2004 BMW 645CI COUPE tow

Opening and closing
32 If special circumstances should make it
absolutely necessary to operate the vehicle
with the lid open:
1.Coupe: close both windows as well as
the glass roof
Convertible: with closed top, close all
windows
2.Adjust the automatic climate control to
supply a high air volume, refer to
page 89.
Luggage compartment
There are four lashing eyes on the inner
corners of the luggage compartment for
securing luggage nets or securing straps to
fix luggage in position.
Also refer to Cargo loading, page 104.
Convertible: increasing luggage
compartment capacity
With the convertible top closed, you can
enlarge the luggage compartment capac-
ity:
To do so, unfold the handle and press it
downwards in the direction of travel, refer
to arrow. This folds the convertible top
compartment floor upwards.
Before opening the convertible top, run this
procedure in reverse order.
The convertible top cannot be
opened if the convertible top com-
partment floor is folded up.<
Alarm system
The concept
The vehicle alarm system responds:
>When a door, the hood, or the luggage
compartment lid is opened
>To movement in the vehicle interior:
interior motion sensor
>To changing of the vehicle's tilt if some-
one attempts to steal the wheels or tow
the vehicle
>To interruption of battery voltage.
The system responds to unauthorized vehi-
cle entry and attempted theft by simulta-
neously activating:
>An acoustic alarm, which lasts for a
period of approx. 30 seconds
>The hazard warning flashers for approx.
5 minutes
>The high beams, which flash on and off
in the same rhythm.
Arming and disarming alarm system
When you lock or unlock the vehicle, either
with the remote control or at the door lock,
the alarm system is armed or disarmed at
the same time.
The system indicates that it has been cor-
rectly armed by switching on the hazard
warning flashers for a single cycle and by
emitting an acoustic signal.
You can also open the luggage compart-
ment lid with the system armed using but-
ton on the remote control, refer to
page 28. When you close the lid, it is
secured again.
Switching off alarm
>Unlock the vehicle using the remote
control, refer to page 27
>or turn the ignition key to position 1.

Controls
33Reference
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Driving tips
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Mobility
Indicator lamp displays
>The indicator lamp below the interior
rearview mirror flashes continuously:
the system is armed
>The indicator lamp flashes on locking:
door(s) or luggage compartment lid are
not completely closed. Even if you do
not close the alerted area, the system
begins to monitor the remaining areas,
and the indicator lamp flashes continu-
ously after approx.10 seconds. How-
ever, the interior motion sensor is not
activated
>The indicator lamp goes out on unlock-
ing: no manipulation or attempted intru-
sions have been detected in the period
since the system was armed
>The indicator lamp flashes on unlocking
before the remote control is inserted in
the ignition lock, but for no more than
roughly 5 minutes: an attempted entry
has been detected in the period since
the system was armed.
Following triggering of an alarm, the indica-
tor lamp will flash continuously.
Tilt alarm sensor and interior motion
sensor
Tilt alarm sensor
Monitors the inclination of the vehicle. The
alarm system reacts, for example, if some-
one attempts to steal the wheels or tow the
vehicle.
Interior motion sensor
Coupe:
In order for the interior motion sensor to
function properly, the windows and glass
roof must be completely closed.
Convertible:
Monitors the interior up to the height of the
seat cushions. This means that the alarm
system, including the interior motion sen-
sor, is armed even if the convertible top is
open. Falling objects, e.g. leaves, can trig-
ger false alarms, refer to Avoiding uninten-
tional alarms.
Avoiding unintentional alarms
The tilt alarm sensor and interior motion
sensor may be switched off at the same
time. This is how you prevent unintentional
alarms, e.g. in the following situations:
>In garages with elevator ramps
>During transport on automobile trans-
port trains
>If animals are to remain in the vehicle.
Switching off tilt alarm sensor and
interior motion sensor
Press the button on the remote con-
trol once again directly after locking.
The indicator lamp lights up briefly and
then flashes continuously. The tilt alarm
sensor and the interior motion sensor are
switched off until the vehicle is unlocked
and locked again.
Windows
To prevent injuries, exercise care
when closing the windows and keep
them in your field of vision until they are
shut.
When leaving the vehicle, always remove
the ignition key and close the doors to pre-
vent children from operating the windows
and injuring themselves etc.<

Opening and closing
36
Raising and closing glass roof
Ignition key as of position 1:
>Briefly press the switch for raising the
roof:
The roof opens and the sliding panel
moves back approx. 2 in/5 cm
>Press the switch twice beyond the
resistance point toward the rear:
The roof opens and the sliding panel
moves completely back
>To close, briefly press the switch or
push it twice beyond the resistance
point toward the front:
The roof and sliding panel close.
Opening and closing sliding panel
Ignition key as of position 1:
>Push the switch up to the resistance
point in the desired direction:
The sliding panel continues to move as
long as you continue to hold the switch
>Push the switch beyond the resistance
point in the desired direction:
The sliding panel moves automatically.
Briefly press the switch again in any
direction to stop the movement.
After switching off ignition
You can still operate the roof:
>Ignition key in position 1 for approx.
15 minutes
>In position 0 or with the ignition key
removed for approx. 1 minute, as long
as a door has not been opened.
For information on using the convenience
operation mode at the door lock or with the
remote control, refer to page 27 or 29.
Anti-trapping mechanism
If the glass roof encounters resistance
when closing from the raised position, the
closing action is interrupted and the glass
roof opens.
If the sliding panel encounters resistance
when closing within approx. 8 in/20 cm, the
closing action is interrupted and the sliding
panel opens approx. 8 in/20 cm.
Despite the anti-trapping mechanism,
you should always inspect the roof's
travel range prior to closing it, as the safety
feature might fail to detect certain kinds of
obstructions, such as very thin objects, and
the roof would continue closing.
The anti-trapping mechanism for closing
the glass roof is deactivated if the switch is
pressed beyond the resistance point and
held there. The closing action is immedi-
ately interrupted when you release the
switch.<
Following interruptions in electrical
power supply
After disconnecting the battery, it can
occur that the glass roof does not move.
The system has to be initialized. Should
this occur, please have the roof initialized
at your BMW center.
Manual operation
In the event of an electrical malfunction,
you can operate the panorama glass roof
and the sliding panel manually.
Glass roof
1.Remove cover on headliner in front of
rear window. To do this, first detach the
cover at the rear on both sides and then
disengage by pulling downward firmly
2.Insert the Allen wrench supplied with
the onboard tool kit in the opening pro-
vided, refer to arrow.

Opening and closing
40 2.Hold the convertible top at each side
frame, arrow 3, with both hands
Lifting the convertible top at parts
other than the side frame can
damage it.<
3.Both persons lift on both sides simulta-
neously, arrows 4, and swing the top
forwards. In doing so, keep the convert-
ible top compartment lid open, arrow 5,
e.g. with your shoulder
4.Raise the two convertible top ends as
far as they will go, arrow 6, and close
the convertible top compartment lid,
arrow 7
Do not raise the convertible top
ends until after the convertible top
has been swung forward, as otherwise
damage can occur.<
5.Fold the convertible top ends down-
wards onto the convertible top com-
partment lid
6.From the interior, take out the cover in
the center of the front top frame; use
the screwdriver if necessary
7.Insert the Allen wrench in the appropri-
ate opening8.From the outside, both persons pull the
front convertible top frame downwards
and on both sides simultaneously as far
as possible
9.Turn the Allen wrench in the direction of
the arrow until the front convertible top
frame locks with the windshield frame.
The rear convertible top ends are
pressed automatically onto the convert-
ible top compartment 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, this
enabling pleasant driving even at higher
speeds. You can conveniently stow it in the
luggage compartment when it is not
needed.
Before fitting
1.Take the wind deflector from the pro-
tective sleeve
2.Unfold the wind deflector
3.Press together the locking mechanism
on the left side until it snaps into place

Controls
43Reference
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Driving tips
Communications
Navigation
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Mobility
Seats
Note before adjusting
Never attempt to adjust your seat
while operating the vehicle. The seat
could respond with unexpected move-
ment, and the ensuing loss of vehicle con-
trol could lead to an accident.
On the front passenger side as well, do not
tilt the backrest too far toward the rear
while driving. Failure to observe this pre-
caution can prevent the belt from providing
effective protection against injury, as the
passenger could slide under the belt in an
accident.
Make sure that the footwell behind the
driver's and front passenger's seat is empty
and unobstructed. If you fail to do so, any
persons or objects behind the seat could
be injured or damaged by a rearward
movement of the seat.<
Also observe the instructions regarding
damage to the safety belt on page 47.
Convertible: with the wind deflector
fitted, do not incline the front seat
backrests too far backwards if the seat is to
be moved back to the end position, as oth-
erwise the wind deflector will be dam-
aged.<
Seat adjustment
To ensure that the safety systems
continue to provide optimized protec-
tion, please observe the adjustment
instructions above.<
1Inclination
2Longitudinal direction
3Height4Backrest
5Convertible: head restraints, refer to
page 45
With the sports seat
*, you can also adjust
the thigh support manually:
Pull the lever and move the thigh support in
a longitudinal direction.
Lumbar support* adjustment
You can also adjust the contours of the
backrest to obtain additional support in the
lumbar region.
The upper hips and spinal column receive
supplementary support to help you main-
tain a relaxed, upright sitting position.
>Press the switch forwards or back-
wards: increase or decrease curvature
>Press the switch up or down: shift cur-
vature at top or bottom.

Controls
57Reference
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Mobility
>One-touch function for Sequential
mode
+: manual upshifts
—: manual downshifts
>D: Drive mode.
N is automatically engaged if the
driver's door is opened with the
engine running and neither pedals, shift
paddles nor the selector lever are oper-
ated.
This is indicated by an acoustic signal and
the flashing display N in the instrument
cluster.<
Gear display
R N 1 to 6
The currently engaged gear is displayed, in
the Drive mode preceded by a D.
Shiftlock
Press the brake pedal before shifting out
of N; the shift command will not be exe-
cuted unless the brake is applied.
R Reverse
Select only when the vehicle is completely
stationary.
Sequential mode
After every engine start, as soon as the
selector lever is pushed to the right and the
brake pedal is pressed, the Sequential
mode is activated.
The gear is changed using the shift paddles
or selector lever.
Driving off is also possible in second gear,
e.g. when the roadway is icy.
D Drive mode
In the Drive mode, all forward gears are
shifted automatically.
To switch from Sequential to Drive mode:
Briefly press the selector lever to the right
towards D.
Kickdown:
For rapid acceleration, e.g. overtaking,
press the accelerator pedal as far down as
it will go: you achieve maximum accelera-
tion.
To switch back to the Sequential mode:
briefly press the selector lever back to the
right towards D or change the current gear
using the shift paddles or selector lever.
Start off quickly on slopes. Do not
hold the vehicle on a hill by applying
the throttle, but engage the handbrake
instead. Otherwise overheating can occur
in the area of the transmission.<
Gear changes
Using selector lever
>To shift up, briefly press the selector
lever towards +
>To shift down, briefly press towards —.
Using shift paddles on steering
wheel
>To shift up, pull one of the shift paddles
>To shift down, press.
In the following situations, the SMG in the
Sequential mode assists you:
>Upshifts and downshifts are executed
only when they will result in a plausible
combination of engine and vehicle

Driving
58 speed; thus, for example, a downshift
that would cause the engine to overrev
will not be executed by the system
>When the vehicle is stationary, the
transmission automatically downshifts
into first gear
>Shortly before dropping below a gear-
dependent minimum speed, the trans-
mission downshifts automatically even
without your intervention.
Malfunction
The warning lamp lights up and a
message appears on the Control
Display. There is a malfunction in
the transmission system. Avoid high loads.
While it will remain still possible to move
the selector lever to any desired position,
the transmission will revert to operation in
its default mode with only a limited number
of forward gears.
Have the system checked as soon as pos-
sible.
Information on jump-starting and towing
begins on page 185.
Overheating
The warning lamp lights up and a
message appears on the Control
Display. In addition, an acoustic
signal sounds. Overheating in the area of
the transmission. If possible, stop or drive
off quickly so that the system can cool
down.
Automatic transmission
with Steptronic*
In addition to the fully automatic mode, you
can also shift manually with Steptronic,
refer to page 59.
Selector-lever positions
P R N D M/S + –
Possible displays
P R N D DS M1 to M6
The selector lever position is indicated, and
in the manual mode the gear currently
engaged.
Changing selector-lever positions
An interlock prevents inadvertent gear-
shifts into selector-lever positions R and P.
To cancel the interlock, press the button on
the front of the selector lever knob, refer to
arrow.
Shiftlock
Press the brake pedal before shifting out
of P or N; the shift command will not be
executed unless the brake is applied.
To prevent the vehicle from creeping after
you select a driving position, maintain pres-
sure on the brake pedal until you are ready
to start.
To prevent the vehicle from rolling,
always select selector-lever posi-
tion P and engage the handbrake before
leaving the vehicle with the engine running.
Never leave an unattended vehicle with the
engine running, as such a vehicle repre-
sents a potential safety hazard.<

Controls
59Reference
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Driving tips
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Mobility
P Parking
Select only when the vehicle is completely
stationary. The rear wheels are blocked.
R Reverse
Select only when the vehicle is completely
stationary.
N Neutral
E.g. engage in car washes. The vehicle can
roll.
D Drive, automatic position
Position for normal vehicle operation.
All forward gears are available.
Under normal operating conditions, fuel
consumption is lowest when driving in
position D.
Kickdown
The kickdown mode provides maximum
acceleration:
Press the accelerator pedal beyond the
full-throttle resistance point.
M/S manual operation and
Sport program
Move the selector lever from position D to
the left into gearshift gate M/S:
The sport program is activated and DS
appears in the instrument cluster.
This position is recommended for a perfor-
mance-oriented driving style. It is engaged
automatically when the Dynamic Driving
Control is activated, see below.
When the selector lever is moved slightly
towards + or –, the Steptronic shifts gear
and manual operation is activated. The
instrument cluster shows M1 through M6.Upshifts and downshifts are executed only
when they will result in a plausible combi-
nation of engine and vehicle speed; thus,
for example, a downshift that would cause
the engine to overrev will not be executed
by the system. The selected gear appears
briefly in the instrument cluster, followed by
the current gear.
To use the automatic function again, move
the selector lever to the right into posi-
tion D.
Malfunction
The warning lamp lights up and a
message appears on the Control
Display. There is a malfunction in
the transmission system. Avoid heavy
loads.
While it will remain still possible to move
the selector lever to any desired position,
the transmission will revert to operation in
its default mode with only a limited number
of forward gears.
Have the system checked as soon as pos-
sible.
Towing, refer to page, 185, jump-starting,
refer to page 185.
Dynamic Driving Control
The Dynamic Driving Control makes it pos-
sible for your BMW to react in an even more
sports-oriented manner at the push of a
button:
>The engine responds more spontane-
ously to accelerator pedal movements
>The steering conveys a feeling of even
better contact with the road surface
>Cruise control:
The stored speed you call up is reached
more quickly.
Additionally with SMG:
>Gearshifts are faster
>The engine speed range is used opti-
mally in the Drive mode.
With automatic transmission:
>The Sport program is activated.