
Technology for comfort, convenience and safety
48
Switching off DSC
Press the button; the indicator lamp in the
instrument cluster lights up continuously.
DSC is now deactivated.
Stabilizing interventions of the chassis control
system DSC are no longer available. However,
the braking interventions that simulate the
function of the differential lock continue to be
active.
In the following exceptional circumstances, it
may be useful to switch off DSC for a short
period:
>When rocking the vehicle and starting off in
deep snow or on loose road surfaces
>On sandy road surfaces
>On poor surfaces with deep ruts
>If the wheels spin on muddy surfaces
>When driving with snow chains
As a result of the braking interventions,
the brakes may be subjected to additional
loads when the system is switched off. In order
to limit the brake temperature, brief automatic
suppression of the brake activation is possible.
To maintain vehicle stability, always drive with
the system switched on when possible.<
Reactivating DSC
Press the button again; the indicator lamp in the
instrument cluster goes out. DSC is now acti-
vated.
xDrive
xDrive is the all-wheel drive system of your X3.
The combined effects of xDrive and DSC fur-
ther optimize the traction and dynamic driving
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.
HDC is available for activation at vehicle speeds
below approx. 20 mph/35 km/h. When driving
down steep hills with a speed below approx.
20 mph/35 km/h, the vehicle reduces speed
automatically down to slightly more than walk-
ing speed, approx. 5 mph/8 km/h, and then
maintains this speed at a 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
50 The check of the tire inflation pressure is based
on monitoring the relative speeds of the wheels.
A flat tire is detected and reported on the basis
of a deviation in certain speed ratios.
Functional requirement
So that the Flat Tire Monitor can learn the cor-
rect inflation pressure, please perform the fol-
lowing steps:
1.Check the inflation pressures in all tires
2.Compare with the inflation pressure table
on page83 and correct if necessary
3.Initialize the system.
System limits
The Flat Tire Monitor cannot indicate
sudden severe tire damage caused by
outside factors and does not detect a natural,
even pressure drop in all four tires.<
In the following situations, on the other hand,
there can be delays in detecting tire pressure
losses, and even system failure:
>When driving on snow-covered or slippery
road surfaces.
>In the case of performance-oriented driving:
slip in the drive wheels, high lateral acceler-
ation.
>False alarms and undetected loss of pres-
sure may occur when you are driving with
snow chains fitted.
>When driving with a compact wheel, the Flat
Tire Monitor cannot operate.
Initializing system
Perform the initialization immediately
every time you correct the inflation pres-
sure, change a tire or change a wheel or all
wheels. This requires a trip.<1.Start the engine, but do not begin to drive.
2.Press the button until the yellow indicator
lamp in the instrument cluster lights up for a
few seconds.
3.Begin driving.
It takes a few minutes until the Flat Tire Monitor
can detect and indicate a flat tire.
Do not initialize the system when driving
with snow chains or with a compact
wheel.<
Indication of a flat tire
The warning lamp lights up yellow.
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
Changing a wheel on page99.
Brake Force Display
The Brake Force Display lights up in two
stages, depending on how heavily you brake.

Reference
At a glance
Controls
Driving tips
Mobility
51
The display consists of two stages:
>Normal braking:
The brake lamps 1 and the center brake
lamp light up.
>Heavy braking and braking with ABS:
The brake lamps 1 and 2 light up together
with the center brake lamp.
Airbags
The following airbags are located beneath the
marked covers:
1Front airbags for driver and front passenger
2Head airbags in front and rear
3Side airbags in front and rear
*
Protective action
To ensure that the safety systems con-
tinue to provide optimal protection,
please follow the instructions on page24.<
The front airbags help protect the driver and
front passenger by responding to frontal
impacts in which safety belts alone cannot pro-
vide adequate restraint. When needed, the
head and side airbags help provide protection in
the event of side impact. The relevant side air-bag supports the side upper body area. The
respective head air bag supports the head.
The airbags are deliberately not triggered in
every impact situation, e.g. less severe acci-
dents, certain roll-over situations or rear-end
collisions.
Labels in the rear door opening should
indicate the status of your rear seat side
airbags. If you are uncertain of their status, or
wish to have the airbags activated or deacti-
vated, please contact your BMW Sports Activity
Vehicle Center.<
For information on the correct sitting position,
refer to page24.
Do not apply adhesive materials to the
cover panels of the airbags, cover them or
modify them in any other way.
Do not attempt to remove the airbag retention
system from the vehicle. Never modify or
tamper with either the wiring or the individual
components in the airbag system. This cate-
gory includes the upholstery in the center of the
steering wheel, on the instrument cluster, the
side trim panels on the doors, and the roof pil-
lars along with the sides of the headliner. Do not
attempt to remove or dismantle the steering
wheel.
Do not touch the individual components
directly after the system has been triggered,
because there is a danger of burns. When there
are malfunctions, when deactivating, or after
the triggering of the airbag restraint system,
have the testing, repair, removal, and disposal
of the airbag generators executed only by your
BMW Sports Activity Vehicle Center or at a
workshop that works according to BMW repair
procedures with correspondingly trained per-
sonnel and has the required explosives
licenses. Unprofessional attempts to service
the system could lead to failure in an emer-
gency or undesired airbag activation, either of
which could result in personal injury.<
Airbag warning information is also provided on
the sun visors.

Things to remember when driving
76 >Read and comply with the information
enclosed with the heavy-duty cargo straps.
Always position and secure the load as
described above. If you do not, it can even
endanger the passengers during braking or
evasive maneuvers.
Never exceed either the approved gross vehicle
weight or either of the approved axle loads, refer
to page112, as excessive loads can pose a
safety hazard, and may also place you in viola-
tion of freeway safety laws.
You should never transport heavy or hard
objects unsecured in the passenger compart-
ment, as they could fly around and pose a safety
hazard to the vehicle's occupants during abrupt
braking or evasive maneuvers.<
Roof-mounted luggage rack*
A special rack system is available as a optional
accessory for your BMW. Please observe the
information contained in the installation instruc-
tions.
Loading luggage rack
Because roof racks raise the vehicle's center of
gravity when loaded, they have a major effect on
its handling and steering response. You should
therefore always remember not to exceed the
approved roof weight, the approved gross vehi-
cle weight or the axle loads when loading the
rack.
You can find the specified weights in the Tech-
nical data section on page112.
Make sure that the load is evenly distributed,
and that it does not extend outward to beyond
the limits of the loading surface. Always load the
heaviest pieces first – on the bottom. Be sure
that adequate clearance is maintained for rais-
ing the glass sunroof, and that objects do not
project into the opening path of the tailgate.
Secure roof-mounted cargo correctly and
securely to prevent it from shifting or being lost
during the trip.
Drive smoothly. Avoid sudden acceleration and
braking maneuvers. Take corners gently.
Driving on poor roads
Your X3 is at home on all paved and unpaved
roads. It combines all-wheel drive with the
advantages of a normal passenger car.
Driving on unpaved terrain can cause
damage to the vehicle.<
When you are driving on poor roads, there are a
few points which you should strictly observe –
for your own safety, for that of your passengers,
and for the safety of the vehicle:
>Familiarize yourself with the vehicle before
you begin driving. Do not take risks with the
vehicle under any circumstances.
>Always adapt the driving speed to the road
conditions. The more steep and uneven the
roadway is, the lower the speed should be.
>You can operate your vehicle on uphill and
downhill gradients with a maximum slope of
50 %. If you wish to drive on uphill and
downhill grades of this nature, make sure
beforehand that the engine oil and coolant
levels are near the MAX mark, refer to
pages90 and91.
>For very steep downhill driving, use HDC
Hill Descent Control, refer to page48. It is
possible to start off on upward inclines of up
to 32 %.
The permitted side tilt is 32 %.
>While driving, watch carefully for obstacles
such as rocks or holes. Try to avoid these
obstacles whenever possible.
>Avoid that the body makes contact with the
ground, e.g. on the crests of hills and bumpy
roads. The ground clearance of the vehicle
is a maximum of approx. 8.0 in/20 cm.
Please be aware that the ground clearance
can vary depending on the load and operat-
ing conditions of the vehicle.
>Do not drive in water that is deeper than
20 in/50 cm. If you must drive through water
up to that depth, drive at a walking speed
and do not stop.
After leaving the water, press on the foot-
brake gently several times while driving at a
low speed. The brake applications will help

Reference
At a glance
Controls
Driving tips
Mobility
99
Do not remove the covers, and never
stare into the unfiltered light for several
hours, as irritation of the retina could result.<
Changing a wheel
Safety precautions to observe in the
event of a flat tire and during all tire
changes:
Park the vehicle as far as possible from passing
traffic. Park on a firm, flat, surface. Switch on the
hazard warning flashers.
Lock the steering wheel in straight-ahead set-
ting of the wheels. Engage the handbrake and
engage first gear, reverse gear or selector-lever
setting P.
All passengers should be outside the vehicle
and well away from your immediate working
area, behind a guardrail, for instance.
If a warning triangle or portable hazard warning
lamp is required, set it up on the roadside at an
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
Open tailgate and raise or remove floor cover,
refer to page69.
1Vehicle jack
2Chock
3Lug wrench
In order to avoid rattling noises later, note the
position of the tools when you remove them and
return them to their original position when you
are through using them.
Compact wheel
The compact wheel is located under the cargo
area on the floor of the vehicle.
1.Unscrew bolt, refer to arrow1.
2.Fold up lifting handle, refer to arrow2.
3.Turn the handle to the left as far as possible,
refer to arrow3 on next page.
Turning the handle releases the com-
pact wheel. Weight approx. 18 Ibs./
8 kg. It must be held by the handle.<

Reference
At a glance
Controls
Driving tips
Mobility
101
light-alloy wheels, different lug bolts may
also be required.
4.Screw in the remaining lug bolts. Tighten all
the bolts securely in a diagonal pattern.
5.Lower the jack and remove it from beneath
the vehicle.
After mounting
1.Tighten the lug bolts in a diagonal pattern.
To ensure safety, always have the lug
bolts checked with a calibrated
torque wrench as soon as possible to
ensure that they are tightened to the speci-
fied torque. The tightening torque is
101lbft/140Nm.<
2.Stow the defective wheel in the cargo area.
3.Check and correct the tire inflation pressure
at the earliest opportunity.
Protect valve stems and valve stem
seal caps against dirt and contamina-
tion. Dirt in valve stems is a frequent source
of gradual air loss.<
4.Reinitialize the Flat Tire Monitor, refer to
page49.
Do not initialize the system when driv-
ing with the compact wheel.<
5.Replace the damaged tire with a new one as
soon as possible and have the new wheel
balanced.
Driving with compact wheel
Drive reservedly and do not exceed a
speed of 50 mph/80 km/h. Do not deacti-
vate DSC, as otherwise unstable driving condi-
tions may result.<
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. You should re-equip with
wheels and tires of the original size as quickly 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 consult you on all questions
concerning the battery.
Warning lamp
The warning lamp lights up. The bat-
tery is no longer being charged. The
alternator V-belt is defective or there is
a malfunction 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 is not running. Use the connections pro-
vided in the engine compartment. For connec-
tions, refer to Jump starting on page104.
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.<

Everything from A to Z
114 Black ice, refer to Ice
warning44
Blower
– air conditioner57
– automatic climate control60
BMW maintenance system93
Bottle holder, refer to Cup
holders63
Brake fluid92
– level92
– warning lamp92
Brake Force Display50
Brake lamps
– Brake Force Display50
– indicator lamp, defective
lamp12,53
– replacing bulbs98
Brake pads
– breaking-in72
Brake pedal, refer to Safe
braking73
Brake rotors
– brake system72
– breaking-in72
Brakes73,92
– ABS73
– brake fluid92
– breaking in72
– handbrake35
– indicator/warning lamp11
Brake system92
– brake fluid92
– brake pads92
– breaking-in72
– disc brakes74
– warning lamp92
Brake wear warning
– brake pads92
– warning lamp92
Breakdown service, refer to
Receiving assistance103
Breaking-in72
Bulb replacement, refer to
Lamps and bulbs95
Buttons on steering wheel12
C
California law
– Event Data Recorders94
– Proposition 65 Warning6
Calling, refer to telephone
Owner's Manual
Can holder, refer to Cup
holders63
Capacities112
Capacity, cargo area112
Car care, refer to the Caring
for your vehicle brochure
Car-care products, refer to the
Caring for your vehicle
brochure
Care, refer to the Caring for
your vehicle brochure
Cargo, securing75
Cargo area67
– capacity112
– cover67
– emergency operation, refer
to Manual unlocking19
– floor cover69
– folding rear seat backrest67
– lashing eyes69
– lid, refer to Tailgate19
– opening, remote control17
– power socket69
Cargo loading74
– determining load limit74
– securing cargo75
– stowing cargo75
– vehicle74
Caring for artificial leather,
refer to the Caring for your
vehicle brochure
Caring for leather, refer to the
Caring for your vehicle
brochure
Caring for plastic, refer to the
Caring for your vehicle
brochure
Caring for the carpet, refer to
the Caring for your vehicle
brochureCaring for the vehicle finish,
refer to the Caring for your
vehicle brochure
Car keys, refer to Key set16
Car phone, refer to separate
Owner's Manual
Car phone preparation66
Car radio, refer to Owner's
Manual for Radio/Onboard
Computer
Car wash73
– refer to the Caring for your
vehicle brochure
Cassette operation, refer to
Owner's Manual for Radio/
Onboard Computer
Catalytic converter, refer to
Hot exhaust system73
CD operation, refer to Owner's
Manual for Radio/Onboard
Computer
Central locking system16
– interior18
Changes, technical, refer to
For your own safety6
Changing a wheel99
Changing gears
– automatic transmission with
Steptronic37
Changing wheels86
Charge-current indicator
lamp12,101
Charging battery101
Check Gas Cap, warning
lamp12,80
Checking oil level90
Child's seats, refer to Child-
restraint systems31
Child-restraint fixing system
LATCH33
Child-restraint systems31
Child-safety locks33
Chock99
Chrome parts, care, refer to
the Caring for your vehicle
brochure
Cigarette lighter65

Reference
At a glance
Controls
Driving tips
Mobility
115
Circulation of air, refer to
Recirculated-air
mode57,60
Cleaning, vehicle, refer to the
Caring for your vehicle
brochure
Cleaning rear window39
Cleaning windows,
reservoir90
Cleaning windshield39
Clock43,44
– 12/24 hour mode44
– setting, also refer to Owner's
Manual for Radio/Onboard
Computer
– setting time43
Closing
– from inside18
– from outside16
Clothes hooks65
Clutch72
– breaking-in72
Cockpit10
Cold start, refer to Starting the
engine34
Combination of wheel/tire86
Compact wheel, wheel
changes99
Compartments, refer to
Storage compartments64
Computer44
– also refer to Owner's Manual
for Onboard Computer
– functions44
Condensation, refer to
– Air conditioner57,60
– Parking vehicle73
Connecting a car vacuum
cleaner, refer to Power
socket65
Consumption, refer to
Average fuel
consumption44
Consumption indicator, refer
to Fuel gage42
Controls, refer to Cockpit10Convenience operation
– from outside18
– panorama glass sunroof18
– windows18
Coolant91
– level91
– temperature gage42
– warning lamp91
Cooling, refer to
Temperature57,60
Cooling system filling
capacity, refer to Filling
capacities112
Copyright2
Cruise control40
– buttons on steering
wheel12
– indicator lamp40
Cruising range45
Cup holders63
Curb weight, refer to
Weights112
Cylinders, refer to Engine
data110
D
Dashboard lighting, refer to
Instrument lighting54
Dashboard system, refer to
Cockpit10
Data, technical110
– dimensions111
– engine110
– filling capacities112
– weights112
Daytime driving lamps53
DBC Dynamic Brake
Control47
– warning lamp49
Deactivating front passenger
airbags31,52
Decommissioning the vehicle,
refer to the Caring for your
vehicle brochure
Defective lamp53
Defects7Defrosting windows58,60
– air conditioner58
– automatic climate control60
Defrosting windows and
removing condensation
– air conditioner58
– automatic climate control60
Defrosting windshield, refer to
Defrosting windows58,60
Defrost position, refer to
Defrosting windows58,60
Digital clock43
Dimensions111
Dipstick, engine oil90
Directional indicators, refer to
Turn signals38
Disc brakes73
Displacement, refer to Engine
data110
Display illumination, refer to
Instrument lighting54
Display lighting, refer to
Instrument lighting54
Displays, refer to Instrument
cluster11
Disposal
– engine oil91
– vehicle battery101
Distance warning, refer to
PDC Park Distance
Control46
Door keys16
Door lock18
Doors, manual operation18
DOT Quality Grades84
Draft-free ventilation58,61
Driving lamps, refer to Parking
lamps/low beams53
Driving notes72
Driving on poor roads76
Driving stability control
systems47
Driving through water76
Drying the air, refer to Air
conditioner57,60
DSC Dynamic Stability
Control47
– indicator lamp47