engine.
Distance 4

Controls
71Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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 does have physical limi-
tations. It will not apply the brakes or decelerate
your vehicle when there is a slow-moving vehi-
cle, stopped vehicle or stationary object ahead
of you, as for example at a traffic light or when
approaching a parked vehicle. Also, the system

Driving
72 does not react to oncoming traffic, pedestrians
or other types of potential traffic such as a rider
on horseback. It is also possible that the system
may not detect smaller moving objects such as
motorcycles or bicycles. Be especially alert
when encountering any of these situations as
the system will neither automatically brake, nor
provide a warning to you. Also, be aware that
every decrease in the distance setting allows
your vehicle to come closer to a vehicle in front
of you and requires a heightened amount of
alertness.<
If your vehicle is actively following a vehicle in
front of you and the vehicle ahead speeds up or
the lane ahead becomes clear, then your vehi-
cle will accelerate to the speed you have
selected. Be aware that changing to a clear,
unobstructed lane will also result in your vehicle
accelerating.
Be certain to deactivate the system when
you pull into an exit lane for a highway off-
ramp.<
Also, vehicles traveling in a staggered manner
on a highway may cause a delay in the system's
reaction to a vehicle in front of you or may cause
the system to react to a vehicle actually in the
lane next to you. Always be ready to take action
or apply the brakes if necessary.
Active cruise control can only decelerate the
vehicle to approx. 20 mph/30 km/h. If the sys-
tem reduces vehicle speed below 20 mph/
30 km/h or if DSC/ABS is engaged while driving,
the system will automatically deactivate.
Remember, the system cannot stop your
vehicle. In addition, the system is deacti-
vated whenever the driver applies the vehicle
brakes, shifts into neutral, or deactivates DSC.
After any deactivation, the system will no longer
automatically activate the vehicle brakes, which
means the driver must intervene and resume
manual braking. You should then reactivate the
system only when you are fully aware of the
prior speed and distance settings.<
Active cruise control may brake when you
reduce the stored desired speed; however, the
driver must constantly monitor traffic and inter-
vene if necessary.When you switch off the engine or ignition,
active cruise control is fully switched off, too,
and any settings you have selected are can-
celed.
Swerving vehicles
When a vehicle moves from an adjacent lane
into your lane, active cruise control will not rec-
ognize this vehicle until it is fully in your lane
ahead of your vehicle.
Behavior in curves
Because of the limited range of the system, it is
possible that in curves or on the peaks and val-
leys of hilly roads, a vehicle ahead may be rec-
ognized late, or not at all. Therefore, it is up to
the driver to select a speed that is prudent in
view of the curves and terrain of the roadway.

Controls
73Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
In approaching a curve, it is possible that active
cruise control would react briefly to a vehicle in
the adjacent lane. In addition, the system can
sense if your vehicle is in a curve and may not
accelerate. If your vehicle decelerates in either
case, you can choose to overcome the deceler-
ation by briefly pressing the accelerator pedal.
Driver interventions
Anytime the driver presses down on the
accelerator pedal, any automatic braking
action by the system is interrupted until the
pedal is fully released. After doing this, release
the accelerator and the system again controls
your cruising speed and distance setting. While
driving with the system activated, resting your
foot on the accelerator pedal will cause the sys-
tem not to brake even if necessary. Be certain
that floormats or other objects on the vehicle
floor do not interfere 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.
The system cannot stop your vehicle. It uses
only a portion of braking system capacity and
does not utilize the full capacity of the vehicle
braking system. Therefore, the system cannot
decrease your speed due to large differences in
speed between your vehicle and the vehicle
ahead. Example: 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.<

Technology for comfort, convenience and safety
86 sounds. The setting is stored for the remote
control currently in use.
iDrive, for explanation of principle, 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.Change to upper field if necessary. Turn the
controller until "PDC" is selected 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.
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
page119.
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 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. 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.

Things to remember when driving
118
Things to remember when driving
Breaking-in
Moving parts need time to adjust to one
another. To ensure that your vehicle continues
to provide optimized economy of operation
throughout an extended service life, we request
that you devote careful attention to the follow-
ing section.
Engine and differential
Always obey all official speed limits.
Up to 1,200 miles/2,000 km
Drive at changing engine and driving speeds,
however do not exceed 4,500 rpm or 100 mph/
160 km/h.
Avoid full-throttle operation and use of the
transmission's kick-down mode during these
initial miles.
From 1,200 miles/2,000 km
The engine and vehicle speed can gradually be
increased.
SMG Sequential Manual Transmission
Do not use the acceleration assistant during the
break-in period, refer to page64.
Tires
Due to technical factors associated with their
manufacture, tires do not achieve their full trac-
tion potential until after an initial break-in
period. Therefore, drive reservedly during the
first 200 miles/300 km.
Brake system
Brakes require an initial break-in period of
approx. 300 miles/500 km to achieve optimized
contact and wear patterns between brake pads
and rotors. Drive in a reserved manner during
this break-in period.
Clutch
The function of the clutch is only at its opti-
mized level after a distance driven of approx.
300 miles/500 km. During this break-in period,
engage the clutch gently.
Following part replacement
Observe the break-in instructions again if com-
ponents mentioned above must be replaced
after subsequent driving operation.
General driving notes
Closing luggage compartment lid
Only drive with the luggage compartment
lid completely closed, otherwise exhaust
can penetrate into the passenger compart-
ment.<
If special circumstances should make it abso-
lutely necessary to operate the vehicle with the
luggage compartment lid open:
1.Coupe: close both windows and the glass
sunroof.
Convertible: with closed top, close all win-
dows.
2.Increase the air volume of the automatic
climate control to a high level, refer to
page106.
Hot exhaust system
As in all vehicles, extremely high temper-
atures are generated in the exhaust sys-
tem. Do not remove the heat shields installed
adjacent to it, and never apply undercoating to
them. When driving, standing at idle and while
parking, take care to avoid possible contact
between the hot exhaust system and any highly
flammable materials such as hay, leaves, grass,
etc. Such contact could lead to a fire, and with it
the risk of serious property damage as well as
personal injury.<

Things to remember when driving
120 steep downhill stretches. Even light but consis-
tent pressure on the brake pedal can lead to
high temperatures, 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 automatic transmission,
refer to page63.
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 automatic climate
control during operation, and then exits under
the vehicle. Traces of condensed water under
the vehicle are therefore normal.
Before driving into a car wash
To prevent the exterior mirrors on this vehicle
from being damaged, always fold them in by
hand before entering an automatic car wash.General information on the care and mainte-
nance of your BMW is contained in the Caring
for your vehicle brochure.
With comfort access and automatic
transmission
Insert the remote control into the ignition lock.
The engine can be switched off in the selector
lever position N. Also refer to page38.
Cargo loading
To avoid loading the tires beyond their
approved carrying capacity, never over-
load the vehicle. Overloading can lead to over-
heating and increases the rate at which damage
develops inside the tires. The ultimate result
can assume the form of a sudden blow-out.<
Determining loading limit
1.Locate the following statement on your
vehicle's placard
*:
The combined weight of occupants
and cargo should never exceed
XXX lbs. or YYY kg, otherwise the vehicle
may be damaged and unstable driving con-
ditions may result.<
2.Determine the combined weight of the
driver and passengers that will be riding in
your vehicle.
3.Subtract the combined weight of the driver
and passengers from XXX lbs. or YYY kg.
4.The resulting figure equals the available
amount of cargo and luggage load capacity.
For example, if the XXX amount equals
800 lbs. and there will be four 150-lb. pas-
sengers in your vehicle, the amount of avail-

Everything from A to Z
224 Brake pads198
– breaking-in118
Brakes
– ABS Antilock Brake
System86
– brake fluid197
– brake force display92
– brake pads198
– breaking-in118
– CBC Cornering Brake
Control86
– handbrake60
Brake system118
– brake fluid level197
– brake pads118,198
– brake rotors120
– breaking-in118
– warning lamp13,197
Brake wear warning
– brake pads198
– warning lamp198
Braking
– electronic brake-force
distribution86
– refer to Braking safely119
Braking safely119
Breakdown assistance181
Breakdown services, refer to
Roadside Assistance207
Breaking-in118
Breaking-in the clutch118
Breaking-in the
differential118
"Brightness"83,96
– with BMW Night Vision99
Brightness of Control
Display83
Button for starting engine58
Buttons on steering wheel11
Bypassing route sections140
C
California Proposition 65
Warning6
"Call"172
Call
– accepting170
– displaying accepted172
– ending171
– in absence172
– starting171
Calling
– from phone book171
– from Top 8 list172
– redialing172
Capacity of luggage
compartment217
Car care, refer to the Caring
for your vehicle brochure
Car-care products, refer to the
Caring for your vehicle
brochure
"Car Data"76
Care200
– refer to the Caring for your
vehicle brochure
Cargo loading
– securing cargo121
– stowing cargo121
– vehicle120
Caring for artificial leather,
refer to the Caring for your
vehicle brochure
Caring for leather, refer to the
Caring for your vehicle
brochure
Caring for light-alloy wheels,
refer to the Caring for your
vehicle brochure
Caring for plastic, refer to the
Caring for your vehicle
brochure
Caring for the carpet, refer to
the Caring for your vehicle
brochure
Caring for the vehicle finish,
refer to the Caring for your
vehicle brochureCar key, refer to Keys/remote
control28
Car phone166
– installation location, refer to
Center armrest112
– refer to Mobile phone166
– refer to separate operating
instructions
Car radio, refer to Radio148
Car wash120
– refer to Before driving into a
car wash120
– refer to the Caring for your
vehicle brochure
– with comfort access38
Catalytic converter, refer to
Hot exhaust system118
"Categories"155
CBC Cornering Brake
Control86
CBS Condition Based
Service199
"CD"144,157
CD changer157
– controls144
– fast forward/reverse161
– installation location
161
– playing a track159
– random play sequence160
– repeating a track160
– selecting a CD157
– selecting a track158
– switching on/off144
– tone control145
– volume145
CD player157
– controls144
– fast forward/reverse161
– playing a track159
– random play sequence160
– repeating a track160
– selecting a track158
– switching on/off144
– tone control145
– volume145
Center armrest, adjusting
height112
Center console14
"Central locking"30