2009 BMW X3 XDRIVE 30I winter tires

Wheels and tires
98
Temperature
The temperature grades are A, the highest, B
and C representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel.
Sustained high temperature can cause the
material of the tire to degenerate and reduce
tire life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds to
a level of performance that all passenger car
tires must meet under the Federal Motor Vehi-
cle Safety Standard No. 109. Grades B and A
represent higher levels of performance on the
laboratory test wheel than the minimum
required by law.
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive speed,
underinflation, or excessive loading, either sep-
arately or in combination, can cause heat
buildup and possible tire failure.<
M+S
Winter and all-season tires.
These have better winter properties than sum-
mer tires.
Tire condition
Inspect your tires frequently for tread wear,
signs of damage and for foreign objects lodged
in the tread. Check the tread depth.
Minimum tread depth
The tread depth should not fall below 0.12 in/
3 mm. At tread depths below 0.12 in/3 mm,
there is an increased risk of high-speed hydro-
planing, even when only small amounts of water
are present on the road surface.
Winter tires display a noticeable loss in their
ability to cope with cold-weather driving condi-
tions once the tread wears to below 0.16 in/
4 mm. To ensure continued safety you should
always have such tires replaced.Wear indicators at the tread-groove base, refer
to arrow, are distributed over the tire's circum-
ference and are marked on the side of the tire
with TWI – Tread Wear Indicator. If the tire tread
has worn down to the wear indicators, then the
legally permissible tread depth limit of 0.063 in/
1.6 mm has been reached.
Wheel/tire damage
Please note that low-profile tires, make
wheels, tires and suspension parts more
susceptible to road hazard and consequential
damages.<
Unusual vibrations encountered during normal
vehicle operation can indicate tire failure or
some other vehicle defect. This can, for exam-
ple, be caused by driving over curbs. The same
applies to any other abnormal road behavior,
such as pulling severely to the right or left.
In these cases, reduce speed immedi-
ately and have wheels and tires checked
immediately. Drive carefully to the nearest
BMW Sports Activity Vehicle Center or tire spe-
cialist. Have the vehicle towed to one of these
locations if necessary.
Tire damage can pose a potentially lethal safety
hazard for the vehicle's occupants and other
road users alike.<
New wheels and tires
Have new wheels and tires installed only
by your BMW Sports Activity Vehicle
Center or a tire shop that works according to
BMW repair procedures with correspondingly
trained personnel. If this work is not carried out
properly, there is a danger of subsequent dam-

Reference
At a glance
Controls
Driving tips
Mobility
99
age and related safety hazards. Make sure that
the new wheels are balanced.<
Retreaded tires
BMW does not recommend the use of
retreaded tires; otherwise, driving safety
may be reduced. The causes for this include the
possibly different tire casing structures and the
often wide variations in their age, which can
result in a limited service life.<
Correct wheels and tires
BMW recommends that you use only
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 ask your BMW Sports Activity Vehicle
Center for the correct wheel-and-tire combina-
tion.
The correct wheel-and-tire combination affects
various systems whose function would other-
wise be impaired, e.g. ABS, DSC or xDrive.
To maintain good handling and vehicle
response, use only tires of a single tread config-
uration from a single manufacturer. After tire
damage, always remember to have the original
wheel and tire combination remounted on the
vehicle as soon as possible.
Wheels equipped with electronics for
TPM Tire Pressure Monitor
When installing new tires or when changing
from summer tires to winter tires or vice versa,
only use wheels equipped with TPM electron-
ics; otherwise, the Tire Pressure Monitor can-
not detect a flat tire, refer to page55. Your
BMW Sports Activity Vehicle Center will be
happy to advise you in this regard.
Recommended tire brands
BMW recommends particular tire brands for
each tire size. You will recognize them by the
clearly visible BMW identification on the tire
sidewall.
With proper use, these tires meet the highest
standards for safety and handling characteris-
tics.
Special characteristics of winter tires
BMW recommends winter tires for use on win-
ter road surfaces or at temperatures below
+457/+76. Although all-season M+S tires do
provide better winter traction than summer
tires, they generally fail to provide the same lev-
els of cold-weather performance as winter tires.
Observing speed ratings
Never exceed the maximum speed for
which the winter tires are rated.<
Storage
Store wheels or tires in a cool, dry place, pro-
tecting them from light whenever possible. Pro-
tect the tires from contact with oil, grease and
fuel. Do not exceed the maximum tire inflation
pressure indicated on the side wall of the tire.
Changing wheels from one axle to
another
BMW does not recommend changing the front
wheels to the back or vice versa as this can
impair handling characteristics.

Reference
At a glance
Controls
Driving tips
Mobility
119
Protect valve stems with valve stem
seal caps from dirt and contamina-
tion. Dirt in valve stems is a frequent source
of gradual air loss.<
4.Reinitialize the Flat Tire Monitor
* or reset
the Tire Pressure Monitor
*, refer to
pages54, 55.
Do not initialize the Flat Tire Monitor
when driving with a compact wheel.<
5.Replace the defective 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.
Mounting the compact wheel can change the
driving characteristics. For example, it can
reduce tracking stability during braking, extend
braking distances, and alter self-steering char-
acteristics in the limit range. With winter tires,
these characteristics are more pronounced.
Only one compact wheel may be
mounted. You should re-equip with
wheels and tires of the original size as soon as
possible.<
Vehicle battery
Maintenance
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 happy to advise you on all questions con-
cerning the battery.
Warning lamp
The warning lamp lights up. The battery
is no longer being charged. The alterna-
tor V-belt is defective or there is a mal-
function in the charge current circuit of the
alternator. Have the system checked immedi-
ately.Do not continue driving if the V-belt is
defective. The engine could be damaged
due to overheating.
Moreover, an increased amount of force is
required for steering if there is a sharp drop in
the onboard supply voltage.<
Charging battery
Charge the battery in the vehicle only when the
engine has been switched off. For connections,
refer to Jump starting on page122.
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 secure the
battery to prevent it from tipping over during
transport.<
Power failure
After a temporary power supply interruption,
some equipment is subject to limited use and
must be reinitialized. Individual settings are also
lost and must be updated again:
>Panorama glass sunroof
It may be only possible to raise the sunroof.
The system must be initialized, refer to
page24.
>Power windows
The pinch protection system must be reini-
tialized, refer to page23.
>Seat and mirror memory
The positions must be stored again, refer to
page31.
>Time
Must be set again, refer to page47.

Everything from A to Z
132
Everything from A to Z
Index
A
ABS Antilock Brake
System51
– indicator lamp12
Acceleration assistance
– refer to Acceleration
assistant53
– refer to DSC51
Acceleration assistant53
Accessories, refer to For your
own safety5
Accident, refer to Receiving
assistance121
Activated-charcoal filter68
Adaptive Head Light60
Adding engine oil104
Adjusting seats28
– electrically28
– mechanically28
– mechanically, Sports seat29
Airbags57
– deactivating front passenger
side35,57
– indicator lamp for front
passenger airbags58
– sitting safely27
– warning lamp58
Air circulation, refer to
Recirculated-air
mode64,68
Air conditioner63
Air distribution
– air conditioner64
– automatic climate control67
Airing, refer to
Ventilation65,68
Air outlets, refer to
Ventilation65,68
Air pressure, refer to Tire
inflation pressure94
Air vents, refer to
Ventilation65,68Air volume64
– adjusting manually67
AKI, refer to Fuel
specifications93
Alarm system25
– avoiding unintentional
alarms26
All-season tires, refer to
Special characteristics of
winter tires99
All wheel drive, refer to
xDrive52
Anchorage points78
Antifreeze
– coolant105
– washer fluid43
Antilock Brake System
ABS51
– indicator lamp12
Anti-theft alarm system, refer
to Alarm system25
Approved axle load, refer to
Weights130
Approved engine oils104
Approved gross vehicle
weight, refer to Weights130
Armrest
– front73
– rear73
Ashtray74
AUC Automatic recirculated-
air control68
Audio device, external74
Automatic
– air distribution67
– air volume67
– recirculated-air control
AUC68
Automatic climate control66
Automatic cruise control44
Automatic curb monitor33
Automatic deactivation of
front passenger airbags57Automatic headlamp
control60
Automatic transmission with
Steptronic40
– indicator lamp41
– interlock38
– selector lever interlock40
– shiftlock40
– towing123
– tow starting124
AUTO program67
Average fuel consumption49
– setting units48
Average speed49
– setting units48
Avoiding unintentional
alarms26
Axle weights, refer to
Weights130
B
Backrest, refer to Seats28
Backrest contour, refer to
Lumbar support29
Backup lamps, bulb
replacement115
Bandages, refer to First-aid
kit122
Bar, towing124
Battery119
– charging119
– disposal119
– indicator lamp12
– jump starting122
– power failure119
– remote control18
– warning lamp119
Belts, refer to Safety belts32
Beverage holder, refer to Cup
holders72

Everything from A to Z
138 Maximum speed, with winter
tires99
Mechanical seats28
Memory, refer to
– Seat and mirror memory31
– Vehicle Memory, Key
Memory18
Microfilter
– air conditioner65
– automatic climate control68
Microphone, refer to Car
phone preparation75
Microphone for telephone75
Mirrors33
– automatic curb monitor33
– mirror heating33
– mirror memory, refer to Seat
and mirror memory31
Mobile phone, refer to
separate operating
instructions
Monitoring tire pressure
– refer to Flat Tire Monitor54
– refer to Tire Pressure
Monitor55
Multi-function steering wheel,
refer to Buttons on steering
wheel13
Multifunction switch
– turn signals/headlamp
flasher41
– washer/wiper system42
N
Navigation system, refer to
separate Owner's Manual
Neck support, refer to Head
restraints29
Nets73
New keys18
Nonsmoker's equipment
package74
Nozzles, refer to
Ventilation65,68
Nylon rope, refer to Tow
starting and towing123
O
OBD socket106
Octane rating, refer to Fuel
quality93
Odometer46
Oil
– additives, refer to Approved
engine oils104
– approved engine oils104
– level103
– refilling, refer to Adding
engine oil104
Oil change interval, refer to
Service Interval Display47
Oil grades104
Oil level103
– warning lamp103
Oil pressure103
– warning lamp103
OIL SERVICE47
Old batteries, refer to
Disposal119
Onboard computer, refer to
separate Owner's Manual
Onboard Diagnostics OBD
interface socket106
Onboard tool kit112
Opening and closing
– from inside21
– using the door lock21
– with the remote control19
Output, refer to Engine
data128
Outside air
– air conditioner64
– automatic climate control68
Outside temperature display
– changing unit of measure48
– on computer48
Overheating of engine, refer to
Coolant thermometer47
P
Package tray, refer to Cargo
area cover77
Panic mode20Panorama glass sunroof23
– closing after electrical
malfunction25
– convenience operation21
– initializing24
– power failure24
– remote control19
Park Distance Control PDC50
Parking aid, refer to PDC Park
Distance Control50
Parking assistant, refer to
PDC Park Distance
Control50
Parking brake, refer to
Handbrake39
Parking lamps59
Parking lamps/low beams59
Partition net78
Parts and accessories, refer to
For your own safety5
Passenger-side mirror tilt
function33
Pathway lighting59
PDC Park Distance Control50
Pinch protection system23
– power windows23
Pollen, refer to
– Microfilter65
– Microfilter/activated
charcoal filter68
Power failure
– battery119
– panorama glass sunroof24
– windows23
Power seat adjustment28
Power socket
– in cargo area74
– refer to Cigarette lighter
socket74
Power windows22
– initializing23
– safety switch23
Pressure, tires94
Pressure monitoring,
tires54,55
Programming settings, refer
to Vehicle Memory, Key
Memory18
Puncture, Flat Tire Monitor54

Everything from A to Z
140 Signal horn, refer to Horn10
Sitting safely27
– with airbags27
– with head restraint27
– with safety belt27
Ski bag75
Smokers' package, refer to
Ashtray74
Snow chains100
SOS, refer to Initiating an
emergency request121
Spare fuses120
Spare key18
Spare wheel, refer to Compact
wheel117
Speed
– with compact wheel119
– with winter tires99
Speedometer, refer to
Instrument cluster11
Split rear backrest, refer to
Enlarging cargo area76
Sport program, automatic
transmission with
Steptronic41
Sports seat29
Stability control, refer to
Driving stability control
systems51
Starting, refer to Starting
engine38
Starting difficulties
– at very low temperatures39
– jump starting122
Starting engine38
Starting off uphill, refer to
Acceleration assistant53
Status of passenger
airbags58
Status of this Owner's Manual
at time of printing5
Steam cleaners108
Steering lock38
Steering wheel10,13
– adjustment34
– buttons on steering
wheel13
– heater34
– lock38Steptronic40
Storage compartments73
Storage package73
Storage package nets73
Storage space, refer to Cargo
area76
Storing desired speed, refer to
Cruise control44
Storing seat position, refer to
Seat and mirror memory31
Storing tires99
Storing your vehicle111
Straps, refer to Cargo
loading85
Sunroof, refer to Panorama
glass sunroof23
Switches, refer to Cockpit10
Switching cooling function on/
off64,67
Switching off engine39
Symbols4
T
Tachometer46
Tail lamps115
– indicator lamp, defective
bulb59
– replacing bulbs115
Tank, washing systems, refer
to Washer fluid43
Tank capacity131
Technical data128
Technical modifications5
Telephone, refer to separate
operating instructions
Temperature
– air conditioner64
– automatic climate control67
– tires98
Temperature display
– outside temperature48
– outside temperature
warning48
– setting units48
Temperature gauge47
Temperature of coolant, refer
to Coolant thermometer47
Temperature warning48Tempomat, refer to Cruise
control44
Thigh support adjustment29
Three point safety belts32
Tightening torque of lug bolts,
refer to After mounting118
Tilt alarm sensor
– remote control20
– switching off20,26
Tilt function, passenger-side
mirror33
Tire inflation pressures94
– monitoring, refer to Tire
Pressure Monitor55
– restoring94
Tire Pressure Monitor55
– malfunction warnings55
– resetting system55
– system limitations55
– warning lamp55
Tire replacement98
Tires
– age97
– breaking-in82
– changing98
– changing, also refer to Wheel
changes116
– coding97
– condition98
– damage98
– DOT Quality Grades97
– flat116
– inflation pressure94
– inflation pressure table96
– size, refer to Correct wheels
and tires99
– storage99
– temperature98
– traction97
– tread98
– tread wear97
– Uniform Tire Quality
Grading97
– wear indicators, refer to
Minimum tread depth98
– winter tires99
Tools, refer to Onboard tool
kit112

Everything from A to Z
142 Windshield wipers, refer to
Washer/wiper system42
Winter tires99
– changing116
– condition98
– storage99
Wiper blade replacement112
Wiper system42
Working in the engine
compartment101
Wrench/screwdriver, refer to
Onboard tool kit112
X
xDrive52
Xenon headlamp113
– replacing bulbs113
Y
Your individual vehicle5