2005 BMW 645CI CONVERTIBLE open convertible top

Opening and closing
40 dren away from the travel path of the convert-
ible top.
For safety reasons, only operate the convertible
top when the vehicle is at a standstill.<
If you have initiated top operation with the
vehicle at a stop and then start to drive,
e.g. at a traffic light, you can continue the ini-
tiated operation up to a speed of 20 mph/
30 km/h:
To do so, press and hold the corresponding
button.<
Partial vacuums that occur at higher
speeds in the passenger compartment
can make the convertible top flap. Use the auto-
matic climate control to increase the air supply
so that a partial vacuum in the vehicle does not
occur.<
Prior to opening and closing
>Read carefully and comply with the safety
precautions that appear above.
>Ensure that the convertible top compart-
ment floor in the luggage compartment is
folded down, refer to page34, as otherwise
the convertible top cannot be opened.
>Ensure that the luggage compartment lid is
closed.
Opening and closing
With the ignition key in position 1 or greater,
refer to page54, and the vehicle stationary:
So as not to place an excessive load on
the battery, only operate the convertible
top with the engine running, if possible.
Before closing the convertible top, remove for-
eign bodies from the windshield frame, as these
might inhibit closing of the convertible top.<1Closing
2LED
3Opening
When the button for top operation is
pressed, the side windows move down-
ward slightly; the rear window is lowered com-
pletely.
If you hold down the button after the LED2
goes out, the windows are raised again.
If the opening or closing action is not com-
pleted, the luggage compartment lid cannot be
opened.<
LED
In the following situations, in addition to the
LED, a message is displayed on the Control
Display and an acoustic signal may sound:
>During convertible top operation, the LED
lights up green. It goes out as soon as the
opening or closing action is ended.
> If the LED flashes red when you release the
button, the opening or closing action has
not yet finished.
>If the LED lights up red when the button is
pressed, either the floor of the convertible
top storage compartment in the luggage
compartment is in the raised position or a
malfunction has occurred. The convertible
top cannot be moved.
Interruption
The automatic sequence of movements is
interrupted immediately if the button for top
operation is released. The sequence can be
continued in the desired direction using the
button.
If the opening or closing action is interrupted for
a longer period, the convertible top remains in
that position for approx. 15 minutes before it
slowly moves to a stable position.
A convertible top which is not completely
opened or closed presents a danger.
Do not interrupt and continue the closing action
several times in succession, as otherwise the
top mechanism can be damaged.<

Controls
41Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
If the opening or closing action is not
completed, the luggage compartment lid
cannot be opened.<
Convenience operation with the
remote control and via the door lock
Refer to pages30 and31.
Manual closing in the event of an
electrical malfunction
Only close the convertible top manually if
absolutely necessary; never open it man-
ually. The convertible top compartment lid can-
not be locked in the event of an electrical mal-
function and would open while the vehicle is
being driven.
Improper handling can lead to damage.<
Before closing
1.Open the luggage compartment lid.
2.Take the Allen wrench and the screwdriver
from the on-board tool kit, refer to
page180.
3.Lever out the two buttons in the luggage
compartment with the screwdriver and then
pull firmly. The convertible top compart-
ment lid is unlocked.
4.Close the luggage compartment lid.
During manual convertible top opera-
tion, the luggage compartment lid
cannot be opened.<
5.Completely open the side windows and the
rear window.
If the rear window cannot be opened using
the switch, it must be lowered manually.
Opening rear window manually
1.Lever out the cover between the rear head
restraints. To do so, place the screwdriver
as close as possible to the lock elements, as
shown in the illustration.
2.Insert the Allen wrench as far as possible in
the opening and turn firmly in the direction
indicated by the arrow until the rear window
is completely open.
Closing
Perform the following work steps with the
assistance of a second person and with
the doors open to prevent injury and damage to
the convertible top.<
1.Push the cover 1 on the left and right of the
side panel forward. Reach into the resulting
openings and raise the convertible top
compartment lid2 as far as it will go.

Opening and closing
42 2.Grasp the top with both hands at the left and
right side frame, arrow3.
Lifting the convertible top at parts
other than the side frame can damage
it.<
3.Both persons lift on both sides simulta-
neously and swing the top forward. In doing
so, keep the convertible top compartment
lid open, arrow4, e.g. with your shoulder.
4.Raise the two convertible top ends as far as
they will go, arrow5, and close the convert-
ible top-compartment lid, arrow6.
Do not raise the convertible top ends
until after the convertible top has
been swung forward, as otherwise damage
can occur.<
5.Fold down the top ends onto the convert-
ible-top compartment lid.6.From the interior, take out the cover in the
center of the front top frame; use a screw-
driver if necessary.
7.Insert the Allen wrench into the opening
provided.
8.From the outside, both persons pull the
front frame of the convertible top down-
ward, as simultaneously as possible on the
two sides.
9.Turn the Allen wrench in the direction of the
arrow until the front convertible top frame
locks to the windshield frame.
The rear convertible top ends are pressed
automatically onto the convertible top com-
partment lid and close tightly with tension.
10.If necessary, close the rear window again
manually in the same way as above.
Wind deflector*
The wind deflector keeps the air movement in
the passenger compartment at a low level when
the convertible top is open, thus enabling
pleasant driving even at higher speeds. You can
conveniently stow it in the luggage compart-
ment when it is not needed.

Controls
97Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
To select the front passenger area:
Move the controller to the right.
Pressing the AUTO button raises and
lowers the air distribution settings on the
Control Display.<
Adapting temperature in upper body
region
1.Select "Vent settings" and press the con-
troller.
2.Select the field by moving the controller and
adjust the air distribution by turning the
controller.
Setting intensity of AUTO program
To meet your individual needs, you can weaken
or strengthen the intensity of the automatic cli-
mate control.
1.Select "Automatic programs" and press the
controller.
2.Select the desired intensity and press the
controller.
Convertible program
When the convertible top is opened, the con-
vertible program can also be selected. In the
convertible program, the automatic climate control is optimized for driving with the convert-
ible top open. In addition, the air supply is
increased as the speed increases.
If the convertible program has been selected, it
is automatically active every time the top is
opened.
The effect of the convertible program can
be greatly enhanced if the wind deflector
is installed.<
Ventilation
1Serrated dial for smoothly opening and
closing air vents
2Lever for changing the airflow direction
Do not drop any foreign bodies into the
vent outlets, as otherwise these could be
catapulted outwards and lead to injuries.<
Ventilation for cooling
Adjust the vent outlets to direct the flow of cool
air in your direction, for instance, if the interior
has become too warm, etc.
Draft-free ventilation
Set the vent outlets so that the air flows past
you and is not directed straight at you.
Microfilter/activated-charcoal filter
The microfilter removes dust and pollen from
the incoming air. The activated-charcoal filter
provides additional protection by filtering gas-
eous pollutants from the outside air. Your BMW
center replaces this combined filter as a stan-
dard part of your scheduled maintenance.
You can have more detailed information shown
on the Control Display, refer to page70.

Things to remember when driving
108
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
Up to 1,200 miles/2,000 km:
You should attempt to vary both vehicle and
engine speeds. Until the break-in period has
been completed, you should also refrain from
exceeding an engine speed of 4,500 rpm or a
driving speed of 100 mph/160 km/h.
Always obey all official speed limits.
Avoid full-throttle operation and use of the
transmission's kick-down mode during these
initial miles.
Once you have driven 1,200 miles/2,000 km,
the engine and vehicle speeds can be gradually
increased.
SMG Sequential manual transmission
Do not use the acceleration assistant during the
break-in period, refer to page59.
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.
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.
After component replacement
You should also comply with these break-in
procedures should the components mentioned
above need to be replaced at a later point.
General driving notes
Close the luggage compartment lid
Operate the vehicle only when the lug-
gage compartment lid is completely
closed. Otherwise, exhaust fumes could pene-
trate to the interior of the vehicle.<
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.Adjust the automatic climate control to sup-
ply a high air volume, refer to page95.
Hot exhaust system
As in all vehicles equipped with a catalytic
converter, extremely high temperatures
are generated in this vehicle. Do not remove the
heat shields installed adjacent to various sec-
tions of the exhaust system, and never apply
undercoating to them. When driving, standing
at idle and while parking, take care to avoid pos-
sible 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 dam-
age as well as personal injury.<

Everything from A to Z
202 Cold start, refer to Starting
engine54
"Communication"152
"Communication
settings"159
Compact disc
– refer to CD changer143
– refer to CD player143
Computer74
– clock, 12h/24h clock
mode78
– displays on Control
Display74
– hour signal78
"Concert hall"135
Condition Based Service
CBS178
"Confirmation"30
Confirmation signals for
locking and unlocking30
Connecting a vacuum cleaner,
refer to Socket103
Consumption display, refer to
Average fuel
consumption74
"Continue guidance to
destination?"125
Control Center16
– adjusting brightness77
– assistance window20
– automatic climate control96
– changing settings19,77
– changing the menu page19
– changing time and date78
– confirming selection or
entry19
– controller16
– display, menus16
– language selection78
– menu item selection19
– menu navigation17
– operating elements16
– selecting units of
measurement and display
format77
– start menu17
– status information20
– symbols17
Control Display16Controller, refer to Control
Center16
Controls, refer to Cockpit10
Convenience operation
– convertible top30,31
– glass sunroof30,31
– windows30,31
Convenience start, refer to
Starting engine54,55
Convertible
– convertible program for
automatic climate control97
– opening and closing
windows36
– rollover protection
system87
– top39
– wind deflector42
Convertible top
– care, refer to the Caring for
your vehicle brochure
– convenience operation31
– emergency closing41
– manual closing in the event
of an electrical
malfunction41
– opening and closing40
Coolant176
– level176
Cooling, maximum95
Cornering Brake Control
CBC81
Country of destination for
navigation116
Courtesy lighting93
Cruise control61
– active cruise control62
Cruising range74
Cup holders103
Curb weight, refer to
Weights192
"Current position"125
Current position
– displaying125
– entering120
– storing120
"Customer Relations"162
Cylinders, refer to Engine
data192
D
Dashboard, refer to
Cockpit10
Dashboard lighting, refer to
Instrument lighting93
Data192
– capacities195
– dimensions193
– engine192
– weights192
"Date"79
Date69
– setting78
"Date format"79
Daytime driving lamps91
DBC Dynamic Brake
Control81
– malfunction83
– warning lamp83
"Deactivated"47
Deactivating front passenger
airbag, Coupe52
Decommissioning the vehicle,
refer to the Caring for your
vehicle brochure
Deep water, refer to Driving
through water109
Defrosting windows95
Defrosting windows and
removing condensation95
Defrosting windshield, refer to
Defrosting windows95
Defrost position, refer to
Defrosting windows95
"Delete address book" for
navigation121
"Delete all numbers" on the
portable phone155
"Delete data" for
navigation121
"Delete" for portable
phone154
Destination address
– deleting121
– entering115

Reference 209
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Pressure monitoring of tires,
refer to Flat Tire Monitor84
Programmable buttons on
steering wheel51
Protective function, refer to
Anti-trapping mechanism
– glass sunroof38
– windows37
R
Radio
– Autostore138
– controls132
– playing stations137
– satellite radio140
– selecting frequency
manually137
– selecting
waveband132,136
– station search137
– station selection136
– station with best
reception138
– storing stations138
– switching on/off132
– tone control133
– volume133
– Weather Band139
Radio-control key, refer to
Master key with remote
control28
Rain sensor of the windshield
washer system61
"Random", random play
sequence145
Random play sequence
– CD changer145
– CD player145
Reading lamps93
Rear lamps, refer to Tail
lamps182
Rearview mirror49
Rear window defroster94
"Received calls"154
Receiving level of portable
phone, refer to Status
information20Reception
– quality139
– radio stations139
– regional station138
Rechargeable flashlight101
Recirculated-air mode, refer
to AUC Automatic recircu-
lated-air control95
Recirculation of air, refer to
AUC Automatic recircu-
lated-air control95
Reclining seat, refer to
Backrest45
Recording times, refer to
Stopwatch77
"Redial" for portable
phone154
Redialing with portable
phone153
Refueling166
Releasing hood174
"Relock door if not
opened"32
Remaining distance
– refer to Computer75
– refer to Cruising range74
Remote control28
– garage-door opener100
– luggage compartment lid30
– malfunction30
Removing condensation from
windows95
"Repeat" in audio mode145
Replacement fuses184
Replacement key, refer to
New keys28
Replacing bulbs, refer to
Lamps and bulbs180
Replacing tires
– changing a wheel183
– new wheels and tires172
Reporting an accident, refer to
Initiating emergency
call185
Reporting safety defects7
Reserve warning, refer to Fuel
gage70
"Reset" for stopwatch77
"Reset" in audio mode135Residual heat mode96
Restraint systems
– for children52
– refer to Safety belts48
Retreaded tires172
Reverse, fast
– CD changer145
– CD player145
Reverse gear
– automatic transmission with
Steptronic58
– manual transmission56
– SMG Sequential manual
transmission57
Road map127
"Roadside Assistance"161
Roadside Assistance186
Roadside parking lamps92
– replacing bulbs182
Rollover protection system on
convertible87
– lowering87
Rope, refer to Towing and
tow-starting188
Rotary pushbutton, refer to
Control Center16
Route122
– bypassing sections128
– changing122,128
– display127
– displaying arrow view127
– displaying map127
– displaying towns/cities and
streets127
– list127
– selecting122
– selecting criteria122
"Route list" for navigation127
Route map127
"Route preference",
changing122
Route selection122
Run-flat tires172
– continuing driving with a
damaged tire85
– flat tire85
– tire inflation pressure168
– tire replacement172
– winter tires173