check engine light BMW X3 3.0SI 2008 User Guide

Under the hood
102
Engine oil
Engine oil consumption depends on driving
style and operating conditions.
Warning lamp
Engine oil pressure
The warning lamp lights up red:
The engine oil pressure is too low.
Stop the vehicle immediately and
switch off the engine. Check the engine oil level
and top off as needed. If the oil level is correct:
Have the system checked immediately.
Do not continue driving. The engine could
be damaged because of inadequate lubri-
cation.<
Engine oil level
The warning lamp lights up yellow dur-
ing driving. An acoustic signal also
sounds and "+1.0 " is displayed in the
instrument cluster, refer to page102.
The oil level is at its absolute minimum; top off
engine oil as soon as possible. Until then, do not
drive more than approx. 125 miles/200 km.
The warning lamp lights up yellow after
the engine is switched off. In addition, a
signal sounds.
Top off engine oil at the earliest opportunity,
e.g. with your next refueling.
The warning lamp lights up yellow
within 30 seconds after starting the
engine:
The oil level sensor has failed. It is not possible
to take a current or meaningful measurement.
Have the system checked as soon as possible.
Checking oil level
Your vehicle is equipped with an electronic oil
level control.
For the most precise possible display of the oil
level, the engine must be at operating tempera-
ture, i.e. after at least 6.5 miles/10 km of unin-
terrupted driving. You can have the oil level dis-
played while you drive or while the vehicle is standing on a flat surface with the engine run-
ning.
You can have the current oil level displayed in
the instrument cluster.
Press button1. The oil level is checked and dis-
played for approx. 15 seconds.
In order to cancel the display early, press but-
ton 1 again.
Possible displays
1Oil level OK
2Oil level is being detected
This process can last approx. 3 minutes
while standing on a flat surface and approx.
5 minutes while driving.

Reference
At a glance
Controls
Driving tips
Mobility
103
3Oil level at minimum
A t y o u r e a rl ie s t o p p ortunity, add 1 US quart/
1 l i t e r e n g i n e o i l , a l s o r e f e r t o A d d i n g e n g i n e
oil.
4Oil level too high
Have vehicle checked immediately;
otherwise, overfilled oil can lead to
engine damage.<
5Oil level sensor has failed
It is not possible to take a current or mean-
ingful measurement.
Do not add engine oil. It is possible to con-
tinue driving. Have the system checked as
soon as possible.
Adding engine oil
Add the maximum quantity of 1 US quart/1 liter
of oil only after the warning lamp in the instru-
ment cluster lights up, refer to page102, or
when the oil level measurement "+1.0 " appears
on the display.
Add oil within the next 125 miles/200 km;
otherwise, engine damage could result.<
Keep oil, grease, etc. out of reach of chil-
dren and heed warnings on the contain-
ers. Otherwise, you could endanger your
health.<
Oil change
Have the oil changed only by your BMW Sports
Activity Vehicle Center or a workshop that
works according to BMW repair procedures
with correspondingly trained personnel.
Approved engine oils
The quality of the engine oil selected has critical
significance for the operation and service life of
an engine. BMW continuously approves spe-
cific oils after confirming their suitability for use
in its vehicles with extensive testing.
Only use approved BMW High Performance
Synthetic Oil.
If you are unable to obtain BMW High Perfor-
mance Synthetic Oil, you can add small
amounts of another synthetic oil in between oil
changes. Only use oils with the API SH specifi-
cation or higher.
Ask your BMW Sports Activity Vehicle
Center for more details concerning BMW
High Performance Synthetic Oil or other
approved synthetic oils.<
You can also call BMW of North America at
1-800-831-1117 or visit the website
www.bmwusa.com to obtain this information.
BMW engines are designed to operate
without additives, and their use could
even lead to damage in some cases.<
Viscosity classes
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 belong to SAE classes
5W-40 and 5W-30.<
These oils can be used for driving in all ambient
temperatures.

Under the hood
104
Coolant
Warning lamp
The warning lamp lights up: coolant
level is too low; top off at the next
opportunity.
Do not open the cooling system when the
engine is hot. Escaping coolant can cause
burns.<
Coolant consists of water and coolant additive.
Not all commercially available additives are suit-
able for your BMW. Ask your BMW Sports
Activity Vehicle Center for suitable additives.
Only use suitable additives; otherwise,
engine damage may result. The additives
are harmful to your health, so follow the instruc-
tions on the containers.<
Always observe all applicable environ-
mental laws and regulations when dis-
posing of used coolant additives.<
Checking coolant level
1.Allow engine to cool.
2.Turn the cap of the expansion tank counter-
clockwise to allow any accumulated pres-
sure to escape, then continue turning to
open.
3.The coolant level is correct when it is
between the MIN and MAX marks, also refer
to illustration next to filler neck.
4.If the coolant is low, slowly add coolant up to
the specified level – do not overfill.
5.Screw on the cap and tighten snugly.
6.Have the reason for the coolant loss cor-
rected as soon as possible.
Brake system
Malfunction
Brake fluid
The warning lamp lights up red despite
the handbrake being released.
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. Have the system checked
immediately.
During continued driving, increased brake
pedal travel may be necessary, and con-
siderably longer braking distances may result.
Please adapt your driving style accordingly.<
Display of the previously described
malfunction on Canadian models.

Maintenance
106
Emissions values
The warning lamp lights up. Exhaust
values are deteriorating. Have the vehi-
cle checked as soon as possible.
Under certain conditions, the indicator will flash.
This indicates a serious rate of engine misfire.
When this occurs, you should reduce speed
and consult the nearest BMW Sports Activity
Vehicle Center as soon as possible. Severe
engine misfire even for only a short period of
time can seriously damage emission control
components, especially the catalytic converter.
Display of the previously described
malfunction on Canadian models.
When the fuel filler cap is not properly
tightened, the OBD system can detect
the vapor leak and the indicator lamp will light
up. If the filler cap is subsequently tightened,
the indicator lamp should go out within a few
days.<
Event data recorders
Your vehicle may be equipped with one or more
sensing and diagnostic modules or a recording
device capable of recording or transmitting cer-
tain vehicle data or information. In addition, if
you have a Subscription Service Agreement for
the BMW Assist system, certain vehicle infor-
mation may be transmitted or recorded in order
to provide such services.
Care
You can find useful information on caring for
your BMW in the Caring for your vehicle bro-
chure.

Replacing components
114 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 page117.
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.

Giving and receiving assistance
118
Starting engine
1.Start the engine of the assisting vehicle and
let it run at a slightly elevated idling speed
for a few minutes.
2.Start the engine on the other vehicle in the
usual way.
If the first start attempt is not successful,
wait a few minutes before another attempt
in order to allow the discharged battery to
recharge.
3.Let the engines run for a few minutes.
4.Disconnect the jumper cables by reversing
the connection sequence.
If need be, have the battery checked and
recharged.
Never use spray fluids to start the
engine.<
Tow starting and towing
Obey all applicable laws and guidelines
for tow starting and towing.<
Do not allow any passengers other than
the driver to ride in a vehicle that is being
towed.<
Using tow fitting
The threaded tow fitting is stored in the
onboard tool kit, refer to page107, and must
always remain in the vehicle. It can be screwed
in at the front or rear of the BMW.
Only use the tow fitting that comes with
the vehicle and screw it in as far as it will
go. Use the tow fitting only for towing on roads.
Avoid lateral loading of the tow fitting, e.g. do
not lift the vehicle by the tow fitting. Otherwise,
the tow fitting and the vehicle can be dam-
aged.<
Access to screw thread
Front
Push the cover in the bumper out of the recess
with a screwdriver.
Rear
Press on the mark provided on the cover.
Being towed
Make sure that the ignition key is in posi-
tion 1; otherwise, the steering lock will
engage, making it impossible to steer the vehi-
cle. There is no power assist with the engine
switched off. It is therefore necessary to exert
increased effort for braking and steering.<
Switch on the hazard warning flashers depend-
ing on the local regulations. If the electrical sys-
tem fails, mark the vehicle to be towed, e.g. with
a sign or warning triangle in the rear window.
Manual transmission
Gearshift lever in neutral.
Automatic transmission
Selector lever in position N.
Changing selector lever positions, refer to
page40.
Do not exceed a towing speed of
45 mph/70 km/h and a towing distance
of 90 miles/150 km; otherwise, the automatic
transmission may be damaged.<

Reference
At a glance
Controls
Driving tips
Mobility
119
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 the X3 with only the front or
rear axle raised; otherwise, the wheels
could lock and the transfer case could be dam-
aged.<
Have the X3 transported only on a flat bed.
Tow starting
If possible, do not tow start the vehicle; jump
start the engine instead, refer to page117.
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.<

Everything from A to Z
128 Charge-current indicator
lamp12,114
Check Gas Cap, warning
lamp12,92
Child's seats, refer to Child
restraint systems35
Child restraint fixing system
LATCH36
Child restraint systems35
– installing35
– with tether strap36
Child-safety locks37
Child seat security35
Chock112
Chrome parts, care, refer to
Caring for your vehicle
brochure
Cigarette lighter74
Circulation of air, refer to
Recirculated-air
mode64,68
Cleaning, vehicle, refer to
Caring for your vehicle
brochure
Cleaning rear window43
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/tire98
Compact wheel, wheel
changes112
Compartments, refer to
Storage compartments73
Compartments in cargo area,
refer to Behind side trim
panel78Compass, 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
vehicle19,21
Connecting 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
Coolant104
– level104
– temperature gauge47
– warning lamp104
Cooling, refer to
Temperature64,67
Copyright2
Correct wheels and tires98
Courtesy lamps61
Cruise control44
– buttons on steering
wheel13
– indicator lamp44
Cruising range49
Cup holders72
Curb weight, refer to
Weights124
Cylinders, refer to Engine
data122
D
Dashboard lighting, refer to
Instrument lighting61
Dashboard system, refer to
Cockpit10
Data, technical122
– dimensions123
– engine122
– filling capacities124
– weights124
Daytime running lamps59
Deactivating front passenger
airbags35,57
Defective 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
Dimensions123
Dimming mirror34
Directional indicators, refer to
Turn signals41
Disk brakes85
Displacement, refer to Engine
data122
Display illumination, refer to
Instrument lighting61
Display lighting, refer to
instrument lighting61
Displays, refer to Instrument
cluster11
Disposal, vehicle battery114
Disposal of the vehicle, refer
to Caring for your vehicle
brochure
Distance warning, refer to
PDC Park Distance
Control50
Door exit lighting61
Door handle lighting59