2008 BMW X3 3.0SI engine

Driving
44
Cruise control*
The vehicle maintains and stores the speed that
you set at speeds greater than approx. 20 mph/
30 km/h.
You can use cruise control whenever the sys-
tem is active while the engine is running.
Do not use the cruise control under unfa-
vorable conditions that do not permit a
constant speed, e.g. when driving on winding
roads or in heavy traffic or when negotiating
poor road conditions such as snow, rain, ice, or
a loose road surface. Otherwise, you could lose
control of the vehicle and cause an accident.<
Indicator lamp
The indicator lamp lights up green: sys-
tem ready for operation using the but-
tons on the steering wheel.
Activating system
With ignition key in position 2 or higher:
Press button on steering wheel; the indicator
lamp in the instrument cluster comes on.
The cruise control mode is enabled.
Deactivating system
Press the button repeatedly until the indicator
lamp in the instrument cluster goes out.
The cruise control is also deactivated when the
ignition key is turned to position 0. The speed
stored in the memory is deleted in the process.
Maintaining speed, storing, and
accelerating
Briefly press + button:
The system maintains and stores the current
vehicle speed. Each additional touch of the but-ton increases the speed by approx. 1 mph/
1km/h.
Press and hold + button:
The vehicle accelerates without pressure on
the accelerator pedal. When you release the
button, the system maintains and stores the
current speed.
If the braking action of the engine is insufficient
on a downhill stretch, then the set vehicle can
exceed the set speed. Speed can drop on uphill
grades if the engine output is insufficient.
Decelerating
Briefly press – button:
Each press of the button decreases the vehi-
cle's speed by roughly 1 mph/1 km/h, provided
that you have already activated the cruise con-
trol.
Press and hold – button:
With the cruise control active, the system auto-
matically reduces the fuel supply to slow the
vehicle. When you release the button, the sys-
tem maintains and stores the current speed.
Interrupting cruise control
When the system is activated, press the button.
The indicator lamp stays on. You can use the
cruise control again whenever required by
requesting the speed that was stored last.
In addition, the system is automatically inter-
rupted in response to the following conditions:
>When you apply pressure to the brake pedal
>When you apply pressure to the clutch
pedal or when you move the automatic
transmission selector lever from D to N
>If you exceed or fall below the set speed for
an extended period, by pressing the accel-
erator, for example
>When DSC is activated

Everything under control
46
Everything under control
Odometer
1Odometer
2Trip odometer
Odometer
You can activate the displays shown in the illus-
tration in ignition key position 0 or with the igni-
tion key removed by pressing the button in the
instrument cluster.
Trip odometer
To reset to zero:
1.Ignition key in position 1.
2.Press and hold the button until the trip
odometer is reset to zero.
Tachometer
Engine speeds in the red warning field must
absolutely be avoided.
In this range, the fuel supply is interrupted to
protect the engine.
Fuel gauge
Fuel tank capacity: approx. 17.7 US gal /
67 liters. Instructions for refueling can be found
on page92.
If the tilt of the vehicle varies, when you are driv-
ing in mountainous areas, for example, the indi-
cator may fluctuate slightly.
Reserve
If the LED1 starts to light up continuously,
there are still approx. 2 US gal /8 liters of fuel left
in the tank.
Refuel well before the tank is empty. If
you drive down to the last drop, engine
functions are no longer assured and damage
can occur.<
When you switch on the ignition, the LED
comes on briefly to confirm that the system is
operational.

Reference
At a glance
Controls
Driving tips
Mobility
47
Coolant temperature gauge
Blue
The engine is still cold. Drive at moderate
engine and vehicle speeds.
Between blue and red fields
Normal operating range. It is permissible for the
dial to drift up to the red field.
Red
Comes on while driving:
The engine is overheated. Switch off the engine
immediately and allow it to cool down.
Checking coolant level, refer to page104.
When you switch on the ignition, the warning
lamp1 comes on briefly to confirm that the sys-
tem is operational.
Service Interval Display
Remaining distance until next service
due
The displays shown in the illustration appear for
a few seconds once the ignition key is in posi-
tion 1 or after starting the engine.Together with the message OIL SERVICE or
INSPECTION, the next scheduled service and
remaining distance to this service are displayed
in miles/kilometers.
The remaining distance is determined on the
basis of the past driving style.
A flashing display and a – sign before the
numerical value mean that the service interval
has been passed by the displayed number of
miles/kilometers. Please make an appointment
with your BMW Sports Activity Vehicle Center.
Clock
If you wish to have a continuous clock display,
you can also set the car radio display to show
the time, refer to Owner's Manual for Radio.
You can set the clock or the time that appears in
the car radio display as follows.
Setting time
With the ignition key in position 1 or higher:
Hours
1.Hold button2 pressed for a few seconds
until the hours are displayed and the colon
flashes.
2.Press button1 repeatedly until the desired
hour is set.
Minutes
3.Press button2 to change to the minutes
display.
4.Press button1 repeatedly until the desired
minutes are set.
5.Press button2 to confirm the time.

Reference
At a glance
Controls
Driving tips
Mobility
49
During the display, hold down the computer
button in the turn signal lever until the display
changes.
Average fuel consumption
The average fuel consumption is calculated for
the time during which the engine is running.
Reset average consumption:
Press the computer button in the turn indicator
lever for approx. 2 seconds.
Cruising range
Displays the estimated cruising range available
with the remaining fuel. The current fuel level is
measured and the range is calculated taking
into account the driving style over the last
20 miles/30 km.
Always refuel as soon as possible once
your cruising range falls to below
30 miles/50 km; otherwise, engine functions
are not ensured and damage can occur.<
Average speed
The calculation of the average speed does not
take into account periods in which the vehicle is
parked with the engine switched off.
Resetting average speed: press the computer
button in the turn indicator lever for approx.
2seconds.

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.

Reference
At a glance
Controls
Driving tips
Mobility
59
Lamps
Parking lamps/low beams
0Lights off and daytime running lamps*
1Parking lamps and daytime running lamps*
2Low beams and welcome lamps
3Automatic headlamp control
*, daytime run-
ning lamps
*, welcome lamps and Adaptive
Head Light
*
If you open the driver's door when the ignition is
switched off, then the exterior lighting is
switched off if the light switch is in position0, 2,
or3.
Switch on the parking lamps as needed, switch
position1.
Parking lamps
In switch position1, the vehicle is lit on all sides.
You can use the parking lamps for parking.
The parking lamps will discharge the bat-
tery. For this reason, avoid using them for
extended periods; otherwise, it may no longer
be possible to start the engine. It is preferable to
switch on the one-sided roadside parking
lamps, refer to page60.<
Low beams
The low beams light up when the switch is in
position2 and the ignition is on.
Defective lamps
The indicator lamp lights up:
At least one bulb of the exterior lighting
on the vehicle is defective.
Replacing bulbs, refer to page107.
Door handle lighting
When the parking lamps or low beams are
switched on, the interior door handles are also
illuminated. The intensity of the lighting is
adjusted using the instrument lighting control.
Welcome lamps
If, when parking the vehicle, you leave the light
switch in position2 or3, the parking lamps and
the interior lamps light up briefly when the vehi-
cle is unlocked with the remote control.
Pathway lighting
When you activate the headlamp flasher after
parking the vehicle and switching off the lamps,
the low beams will come on for a brief period.
You may also have this function deacti-
vated if you wish.<
Daytime running lamps*
If so desired, the light switch can remain in
position0, 1, or3.
In positions0 and3, after the ignition is
switched off, the exterior lighting is automati-
cally switched off. In position1, the parking
lamps are lit after the ignition is switched off.
The parking lamps can be switched on as
needed as described under Parking lamps.
You can have the daytime running lamps
activated on your vehicle.<