2005 BMW 645CI COUPE&CONVERTIBLE spare tire

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
29Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
The following settings mentioned last are also
called up during unlocking:
>Driver's seat, exterior-mirror and steering-
wheel position, refer to page46
>The volume and tone settings for audio and
video sources, refer to page133
>The volume setting for the telephone, refer
to page151
>The display of the stored stations for the
radio, refer to page138
Central locking system
The concept
The central locking system is ready for opera-
tion whenever the driver's door is closed. This
simultaneously engages and releases the locks
on the following:
>Doors
>Compartment in the front center console
>Luggage compartment lid
>Fuel filler door
The central locking system can be operated
from the outside
>via the remote control
>via the door lock
and from inside via the button for the central
locking system.
If operated from the inside, the fuel filler door
and the compartment in the front center con-
sole are not locked, refer to page31.
The anti-theft system is automatically activated
whenever you activate the central locking sys-
tem from outside the vehicle. It prevents the
doors from being unlocked using the lock but-
tons or door handles. The alarm system is
armed/disarmed at the same time. The dome
light is also switched on and off with the remote
control.
You can find more detailed information on the
alarm system on page34.In the event of a serious accident, the central
locking system unlocks automatically. The haz-
ard warning flashers and interior lamps also
switch on.
Opening and closing: from
outside
Using the remote control
Protect the remote control against unau-
thorized use by handing over only the
spare key, for example when using hotel valet
parking.<
Because any persons or animals left unat-
tended in a parked vehicle could lock the
doors from the inside, you should always keep
the remote control with you; this precaution
ensures that you will remain able to unlock the
vehicle from the outside at all times.<
Unlocking
Use the button to unlock the vehicle
depending on the setting.
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 "Central locking" and press the con-
troller.
5.Select "Unlock button" and press the con-
troller.
6.Select a menu item:
>"All doors"
Press the button once to unlock the
entire vehicle.
>"Driver's door only"
Press the button once to unlock only
the driver's door and the fuel filler door.

Wheels and tires
172
Run-flat tires
You will recognize run-flat tires by the circular
symbol containing the letters RSC on the side-
wall.
Run-flat tires consist of self-contained tires and
special rims. The sidewall reinforcement
ensures that the tire retains some residual
safety in the event of pressure drop and driving
remains possible to a restricted degree.
New wheels and tires
Only have new wheels and tires mounted
by a BMW center or a specialized tire
dealer which works with personnel trained in
accordance with BMW specifications. If this
work is performed inexpertly, there is a danger
of damage and associated safety risks. Make
sure that the new wheels are balanced.<
Retreaded tires
BMW does not recommend the use of
retread tires, as otherwise driving safety
may be reduced. Possible variations in the
design and the age – which could be substan-
tial – of the carcasses can lead to more rapid
wear.<
The right wheels and tires
If you switch from summer to winter tires, or
vice versa, use run-flat tires, as in the event of a
flat tire there is no spare tire available. Your
BMW center will be glad to advise you.
For safety reasons, BMW recommends
that you do not have damaged run-flat
tires repaired; they should be replaced. wheel and tire combinations that BMW
has tested and approved for your particular
vehicle. Variations in factors such as manufac-
turing tolerances mean that even wheels and
tires with identical official size ratings could
actually have different dimensions than the
approved units – these differences could lead to
body contact, and with it the risk of severe acci-
dents. If non-approved wheels and tires are
used, BMW cannot evaluate their suitability,
and therefore cannot be held liable for driving
safety.<
You can find out the right wheel-tire combina-
tion from your BMW center.
The right wheel-and-tire combination is
another vital factor in ensuring reliable opera-
tion of various vehicle systems such as ABS
and DSC.
To maintain good handling and vehicle
response, use only tires of a single tread config-
uration from a single manufacturer. After a flat
tire, always remember to have the specified
wheel and tire combination remounted on the
vehicle as soon as possible.
Recommended tire brands
BMW tests certain tire brands for each tire size,
classifies them as road-safe and approves
them. Consult your BMW center for more infor-
mation. Observe any country-specific regula-
tions, e.g. on making a corresponding entry in
the vehicle documents.
The factory-mounted tires have been specially
selected to provide optimized performance
when installed on your vehicle; if properly cared
for, they will provide a combination of safety and
excellent ride comfort.
Special characteristics of winter tires
BMW recommends winter tires for use in cold
winter driving conditions. Although all-season
M+S tires provide better winter traction than
summer tires, they generally fail to provide the
same levels of cold-weather performance as
winter tires.

Mobility
173Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Run-flat tires
If you switch from summer to winter tires, or
vice versa, use run-flat tires, refer to page172,
as in the event of a flat tire there is no spare tire
available. Your BMW center will be glad to
advise you.
Watch speed
Observe the permissible maximum speed
for the respective winter tires, as other-
wise tire damage and occur and cause acci-
dents.<
Storage
Always store wheels and tires in a cool, dry
place with as little exposure to light as possible.
Always protect tires against all contact with oil,
grease and fuels. Do not exceed the maximum
tire inflation pressure indicated on the side wall
of the tire.
Snow chains*
BMW only tests certain fine-link snow chains,
classifies them as road-safe and approves
them. Consult your BMW center for more infor-
mation. BMW recommends using these
approved snow chains. These snow chains are
approved exclusively for use in pairs on the rear
wheels with the tire size:
>245/50 R 17 Y
>245/45 R 18 Y
Observe the chain manufacturer's instructions
when mounting snow chains. Do not exceed a
vehicle speed of 30 mph/50 km/h with the
chains mounted.
Do not initialize the Flat Tire Monitor after
mounting snow chains.
When you are driving with snow chains, it can
be beneficial to switch off DTC briefly, refer to
page82.<

Mobility
183Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
1.Push a screwdriver from the left under the
lamp and lever up the lamp to the right.
2.Turn the bulb holder 905 to the left and
remove.
3.Remove and replace the bulb.
LEDs Light-emitting diodes
Light-emitting diodes installed behind translu-
cent lenses serve as the light source for many of
the controls and displays in your vehicle. These
light-emitting diodes, which operate using a
concept similar to that applied in conventional
lasers, are officially designated as Class 1 light-
emitting diodes.
Do not remove the covers, and never
stare into the unfiltered light several
hours, as irritation of the retina could result.<
Changing a wheel
Your BMW is equipped with run-flat tires as
standard. An immediate wheel change in the
event of a flat tire is therefore no longer
required.
You will recognize run-flat tires by a circular
symbol containing the letters RSC on the side
of the tire, refer to Run-flat tires on page171.
If you have new tires mounted or switch from
summer to winter tires, or vice versa, use run-
flat tires, as in the event of a flat tire there is no
spare tire available. Your BMW center will be
glad to advise you.
Also refer to New wheels and tires, page172.
Car jacking points
The jacking points for the car jack are located in
the positions shown.
The suitable tools for changing tires are
available as accessories from your BMW
center.<
Vehicle battery
Battery care
The battery is 100 % maintenance-free, i.e., the
electrolyte will last for the life of the battery
when the vehicle is operated in a temperate cli-
mate.
Your BMW center will be glad to advise in all
matters concerning the battery.
Charging battery
Only charge the battery in the vehicle via the
terminals in the engine compartment with the
engine switched off. For the connections, refer
to Jump starting on page186.
Disposal
After replacement, have old batteries dis-
posed of by your BMW center or deposit
them at a recycling center. Maintain the battery
in an upright position for transport and storage.
Always secure the battery to prevent it from tip-
ping over during transport.<

Reference 211
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
SMG Sequential manual
transmission56
– acceleration assistant59
– breaking-in108
– convenience start55
– Dynamic Driving Control59
– gear display57
– kick-down57
– shiftlock57
– towing188
– tow-starting189
"SMS"155
Snow chains173
Socket103
– for Onboard Diagnostics
interface179
– in front passenger
footwell104
SOS, refer to Initiating
emergency call185
Sound output for Enter-
tainment on/off133
Spare fuses184
Spare key28
Special oils, refer to Specified
engine oils176
Specified engine oils176
Speed-dependent
volume134
Speed limit76
Speed limit warning, refer to
Speed limit76
Speedometer12
"Speed volume", refer to Tone
control134
Speed with winter tires173
Sport program
– automatic transmission with
Steptronic58
– refer to Dynamic Driving
Control59
Stability control, refer to
Driving stability control
systems81
"Star button"51
"Start" for stopwatch77
"Start guidance"117,124Starting difficulties, refer to
Special starting
conditions54
Starting engine54
Starting problems
– jump starting186
Start menu on Control
Display17
"Start route guidance"118
"Start service"161
"State / Province" for desti-
nation entry116
"State inspection"71
Station, refer to Radio136
"Status"70
Status of this Owner's Manual
at time of printing5
Steering wheel11
– adjustment50
– automatic adjustment, refer
to Easy entry/exit50
– buttons on steering
wheel11
– heating51
– memory46
– programmable buttons51
"Steering wheel buttons"51
Steering with variable ratio,
refer to Active steering85
Steptronic, refer to Automatic
transmission with
Steptronic58
"Stop" for stopwatch77
"Stopwatch"77
Stopwatch77
Storage compartments102
"Store current
destination"122
"Store current position"122
"Store in address book" for
navigation120
"Store" on the radio138,142
Storing current position120
Storing sitting position, refer
to Seat, mirror and steering
wheel memory46
Storing tires173Straps, refer to Loading111
"Street" for destination
entry117
Summer tires, refer to Wheels
and tires168
SW, waveband136
Switches, refer to Cockpit10
Switching navigation voice
instructions on/off126
Switching off engine55
Switching off the interior
motion sensor35
Switching off the tilt alarm
sensor35
Switching on
– audio132
– CD changer132
– CD player132
– radio132
Switching on hour signal78
Switching the cooling function
on and off95
Swiveling headlamps, refer to
Adaptive Head Light92
Symbols4
– indicator and warning
lamps13
T
Tachometer69
Tail lamps182
– replacing bulbs182
Tank capacity, refer to Fuel
tank capacity166
Target cursor for
navigation118
Technical changes, refer to
For your own safety6
Technical data192
Telematik, refer to
TeleService, BMW
Assist159
Telephone
– refer to Portable phone150
– refer to separate Owner's
Manual
"Telephone list"51