2005 BMW 525I 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 glove com-
partment. This is an advantage when valet
parking, for example. The key is not
intended for regular use.
New key
Additional or replacement keys are available 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.
Size 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 off, refer to page31
>Assigning the programmable function but-
tons on the steering wheel, refer to page46
>Settings for the display on the Control Dis-
play:
>Brightness of the Control Display, refer
to page73
>Measuring units for consumption, travel/
distances, temperature, and pressure,
refer to page73
>Voice commands in Control Display,
refer to page74
>12h/24h mode of the clock, refer to
page74
>Date format, refer to page75
>Showing optical warning for PDC Park
Distance Control
*, refer to page76
>Selection and brightness of display in
Head-Up Display
*, refer to page85
>Air distribution, temperature and intensity
of the automatic air conditioning system,
refer to page92
>Setting voice instructions for destination
guidance in the navigation system
*, refer to
page125

Controls
33Reference
At a glance
Driving tips
Communication
Navigation
Entertainment
Mobility
Locking separately
Turn the master key with remote control in the
lock of the luggage compartment lid beyond a
resistance point to the right and withdraw it in
the horizontal position.
This locks the luggage compartment lid and
disconnects it from the central locking system.
If you then only hand over the spare key, refer to
page28, no access is possible via the luggage
compartment lid. This is an advantage when
valet parking, for example.
Unlocking again and opening manually
Turn master key toward the left until the resis-
tance point: the luggage compartment lid
opens.
If you use the key to unlock the luggage
compartment lid while the alarm system
is armed, the alarm will be triggered. You should
therefore unlock the vehicle ahead of time.
If the alarm is inadvertently triggered: switch off
the alarm, refer to page34.<
Emergency release
This lever releases the luggage compartment
lid from inside the luggage compartment.
Closing
The handle recesses on the interior trim of the
luggage compartment lid make it easier to pull
down.
Make sure that the closing path of the
luggage compartment lid is clear, as oth-
erwise injuries may result.<
Alarm system
The concept
The vehicle alarm system responds:
>When a door, the hood, or the luggage com-
partment lid is opened
>To movements inside the vehicle: Inner
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. 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.

Everything from A to Z
204 Braking
– CBC Cornering Brake
Control77
– DBC Dynamic Brake
Control77
– electronic brake-force
distribution77
– refer to Braking safely107
Breakdown assistance163
Breakdown services, refer to
Roadside Assistance190
Breaking-in the clutch106
Breaking-in the
differential106
Break-in period106
"Brightness"73
Brightness of Control
Display73
Buttons on steering wheel11
C
California Proposition 65
Warning6
"Call"155
Call
– accepting154
– displaying accepted156
– ending155
– in absence156
– starting154
Calling
– from phone book155
– from Top 8 list156
– redialing156
– refer to telephone Owner's
Manual
"Calling sender"158
Can holder, refer to Cup
holders99
Capacities198
Car battery, refer to Vehicle
battery187
Car care, refer to Caring for
your vehicle brochure
Car-care products, refer to
Caring for your vehicle
brochure"Car data"70
Care181
– refer to Caring for your
vehicle brochure
Cargo, securing102,109
Cargo loading108
Caring for artificial leather,
refer to Caring for your
vehicle brochure
Caring for leather, refer to
Caring for your vehicle
brochure
Caring for light-alloy wheels,
refer to Caring for your
vehicle brochure
Caring for plastic, refer to
Caring for your vehicle
brochure
Caring for the carpet, refer to
Caring for your vehicle
brochure
Caring for the vehicle finish,
refer to Caring for your
vehicle brochure
Car jack
– jacking points186
Car keys, refer to Key set28
Car phone153
– installation location, refer to
Center armrest98
– refer to Portable phone152
– refer to separate Owner's
Manual
Car radio, refer to Radio138
Car vacuum cleaner
connection, refer to
Sockets100
Car wash108
– also refer to Caring for your
vehicle brochure
Catalytic converter, refer to
Hot exhaust system106
"Categories"143
CBC Cornering Brake
Control77
CBS Condition Based
Service180
"CD"133,145CD changer145
– controls132
– fast forward/reverse147
– installation location147
– playing a track147
– random order147
– repeating a track146
– selecting a CD146
– selecting a track146
– switching on/off132
– tone control133
– volume133
CD player145
– controls132
– fast forward/reverse147
– playing a track147
– random order147
– repeating a track146
– selecting a track146
– switching on/off132
– tone control133
– volume133
Center armrest
– front98
– rear100
Center brake lamp184
Center console14
"Central locking"29
Central locking system29
– from inside vehicle31
Changes, technical
– refer to For your own
safety6
– refer to Parts and
accessories6
Changing gear
– automatic transmission with
Steptronic55
Changing settings
– on Control Display73
Changing the language on the
Control Display74
Changing the measurement
units on the Control
Display73
Changing wheels174,185
CHECK button69
Check Control67