BMW X3 2.5I SAV 2004 Owners Manual

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89
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
which all passenger car tires must meet
under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A repre-
sent 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 load-
ing, either separately or in combination,
can cause heat buildup and possible tire
failure.<
M+S
Winter and all-season tires.
These have better winter properties than
summer tires.
Tire condition
Inspect your tires frequently for treadwear,
signs of damage and for foreign objects
lodged in the tread. Check the tread pat-
tern depth.
Tire tread
The tread depth should not drop below
0.12 in/3 mm, although, for example, Euro-
pean legislation only specifies a minimum
tread depth of 0.063 in/1.6 mm. At tread
depths below 0.12 in/3 mm, there is an
increased risk of high-speed hydroplaning,
even when only small amounts of water are
present on the road surface.
As winter tires display a noticeable loss in
their ability to cope with cold-weather driv-
ing conditions 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
circumference and are marked on the tire
sidewall with TWI Ð Tread Wear Indicator.
At a tread depth of 0.063 in/1.6 mm these
indicators, signal that the tires have
reached the legally permissible wear limit.
Tire damage
Unusual vibrations encountered dur-
ing normal vehicle operation can indi-
cate tire failure or some other vehicle
defect. This can, for example, be caused by
driving over curbs. These kinds of prob-
lems may also be signaled by other
changes in vehicle response, such as a
strong tendency to pull to the left or right.
Should this occur, respond by immediately
reducing your speed. Proceed carefully to
the nearest BMW Sports Activity Vehicle
Center or professional tire center, or have
the vehicle towed in to have it, its wheels
and tires inspected.
Tire damage, extending to sudden and
complete loss of pressure in extreme
cases, can pose a potentially lethal safety
hazard for the vehicle's occupants and
other road users alike.<
Replacing wheels/tires
Unprofessional attempts by laymen to
service tires can lead to damage and
accidents.
Have this work performed by skilled pro-
fessionals only. All BMW Sports Activity
Vehicle Centers will be happy to help you

Wheels and tires
90 with specialized knowledge and corre-
sponding equipment.<
The correct wheel and tire combination
affects various systems whose function
would otherwise be impaired, e.g. ABS,
DSC or xDrive.
Have the wheel and tire assemblies bal-
anced every time either a wheel or a tire is
replaced.
BMW does not recommend the use of
retreaded tires, as otherwise driving
safety may be reduced. Possible variations
in the design and the age Ð which could be
substantial Ð of the carcasses can lead to
unusually rapid wear.<
The right 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 manufacturing tolerances mean that
even wheels and tires with identical official
size ratings could actually have different
dimensions than the approved units Ð these
differences could lead to body contact, and
with it the risk of severe accidents. If non-
approved wheels and tires are used, BMW
cannot evaluate their suitability, and there-
fore cannot be held liable for driving
safety.<
To maintain good handling and vehicle
response, use only tires of a single tread
configuration from a single manufacturer.
After a flat tire, always remember to have
the specified wheel and tire combination
remounted on the vehicle as soon as pos-
sible.
Recommended tire brands
BMW tests certain tire brands for each tire
size, classifies them as road-safe and
approves them. You can obtain a list of
these from your BMW Sports Activity Vehi-
cle Center. Observe any country-specific
regulations, e.g. on making a correspond-
ing entry in the vehicle documents.
The factory-mounted tires have been spe-
cially selected to provide optimized perfor-mance when installed on your vehicle; if
properly cared for, they will provide a com-
bination of safety and excellent ride com-
fort.
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.
When switching to winter tires, observe the
descriptions at Tire condition and Replac-
ing wheels/tires, refer to page 89.
Observing speed ratings
Never exceed the maximum speed for
which the winter tires are rated.
Unprofessional attempts by laymen to ser-
vice tires can lead to damage and acci-
dents. Have this work performed by skilled
professionals only. The technicians at your
BMW Sports Activity Vehicle Center will be
glad to assist you with the required profes-
sional knowledge and specialized equip-
ment.<
Storage
Store wheels or tires in a cool, dry place,
protecting them against light whenever
possible. Protect the tires against contact
with oil, grease and fuel.
Do not exceed the maximum tire inflation
pressure specified on the side of the tire.
Snow chains*
Do not exceed a vehicle speed of
30 mph/50 km/h with snow chains
mounted.<
Only certain snow chains have been tested
by BMW and classified and approved as
safe. You can obtain a list of these from
your BMW Sports Activity Vehicle Center.
BMW recommends the use of approved
narrow-link snow chains only. These snow
chains are approved exclusively for use on

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summer or winter tires in pairs on the rear
wheels.
Observe the manufacturer's instructions
when installing snow chains.
After mounting snow chains, do not
initialize the Flat Tire Monitor.
When you are driving with snow chains, it
can be beneficial to switch off DSC briefly,
refer to page 51.<

Under the engine hood
92
Under the engine hood
Never attempt to perform any service
or repair operations on your vehicle
without the required professional technical
training. If you are unaware of the regula-
tions that need to be observed, BMW rec-
ommends that you have this work per-
formed at a BMW Sports Activity Vehicle
Center, as otherwise unqualified handling
of parts and materials can lead to safety
risk for vehicle occupants and other road
users.<
Hood
Unlocking
Pull the lever located under the left side of
the instrument cluster.
Opening
Press the release handle and open the
engine hood.
Closing
Let the engine hood fall from approx. 1 ft/
30 cm so that it can be heard to engage.
Observe the same precautions that
apply to all closing operations by
ensuring that the hood's travel range is
clear and unobstructed before allowing the
hood to fall into position.
If you see any signs that the hood is not
completely closed while driving your vehi-
cle, you should stop at once and close it
securely.<

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Engine compartment
1Reservoir for windshield and headlamp
washer system94
2Body ground Ð negative terminal108
3Auxiliary terminal for jump-starting108
4Engine oil filler neck95 5Brake fluid reservoir96
6Dipstick for engine oil94
7Coolant expansion tank96

Under the engine hood
94
Washer fluid
Windshield and headlamp washer
system
Antifreeze agent for the washer sys-
tems is inflammable. For this reason,
keep it away from sources of flame and
store it only in its original containers. Store
it so that it is inaccessible to children.
Always observe the instructions for use
provided on the containers.<
We recommend that you mix the
washer ßuid before adding it to the
reservoir.<
Capacity:
approx. 6.9 US quarts/6.5 liters.
Fill with water and, if required, with an anti-
freeze additive according to manufac-
turer's recommendations.
Engine oil
Indicator lamp
Engine oil pressure
The indicator lamp lights up red:
Stop the vehicle immediately and
switch off the engine. Check the
engine oil level; top up as required. If the oil
level is correct: contact the nearest BMW
Sports Activity Vehicle Center.
Do not continue driving. The engine
could be damaged because of inade-
quate lubrication.<
Engine oil level
The indicator lamp lights up yellow
while driving:
The oil level is at the absolute mini-
mum. Add engine oil as soon as possible.
Until then, do not drive more than
approx. 30 miles/50 km.
The indicator lamp lights up yellow
after the engine is switched off:
Top up engine oil at the earliest
opportunity Ð when refueling.
Engine oil sensor
The indicator lamp lights up yellow
within 20 seconds after starting the
engine:
The oil level sensor is defective. Please
have it checked by a BMW Sports Activity
Vehicle Center.
Checking oil level
1.Park the vehicle on a level surface
2.Switch the engine off after it has
reached normal operating temperature
3.After approx. 5 minutes, pull the dip-
stick out and wipe it off with a clean lint-
free cloth, paper towel, or similar mate-
rial
4.Carefully push the dipstick all the way
into the guide tube and pull it out again
5.The oil should extend to between the
two marks on the dipstick.
As is the case with fuel economy, the rate
at which the engine uses oil is strongly
influenced by driving style and operating
conditions.
The oil quantity between the two marks of
the dipstick is approx. 1.1 US quarts/1 liter.

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Do not fill beyond the upper mark on the
dipstick. Excess oil can damage the
engine.
Adding engine oil
While you should wait until the level has
dropped to just above the lower mark
before adding oil, you should never allow
the oil level to fall below this mark.
BMW engines are designed to oper-
ate without additives, and their use
could even lead to damage in some cases.
This also applies to the manual transmis-
sion, automatic transmission, the differen-
tial and the power steering system.<
Recommendation: have the oil change
conducted by your BMW Sports Activity
Vehicle Center.
Continuous exposure to used oil has
caused cancer in laboratory testing.
For this reason, any skin areas that come
into contact with oil should be thoroughly
washed with soap and water.
Always store oils, grease and similar mate-
rials so that they are inaccessible to chil-
dren. Comply with warning labels and
information on containers.<
Always observe all applicable rules
and regulations for environmental
protection when disposing of used oil.<
Approved engine oils
The quality of the engine oil selected has
critical significance for the operation and
service life of an engine. Based on exten-
sive testing, BMW has approved only cer-
tain engine oils.
Use only approved BMW High Perfor-
mance Synthetic Oil.If you are unable to obtain BMW High Per-
formance Synthetic Oil, you can add small
amounts of another synthetic oil between
oil changes. Use only oils with the API SH
specification or higher.
Ask your BMW Sports Activity Vehicle
Center for details concerning the spe-
cific BMW High Performance Synthetic Oil
or synthetic oils which have been
approved.<
You can also call BMW of North America at
1-800-831-1117 or visit this website:
www.bmwusa.com to obtain this informa-
tion.
Viscosity ratings
Viscosity is the oil flow rating as defined in
SAE classes.
The selection of the correct SAE class
depends on the climate conditions in the
area where you typically drive your BMW.
Approved oils are in SAE classes
5W-40 and 5W-30.<
>These oils may be used for driving in all
ambient temperatures.
Coolant
Indicator lamp
The indicator lamp lights up:
Coolant level is too low; top up at
the earliest opportunity.
Do not add coolant to the cooling sys-
tem when the engine is hot. Escaping
coolant can cause burns.
Antifreeze and anticorrosion agents are
hazardous to health. You should always
store them in their original containers and
in a location which is inaccessible to chil-
dren. Antifreeze and anticorrosion agents
are flammable. Therefore, do not pour over
hot engine parts, as otherwise they could
catch fire and cause burns. Always observe
the instructions for use provided on the
containers.<

Under the engine hood
96
Checking coolant level and topping
up coolant
Check the coolant level with the engine
cold, approx. 687/206:
1.Turn the cap of the expansion tank
counterclockwise to allow any accumu-
lated pressure to escape, then continue
turning to open
2.The coolant level is correct if the upper
end of the red float bar is at least at the
same height as the top edge of the filler
neck, refer to arrow. The bar end may
only protrude by a maximum of i in/
2 cm, i.e. up to the second mark on the
float bar, refer also to sketch beside the
filler neck
3.If necessary, add coolant. Slowly add
coolant until the correct level is reached
Ð do not overfill.
Always observe all applicable rules
and regulations for environmental
protection when disposing of used anti-
freeze and anticorrosion agents.<
Brake system
Malfunction
Brake fluid
The warning lamp lights up red
despite the handbrake being
released: stop immediately.
The brake fluid in the reservoir has fallen to
below the minimum level. At the same time,
a considerably longer brake pedal travel
may be noticeable. Contact the nearest
BMW Sports Activity Vehicle Center.During continued driving increased
brake pedal pressure may be neces-
sary, and considerably longer braking dis-
tances may result. Please adapt your driv-
ing style accordingly.<
Warning lamp for Canadian models.
Brake pads
The indicator lamp comes on.
The brake pads have reached their
minimum pad thickness. See your
BMW Sports Activity Vehicle Center imme-
diately to have the pads replaced.
For your own safety: use only brake
pads that BMW has released for your
particular vehicle model. As BMW cannot
assess the suitability of other brake pads
for use on your vehicle, we are unable to
assume continued responsibility for the
vehicle's operating safety if non-approved
pads are installed.<
For additional information on the brake sys-
tem, refer to page 77.

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97
Maintenance
The BMW maintenance
system
The BMW maintenance system is designed
in such a way that it reliably ensures the
road safety and operating reliability of the
vehicle Ð keeping the cost for you as low as
possible.
Regular maintenance is not only required
for the safety of the vehicle, it also
improves the resale value.
Service Interval Display
The BMW Maintenance System takes the
driving conditions of the vehicle into
account when determining service inter-
vals:
From the point of view of maintenance,
62,000 miles/100,000 km accumulated in
short-distance urban driving are not the
equivalent of the same distance covered at
moderate speeds in long-distance high-
way travel.
The BMW maintenance system is divided
into engine oil service as well as Inspec-
tions I and II.
Determining the maintenance intervals
according to the actual loads on the vehi-
cle covers every kind of operating situa-
tion. However, even those who drive only
short distances Ð significantly less than
6,200 miles/10,000 km annually Ð should
have the engine oil changed at least every
2 years since oil deteriorates over time,
regardless of use.Brake fluid is hygroscopic: it absorbs
moisture from the atmosphere over
the course of time. To ensure that the brake
system continues to provide safe and reli-
able performance, remember to have the
brake fluid changed every two years at the
latest by a BMW Sports Activity Vehicle
Center, also refer to page 46 and to the
Service and Warranty Information Booklet
for US models or the Warranty and Service
Guide Booklet for Canadian models.<
Service and Warranty Information
Booklet for US models/Warranty and
Service Guide Booklet for Canadian
models
For detailed information on required main-
tenance items and the work involved,
please refer to the Service and Warranty
Information Booklet for US models or to the
Warranty and Service Guide Booklet for
Canadian models.
Depending on operating conditions, it may
be advisable to have the body checked for
damage from rocks or gravel as a precau-
tion against corrosion.
BMW recommends that you have
your BMW Sports Activity Vehicle
Center perform the maintenance and
repair.
Check that the maintenance work is
recorded in the Service and Warranty
Information Booklet for US models or the
Warranty and Service Guide Booklet for
Canadian models. These entries will serve
as proof that the vehicle has received reg-
ular maintenance.<
Care
For all information on this subject, refer to
the Caring for your vehicle brochure.

Laws and regulations
98
Laws and regulations
California Proposition 65
Warning
California laws require us to state the fol-
lowing warning:
Engine exhaust and a wide variety of
automobile components and parts,
including components found in the interior
furnishings in a vehicle, contain or emit
chemicals known to the State of California
to cause cancer and birth defects and
reproductive harm. In addition, certain flu-
ids contained in vehicles and certain prod-
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm. Battery posts, terminals
and related accessories contain lead and
lead compounds. Wash your hands after
handling. Used engine oil contains chemi-
cals that have caused cancer in laboratory
animals. Always protect your skin by wash-
ing thoroughly with soap and water.<
OBD connector
The interface socket for the Onboard Diag-
nostic is located on the left of the driver's
side at the bottom of the instrument cluster
and under a cover. The cover has the let-
ters OBD on it.
The most important components for the
composition of the emissions can be
checked by a device across this interface. If the Service Engine Soon indicator
lamp comes on either continuously
or intermittently, this indicates a
fault in the emissions-related electronic
systems. Although the vehicle remains
operational, you should have the systems
checked by your BMW Sports Activity
Vehicle Center at the earliest possible
opportunity.
The illuminated indicator lamp informs you
of the need for service, not that you need to
stop the vehicle. However, the systems
should be checked by your BMW Sports
Activity Vehicle Center at the next opportu-
nity.
If the indicator lamp blinks or flashes, this
indicates a high level of engine misfire.
Reduce speed and contact the nearest
BMW Sports Activity Vehicle Center imme-
diately. Severe engine misfiring over even a
short period of time can seriously damage
emission control system components,
especially the catalytic converter.
Service Engine Soon indicator lamp
for Canadian models.
If the fuel filler cap is not on tight
enough, the OBD system can detect
leaking vapor and the indicator lamp will
light up. If the fuel filler cap is then tight-
ened, the indicator lamp will usually go out
after a short period of time.<