2008 BMW 4.8I spare tire

Technology for comfort, convenience and safety
96 A message like this is displayed in the following
situations:
>In case of a malfunction:
Have the system checked
>If a wheel without TPM electronics is
mounted, e.g. a compact wheel
*
>If TPM is temporarily interfered with by
other systems or devices which use the
same radio frequency
Explanation according to the NHTSA/
FMVSS 138 Tire Pressure Monitoring
Systems
Each tire, including the spare*, should be
checked monthly when cold and inflated to the
inflation pressure recommended by the vehicle
manufacturer on the vehicle placard or tire infla-
tion pressure label. If your vehicle has tires of a
different size than the size indicated on the
vehicle placard or tire inflation pressure label,
you should determine the proper tire inflation
pressure for those tires. As an added safety fea-
ture, your vehicle has been equipped with a tire
pressure monitoring system, TPMS, that illumi-
nates a low tire pressure telltale when one or
more of your tires are significantly under-
inflated. Accordingly, when the low tire pres-
sure telltale illuminates, you should stop and
check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a signif-
icantly underinflated tire causes the tire to over-
heat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life,
and may affect the vehicle's handling and stop-
ping ability. Please note that the TPMS is not a
substitute for proper tire maintenance, and it is
the driver's responsibility to maintain correct
tire pressure, even if under-inflation has not
reached the level to trigger illumination of the
TPMS low tire pressure telltale.
The TPMS malfunction indicator is combined
with the low tire pressure telltale. When the sys-
tem detects a malfunction, the telltale will flash
for approximately one minute and then remain
continuously illuminated. This sequence will
continue upon subsequent vehicle startups as
long as the malfunction exists. When the mal-function indicator is illuminated, the system
may not be able to detect or signal low tire pres-
sure as intended. TPMS malfunctions may
occur for a variety of reasons, including the
installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly. Always check the
TPMS malfunction telltale after replacing one or
more tires or wheels on your vehicle to ensure
that the replacement or alternate tires and
wheels allow the TPMS to continue to function
properly.Active steering*
The concept
The active steering actively varies the steering
angle of the front wheels in relation to the steer-
ing wheel movements. In addition, it also varies
the steering force required for steering depend-
ing on the vehicle's speed.
When you are driving in the low road speed
range, e. g. in a town or when parking, the steer-
ing angle increases, i.e. the steering becomes
very direct. In the higher speed range, on the
other hand, the steering angle is reduced more
and more. This improves the handling capability
of your BMW over the entire speed range.
In critical situations, the system can make tar-
geted corrections to the steering angle pro-
vided by the driver and thus stabilize the vehicle
before the driver intervenes.
Malfunction
The warning lamp lights up yellow
and a message is shown on the Con-
trol Display. The active steering is no
longer operational. At low speeds,
greater steering wheel movements are
required, whereas at higher speeds, the vehicle
reacts more sensitively to steering wheel move-
ments. The stability-promoting intervention
can also be deactivated. Proceed cautiously
and drive defensively. Have the system
checked.

Mobility
251Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Changing wheels
Your BMW is equipped with run-flat tires as
standard. As a result, it is not necessary to
change the wheel immediately in the case of air
loss in the event of a breakdown.
To continue driving with a damaged tire:
>With Flat Tire Monitor, refer to Indication of
a flat tire page93
>With Tire Pressure Monitor, refer to Mes-
sage with low tire inflation pressure page95
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, page239.
When mounting new tires, or changing from
summer to winter tires or vice versa, use run-flat
tires for your own safety. No spare tire is avail-
able in case of a flat tire. Your BMW Sports
Activity Vehicle Center will be happy to advise
you. Also refer to New wheels and tires,
page239.
Suitable tools for changing tires are avail-
able as accessories at your BMW Sports
Activity Vehicle Center.<
Jacking points for vehicle jack
The jacking points for the vehicle jack are
located in the positions shown.
Compact wheel*
Safety precautions in the event of a flat
tire or wheel change: park the vehicle as
far as possible from passing traffic and on solid
ground. Switch on the hazard warning flashers.
Set the parking brake and engage transmission
position P.
Have all vehicle occupants get out of the vehicle and ensure that they remain outside the imme-
diate area in a safe place, such as behind a
guardrail.
If a warning triangle
* or portable hazard warning
lamp
* is r e q u ir e d , s et i t up o n t h e ro a d s id e a t a n
appropriate distance from the rear of the vehi-
cle. Comply with all safety guidelines and regu-
lations.
Change the wheel only on a level, firm surface
which is not slippery. The vehicle or the jack
could slip to the side if you attempt to raise the
vehicle on a soft or slippery surface such as
snow, ice, tiles, etc.
Position the jack on a firm support surface.
Do not use a wooden block or similar object as a
support base for the jack, as this would prevent
it from extending to its full support height and
reduce its load-carrying capacity.
To avoid serious or fatal injury: never lie under
the vehicle, and never start the engine while it is
supported by the jack.<
What you will need
To avoid rattling noises later on, note the posi-
tions of the tools before removing them, then
return them to their initial positions after com-
pleting work.
The tools are located in the mount under the
floor panel flap.
1Vehicle jack
*
2Vehicle jack crank*
3Lug wrench*

Mobility
253Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
3.Check and correct the tire inflation pressure
at the earliest opportunity.
Protect valve stems with valve screw
caps against dirt and contamination.
Dirt in valve stems is a frequent source of
gradual air loss.<
4.Initialize the Flat Tire Monitor, refer to
page92, or reset the Tire Pressure Monitor,
refer to page94.
5.Replace the damaged tire as soon as possi-
ble and have the new wheel/tire balanced.
Driving with compact wheel
Drive reservedly and do not exceed a speed of
50 mph/80 km/h.
The driving characteristics change, for example
reduced track stability on braking, extended
braking distance, and altered self-steering
characteristics in the limit range. In conjunction
with winter tires, these characteristics are more
pronounced.
Only one compact wheel may be
mounted. Restore the wheels and tires to
their original size as quickly as possible. Failure
to do so is a safety risk.<
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 Sports Activity Vehicle 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. Connections, refer to
Jump starting on page256.
Disposal
Have old batteries disposed of following
replacement at your BMW Sports Activity
Vehicle Center or bring them to a collection
point. Maintain the battery in an upright position
for transport and storage. Always restrain the
battery to prevent it from tipping over during
transport.<
Power failure
After a temporary power loss, the functioning of
some equipment may be limited and require
reinitialization. Individual settings are also lost
and must be updated:
>Seat, mirror and steering wheel memory
The positions must be stored again, refer to
page44.
>Time and Date
The values must be updated, refer to
pages81, 82.
>Radio
Stations must be stored again if necessary,
refer to page168.
>Navigation system
Wait until the system starts, refer to
page159.
Fuses
Never attempt to repair a blown fuse and
do not replace a defective fuse with a sub-
stitute of another color or amperage rating, as
this could lead to a circuit overload, ultimately
resulting in a fire in the vehicle.<
Spare fuses, a pair of plastic tweezers and infor-
mation on the fuse assignment are located near
the fuses in the cargo bay.

Everything from A to Z
284 "Service Request"218,225
"Service
requirements"76,225,243
Service requirements75
– also refer to CBS Condition
Based Service245
"Set date"82
"Set" on trip computer74
"Set service date"77
"Set time"81
"Settings"229
– for unlocking30
Settings
– changing on Control
Display81
– clock, 12h/24h mode82
– configuring, refer to
Personal Profile28
Setting speed limit80
Setting time, refer to
Preselecting activation
times114
"SET" with rear
entertainment183,195
Shifting, automatic
transmission with
Steptronic65
Short commands of voice
command system265
Shortest route in navigation,
refer to Selecting route148
"Short route" for
navigation148
Shoulder support44
"Show current position"143
"Show destination
position"143
Shuffled, refer to Random
– CD changer178
– CD player178
Side airbags97
Side marker lamps, replacing
bulbs248
Signal horn, refer to Horn10
Sitting safely42
– with airbags42
– with head restraint42
– with safety belts42
Ski bag125Slide show, refer to Displaying
images200
Sliding/tilt sunroof, refer to
Panorama glass sunroof39
Slope assistant, refer to
Starting assistant91
Smokers' package, refer to
Ashtray120
Snow chains240
Socket for Onboard
Diagnostics interface246
Socket for remote control,
refer to Ignition lock59
Sockets, refer to Connecting
electrical devices121
Soft closure aid, refer to
Automatic soft closing33
Song search, refer to
Sampling tracks177
SOS, refer to Initiating an
emergency request255
Spare fuses253
Spare remote control28
Spare wheel
– refer to Changing
wheels251
– refer to Compact wheel251
Special oils, refer to Approved
engine oils243
Specified oil grades, refer to
Approved engine oils243
Speed
– with compact wheel253
– with winter tires240
Speed-dependent
volume164
Speed limit warning, refer to
Speed limit80
Speedometer12
"Speed volume", refer to Tone
control164
Sport program, automatic
transmission with
Steptronic65
Stability control, refer to
Driving stability control
systems88
"Standard" for DVD system in
rear197,204"Star button"54
Star button53
Start/Stop button59
"Start" for stopwatch80
"Start guidance"141
Starting, refer to Starting
engine60
Starting assistance, refer to
Jump starting256
Starting assistant91
Starting difficulties, jump
starting256
Starting off on slopes, refer to
Starting assistant91
Start menu, iDrive17
"Start service"224
"Start Service" with
BMW Assist226
"State / Province" for
destination entry139
"State inspection"77
Station, refer to Radio
166
"Status"77
Status of this Owner's Manual
at time of printing5
Steering wheel
– adjusting52
– automatic adjustment, refer
to Steering wheel
memory44
– buttons on steering
wheel11
– easy entry/exit53
– heating53
– memory44
– programmable buttons53
"Steering wheel buttons"53
Steering with variable ratio,
refer to Active steering96
Steptronic, refer to Sport
program and manual mode
M/S65
"Stop" for stopwatch80
"Stopwatch"80
Stopwatch80
Storage compartments119
"Store"
– on the radio168
– with satellite radio174