2009 BMW X3 XDRIVE 30I snow chains

Technology for comfort, convenience and safety
52 jointly. These systems do not take their cus-
tomary stabilizing actions.
To increase vehicle stability, reactivate DSC as
soon as possible.
Activating DSC
Press the button again; the indicator lamp in the
instrument cluster goes out.
For monitoring purposes
When the indicator lamp flashes:
DSC is controlling the drive and braking
forces.
When the indicator lamp lights up:
DSC is deactivated.
DTC Dynamic Traction Control
DTC is a variation of DSC that is optimized for
forward momentum for particular road condi-
tions, e.g. unplowed snow-covered roads. In
this mode, the system assures maximum for-
ward momentum, but with limited driving stabil-
ity. For this reason, drive with corresponding
caution.
In the following exceptional circumstances, it
may be useful to temporarily activate DTC:
>When driving on snow-covered inclines, in
slush, or on unplowed, snow-covered roads
>When freeing a stuck vehicle or starting up
in deep snow, sand, or on a loose ground
surface
>When driving with snow chains
*
Activating DTC
Press the button; the DTC indicator lamp in the
instrument cluster lights up.
For monitoring purposes
When the indicator lamp flashes:
DTC is controlling the drive forces and
braking forces.
When the indicator lamp lights up:
DTC is activated.
Deactivating DTC
Press the button again; the DTC indicator lamp
in the instrument cluster goes out.
xDrive
xDrive is the all-wheel drive system of your
BMW. The combined effects of xDrive and DSC
further optimize the traction and dynamic driv-
ing characteristics. The all-wheel drive system
xDrive variably distributes the drive torque to
the front and rear axle depending on the driving
situation and prevailing road conditions.
HDC Hill Descent Control
The concept
HDC is a system for hill descent assistance that
reduces the speed on steep downward inclines
and makes it even easier to control the driving
characteristics of your BMW under these condi-
tions. The vehicle moves at slightly more than
walking speed without active intervention from
the driver.
You can activate HDC at vehicle speeds below
approx. 20 mph/35 km/h. If it is traveling down a
steep slope at a speed below approx. 20 mph/
35 km/h, the vehicle then automatically decel-
erates down to slightly more than walking
speed, approx. 5 mph/8 km/h, and then keeps
this speed constant.
You can use the accelerator or brakes to vary
this automatically controlled speed within a
range extending from approx. 3 mph/5 km/h to
15 mph/25 km/h.
You can specify a target speed within the same
range by using the +/– buttons of the cruise
control on the steering wheel.

Technology for comfort, convenience and safety
54 After releasing the brake, start driving immedi-
ately; otherwise, the acceleration assistant will
no longer hold the vehicle after approx.
2 seconds and the vehicle will start to roll back-
ward.<
Malfunction
The warning lamp for the brake system
lights up in yellow. The acceleration
assistant has failed. The vehicle will not
be held after the brake is released. Have the
system checked as soon as possible.
Flat Tire Monitor FTM*
The concept
The Flat Tire Monitor detects a pressure loss in
a tire based on comparing the speeds of the
individual wheels while driving.
In the event of a pressure loss, a change occurs
in the rolling circumference and therefore the
rotation speed of the corresponding wheel.
This change is detected and signaled as a flat
tire.
Functional requirement
To ensure the reliable signaling of a flat tire, the
system must be initialized at the correct tire
inflation pressure.
The initialization must be carried out after
each correction of the tire inflation pres-
sure and after every tire or wheel change.<
System limits
The Flat Tire Monitor cannot predict sud-
den severe tire damage caused by out-
side factors and does not detect a natural, even
pressure drop in all four tires.<
In the following situations, the system could be
delayed or malfunction:
>When the system has not been initialized
>When driving on snow-covered or slippery
road surfaces
>Sporty driving style: slip in the drive wheels,
high lateral acceleration.>When driving with snow chains
*
When driving with a compact wheel, the Flat
Tire Monitor cannot operate.
Initializing system
The initialization is completed while driv-
ing and can be interrupted at any time.
The initialization automatically continues when
driving resumes.
Do not initialize the system when driving with
snow chains
* or with a compact wheel.<
1.Start the engine just before driving, but do
not begin to drive.
2.Press the button for at least 4 seconds, but
not longer than 2 minutes. After the button
is released, the indicator lamp in the instru-
ment cluster lights up yellow for a few sec-
onds.
3.Begin driving.
The initialization is completed while driving,
without requiring any further input from you.
Indication of a flat tire
The warning lamp lights up red. In addi-
tion, an acoustic signal sounds. There is
a flat tire or extensive inflation pressure
loss.
1.Reduce speed and stop the vehicle care-
fully. Avoid sudden braking and steering
maneuvers.
2.Identify damaged tire.
If identification is not possible, con-
tact your BMW Sports Activity Vehi-
cle Center.<
3.Replace the damaged wheel, refer to
Wheel changes on page116.

Wheels and tires
100
Snow chains*
Only certain fine-link snow chains are tested,
classified as road-safe, and recommended by
BMW. You can obtain a list of these from your
BMW Sports Activity Vehicle Center. It is only
permissible to use them in pairs and on the rear
wheels.
Follow the manufacturer's instructions when
installing snow chains.
Do not exceed a vehicle speed of 30 mph/
50 km/h with snow chains mounted.
Do not initialize the Flat Tire Monitor
*
with snow chains installed; otherwise, the
instrument might issue an incorrect reading.
When you are driving with snow chains, it can
be beneficial to temporarily activate DTC, refer
to page52.<

Reference
At a glance
Controls
Driving tips
Mobility
135
Driving stability control
systems51
Driving through water87
Driving tips, refer to Driving
instructions84
Drying air, refer to Switching
cooling function on/
off64,67
DSC Dynamic Stability
Control51
– indicator lamp52
DTC Dynamic Traction
Control52
– indicator lamps52
DVD changer, refer to Owner's
Manual for Radio/Onboard
Computer
Dynamic Stability Control
DSC51
– indicator lamp52
Dynamic Traction Control
DTC52
– indicator lamps52
E
Electrical malfunctions
– automatic transmission
malfunction41
– door lock21
– driver's door21
– fuel filler door92
– liftgate22
– panorama glass sunroof25
Electronic brake-force
distribution51
Electronic Stability Program,
refer to DSC Dynamic
Stability Control51
Emergency operation, refer to
Manual operation
– doors21
– driver's door21
– fuel filler door92
– liftgate22
– panorama glass sunroof25
Emergency request121
Emergency Service, refer to
Receiving assistance121Engine
– breaking-in82
– data128
– indicator lamps38
– overheated, refer to Coolant
thermometer47
– speed46
– starting38
– switching off39
Engine compartment102
Engine coolant105
Engine coolant
temperature47
Engine oil103
– additives, refer to Approved
engine oils104
– approved engine oils104
– electronic oil level
control103
– indicator/warning lamp103
– possible displays103
– required oil grades104
– specifications, also refer to
Approved engine oils104
Engine oil grades104
Engine oil level, indicator/
warning lamp103
Engine oil pressure103
– indicator/warning lamp103
Engine output, refer to Engine
data128
Equipment package, refer to
Service and Warranty
Information Booklet for US
models, Warranty and
Service Guide Booklet for
Canadian models
ESP Electronic Stability
Program, refer to DSC
Dynamic Stability
Control51
Exhaust system
84
Exterior mirrors33
– automatically dimming34
External audio device74
Eye, tow starting and
towing123
F
Failure of electrical
accessories120
False alarms, refer to Avoiding
unintentional alarms26
Fastening safety belts, refer to
Safety belts32
Filter, refer to
– Microfilter65
– Microfilter/activated
charcoal filter68
First-aid kit122
Flat tire116
– compact wheel117
– Flat Tire Monitor54
– refer to Tire inflation
pressure94
– refer to Wheel changes116
– Tire Pressure Monitor55
Flat Tire Monitor54
– indicator lamp54
– initializing system54
– snow chains100
– system limits54
– warning errors54
Flooding, refer to Driving
through water84
Floor cover78
Fog lamps, indicator lamp61
Folding rear seat back76
Footwell lamps61
Four wheel drive, refer to
xDrive52
Front airbags57
Front fog lamps61
– replacing bulbs115
Front passenger airbags
– automatic deactivation57
– status58
Fuel93
– average consumption49
– capacity131
– gauge46
– quality93
– refer to Average fuel
consumption49
– saving83

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