tires BMW 4.8I 2008 Owner's Guide

Wheels and tires
240
Wheels with electronics for
TPM Tire Pressure Monitor
When mounting new tires or changing from
summer to winter tires or vice versa, only use
wheels with TPM electronics, otherwise the
Tire Pressure Monitor cannot detect a flat tire,
refer to page94. Your BMW Sports Activity
Vehicle Center will be happy to advise you on
this subject.
Recommended tire brands
Certain tire makes are recommended by BMW
depending on the tire size. You can recognize
these from the clearly visible BMW marking on
the tire sidewall.
When used properly, these tires comply with
the most demanding standards for safety and
vehicle response.
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.
Paying attention to speed
Always observe the maximum permissi-
ble speed for the winter tires, otherwise
tire damage may occur, which can result in acci-
dents.<
Storage
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.
Rotating wheels between axles
BMW does not recommend moving the front
wheels to the rear or vice versa, as otherwise
the handling characteristics may be impaired.
Snow chains*
BMW only tests certain fine-link snow chains,
classifies them as road-safe and recommends
them. Your BMW Sports Activity Vehicle Center
can provide you with this information.
Use is only permissible in pairs on the rear
wheels.
Observe the manufacturer's instructions when
mounting snow chains. Do not exceed a speed
of 30 mph/50 km/h with the chains mounted.
After mounting snow chains, do not ini-
tialize the Flat Tire Monitor
*, as otherwise
incorrect displays can occur.
When you are driving with snow chains, it can
be beneficial to activate DTC briefly, refer to
page89.<

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.

Reference 263
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Dimensions
All dimensions given in inches/mm.
Smallest turning circle diam.: 42,0 ft/12.8 m
With mixed tires
* the vehicle width may exceed the specified dimension.

Everything from A to Z
270
Everything from A to Z
Index
"..." Identifies Control Display
texts used to select
individual functions, and
indicates where to find them
in the text.
A
ABS Antilock Brake
System88
Accessories6
Access to 3rd row seats48
Acoustic signal, refer to Check
Control78
Activated-charcoal filter111
"Activation time" for parked
car ventilation114
Active seat51
Active seat ventilation50
Active steering96
– warning lamp96
Adaptive brake lamps, refer to
Brake force display97
Adaptive Drive91
Adaptive fastening
system124
Adaptive Head Light104
"Add digits" for mobile
phone216
"Address book" for navigation
system146
Address for navigation
– deleting147
– entering139,146
– selecting147
– storing146
– storing current position146
"Add to destination
list"141,143
Adjusting confirmation signals
for locking and unlocking31Adjusting temperature with
expanded-scope automatic
climate control108
Adjusting the tone during
audio operation, refer to
Tone control163
Adjusting thigh
support43,44
"After door opened"45
"After unlocking"45
Airbags97
– sitting safely42
– warning lamp99
Air circulation, refer to Air
recirculation109
Air distribution
– automatic107,112
– manual108
Airing, refer to Ventilation110
Air recirculation
– AUC Automatic
recirculated-air control109
– recirculated-air mode109
"Air recirculation on / off"
53
Air vents106
– refer to Ventilation110
Air vents of automatic climate
control106
Air volume108,112
AKI, refer to Fuel
specifications233
Alarm system35
– avoiding unintentional
alarms36
– interior motion sensor36
– switching off alarm35
– switching off tilt alarm
sensor and interior motion
sensor36
– tilt alarm sensor36
"All channels", with satellite
radio173
"All doors"30All-season tires, refer to
Winter tires240
"All stations", displaying with
radio166
All-wheel drive, refer to
xDrive90
Alterations, technical, refer to
For your own safety5
"AM", reception
range163,166
"Angle of view" for DVD
system in rear185,197
Antenna for mobile phone208
Antifreeze
– coolant244
– washer fluid68
Antilock Brake System
ABS88
Anti-theft system
– refer to Alarm system35
– refer to Central locking
system29
Approved axle loads, refer to
Weights264
Approved engine oils243
Approved gross vehicle
weight, refer to Weights264
Armrest, refer to Center
armrest119
Around the center console14
Around the steering wheel10
Arrival time
– refer to Computer73
– refer to Starting destination
guidance150
"Arrow display" for navigation
system151
Arrow view for navigation
system151
Ashtray
– front120
– rear121

Reference 273
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Catalytic converter, refer to
Hot exhaust system129
"Categories", with satellite
radio173
CBC Cornering Brake
Control88
CBS Condition Based
Service245
"CD"163,175
– for DVD system in rear194
CD, refer to Playing audio
tracks, DVD system in
rear198
CD/DVD player, DVD system
in rear193
CD changer175
– compressed audio files175
– controls162
– fast forward/reverse178
– random sequence178
– repeating a track177
– sampling tracks177
– selecting a CD175
– selecting a track176
– switching on/off162
– tone control163
– volume163
CD player175
– compressed audio files175
– controls162
– fast forward/reverse178
– random sequence178
– repeating a track177
– sampling tracks177
– selecting a track176
– switching on/off162
– tone control163
– volume163
Cell phone, refer to Mobile
phone
Center armrest119
Center brake lamp250
Center console14
"Central locking"30
Central locking system29
– comfort access36
– from inside vehicle32Changes, technical
– refer to For your own
safety5
– refer to Parts and
accessories6
Changing language on
Control Display83
Changing tires239
Changing units of measure on
Control Display
82
Changing wheels251
Check Control78
"Check Control
messages"79
Checking the air pressure,
refer to Tire inflation
pressure234
Children, transporting55
Child restraint fixing system
LATCH56
Child restraint systems55
Child-safety locks58
Child seats55
Chime, refer to Check
Control78
Chrome parts, care, refer to
Caring for your vehicle
brochure
Cigarette lighter, refer to
Lighter121
Cleaning, refer to Caring for
your vehicle brochure
"Climate"50
Clock71
– 12h/24h mode82
– setting time81
Closing
– from inside32
– using remote control29
Closing fuel filler cap232
Clothes hooks119
Cockpit10
Cold start, refer to Starting
engine60
"Color" for DVD system in
rear196
Comfort access36
– observe in car wash37
– replacing battery38Comfort area, refer to Around
the center console14
Comfort start, refer to Starting
engine60
"Communi-
cation"214,224,225,226
Compact Disc
– refer to CD changer175
– refer to CD player175
Compact wheel
– inflation pressure235
– wheel change251
Compartment for remote
control, refer to Ignition
lock59
Compartments, refer to
Storage compartments119
Compass, digital117
Computer73
– displays in instrument
panel73
– displays on Control
Display73
– trip computer74
"Concierge"226
Concierge service226
Condition Based Service
CBS245
"Confirmation"31
Connecting car vacuum
cleaner, refer to Connecting
electrical devices121
Connecting headphones193
Consumption, refer to
Average fuel
consumption73
Consumption indicator,
Energy Control72
Consumption statistics, refer
to Average fuel
consumption73
"Continue guidance to
destination?"151
"Contrast"
– for DVD system in rear196
– in TV mode184
Control Center, refer to
iDrive16

Everything from A to Z
276 Engine oil
– adding243
– additives, refer to Approved
engine oils243
– approved engine oil243
– checking oil level242
– electronic oil level check242
"Engine oil level"243
Engine output, refer to Engine
data262
Engine overheating, refer to
Coolant temperature72
Engine speed262
Engine starting, refer to
Starting engine60
"Enter address"139
Entering country of
destination139
Entering destination139
Entering house number or
intersection140
Entering intersection140
Entering street140
"Entertainment"162
Entertainment sound output
on/off163
"Equalizer", refer to Tone
control165
Equalizer, refer to Tone
control165
"ESN"172
ESP Electronic Stability
Program, refer to DSC
Dynamic Stability
Control89
Event Data Recorders246
Exhaust system, refer to Hot
exhaust system129
Exterior mirrors51
– adjusting51
– automatic dimming
feature52
– automatic heating52
– folding in and out51
– tilting down passenger-side
exterior mirror52External audio device119
– refer to AUX-In
connection188
Eye for tow-starting and
towing, refer to Tow
fitting257
F
Fader, refer to Tone
control164
Failure messages, refer to
Check Control78
False alarm, refer to Avoiding
unintentional alarms36
Fastening safety belts, refer to
Safety belts48
– warning lamp49
Fastening system,
adaptive124
Fastest route for
navigation148
Fast forward
– CD changer178
– CD player178
– DVD changer183
"Fast route" for
navigation148
Fault displays, refer to Check
Control78
Filler neck for washer fluid68
First-aid kit256
Flashing during locking/
unlocking, refer to Setting
confirmation signals31
Flashlight119
Flat tire
– changing wheels251
– compact wheel251
– Flat Tire Monitor92
– run-flat tires93,95,239
– TPM Tire Pressure
Monitor94
Flat Tire Monitor FTM92
Fluid reservoir, refer to Filler
neck for washer fluid68
"FM", reception
range163,166FM, waveband166
Fog lamps105
– indicator lamp13,105
Folding display screen open/
closed, DVD system in
rear192
Folding rear seat backrest123
Footbrake, refer to Braking
safely129
Footwell lamps105
For your own safety5
4-wheel drive system, refer to
xDrive90
Fresh-air nozzles, refer to Air
vents106
Front airbags97
Front passenger airbags97
– deactivating98
– refer to Exception of front
passenger seat55
Front seat adjustment43
FTM Flat Tire Monitor92
– false alarms92
– indicating a flat tire93
– initializing the system92
– malfunction96
– snow chains240
– system limits92
– warning lamp93
Fuel233
– capacity264
– display72
– high-quality brands233
– quality233
– saving128
– specifications233
Fuel clock, refer to Fuel
gauge72
Fuel consumption display,
computer, average fuel
consumption73
Fuel display, refer to Fuel
gauge72
Fuel filler door232
– closing232
– opening232
– releasing manually232
Fuses253

Reference 277
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
G
Garage door opener, refer to
Integrated universal remote
control115
Gasoline, refer to Required
fuel233
Gasoline display, refer to Fuel
gauge72
Gear changes, automatic
transmission with
Steptronic65
General driving
notes128,129
Glass sunroof, electric
– convenient operation from
outside32
– convenient operation with
comfort access37
– remote control30
Glove compartment118
– lighting118
– opening manually118
GPS navigation, refer to
Navigation system136
Grills, refer to Ventilation110
Grills of the automatic climate
control106
Gross vehicle weight, refer to
Weights264
H
Handbrake, refer to Parking
brake60
– Automatic Hold61
Hands-free system, refer to
Microphone14
Hazard warning flashers15
HDC Hill Descent Control90
"HD radio"169
HD radio, refer to High
Definition Radio169
Head airbags97
Headlamp control,
automatic102
Headlamp flasher66Headlamps102
– care, refer to Caring for your
vehicle brochure
– cleaning, refer to Washer/
wiper system67
– replacing bulbs247
Head Light, refer to Adaptive
Head Light104
Head restraints46
– sitting safely42
"Head-Up Display"100
Head-Up Display99
Heated
– mirrors52
– rear window108
– seats50
– steering wheel53
Heating106
– exterior mirrors52
– interior106
– rear window108
– residual heat110
– seats50
– steering wheel53
Heating with engine switched
off, refer to Residual
heat110
Heavy cargo, refer to Securing
cargo132
Height, refer to
Dimensions263
Height adjustment
– seats43
– steering wheel52
High beams66,104
– headlamp flasher66
– indicator lamp13
High Definition Radio169
Highs, refer to Treble and
bass163
High water, refer to Driving
through water129
Highway, refer to Route
criteria148
Hill Descent Control HDC90
Hills130
Holder for cups120Home address148
"Home address" for
navigation system148
Homepage4
Hood241
Horn10
Hot exhaust system129
"Hour memo"82
"House number" for
destination entry141
Hydraulic brake assistant,
refer to Brake assistant89
Hydroplaning129
I
IBOC, refer to High Definition
Radio169
Ice, refer to Outside
temperature warning71
Ice warning, refer to Outside
temperature warning71
ID3 tag, refer to Information on
track177
Identification, tire240
Identification mark, run-flat
tires239
iDrive16
– assistance window20
– changing language83
– changing menu page19
– changing settings81
– changing units of measure
and display type82
– confirming selection or
entry19
– controller16
– controls16
– displays, menus17
– selecting menu item19
– setting brightness82
– setting date82
– setting time81
– start menu17
– status information20
– symbols18

Reference 279
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Liftgate33
– automatic operation34
– closing33
– locking and unlocking from
inside32
– opening from inside33
– opening from outside33
– opening manually33
Light-emitting diodes
LEDs248
Lighter121
Lighter socket121
"Lighting"67,103
Lighting
– instruments105
– lamps and bulbs247
– of the vehicle, refer to
Lamps102
Light switch102
"Limit"80
Loading
– securing cargo132
– stowing cargo131
– vehicle131
Load securing equipment,
refer to Securing cargo132
"Lock after driving"32
Lock buttons in the doors,
refer to Locking32
Locking
– from inside32
– setting confirmation
signals31
– using remote control29
– without key, refer to Comfort
access36
Locking and unlocking doors
– from inside32
– setting confirmation
signals31
Locking without key, refer to
Comfort access36
Low beams102
– automatic102
Lower back support, refer to
Lumbar support44Lows, refer to Treble and
bass163
Lug bolts252
– tightening torque, refer to
After mounting252
– wrench251
Luggage compartment
capacity, refer to Cargo bay
capacity264
Luggage rack, refer to Roof-
mounted luggage rack132
Lumbar support44
M
M+S tires, refer to Winter
tires240
"Main menu" for DVD system
in rear197
Maintenance
– refer to Service and
Warranty Information
Booklet for US models245
– refer to Service
requirements75
– refer to Warranty and
Service Guide Booklet for
Canadian models245
Maintenance system245
Malfunction
– door lock32
– driver's door32
– fuel filler door232
– liftgate33
– panorama glass sunroof40
– parking brake63
Malfunction warnings, refer to
Check Control78
Manual air distribution108
Manually releasing
transmission lock65
Manual mode, automatic
transmission with
Steptronic65
"Manual" on the radio167Manual operation
– door lock32
– driver's door32
– fuel filler door232
– transmission lock, automatic
transmission65
Map
– changing scale152
– destination entry143
"Map direction of travel"152
"Map facing north"152
Map facing north152
Master key, refer to Keys/
remote control28
Maximum cooling109
Maximum speed
– for winter tires240
– with compact wheel253
Memory, refer to Seat, mirror
and steering wheel
memory44
"Menu"
– for DVD system in
rear185,197
– with rear
entertainment183,195
Menus, refer to iDrive16
Message list for traffic
information155
Microfilter111
Microphone
– for mobile phone14
– for telephone14
– for voice command
system14
Mirror dimming feature52
Mirrors51
– automatic curb monitor52
– exterior mirrors51
– folding in and out51
– heating52
– interior rearview mirror52
– memory, refer to Seat, mirror
and steering wheel
memory44
"Missed calls"216
Missed calls217

Everything from A to Z
280 Mobile phone
– accepted calls217
– adjusting volume214
– calling215
– ending call215
– installation location, refer to
Center armrest119
– missed calls217
– operation via iDrive214
– redialing217
– refer to separate operating
instructions
– Top 8217
– touch tone dialing218
Monitor, refer to iDrive16
Monitoring tire pressure, refer
to FTM Flat Tire Monitor92
"Monitor on / off"53
MP3, refer to Compressed
audio files175
Multifunction steering wheel,
refer to Buttons on steering
wheel11
Multifunction switch
– refer to Turn signals/
headlamp flasher/high
beams66
– refer to Washer/wiper
system67
Music track, refer to
Tracks176
"Mute on / off"53
N
"Navigation"73,138,144
Navigation destination
– entering manually139,141
– home address148
– selecting via map143
Navigation drive, installation
location136
Navigation DVD136
Navigation instructions, refer
to Switching voice
instructions on/off153Navigation system136
– address book146
– changing route154
– destination entry138
– destination guidance in
assistance window136
– destination list145
– displaying current
position157
– displaying route151
– ending/continuing
destination guidance150
– entering a destination
manually139,141
– last destinations145
– navigation DVD136
– opening138
– route list152
– searching for a special
destination144
– selecting destination using
information144
– selecting destination via
map143
– selecting route criteria148
– starting destination
guidance150
– switching off, refer to
Ending/continuing
destination guidance150
– voice instructions153
– volume adjustment154
"Navigation voice
instructions"53,137
Neck support, refer to Head
restraints46
"New address" for navigation
system146
"New destination"139,143
New remote control28
"New route"154
New wheels and tires239
"Next entertainment
source"53
"No video signal" for DVD
system in rear203
Nozzles, refer to Windshield
washer nozzles68"NTSC color" for DVD system
in rear204
Nylon rope, refer to Tow-
starting and towing257
O
OBD socket246
Octane ratings, refer to Fuel
specifications233
Odometer71
Oil
– additives, refer to Approved
engine oils243
– approved engine oils243
– consumption, refer to
Checking engine oil
level242
– level242
– refilling, refer to Adding
engine oil243
Oil change interval, refer to
Service requirements75
"On a new destination" for
navigation system144
Onboard computer, refer to
iDrive16
"Onboard info"73
Onboard toolkit247
"On destination"144
"On location"144
Opening and closing
– comfort access36
– from inside32
– panorama glass sunroof39
– using remote control29
– using the door lock31
Operation by voice for mobile
phone219
– adjusting volume220
– canceling219
– correcting phone
number220
– dialing phone number220
– placing a call220
– redialing221
– voice commands219
– voice phone book220