2004 BMW X3 3.0I engine

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.<

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4.Apply the lamp base with the lower
edge to the bracket and press it in until
the lamp base locks in place.
Make sure that the cover does not fall
into the engine compartment, as oth-
erwise the vehicle can be damaged or
other road users can be endangered.<
Front passenger side
Before replacing the bulb, remove the res-
ervoir for the windshield washing system
from the bracket. To do so, loosen the bolt,
refer to arrow, and place the reservoir to
one side.
Bear in mind that the windshield
washing system reservoir is heavy. If
you do not, injuries or damage to the vehi-
cle can occur.<
For bulb replacement procedure, refer to
Driver's side.
Xenon lamps*
The service life of these bulbs is very long
and the probability of a failure is very low,
provided that they are not switched on and
off an unusual number of times. If one of
these bulbs should nevertheless fail, it is
possible to continue driving with great cau-
tion using the fog lamps, provided traffic
laws in your area do not prohibit this.
To avoid risk of potentially fatal inju-
ries: owing to the extremely high volt-
ages at which these units operate, service
work should always be entrusted to quali-
fied personnel.<
Parking and standing lamps
5 Watt bulb
In case of a defect, please contact your
BMW Sports Activity Vehicle Center.
Turn signal indicator, front
21 Watt bulb
Access to the turn signal indicator is at the
edge of the lamp unit, refer to arrow.
Make sure that the lamp base does
not fall into the engine compartment,
as otherwise the vehicle can be damaged
or other road users can be endangered.<
1.Turn the lamp base and remove it
2.Replace the bulb
3.Insert the lamp base. If it does not snap
in place immediately, turn the lamp
base until it does.
Side-mounted turn signal indicators
5 Watt bulb
1.Use finger pressure against the rear
end of the lamp, refer to arrow, to press
it forward for removal
2.Apply gentle pressure to the bulb while
turning it to the left and pull it out
3.Install in the opposite order.

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Tailgate lamp
5 Watt bulb
1.Pull off the bulb holder
2.Replace the bulb.
Light-emitting diodes LEDs
Light-emitting diodes installed behind
translucent lenses serve as the light source
for many of the controls and displays in
your vehicle. These light-emitting diodes,
which operate using a concept similar to
that applied in conventional lasers, are offi-
cially designated as Class 1 light-emitting
diodes.
Do not remove the covers, and never
stare into the unfiltered light for sev-
eral 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
setting of the wheels. Set the handbrake
and engage first gear, reverse gear or
selector-lever position P.
All passengers should be outside the vehi-
cle 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 vehicle. Comply with all safety guidelines and regulations.
Change the wheel only on a level, firm sur-
face 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 sur-
face 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-car-
rying 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 page 72.
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 posi-
tion when you are through using them.
Compact wheel
The compact wheel is located under the
cargo area on the floor of the vehicle.

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Mounting compact 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 turning at
least two lug bolts into opposite bolt
holes
4.Screw in the remaining lug bolts.
Tighten all the bolts securely in a diag-
onal pattern
5.Lower the jack and remove it from
beneath the vehicle
6.Tighten the lug bolts in a diagonal pat-
tern
7.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.<
After mounting the compact wheel or cor-
recting the inflation pressure, reinitialize
the Flat Tire Monitor, refer to page 53.
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.
To ensure safety, always have the lug bolts
checked with a calibrated torque wrench to
ensure that they are tightened to the spec-
ified torque of 101 lb ft/140 Nm as soon as
possible.<
Stow the defective wheel in the luggage
compartment.
When you mount wheels other than Genu-
ine BMW light-alloy wheels, different lug
bolts may also be required.
Replace the defective tire as soon as pos-
sible and have the new wheel/tire bal-
anced.
Driving with the compact wheel
Drive reservedly and do not exceed a
speed of 50 mph/80 km/h. Do not
deactivate DSC, as otherwise unstable
driving conditions 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 pro-
nounced.
Only one compact wheel may be
mounted. You should re-equipping to
wheels and tires of the original size as
quickly as possible.<
Battery
Battery care
The battery is 100% maintenance-free, i.e.,
the electrolyte will last for the life of the bat-
tery when the vehicle is operated in a tem-
perate climate.
Please contact your BMW Sports
Activity Vehicle Center with any ques-
tions concerning the battery.<
Do not disconnect the battery when
the engine is running. If you do so, the
ensuing voltage surge will damage the
vehicle's onboard electronics.<
Indicator lamp
The battery charge-current indica-
tor lamp lights up:
The battery is no longer being
charged. There is a defect on the alternator
V-belt or charge current circuit of the alter-
nator. Contact the nearest BMW Sports
Activity Vehicle Center.
Do not continue driving if the V-belt is
defective. The engine could be dam-
aged due to overheating.
Moreover, an increased amount of force is
required for steering if the onboard supply
voltage falls dramatically.<