2005 BMW 645CI COUPE&CONVERTIBLE ECO mode

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Service and warranty
We recommend that you read this publication
thoroughly.
Your BMW is covered by the following warran-
ties:
>New Vehicle Limited Warranty
>Rust Perforation Limited Warranty
>Federal Emissions System Defect Warranty
>Federal Emissions Performance Warranty
>California Emission Control System Limited
Warranty
Detailed information about these warranties is
listed in the Service and Warranty Information
Booklet for US models or in the Warranty and
Service Guide Booklet for Canadian models.
Reporting safety defects
The following applies only to vehicles owned
and operated in the US.
If you believe that your vehicle has a defect
which could cause a crash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration
(NHTSA) in addition to notifying BMW of North
America, LLC, P.O. Box 1227, Westwood, New
Jersey 07675-1227, Telephone (800) 831-
1117.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a safety
defect exists in a group of vehicles, it may order
a recall and remedy campaign. However,
NHTSA cannot become involved in individual
problems between you, your dealer, or BMW of
North America, LLC.
To contact NHTSA, you may either call the Auto
Safety Hotline toll-free at 1-800-424-9393 (or
366-0123 in Washington, D.C. area) or write to:
NHTSA, U.S. Department of Transportation,
Washington, D.C. 20590. You can also obtain
other information about motor vehicle safety
from the Hotline.

Opening and closing
28
Opening and closing
The key set
1Every master key with remote control con-
tains an extended-life battery as a power
supply, which is charged automatically in
the ignition lock as you drive. You should
use each master key at least twice a year in
order to maintain the charge condition.
Depending on which master key is detected
by the vehicle during unlocking, different
settings in the vehicle are requested and
executed, refer to Key Memory below.
2Spare key for storage in a safe place, such
as in your wallet.
This key does not fit in the locks of the lug-
gage compartment lid and the hotel func-
tion, refer to page32. This is an advantage
when valet parking at a hotel, for example.
The key is not intended for constant use.
New keys
New, additional or replacement keys are avail-
able at your BMW center.
Key Memory
How the system functions
Doubtless you have often reflected on how
great it would be if you could configure your
vehicle's various adjustment settings to meet
your own personal requirements. BMW has
designed several freely selectable options into
the vehicle during its development. You can set
these as desired via the Control Center.You can have up to four different basic settings
adjusted for four different persons for the spe-
cific keys. The only requirement is that each
person uses his or her own master key with
remote control.
When your vehicle is unlocked with the remote
control, the vehicle recognizes the individual
key by means of a data exchange and makes
adjustments accordingly.
Scope of Key Memory
>When unlocking with the remote control,
either unlock only the driver's door or the
entire vehicle, refer to page29.
>Locking the vehicle after a short time or
after starting to drive, refer to page31
>Assigning the programmable function but-
tons on the steering wheel, refer to page51.
>Settings for the display on the Control Dis-
play:
>Brightness of the Control Display, refer
to page77
>Units of measure for consumption,
route/distances, temperature and pres-
sure, refer to page77
>Language on the Control Display, refer
to page78
>12h/24h clock mode, refer to page78
>Date format, refer to page79.
>Displaying optical warning for the PDC Park
Distance Control
*, refer to page80.
>Selection and brightness of the display for
the Head-Up Display
*, refer to page89.
>Air distribution, temperature and intensity
for the automatic climate control, refer to
page96.
>Setting the language information for the
destination guidance of the navigation sys-
tem
*, refer to page126.

Opening and closing
30 Press the button twice to unlock the
entire vehicle.
7.Press the controller.
The setting is stored for the remote control cur-
rently in use.
Convenience opening mode
Hold the button down:
>Coupe: the windows are opened, the glass
sunroof
* is raised, and the sliding panel
moves back approx. 2 in/5 cm.
>Convertible: the windows and the convert-
ible top are opened.
Watch the convertible top during the
opening process to be sure that no
one is injured. Releasing the button stops
the operation.<
Locking the doors
Press the button.
Switching on the interior lamps
Press the button if the vehicle is locked.
You can also use this function to locate your
vehicle in parking garages etc.
Panic mode*
By pressing and holding the button for more
than approx. 2 seconds, you can trigger the
alarm system in response to any impending
danger.
To switch off the alarm: press any of the but-
tons.
Opening luggage compartment lid
Press the button.
The luggage compartment lid opens, regard-
less of whether it was previously locked or
unlocked.
A previously locked luggage compart-
ment lid is also locked after closing.
Coupe: the luggage compartment lid swings to
the rear and upward when opened. Make sure
there is sufficient free space.<
Setting confirmation signals
You can set confirmation signals to acknowl-
edge the locking and unlocking of the vehicle.
Control Center, for principle details, refer to
page16.
1.Open the menu.
2.Select "Vehicle settings" and press the
controller.
3.Select "Door locks" and press the control-
ler.
4.Select "Confirmation" and press the con-
troller.
5.Select the desired signal.
6.Press the controller.
The signals are switched on.
Malfunctions
Local radio waves can disrupt the function of
the remote control.
Should the remote control fail to operate owing
to interference of this kind, you can respond by
using the master key to unlock your vehicle at
one of the doors.
If it is no longer poss ible to lock the vehicle with
a remote control, its battery is discharged. Use

Controls
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Rear window
Ignition key in position 1 or greater, refer to
page54:
1.Briefly press button1:
The LEDs in button 1 and switch 2 light up.
2.Press switch 2:
>Up to the resistance point:
The rear window continues to open for
as long as you hold the switch.
You can close the rear window in the
same manner by pulling the switch.
>Briefly press the switch beyond the
resistance point:
The rear window opens automatically.
Briefly press the switch again to stop the
opening movement.
Briefly press button 1 again to deactivate the
function. The LEDs go out.
The rear window opens and closes auto-
matically when you open or close the con-
vertible top.<
After switching off ignition
You can still operate the windows:
>for approx. 15 minutes when the ignition
key is in position 1.
>for approx. 1 minute when the ignition key is
in position 0 or has been removed; but in the
convertible, only for as long as a door has
not been opened.
For information on using the convenience oper-
ation mode at the door lock or with the remote
control, refer to page30 or31.
Anti-trapping mechanism
If the closing force rises beyond a predefined
threshold during closing, the system will imme-
diately stop moving the window prior to lower-
ing it slightly.
Convertible: the back windows and rear
window are not equipped with an anti-
trapping mechanism.<
Despite the anti-trapping mechanism,
you should inspect the travel path of the
front side window prior to closing it, as the
safety feature could fail to detect certain kinds
of obstructions, such as very thin objects, and
the window would continue closing.
Pulling the switch beyond the resistance point
and holding it limits the response of the anti-
trapping mechanism. Under these conditions,
the window will respond to forces beyond a
defined threshold by only opening a few inches/
millimeters.
If you pull the switch past the resistance point
again within approx. 4 seconds and hold it there,
the anti-trapping mechanism will be deacti-
vated.<
Accessories in window area
After installing any accessory – such as a
clamp-on antenna for a portable phone – within
the window's travel range, you will need to have
the system reinitialized for use under the new
conditions. Please contact your BMW center for
assistance.
Coupe:
Glass sunroof, electric
with raise function*
To prevent injuries, exercise care when
closing the glass sunroof and keep it in
your field of vision until it is shut.
When leaving the vehicle, always remove the
key and close the doors, as otherwise children
could operate the sunroof and injure them-
selves.<

Driving
54
Driving
Ignition lock
0 Steering locked
The key can only be inserted or removed in this
position.
After removing the key, turn the steering wheel
slightly until it locks.
Interlock on automatic transmission*
>Only move the selector lever from
position P with the engine running.
>To turn the key back to position 0 or to
remove it, first select the selector lever
position P.
1 Steering unlocked
A slight steering wheel movement often makes
it easier to turn the key from 0 to 1.
Some vehicle systems are ready for operation.
2 Ignition switched on
All vehicle systems are ready for operation.
3 Start engine
Starting engine
Do not run the engine in closed rooms, as
otherwise the inhaling of toxic exhaust
gases can cause unconsciousness and death.
The exhaust gases contain carbon monoxide,
an odorless and colorless, but highly toxic gas.
Never leave an unattended vehicle with the engine running, as such a vehicle represents a
potential safety hazard.
To prevent the vehicle from rolling, always
select neutral position or position N and apply
the handbrake before leaving the vehicle with
the engine running.<
When starting the engine, do not press the
accelerator pedal.
Do not allow the engine to warm up by leaving it
running while the vehicle remains stationary.
Instead, begin to drive immediately at a moder-
ate engine speed.
Special starting conditions
Press the accelerator pedal halfway down when
starting if
>the engine fails to start on the first attempt,
for instance, if it is very hot or cold
>the engine is started at very low tempera-
tures, below approx. + 57/– 156, at high
altitudes, above 3,300 ft/1,000 m
Avoid frequent starting in quick succes-
sion or repeated start attempts in which
the engine does not start. Otherwise, the fuel is
not burned or inadequately burned and there is
a danger of overheating and damaging the cat-
alytic converter.<
Manual transmission
1.Apply the handbrake.
2.Gearshift lever in neutral position.
3.Press the clutch pedal.
If the clutch pedal is not depressed,
the engine will not start.<
4.Start the engine.
Do not terminate the starting operation too
early, but after approx. 20 seconds at the
latest. When the engine starts, release the
ignition key immediately.

Controls
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Gear display
R N 1 to 6
The currently engaged gear is displayed pre-
ceded by a D in Drive mode.
Shiftlock
Press the brake pedal before shifting out of N;
the shift command will not be executed unless
the brake is applied.
R Reverse
Select only when the vehicle is 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.
You can shift up and down using the shifting
paddles or the selector lever. You do not need
to remove your foot from the accelerator to do
so.
It is also possible to start off in second gear, e.g.
in slippery conditions.
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
toward D.
Kick-down:
For rapid acceleration, e.g. passing, press the
accelerator pedal as far down as it will go: you
achieve maximum acceleration.To switch back to the Sequential mode: press
selector lever to the right again toward D or shift
using the shifting paddles or the selector lever.
Start off quickly on slopes. Do not hold
the vehicle on a hill by applying the throt-
tle, but engage the handbrake instead. Other-
wise overheating can occur in the transmission
region.<
Gear changes
Using selector lever
>To upshift, pull the selector lever back.
>To downshift, push the selector lever for-
ward.
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 res ult in a plausible combina-
tion of engine and vehicle 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 trans-
mission automatically downshifts into first
gear.
>Shortly before dropping below a gear-
dependent minimum speed, the transmis-
sion downshifts automatically even without
your intervention.

Controls
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recommended for a performance-oriented driv-
ing style. It is engaged automatically when the
Dynamic Driving Control is activated, see
below.
When the selector lever is briefly moved for-
ward or back, the manual mode is activated and
the Steptronic shifts gear. The instrument clus-
ter shows M1 through M6.
Upshifts and downshifts are executed only
when they will result in a plausible combination
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 position D.
Dynamic Driving Control
The Dynamic Driving Control makes it possible
for your BMW to react in an even more perfor-
mance-oriented manner at the push of a button:
>The engine responds more spontaneously
to accelerator pedal movements.
>Cruise control:
The stored speed is reached more quickly
when it is requested.
Additionally with SMG:
>Gearshifts are faster.
>The engine speed range is used optimally in
the Drive mode.
With automatic transmission:
>The Sport program is activated.
Activating system
In ignition key position 2, press the SPORT but-
ton.
The LED in the button lights up and SPORT is
displayed in the instrument cluster.
Deactivating system
>Press the SPORT button again or
>engage reverse gear or
>switch off the engine.
The LED in the button and SPORT in the instru-
ment cluster go out.
Acceleration assistant with SMG
The acceleration assistant enables optimized
vehicle acceleration at racing car level on road
surfaces with good adhesion when starting off.
Do not use the acceleration assistant too
often, as otherwise components will wear
prematurely.<
1.Activate the Dynamic Driving Control.
2.Press the DTC button, refer to page82, for
longer than three seconds.
3.Press the accelerator pedal down fully:
Kick-down. The ideal starting-off engine
speed is set.
To maintain driving stability, do not deac-
tivate DSC if at all possible.<

Controls
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cially 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 one 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. There are four settings for dis-
tance, which are additionally speed-dependent.
Based on your selected distance setting, the
system automatically decreases the throttle
setting and lightly applies the brakes if neces-
sary. The vehicle brake lamps will automatically
illuminate to signal 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 transmission your vehicle is
equipped with, to maintain the distance setting
selected. If the vehicle ahead speeds up or
when the lane ahead becomes clear, your vehi-
cle will accelerate to the speed you have
selected by increasing the throttle setting and
shifting gears automatically or by the driver as
needed.
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 in this
manual beginning on page66. You can use the system in the 2nd to 6th gear
within a normal engine speed range and also
change gears. Continuous operation at very
high or very low engine speeds is not possible.
In this case the driver is asked to shift or the
system deactivates itself.
Vehicles with SMG
Continuous operation at very high engine
speeds is not possible in the Sequential mode.
In this case the driver is asked to shift or the
system deactivates itself.
In the Drive mode the SMG acts similarly to the
automatic transmission in the D position.
Operating active cruise control
1Activate system, store and increase desired
speed
2Activate system, store and decrease
desired speed
3Deactivate system
4Recall the stored speed and distance or
increase desired speed by 1 mph/1 km/h
with each press of the button
5Select distance to vehicle driving ahead.
You can choose from four available distance
settings. You will find more detailed infor-
mation on page65.
Adjust your desired speed to the traffic
conditions and remain ready to brake at
all times. Great differences in speed to the vehi-
cles driving ahead, e. g. when quickly approach-
ing a truck or when another vehicle swerves into
your lane, cannot be compensated for by the
system.<