2010 BMW X3 XDRIVE 28I ECU

Reference
At a glance
Controls
Driving tips
Mobility
101
Under the hood
Never attempt to perform any service or
repair operations on your vehicle without
the required professional technical training. If
you are not familiar with the regulations to be
observed, have work on your vehicle carried out
only by your BMW Sports Activity Vehicle Cen-
ter or at a workshop that works according to
BMW repair procedures with appropriately
trained personnel. If this work is not carried out
properly, there is a danger of subsequent dam-
age and related safety hazards.<
Hood
Unlocking
Pull the lever located under the left side of the
instrument cluster.
Opening
To avoid causing damage, make sure that
wiper arms are resting against the wind-
shield before opening the hood.<
Press the release handle and open the hood.
Closing
Close the hood with force by allowing it to fall
from a height of approx. 1 ft/30 cm. It must
engage audibly.
Avoid injuries by making sure that the
hood's closing region is clear and unob-
structed.
If you see any signs that the hood is not com-
pletely closed while driving your vehicle, you
should stop at once and close it securely.<

Reference
At a glance
Controls
Driving tips
Mobility
111
Replacing components
Onboard tool kit
The onboard tool kit is located in the cargo area
under the floor panel.
To open the panel, grasp the handle, refer to
arrow, and pivot upward.
Wiper blades
Replacing front wiper blades
1.Move the wiper into the fold-out position,
refer to page42.
2.Lift the wiper arm and press the securing
spring, refer to arrow.
3.Pull the wiper blade off toward the wiper
arm.
4.Insert the new blade and snap it into place.
To prevent damage to the wipers, always
fold them back down onto the windshield
before you turn the ignition key to position 1
or 2 or open the hood.<
Replacing rear wiper blade
1.Lift the wiper arm.
2.Pull off the wiper blade, refer to arrow.
3.Insert a new wiper blade.
Lamps and bulbs
Lamps and bulbs make a significant contribu-
tion to road safety. Therefore, comply fully with
the following instructions during bulb replace-
ment. If you are not familiar with the specified
procedures or they are not described here,
BMW recommends having this work carried out
at your BMW Sports Activity Vehicle Center.
Never touch the glass of new bulbs with
your bare fingers, as even minute
amounts of contamination will burn into the
bulb's surface and reduce its service life. Use a
clean cloth, paper towel, or the like or grasp
bulb by its base.<
A replacement bulb set is available from your
BMW Sports Activity Vehicle Center.
In all work on the electrical system, switch
off the relevant component to prevent
short circuits. To avoid possible injury or equip-
ment damage when replacing bulbs, follow any
instructions provided by the bulb manufac-
turer.<
When caring for headlamps, please follow the
instructions on page109.

Replacing components
116
What you will need
Open liftgate and raise or remove floor cover,
refer to page78.
1Vehicle jack
2Lug wrench
3Wheel chock
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 undercarriage of the vehicle.
Removing compact wheel
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.
Turning the handle releases the com-
pact wheel. Its weight of approx.
18 lbs./8 kg is then entirely supported by
the handle.<4.Slowly lower the handle as far as possible,
refer to arrow4.
5.Pull the compact wheel to the rear so that it
is still securely resting in its compact wheel
receptacle.
6.If need be, turn the wheel in the compact
wheel receptacle so that the attachment of
the retaining strap to the rim points toward
the rear.
7.Rotate the clamp by 180°, refer to arrows 1,
and unhook the retaining strap from the
clamp, refer to arrow 2.
8.Take out the compact wheel toward the
back.
9.Fasten the retaining strap to the compact
wheel receptacle and resecure the compact
wheel receptacle by reversing the above
steps.
The width of the defective wheel prevents
it from fitting into the compact wheel
receptacle in place of the compact wheel
itself.<

Reference
At a glance
Controls
Driving tips
Mobility
117
Inserting compact wheel
The compact wheel is reinserted in the reverse
sequence of its removal.
When attaching the retaining strap to the
compact wheel, make sure the belt is
threaded through 2 rim openings, with one
unoccupied hole between them; otherwise, the
compact wheel could come loose in an acci-
dent.<
Preparing wheel change
1.Observe the safety precautions on
page116.
2.Secure the vehicle to prevent it from rolling:
Place the wheel chock behind the front
wheel on the side of the vehicle opposite
the side being raised. If the vehicle is parked
on a downward slope, place the wheel
chock securely in front of this wheel. If the
road surface is steeply inclined, take addi-
tional preventive steps to stop the vehicle
from rolling.
3.Loosen the wheel lugs by a half turn.
Jacking up vehicle
1.Position the vehicle jack at the jacking point
closest to the wheel so that the entire sur-
face of the jack base perpendicularly con-
tacts the ground under the jacking point.
The vehicle jack is designed for
changing wheels only. Do not attempt
to raise another vehicle model with it or to
raise any load of any kind. To do so could
cause accidents and personal injury.<2.Guide the jack head into the rectangular
recess of the jacking point when cranking
up, refer to drawing inset.
3.Jack the vehicle up until the wheel you are
changing is raised from the ground.
Mounting a wheel
1.Unscrew the lug bolts and remove the
wheel.
2.Remove accumulations of mud or dirt from
the mounting surfaces of the wheel and
hub. Clean the lug bolts.
3.Position the new wheel or compact wheel.
Secure the wheel by screwing at least two
lug bolts into opposite bolt holes. When you
mount wheels other than Genuine BMW
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
101 lb ft/140 Nm.<
2.Stow the defective wheel in the cargo area.
3.Check and correct the tire inflation pressure
at the earliest opportunity.

Replacing components
118 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 page121.
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.

Reference
At a glance
Controls
Driving tips
Mobility
123
Towing methods
To avoid damage, do not lift the vehicle by
the tow fitting or body and suspension
parts.<
In some countries, towing with tow bars or
ropes on public roads is not permitted. Familiar-
ize yourself with the regulations on towing in the
specific country.
With tow bar
The towing vehicle must not be lighter
than the vehicle to be towed; otherwise,
it will not be possible to safely control vehicle
response.<
The tow fittings used should be on the same
side on both vehicles. Should it prove impossi-
ble to avoid mounting the tow bar at an offset
angle, please observe the following:
>Clearance and maneuvering capability will
be strictly limited in corners.
>When mounted at an angle, the tow bar will
exert lateral forces, tending to push the
vehicle sideways.
Secure the tow bar to the tow fittings
only. Otherwise, other vehicle parts could
be damaged.<
With tow-rope
When starting off in the towing vehicle, make
sure that the tow-rope is taut.
To avoid jerking and the associated
stresses on vehicle components when
towing, always use nylon ropes or nylon straps.
Secure the tow rope to the tow fittings only.
Otherwise, other vehicle parts could be dam-
aged.<
With tow truck
Do not tow your BMW with only the front
or rear axle raised; otherwise, the wheels
could lock and the transfer case could be dam-
aged. Tow starting
If possible, do not tow start the vehicle; jump
start the engine instead, refer to page121.
Vehicles equipped with catalytic convertors
should only be tow started when the engine is
cold. It is not possible to tow start an engine
equipped with an automatic transmission.
1.Switch on hazard warning flashers, comply
with local regulations.
2.Switch on ignition, refer to page38.
3.Shift into 3rd gear.
4.Have the vehicle tow-started with the clutch
depressed and slowly release the clutch.
After the engine starts, immediately
depress the clutch again.
5.Stop at a suitable location, remove the tow
bar or rope and switch off the hazard warn-
ing flashers.
6.Have the vehicle checked.
Do not activate the HDC Hill Descent
Control during tow starting, refer to
page52.<

Reference
At a glance
Controls
Driving tips
Mobility
131
Blower, refer to
– Air volume64
– Air volume, adjusting
manually67
BMW homepage4
BMW maintenance
system106
Bottle holder, refer to Cup
holders72
Brake assistant51
– warning lamp53
Brake fluid105
– level105
– warning lamp105
Brake force display56
Brake lamps114
– brake force display56
– indicator lamp, defective
bulb12,59
– replacing bulbs114
Brake pads85
– breaking-in82
– warning lamp85
Brake pedal, refer to Safe
braking84
Brake rotors
– brake system82
– breaking-in82
Brakes84,105
– ABS51,84
– brake fluid105
– brake pads85
– breaking-in82
– handbrake39
– indicator/warning lamp12
Brake system105
– brake fluid105
– brake pads85
– breaking-in82
– disk brakes85
– warning lamp105
Brake wear warning
– refer to Brake pads85
– warning lamp105
Breakdown service, refer to
Receiving assistance120
Breaking-in82Bulb replacement, refer to
Lamps and bulbs111
Buttons on steering wheel13
C
California law
– Event Data Recorders107
– Proposition 65 Warning5
Calling, refer to telephone
operation instructions
Can holder, refer to Cup
holders72
Capacities129
Capacity, cargo area128
Care
– exterior108
– interior110
Care and maintenance
– car-care products108
– carpets110
– car washes108
– CD/DVD players110
– chrome sections109
– displays110
– fine wood components110
– finish109
– hand washes108
– headlamps109
– high pressure cleaning
jets108
– leather110
– light-alloy wheels109
– plastic components110
– rubber seals109
– running boards109
– safety belts110
– sensors109
– upholstery materials/cloth
coverings110
– windows109
– wiper blades109
Cargo, securing86Cargo area22,76
– capacity128
– cover77
– emergency release, refer to
Opening manually22
– enlarging76
– floor cover78
– foldable rear backrest76
– hatch, refer to Liftgate22
– lashing eyes78
– opening from outside22
– opening with remote
control20
– power socket74
Cargo loading85
– load86
– securing cargo86
– stowing cargo
86
– vehicle85
Caring for vehicle finish109
Caring for your vehicle108
Car keys, refer to Key set18
Car phone, refer to separate
Owner's Manual
Car phone preparation75
Car radio, refer to Owner's
Manual for Radio/Onboard
Computer
Car washes84,108
Cassette operation, refer to
Owner's Manual for Radio/
Onboard Computer
CD operation, refer to Owner's
Manual for Radio/Onboard
Computer
Central locking system19
– interior21
Changes, technical, refer to
For your own safety5
Changing gears
– automatic transmission with
Steptronic41
– manual transmission40
Changing wheels98,115
Charge-current indicator
lamp12,118
Check Gas Cap, warning
lamp12,92

Everything from A to Z
132 Child's seat, refer to Child
restraint devices35
Child restraint devices35
– installing35
– with tether strap36
Child-restraint system
LATCH36
Child-safety locks37
Child seat security35
Cigarette lighter74
Circulation of air, refer to
Recirculated-air
mode64,68
Cleaning rear window43
Cleaning your BMW, refer to
Care and maintenance108
Clock47,48
– 12 or 24 hour mode48
– setting, also refer to Owner's
Manual for Radio/Onboard
Computer
– setting time47
Closing
– from inside21
– with the remote control19
Clothes hooks74
Clutch82
– breaking-in82
Cockpit10
Cold start, refer to Starting
engine38
Combination of wheel/tire99
Compact wheel, wheel
changes116
Compartments, refer to
Storage compartments73
Compartments in cargo area,
refer to Behind side trim
panel78
Compass, digital70
Computer48
– also refer to Owner's Manual
for Onboard Computer
– functions48
Condensation, refer to When
the vehicle is parked84
Confirmation signal for
locking/unlocking
vehicle19,21Connecting car vacuum
cleaner, refer to Connecting
electrical devices74
Connecting electrical
devices74
Consumption, refer to
Average fuel
consumption49
Consumption indicator, refer
to Fuel gauge46
Controls, refer to Cockpit10
Convenience operation
– from outside21
– panorama glass sunroof21
– windows21
Coolant105
– level105
– temperature gauge47
– warning lamp105
Cooling, refer to
Temperature64,67
Copyright2
Correct wheels and tires99
Courtesy lamps61
Cruise control44
– buttons on steering
wheel13
– indicator lamp44
Cruising range49
Cup holders72
Curb weight, refer to
Weights128
Cylinders, refer to Engine
data126
D
Dashboard lighting, refer to
Instrument lighting61
Dashboard system, refer to
Cockpit10
Data, technical126
– dimensions127
– engine126
– filling capacities129
– weights128
Daytime driving lamps59
Deactivating front passenger
airbags35,57Defective lamp59
Defects7
Defrosting windows64,67
– air conditioner64
– automatic climate control67
Defrosting windows and
removing condensation
– air conditioner64
– automatic climate control67
Defrost position, refer to
Defrosting windows64,67
Digital clock47
Digital compass70
Dimensions127
Dimming mirror34
Directional indicators, refer to
Turn signals41
Disk brakes85
Displacement, refer to Engine
data126
Display illumination, refer to
Instrument lighting61
Display lighting, refer to
Instrument lighting61
Displays, refer to Instrument
cluster11
Disposal, vehicle battery118
Distance warning, refer to
PDC Park Distance
Control50
Door exit lighting61
Door handle lighting59
Door keys18
Door lock21
Doors
– locking and unlocking from
inside21
– manual operation21
– unlocking and locking,
confirmation signals19,21
DOT Quality Grades97
Draft-free ventilation65,
68
Driving lamps, refer to Parking
lamps/low beams59
Driving notes84
Driving on poor roads87
Driving stability control
systems51
Driving through water87