2005 BMW 645CI COUPE&CONVERTIBLE change key battery

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.

Controls
31Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
this remote control during an extended drive;
this will recharge the battery, refer to page28.
For US owners only
The transmitter and receiver units comply with
part 15 of the FCC/Federal Communication
Commission regulations. Operation is gov-
erned by the following:
FCC ID:
LX8766S
LX8766E
LX8CAS
Compliance statement:
This device complies with part 15 of the FCC
Rules. Operation is subject to the following two
conditions:
>This device may not cause harmful interfer-
ence, and
>this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modifications or
changes to these devices could void the
user's authority to operate this equipment.<
Using door lock
One turn of the key in the driver's door lock
unlocks the driver's door only.
Turning the key a second time unlocks all of the
remaining doors, the luggage compartment lid
and the fuel filler door.
Convenience operation
You can also use the door lock to operate the
windows and the glass sunroof
* in the Coupe
or to operate the windows and the top in the
convertible.>To open:
With the door closed, turn the key to the
Unlock position and hold it there.
>To close:
With the door closed, turn the key to the
Lock position and hold it there.
Keep a close eye on the closing process
and also on the opening process of the
convertible top to be sure that no one is injured.
Releasing the key stops the operation.<
Manual operation
In the event of an electrical malfunction, you can
turn the key all the way to the right or left in the
door lock to lock or unlock the driver's door.
Opening and closing: from
inside
This button serves to unlock or lock doors and
the luggage compartment lid, but does not acti-
vate the anti-theft system. The fuel filler door
remains unlocked.
You can also make the following settings:
>The central locking system automatically
locks the vehicle after a short time when no
door has been opened.
>The central locking system automatically
locks the vehicle as soon as you start to
drive.
Control Center, for principle details, refer to
page16.
1.Open the menu.
2.Select "Vehicle settings" and press the
controller.

Opening and closing
34 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
page95.
Luggage compartment
There are four lashing eyes on the inner corners
of the luggage compartment for securing lug-
gage nets
* or securing straps to fix luggage in
position.
Also refer to Securing cargo, page111.
Convertible: increasing luggage
compartment capacity
With the convertible top closed, you can
enlarge the luggage compartment capacity:
To do so, unfold the handle and press it down-
ward in the direction of travel, refer to arrow.
This folds the convertible top compartment
floor upward.
Before opening the convertible top, execute
this procedure in reverse order.
The convertible top cannot be opened if
the convertible top compartment floor is
folded up.<
Alarm system
The concept
The vehicle alarm system responds:
>To the opening of doors, the hood, or the
luggage compartment lid
>To movements in the vehicle interior: inte-
rior motion sensor, see below
>To changes in the vehicle's tilt if someone
attempts to steal the wheels or tow the
vehicle
>To interruptions in battery voltage
The system responds to unauthorized vehicle
entry and attempted theft by simultaneously
activating:
>An acoustic alarm, which lasts for a period
of approx. 30 seconds
>The hazard warning flashers for approx.
5minutes
>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 correctly
armed by switching on the hazard warning
flashers for a single cycle and by emitting an
acoustic signal.
You can also open the luggage compartment lid
with the system armed using the button on
the remote control, refer to page30. When the
luggage compartment lid is closed, it is locked
again and monitored.
Switching off alarm
>Unlock the vehicle using the remote control,
refer to page29,
>or turn the ignition key to position 1, refer to
page54.

Reference 201
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
C
California law
– Event Data Recorders179
California Proposition 65
Warning6
"Call"153
Call
– accepting152
– display accepted153
– ending152
– in absence153
– starting152
Calling
– from phone book153
– from the Top 8 list153
– redialing153
"Call sender"156
Can holder, refer to Cup
holders103
Capacities195
Capacity of the luggage
compartment192
Car battery, refer to Vehicle
battery183
Car care, refer to the Caring
for your vehicle brochure
Car-care products, refer to the
Caring for your vehicle
brochure
"Car data"74
Care, refer to the Caring for
your vehicle brochure
Cargo loading
– securing cargo111
– stowing cargo111
– vehicle110
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
brochureCaring for the carpet, refer to
the Caring for your vehicle
brochure
Caring for the vehicle finish,
refer to the Caring for your
vehicle brochure
Car keys, refer to Key set28
Car phone151
– installation location, refer to
Center armrest102
– refer to Portable phone150
– refer to separate Owner's
Manual
Car radio, refer to Radio136
Car wash110
– also refer to the Caring for
your vehicle brochure
– refer to Before driving into a
car wash110
Catalytic converter, refer to
Hot exhaust system108
"Categories"141
CBC Cornering Brake
Control81
CBS Condition Based
Service178
"CD"133,143
CD changer143
– controls132
– fast forward/reverse145
– installation location145
– playing a track145
– random play sequence145
– repeating a track144
– selecting a CD144
– selecting a track144
– switching on/off132
– tone control133
– volume133
CD player143
– controls132
– fast forward/reverse145
– playing a track145
– random play sequence145
– repeating a track144
– selecting a track144
– switching on/off132
– tone control133
– volume133Center armrest
– adjusting the height102
– front102
Center console14
"Central locking"29
Central locking system29
– from inside vehicle31
Changes, technical, refer to
For your own safety6
Changing a wheel183
Changing gear
– automatic transmission with
Steptronic58
Changing language on
Control Display78
Changing measurement units
on Control Display77
Changing wheels183
CHECK button73
Check Control71
"Check Control
messages"73
Check Gas Cap166
Checking the air pressure,
refer to Tire inflation
pressure168
Child's seats, refer to Child-
restraint systems52
Child-restraint fixing system
LATCH53
Child restraints52
Child-restraint systems52
Chrome parts, care, refer to
the Caring for your vehicle
brochure
Cigarette lighter103
Cleaning, refer to the Caring
for your vehicle brochure
Cleaning the windshield, refer
to Wiper system61
"Climate"96
Clock69
– 12h/24h mode78
– setting time and date78
Closing
– from inside31
– from outside29
Clothes hooks, Coupe102
Cockpit10

Everything from A to Z
208 New keys28
"New route"128
New wheels and tires172
"Next entertainment
source"51
Nozzles
– refer to Ventilation94
– refer to Windshield washer
nozzles61
Nylon rope, refer to Towing
and tow-starting188
O
OBD Socket179
Octane ratings, refer to Fuel
specifications167
Odometer69
Oil
– additives176
– capacity195
– dipstick175
– specified engine oils176
Oil change intervals
– refer to Service
requirements70
– refer to the Service and
Warranty Information
Booklet for US models or to
the Warranty and Service
Guide Booklet for Canadian
models178
Oil consumption175
Oil level175
Old batteries, refer to
Disposal183
"On a new destination" for
navigation119
Onboard computer, refer to
Control Center16
"Onboard information"75
Onboard tool kit180
"On destination"119
"On location"119
Opening and closing
– from inside31
– from outside29
– using door lock31
– using the remote control29Opening and closing rear
window37
Operation by voice
commands for portable
phone156
– adjusting volume157
– canceling156
– correcting phone
number157
– dialing a phone number157
– making a call157
– redialing158
– voice commands156
– voice phone book157
"Options"162
"Options" for portable
phone156
Orientation menu, refer to
Start menu17
Output, refer to Engine
data192
Outside air, refer to AUC
Automatic recirculated-air
control95
Outside mirror
– tilting the passenger-side
mirror47
Outside temperature
display69
– changing unit of
measurement77
P
Panic mode30
Park Distance Control PDC80
"Parked car operation"98
Parking aid, refer to PDC Park
Distance Control80
Parking brake, refer to
Handbrake55
Parking lamps/low beams91
– replacing bulbs180
Parking vehicle55
Parts and accessories, refer to
Your individual vehicle5
Passenger-side mirror tilt
function47"Pathway lighting"91
Pathway lighting91
"PDC"81
PDC Park Distance Control80
Phone book151
Phone numbers
– deleting in the phone
book154
– dialing152
– most recent numbers153
– selecting in the phone
book153
– Top 8153
"Play" on the radio141
Pollen, refer to Microfilter/
activated-charcoal filter97
Portable phone
– accepted calls153
– adjusting volume151
– calling152
– call termination152
– hands-free system151,157
– missed calls153
– operation using Control
Center151
– phone book153
– redialing153
– refer also to separate
Owner's Manual
– SMS155
– Top 8153
– touch tone dialing155
Portable phone battery150
Portable phones, use in
vehicle, refer to Mobile
communication devices in
vehicle109
Position
– displaying125
– storing120
Power failure184
Power windows, refer to
Windows36
"Presets" on the
radio136,141
Presetting independent venti-
lation activation times98
Pressure, tires168