2004 BMW 525I SEDAN change key battery

Opening and closing
26
Opening and closing
The key set
1Central keys with remote control. They
specify the functions of the Key Mem-
ory. In the process individual functions
of your vehicle can behave differently
depending on the key used, see further
below.
You can mark the keys with remote
control using the color-coded decals
you received on taking delivery of the
vehicle
Each central key with remote con-
trol is equipped with an extended-
life battery, which is automatically
recharged in the ignition lock each time
you drive the vehicle.
If you have any central keys with remote
control that are not used on a regular
basis, you should therefore remember
to recharge these units by using them
to drive the vehicle for an extended
period at least once a year, refer to
page 29.<
2Spare key for storage in a safe place,
such as in your wallet.
This key cannot be used to open the
locks for the luggage compartment lid
and glove compartment. This is an
advantage in a hotel, for example. The
key is not intended for constant use
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 select-
able 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 set-
tings adjusted for four different persons for
the specific keys. The only requirement is
that each person uses his or her own cen-
tral key with remote control.
Additional keys are available at your BMW
center.
When your vehicle is unlocked with the
remote control, the vehicle recognizes the
individual user by means of a data
exchange with the key, and makes adjust-
ments accordingly.
To differentiate
Color-coded decals are provided to help
you distinguish the individual central keys
with remote control with their different set-
tings.

Controls
29Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Malfunctions
External systems or devices may cause
local interference in the functions of the
remote control.
Should the remote control fail to operate
owing to interference of this kind, you can
respond by using the central key to unlock
your vehicle at one of the doors.
In the event of a system malfunction,
please contact your BMW center, which is
also your source for replacement keys.
When it is no longer possible to lock the
vehicle via the remote control, the battery is
discharged. Use this remote control during
an extended drive; this will recharge the
battery, refer to page 26.
For US owners only
The transmitter and receiver units comply
with part 15 of the FCC/Federal Communi-
cation Commission regulations. Operation
is governed 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 fol-
lowing two conditions:
>This device may not cause harmful
interference, and
>this device must accept any interfer-
ence 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 equip-
ment.<
Using the door lock
Do not lock the vehicle when persons
are inside, as the vehicle cannot be
unlocked from inside.<
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 compart-
ment lid and the fuel filler door.
Convenience operation
You also have the option of operating the
windows and the glass roof from the
driver's door lock.
>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.
Watch during the closing process to
be sure that no one is injured. Releas-
ing 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.

Reference 211
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Pathway lighting 87
"PDC" 77
PDC Park Distance
Control 76
"Phone" 152
Phone book 152
Phone numbers
Ð deleting in the phone
book 155
Ð dialing 153
Ð most recent numbers 154
Ð selecting in the phone
book 154
Ð Top-8 154
Please fasten safety belt
warning lamp 41
Portable phone
Ð accepted calls 154
Ð adjusting volume 152
Ð calling 153
Ð call termination 154
Ð controlling with the
buttons on the steering
wheel 11
Ð entering unlock code 152
Ð hands-free system 151
Ð installation location, refer
to Center armrest 98
Ð missed calls 154
Ð phone book 154
Ð redialing 154
Ð refer to separate Owner's
Manual
Ð SMS 156
Ð Top-8 154
Ð touch tone redialing 156
Portable phone, refer to
separate Owner's Manual
Portable phone battery 151
Portable phone codes 152
Portable phone in
vehicle 108
Portable phones, use in the
interior, refer to Mobile
communications in the
vehicle 108
Position
Ð displaying 115
"Presets" on the
radio 134, 138
Pressure, tires 170Pressure monitoring,
tires 80
"Profile" 165
Programming button
function 44
Programming buttons on
steering wheel 44
R
Radio
Ð adjusting the tone 131
Ð autostore 135
Ð controls 130
Ð play station 135
Ð satellite radio 138
Ð selecting the
waveband 130, 134
Ð station search 136
Ð station selection 134
Ð station with the best
reception 135
Ð store station 136
Ð switching on/off 130
Ð volume 131
Ð Weather Band 137
Radio-control key, refer to
Central key with remote
control 26
Rain sensor 57
"RandomÒ, random
sequence
generator 142, 146
Random play
Ð CD changer 146
Ð CD player 142
Reading lamps 89
Rear armrest 101
Rear center armrest 101
Rear head restraints 40
Rear lamps
Ð replacing the bulbs 186
Rear seat back, folding 101
Rear seats
Ð folding backrests 101
Ð head restraint
adjustment 40
Ð heating 41
Rear ventilation 94
Rearview mirror 42Rear window blind, refer to
Roller sun blinds 97
Rear window safety
switch 34
"Received calls" 155
Receiving level of portable
phone, refer to Status
information 18
Recent destinations 119
Recent portable phone
numbers 154
Reception
Ð quality 137
Ð radio stations 137
Ð regional
program 135
Recirculated air 91
Reclining seat, refer to
Backrest 37
Recording times, refer to
Stopwatch 73
"Redial" for portable
phone 155
Redialing with portable
phone 154
Refueling 168
"Relock door if not
opened" 30
Remaining distance 71
Remote control 26
Ð garage-door opener 96
Ð luggage compartment
lid 28
Ð malfunctions 29
"Repeat" on the
radio 142, 145
Replacement fuses 189
Replacement keys 29
Replacement of
wheels 174
Replacing bulbs, refer to
Lamps and bulbs 184
Replacing wheels/tires 174
Reporting an accident,
refer to Starting an
emergency call 190
Reporting safety defects 7
Reserve warning, refer to
Fuel gauge 66
"Reset" for stopwatch 73
Residual heat 92