check engine light BMW X3 3.0SI 2008 Owners Manual

Cockpit
12
Indicator and warning lamps
Technology that monitors itself
Indicator and warning lamps that are identified
with
+ are checked for proper function each
time you turn the ignition key. They each light
up once for different periods of time.
When a malfunction occurs in a monitored sys-
tem, the corresponding lamp will either fail to go
o u t w h e n t h e e n g i n e i s s t a r t e d , o r i t w i l l c o m e o n
again during normal driving. Detailed informa-
tion is provided on the specified pages.
Battery charge current
+114
Headlamp flasher41
High beams60
Engine oil
+102
Driving stability control systems/
ABS Antilock Brake System
+51
ABS Antilock Brake System/chassis
control system for Canadian models
Brake system
+
With handbrake released53, 104
With handbrake engaged39
With other warning lamps53
Brake warning lamp for Canadian
models
Brake pads
+85
Please fasten safety belt
+32
Airbags
+57
Front fog lamps61
Automatic transmission +40
Turn signals41
DSC Dynamic Stability Control/
xDrive
+ 51, 52
Dynamic Traction Control DTC
+52
Service Engine Soon
+106
Service Engine Soon warning lamp for
Canadian models.
Check Gas Cap
* +92
Engine electronics
+38
Topping off washer fluid43
Coolant low104
Flat Tire Monitor
* +54
Tire Pressure Monitor
* +55
Lamp defective59
Cruise control44
With ignition key in position 2, this
warning lamp indicates that a door
or the liftgate is open.

Driving
38
Driving
Ignition lock
0Steering locked
1Steering unlocked
2Ignition switched on
3Starting engine
Steering locked
T h e k e y c a n b e in s e r t e d o r r e m o v e d in t h i s p o s i-
tion only.
After removing the key, turn the steering wheel
slightly to the left or right until you hear the lock
engage.
Interlock with automatic transmission
The key can only be turned back to position0 or
removed if the selector lever is in position P:
interlock.
Steering unlocked
A slight steering wheel movement often makes
it easier to turn the key from0 to1.
Some power accessories are ready for opera-
tion.
Ignition switched on
All vehicle systems are ready for operation.
Starting engine
Do not run the engine in enclosed spaces;
otherwise, inhalation of toxic exhaust
gases can cause unconsciousness and death.
The exhaust gases contain carbon monoxide,
an odorless and colorless, but highly toxic gas.
Do not leave the vehicle unattended with the
engine running, since an unattended vehicle
with a running engine is a safety hazard.
To prevent the vehicle from rolling, always shift
into neutral or selector lever position P and
engage the handbrake firmly before leaving the
vehicle with the engine running.<
Do not discontinue the starting procedure pre-
maturely, but also do not prolong it for more
than 20 seconds. Release the ignition key
immediately as soon as the engine starts.
When starting the engine, do not press the
accelerator pedal.
Do not allow the engine to warm up while
parked; instead, start driving immediately at a
moderate engine speed.
Indicator lamps
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 mal-
function on Canadian models.
The warning lamp lights up. Malfunc-
tion in the engine electronics. You can
continue to drive with reduced engine

Reference
At a glance
Controls
Driving tips
Mobility
39
output or speed. Have the system checked
immediately.
Manual transmission
1.Step on the brake.
2.Depress the clutch pedal and shift into neu-
tral.
If the clutch pedal is not depressed,
the motor will not start.<
3.Start the engine.
Automatic transmission*
1.Step on the brake.
2.Move selector lever into position P.
3.Start the engine.
Special starting conditions
In the following situations, press the accelerator
pedal halfway down while starting:
>If the engine fails to start on the first
attempt, for instance if it is very hot or cold.
>When starting the engine at very low tem-
peratures, e.g. below approx. +57/–156,
at high altitudes over approx. 3,300 ft/
1,000 m.
Avoid frequent starting in quick succes-
sion or repeated start attempts in which
the engine does not start. Otherwise, the fuel is
either not burned or inadequately burned and
there is a danger of overheating and damaging
the catalytic converter.<
Switching off engine
Do not remove the ignition key when the
vehicle is rolling; otherwise, the steering
wheel lock would engage, preventing you from
steering.
When leaving the vehicle, remove the ignition
key and lock the steering. To prevent the vehi-
cle from rolling, engage the parking brake firmly
when parking.<
Manual transmission
1.Engage the parking brake firmly.
2.Turn the ignition key to position 1 or 0.
3.Shift into first gear or reverse.
Automatic transmission*
1.With the vehicle at a stop, move the selector
lever into position P.
2.Turn the ignition key to position 1 or 0.
3.Engage the parking brake firmly.
Handbrake
The handbrake is primarily intended to prevent
the vehicle from rolling while parked; it brakes
the rear wheels.
Indicator lamp
The indicator lamp lights up; an acous-
tic signal also sounds when you begin
to drive. The handbrake is still engaged.
Indicator lamp for Canadian models.
Engaging
The lever engages automatically when you pull
up on it.
Releasing
Pull up slightly on the lever, press the button
and lower the lever.
If exceptional circumstances should
make it necessary to engage the hand-
brake while the vehicle is in motion, do not

Reference
At a glance
Controls
Driving tips
Mobility
51
Malfunction
The LED in the button flashes and a short con-
tinuous tone sounds. PDC is malfunctioning.
Switch off PDC. Have the system checked.
To prevent this problem, keep the sensors
clean and free of ice or snow in order to ensure
that they will continue to operate effectively.
When using high-pressure washers, do not
spray sensors for long periods and keep the
sprayer at least 4 in/10 cm away from the sen-
sors.
System limits
Even with PDC, final responsibility for
estimating the distance between the
vehicle and any obstructions always remains
with the driver. Even when sensors are involved,
there is a blind spot in which objects cannot be
detected. The system is also subject to the
physical limits that apply to all forms of ultra-
sonic measurement, such as those encoun-
tered with tow bars and trailer couplings, or thin
and wedge-shaped objects. Low objects
already displayed, e.g. curb edges, can come
into the blind spot of the sensors before or after
a continuous tone sounds. The system may fail
to detect higher obstacles such as projections
from walls.
Loud sources of sound, inside and outside the
vehicle, could drown out the PDC signal tone.<
Driving stability control
systems
Your BMW is equipped with an extended array
of systems designed to enhance and maintain
vehicle stability even under unfavorable driving
conditions.
ABS Antilock Brake System
ABS prevents the wheels from locking during
braking. Safe steering response is maintained
even during full braking. This results in an
increase in the active safety.
ABS is operational every time you start the
engine. Safe braking, refer to page84.
Electronic brake-force distribution
The system controls the brake pressure in the
rear wheels to ensure a stable braking behavior.
Brake assistant
When the brake pedal is depressed quickly, this
system automatically generates a maximum
braking force distribution and thus helps keep
the braking distance to a minimum during full
braking. This system exploits all of the benefits
provided by ABS.
As long as you want full braking to continue, do
not reduce pressure on the brake.
DSC Dynamic Stability Control
DSC prevents slip at the drive wheels when
starting off and accelerating. The system also
detects unstable driving conditions, such as a
fishtailing of the vehicle's rear end or the sliding
of the vehicle on its front wheels. In these cir-
cumstances, DSC helps keep the vehicle on a
safe path, within physical limits, by reducing
engine output and by applying the brakes in
individual wheels.
The laws of physics cannot be repealed,
even with DSC. An appropriate driving
style always remains the responsibility of the
driver. Do not squander the additional margin of
safety by driving dangerously; otherwise, you
run the risk of causing an accident.<
Deactivating DSC
Maintain pressure on the button until the DSC
indicator lamp lights up, but do not press for
longer than approx. 10 seconds. DTC Dynamic
Traction Control and DSC are deactivated

Technology for comfort, convenience and safety
54 After releasing the brake, start driving immedi-
ately; otherwise, the acceleration assistant will
no longer hold the vehicle after approx. 2 sec-
onds and the vehicle will start to roll back-
ward.<
Malfunction
The warning lamp for the brake system
lights up in yellow. The acceleration
assistant has failed. The vehicle will not
be held after the brake is released. Have the
system checked as soon as possible.
Flat Tire Monitor FTM*
The concept
The Flat Tire Monitor keeps track of the infla-
tion pressures in the four mounted tires as you
drive. The system triggers an alert whenever
the inflation pressure in one tire drops signifi-
cantly in relation to the pressure in another tire.
When a loss of pressure occurs, the rolling
radius changes and with it, the rotational speed
of the wheels. This change is detected and sig-
naled as a flat tire.
Functional requirement
To ensure the reliable signaling of a flat tire, the
system must be initialized at the correct tire
inflation pressure.
The initialization must be carried out after
each correction of the tire inflation pres-
sure and after every tire or wheel change.<
System limits
The Flat Tire Monitor cannot predict sud-
den severe tire damage caused by out-
side factors and does not detect a natural, even
pressure drop in all four tires.<
In the following situations, the system could be
delayed or malfunction:
>When the system has not been initialized
>When driving on snow-covered or slippery
road surfaces>Sporty driving style: slip in the drive wheels,
high lateral acceleration
>When driving with snow chains
*
When driving with a compact wheel, the Flat
Tire Monitor cannot operate.
Initializing system
The initialization is completed while driv-
ing and can be interrupted at any time.
The initialization automatically continues when
driving resumes.
Do not initialize the system when driving with
snow chains
* or with a compact wheel.<
1.Start the engine just before driving, but do
not begin to drive.
2.Press the button for at least 4 seconds, but
not longer than 2 minutes. After the button
is released, the indicator lamp in the instru-
ment cluster lights up yellow for a few sec-
onds.
3.Begin driving.
The initialization is completed while driving,
without requiring any further input from you.
Indication of a flat tire
The warning lamp lights up red. In addi-
tion, an acoustic signal sounds. 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.<

Reference
At a glance
Controls
Driving tips
Mobility
55
3.Replace the damaged wheel, refer to
Wheel changes on page111.
Malfunction
The warning lamp lights up yellow. The
Flat Tire Monitor is malfunctioning or
out of order. Have the system checked
as soon as possible.
TPM Tire Pressure Monitor*
The concept
TPM controls the tire inflation pressure in the
four mounted wheels. The system notifies you
if the tire inflation pressure has fallen signifi-
cantly in one or more tires.
Functional requirement
To ensure the reliable signaling of a flat tire, the
system must be reset at the correct tire inflation
pressure.
Always use wheels equipped with TPM elec-
tronics, including a metal valve; otherwise, there
is no guarantee that the system will function
properly.
The system must be reset after every cor-
rection of tire inflation pressure and after
every tire or wheel change.<
System limits
TPM cannot warn you of sudden, serious
tire damage due to external factors.<
The system does not function properly if it has
not been reset, e.g. it may identify a tire as flat in
spite of the fact that the tire is filled to the cor-
rect inflation pressure.
The system is deactivated and is unable to
detect flat tires if a wheel not equipped with
TPM electronics has been mounted, e.g. a
compact wheel, or if TPM is experiencing tem-
porary interference from other systems or
devices that use the same frequency.
Resetting system
The system must be reset after every cor-
rection of tire inflation pressure and after
every tire or wheel change.<
1.Start engine, but do not begin to drive.
2.Press the button until the yellow warning
lamp in the instrument cluster lights up for a
few seconds.
3.Begin driving.
After a few minutes of driving, the tire infla-
tion pressures in the tires are adopted as
the desired values to be monitored. The
resetting is completed during driving and
can be interrupted at any time without
requiring any input from you. The resetting
automatically continues when driving
resumes.
Low tire pressure message
The warning lamp lights up yellow. In
addition, a signal sounds. You have a
flat tire or a significant loss of tire pres-
sure in one or more tires.
1.Reduce speed and stop the vehicle care-
fully. Avoid sudden braking and steering
maneuvers.
2.Identify the damaged wheel or wheels.
If identification is not possible, con-
tact your BMW Sports Activity Vehi-
cle Center.<
3.Replace the damaged wheel, refer to
Wheel changes on page111.
4.Check tire inflation pressure and correct as
needed.

Lamps
60
Automatic headlamp control*
In switch position3, the low beams are
switched on or off automatically, for example in
tunnels, at dawn and dusk, and in the event of
precipitation. The Adaptive Head Light
* is acti-
vated.
When you enter a tunnel with bright ceiling
lighting, this can delay the switching on of your
low beams.
The headlamps can also come on when the sun
is low on the horizon in a blue sky.
The low beams remain switched on
regardless of the ambient light when you
switch on the front fog lamps
*.
When the daytime running lamps are activated,
refer to page59, the low beam headlamps are
always switched on when the switch is in
position3 and the ignition is switched on.<
If so desired, the light switch can remain in
position3. The exterior lamps are automatically
switched off after the ignition is switched off.
Automatic headlamp control cannot
serve as a substitute for the driver's judg-
ment in determining when the vehicle lamps
should be switched on. For example, the sys-
tem cannot detect fog or hazy weather. To
avoid safety risks, you should always switch on
the low beams manually under these condi-
tions.<
You can have the sensitivity of the head-
lamp control adjusted.<
Adaptive Head Light*
The concept
Adaptive Head Light is a variable headlamp
control system that enables better illumination
of the road surface. Depending on the steering
angle and other parameters, the light from the
headlamp follows the course of the road.
In tight curves, e.g. serpentines, or when mak-
ing turns, up to a speed of approx. 43 mph/
70 km/h, a turning lamp is switched on and illu-
minates the inside of the curve.
Activating Adaptive Head Light
With the ignition on, turn the light switch to the
Automatic headlamp control position, refer to
page59.
The turning lamp is switched on automatically
depending on the steering angle or the turn sig-
nal position.
In order not to blind oncoming traffic, the Adap-
tive Head Light points toward the passenger
side when the vehicle is stopped. When driving
in reverse, only the turning lamp is active and
lights up the region on the outside of the curve.
Malfunction
The LED next to the symbol for automatic head-
lamp control flashes. Adaptive Head Light is
malfunctioning or has failed. Have the system
checked as soon as possible.
High beams/
roadside parking lamps
1High beams
2Headlamp flasher
3Roadside parking lamps
Roadside parking lamps, left or right*
You also have the option of lighting up just one
side of your vehicle when parking. When doing
so, be sure to comply with national regulations.
After switching off the engine, press the lever
up or down past the resistance point, arrow 3.
The roadside parking lamps drain the bat-
tery. For this reason, avoid using them for
extended periods; otherwise, it may no longer
be possible to start the engine.<

Practical interior accessories
70 The corresponding memory button1 is now
programmed with the signal of the original
hand-held transmitter.
You can use the system when the engine is run-
ning or when the ignition is switched on.
If the system cannot be operated after
repeated programming, check whether
the original hand-held transmitter uses an alter-
nating-code system. To do so, either read the
instructions of the original hand-held transmit-
ter or press and hold down the programmed
memory button1 of the integrated universal
remote control. If the LED2 on the integrated
universal remote control flashes rapidly for a
short time then lights up for approx. 2 seconds,
this indicates that the original hand-held trans-
mitter uses an alternating-code system. In the
case of an alternating-code system, program
the memory buttons1 as described in the sec-
tion below on alternating-code hand-held
transmitters.<
Alternating-code hand-held
transmitters
Consult the operating instructions of the unit
you wish to set when programming the univer-
sal remote control. You will find information
there on the possibilities for synchronization.
When programming hand-held transmitters
that employ an alternating code, please follow
these additional instructions:
Programming will be easier with the aid of
a second person.<
1.Park your vehicle within the range of the
remote-controlled equipment.
2.Program the integrated universal remote
control as described above in the section on
Fixed-code hand-held transmitters.
3.Locate the button on the receiver of the
equipment to be set, e.g. on its drive unit.
4.Press the button on the receiver of the
device you want to set up. After step 4, you
have approx. 30 seconds for step 5.
5.Press the programmed memory button1
of the integrated universal remote control
three times.The corresponding memory button1 is now
programmed with the signal of the original
hand-held transmitter.
If you have questions, please contact your
BMW Sports Activity Vehicle Center.<
Deleting stored programs
Press the left and right memory button1 for
approx. 20 seconds until the LED2 flashes rap-
idly:
All stored programs are deleted.
Reassigning individual programs
1.Hold the original hand-held transmitter at a
distance of approx. 4 in/10 cm to 12 in/
30 cm from the memory buttons1.
The required distance between the
hand-held transmitter and memory
buttons1 depends on the relevant system
of the original hand-held transmitter used.<
2.Press the desired memory button1 of the
integrated universal remote control.
3.When the LED 2 flashes slowly after approx.
20 seconds, press the transmit button of
the original hand-held transmitter. Release
both buttons as soon as the LED2 flashes
rapidly. If the LED2 does not flash rapidly
after approx. 15 seconds, then change the
distance and repeat the step.
Digital compass*
1Adjusting button
2Display
The display indicates the cardinal or intercardi-
nal direction in which you are currently driving.

Reference
At a glance
Controls
Driving tips
Mobility
83
Saving fuel
The fuel consumption of your vehicle is depen-
dent on various factors. You can improve your
vehicle's fuel consumption and reduce the
strain on the environment with several mea-
sures, your driving style and regular mainte-
nance.
Removing unnecessary cargo
Additional weight increases fuel consumption.
Removing attached parts following use
Remove auxiliary mirrors, roof or rear luggage
racks which are no longer required following
use. Attached parts on the vehicle impair the
aerodynamics and increase the fuel consump-
tion.
Closing windows and panorama glass
sunroof
An open panorama glass sunroof or an open
window also increases the aerodynamic drag,
and with it the fuel consumption.
Checking tire inflation pressures
regularly
Check the tire inflation pressures at least twice
a month and before starting off on a longer trip
and correct them if necessary.
An insufficient tire inflation pressure increases
the rolling resistance, therefore increasing fuel
consumption and tire wear.
Driving off immediately
Do not allow the engine to warm up by leaving it
running while the vehicle remains stationary.
Instead, drive off immediately at a moderate
engine speed. This enables a cold engine to
reach its operating temperature most rapidly.
Looking well ahead when driving
Avoid unnecessary acceleration and braking by
maintaining a corresponding distance to the
vehicle driving ahead. Driving smoothly and
looking ahead reduces fuel consumption.
Avoiding high engine speeds
Only use 1st gear when starting off. Accelerate
briskly from 2nd gear while avoiding high
engine speeds and shifting up prematurely.
When the desired speed is reached, shift into
the highest possible gear and drive at constant
speed at the lowest possible engine speed.
Always remember: driving at low engine speeds
decreases fuel consumption and reduces wear.
Using overrun conditions
When approaching a red light, take your foot off
the accelerator and allow the vehicle to coast in
the highest possible gear.
On a downhill stretch of road, take your foot off
the accelerator and allow the vehicle to coast in
the suitable gear.
The flow of fuel is interrupted in overrun.
Switching off the engine during longer
stops
Switch off the engine during longer stops, e.g.
at traffic lights, railroad crossings or in traffic
jams. You already save fuel from approx. 4 sec-
onds with the engine switched off.
Switching off functions currently not
required
Functions like the air conditioner, seat heating
or the rear-window defroster require a lot of
energy and consume additional fuel. This plays
a major role especially when driving in urban
and in stop-and-go traffic. Therefore, switch off
these functions when they are not really
required.
Having maintenance carried out
Have regular maintenance performed on the
vehicle to achieve optimum the economy and
service life of your vehicle. BMW recommends
having maintenance performed by a BMW
Sports Activity Vehicle Center. Also observe
the BMW maintenance system, refer to
page105.

Refueling
92
Refueling
Fuel cap
Opening
Always switch off the engine before
refueling. Otherwise, no fuel can be dis-
pensed into the tank and the Service Engine
Soon lamp lights up.<
1.Open fuel filler door. To do so, briefly press
it at the rear edge.
2.Turn fuel filler cap counterclockwise.
3.Place the fuel filler cap in the bracket
attached to the fuel filler door.
Closing
Replace the cap and turn it clockwise until you
hear a clearly audible click.
Be careful not to crush the cap leash between
the gas cap and the vehicle.
The warning lamp
* lights up.
The fuel cap is not properly closed or is
missing. Check whether the fuel cap is
properly closed.
Manually releasing fuel filler door
When a malfunction is occurring, you can
unlock the fuel-filler flap manually:
1.Open the cover flap on the right-hand side
panel of the cargo area, refer to page78.
2.Pull the green button. The fuel filler flap is
released.
Always take all applicable precautions
and comply with all regulations when han-
dling fuels. Never carry spare fuel containers in
your vehicle. Whether empty or full, these con-
tainers can leak, cause an explosion, and lead to
fire in the event of a collision.<
Observe the following when refueling
When handling fuels, comply with all
applicable safety precautions posted at
the service station.<
When refueling, insert the filler nozzle com-
pletely into the filler pipe. Avoid lifting the filler
nozzle while filling the tank; otherwise, this can
result in:
>Premature pump shutoff
>Reduced efficiency in the fuel-vapor recov-
ery system
The fuel tank is full when the filler nozzle clicks
off the first time.