2003 BMW X5 4.4I catalytic converter

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Fuel specifications Tire inflation pressures The engine uses lead-free gasoline
only.
Required fuel:
>Premium Unleaded Gasoline,
min. 91 AKI.
AKI = Anti Knock Index
Do not use leaded fuels. The use
of leaded fuels will cause perma-
nent damage to the system's oxygen
sensor and the catalytic converter.<
Check tire pressures All pressure specifications are indicated
in psi/kilopascal for tires at ambient
temperature, refer also to the table on
the next page.
Vehicles with Tire Pressure Monitor
RDC:
After correcting the inflation pressures,
reactivate the system, refer to page 97.530de225
Check tire inflation pressures
regularly Ñ at least every two
weeks and before beginning a longer
trip. Incorrect tire pressure can other-
wise lead to poor handling, tire damage
and accidents.
Check the tire inflation pressure of the
spare tire. Inflate the spare tire to
the highest inflation pressure of any tire
on your vehicle.<
Comply with tire approval
specificationsThe inflation pressures in the table
apply to tire sizes and tires from BMW-
approved manufacturers. Your
BMW Sports Activity Vehicle center is
familiar with these pressures. A
different inflation pressure may be
required for tire makes not approved by
BMW.
Your vehicle is equipped with tires that
not only meet US standards, but also
European standards. We recommend
the exclusive use of BMW-approved
tires.

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OverviewControlsMaintenanceRepairsDataIndex
Starting the engine Switching off the engineDo not press the accelerator pedal
while starting the engine.
BMW X5 3.0i:
Do not actuate the starter for too
short a time. Do not turn it for more
than approx. 20 seconds. Release the
ignition key immediately as soon as the
engine starts.
BMW X5 4.4i, 4.6is:
Your BMW is equipped with the conve-
nience starting feature. Simply turn the
ignition key to position 3 Ð starter Ð and
then release it immediately.
The starter actuation continues to
operate automatically for a certain
period of time and is stopped automati-
cally as soon as the engine has started.
The automatic starting mode will not
operate if the battery voltage is low.
The engine can be started by means of
jump-starting, refer to page 162.<
Do not allow the engine to warm up
by leaving it running while the vehicle
remains stationary. Instead, begin to
drive immediately at a moderate engine
speed.
Should the engine fail to start on the
first attempt, if it is very hot or cold, for
instance:
>Press the accelerator pedal halfway
down while engaging the starter.
Cold starts at altitudes above 3,300 ft/
1,000 meters and at very low tempera-
tures, from approx. +5 7/Ð15 6:
>For the initial start attempt, allow the
starter to remain engaged somewhat
longer, approx. 10 seconds.
Engine idle speed is controlled by the
engine computer system. Increased
speeds at start-up are normal and
should decrease as the engine warms
up. If engine speed does not decrease,
service is required.
To prevent the battery from discharging,
always switch off electrical devices that
are not in use. Switch the ignition off
when the vehicle is not being driven.
Extended starting attempts, char-
acterized by excessively frequent
or long periods with the starter
engaged, can lead to damage of the
catalytic converter.<
Turn the ignition key to position 1 or 0.
Do not remove the ignition key
while the vehicle is still moving. If
you do so, the steering will lock.
Always remove the ignition key and
engage the steering lock before leaving
the vehicle.
Vehicles with manual transmission:
Always engage the parking brake when
parking on slopes and inclined sur-
faces. Even placing the gearshift lever
in 1st gear or reverse may not provide
adequate resistance to rolling.
Vehicles with automatic transmission:
Place the selector lever in Park.<
Vehicles with automatic transmission:
The vehicle must be stationary and the
selector lever in Park before you can
remove the ignition key.

147n
OverviewControlsMainte-RepairsDataIndex
OBD interface socket The interface socket for the Onboard
Diagnostic is located on the left of the
driver's side at the bottom of the instru-
ment panel and under a cover. The
cover has the letters OBD on it.
The purpose of the OBD system is to
ensure proper operation of the emis-
sion control system for the vehicle's
lifetime. The system monitors emission-
related components and systems for
deterioration and malfunction.530us105
An illuminated lamp informs you
of the need for service, not of
the need to stop the vehicle.
However, the systems should be
checked by your BMW Sports Activity
Vehicle center at the earliest possible
opportunity.
Under certain conditions, the indicator
will blink or flash. This indicates a rather
severe level of engine misfire. When
this occurs, you should reduce speed
and consult the nearest BMW Sports
Activity Vehicle center as soon as pos-
sible. Severe engine misfire over only a
short period of time can seriously
damage emission control components,
especially the catalytic converter.
Service Engine Soon warning
lamp for Canadian models.
When the filler cap is not properly
tightened, the OBD system can
detect the vapor leak and the indicator
will light up. If the filler cap is subse-
quently tightened, the indicator should
go out within a few days.<