catalytic converter BMW M5 SEDAN 2003 Owners Manual

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OverviewControlsMaintenanceRepairsDataIndex
Refueling
Always observe all safety notices
posted at the service station when
refueling. Never carry spare fuel con-
tainers in your vehicle. Whether empty
or full, these containers can leak, cause
an explosion, or lead to fire in the event
of a collision.<
Simple and environmentally
friendly
Open the fuel filler cap carefully to
prevent fuel from spraying out. Fuel
spray may cause injury. Do not attempt
to continue adding fuel to the last drop,
as this practice can cause fuel to spill.<
Keep the fuel filler cap in the bracket
attached to the fuel filler door.
When refueling, insert the filler nozzle
completely into the filler pipe. Pulling the
nozzle out of the pipe during refueling
>results in premature pump shutoff
>and will reduce the effect of the vapor
recovery system on the pump.
As long as the filler nozzle is used prop-
erly, the fuel tank is full whenever the
nozzle shuts off the first time.
394de120
Refill early to avoid damaging the
catalytic converter; never attempt
to drive to the last drop of fuel in the
tank.<
Tank capacity: approx. 18.5 gal.
(70 liters), with reserve of approx.
2.5 gal. (10 liters).
Close the fuel filler cap carefully
after refueling until a click is
heard. While closing, be sure not to
squeeze the strap which is fastened to
the cap. A loose or missing cap will
activate the message "CHECK FILLER
CAP" in the Check Control.<

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Fuel specifications Tire inflation pressureThe engine uses lead-free gasoline
only.
Required fuel:
>Premium Unleaded Gasoline,
min. 91 AKI.
AKI = Anti Knock Index
Never use leaded fuel, as it would
cause permanent and irreparable
damage to both the oxygen sensor and
the catalytic converter.<
The inflation pressures are indicated
on a warning sticker attached to the
B-pillar behind the driver's door (visible
with door open).Check tire pressuresAll pressure specifications are indicated
in psi (kilopascal) for tires at ambient
temperature (refer also to the next
page).
After correcting the inflation pres-
sures in the tires, reactivate the
Flat Tire Monitor, refer to page 82.<390de697
Check tire inflation pressures on a
regular basis, at least every two
weeks, and before every extended
journey. Otherwise, incorrect tire pres-
sure can lead to driving instability, tire
damage and accidents.<
Comply with tire approval
specificationsThe inflation pressures in the table
apply to BMW approved tire sizes and
tire manufacturers. Your BMW center is
familiar with these pressures. Higher
pressures may be specified for tires
made by other manufacturers.
Your vehicle is equipped with tires
which not only meet US standards, but
also European standards. We recom-
mend the exclusive use of BMW
approved tires.

64n
Tachometer Engine oil temperature Fuel gauge The orange pre-warning zone appears
depending on the engine temperature.
As the engine temperature increases,
more and more of the sectors of this
pre-warning zone disappear.
Avoid engine speeds in the pre-warning
zone if possible.
Do not operate the engine with the
needle in the red overspeed zone of the
gauge.
To protect the engine, the engine-man-
agement system interrupts the fuel
supply when you approach this sector.39mus023
The normal operating temperature
range is between + 176 7 (+ 80 6) and
+ 248 7 (+ 120 6). Do not exceed the
maximum temperature of +302 7
(+150 6). 39mus024
When you switch on the ignition, the
indicator lamp comes on briefly to con-
firm that the system is operational.
If the indicator lamp comes on and
stays on, there are approx. 2.5 gal
(10 liters) of fuel still in the tank.
For fuel tank capacity, refer to
page 143.
If the tilt of the vehicle varies (when you
are driving in mountainous areas, for
example), the needle may fluctuate
slightly.
Please refuel early, since driving
to the last drop of fuel can result in
damage to the engine and/or catalytic
converter.<39mus025

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OverviewControlsMaintenanceRepairsDataIndex
ComputerEstimated time of arrivalWhen you have entered the distance
from your destination, you can obtain
an estimated time of arrival display
which is continuously updated by the
computer as your average rate of
progress varies.
Press the right side of the button.
Press the right side of the button:
The estimated time of arrival is dis-
played.
Cruising rangeThe distance which the vehicle should
cover on the remaining fuel in the tank
is displayed.
Press the right side of the button.
Press:
The display shows the estimated
cruising range.
When there is only enough fuel to
drive less than 30 miles (50 km),
you should refuel, as otherwise the
engine or the catalytic converter could
be damaged.<< < <
The computer will only register fuel
amounts over 1.8 gal (6 liters).
Fuel consumptionYou can have the average fuel
consumption displayed for two different
distances, for example a complete
journey and part of the journey .
To start the calculation, select the func-
tion with the engine running:
Press the right side of the button.
Press on left or right:
The average fuel consumption will be
indicated in the display.
To restart the fuel consumption calcula-
tion:
Press on the left or right.
Press the right side of the button.

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OverviewControlsMaintenanceRepairsDataIndex
OBD interface socketThe Onboard Diagnostic (OBD) inter-
face socket 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 (Onboard-
Diagnostics) system is to assure proper
emission-control system operation for
the vehicle's lifetime by monitoring
emissions-related components and
systems to detect deterioration and
malfunction.390us739
An illuminated indicator informs
you of the need for service, not
of the need to stop the vehicle.
However, the systems should be
checked by your BMW 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 the
speed and consult the nearest BMW
center as soon as possible. Severe
engine misfire over only a short period
of time can seriously damage emis-
sions-control components, especially
the catalytic converter.
Service Engine Soon warning
lamp for Canadian models.
When the fuel 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 subsequently tightened, the indi-
cator should go out within a few days.<