catalytic converter BMW M6 CONVERTIBLE 2002 Owners Manual

25n
OverviewControlsMaintenanceRepairsDataIndex
Refueling Fuel specificationsAs long as the filler nozzle is used prop-
erly, the fuel tank is full whenever the
nozzle shuts off the first time.
Refill early to avoid damaging the
catalytic converter; never attempt
to drive to the last drop of fuel in the
tank.<
Tank capacity: approximately 18.5 gal.
(70 liters), with a reserve capacity of
>BMW 525i, 530i: 2.0 gal. (8 liters)
>BMW 540i: 2.5 gal. (10 liters).
After refueling, close the filler cap
carefully, continuing until you hear
the detent engage. 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
* or
the Check Filler Cap lamp
*.<
The 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 irreversible
damage to the oxygen sensor and the
catalytic converter.<

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OverviewControlsMaintenanceRepairsDataIndex
Tachometer Energy control Fuel gaugeDo not operate the engine with the
needle in the red overspeed zone of the
gauge.
To protect the engine, the engine-
management system interrupts the fuel
supply when you approach this sector.390us004
Indicates the current fuel consumption
in mpg (in liters/100 km on Canadian
vehicles). This allows you to see
whether your current driving style is
conducive to fuel economy with
minimum exhaust emissions.
When the vehicle is stationary, the
display goes to "Maximum" (zero on
Canadian models).390us005
When you switch on the ignition, the
indicator lamp comes on briefly to
confirm that the system is operational.
If the indicator lamp stays on, there are
approx.
>2.0 gal (8 liters) Ð
BMW 525i, BMW 530i
>2.5 gal (10 liters) Ð BMW 540i
of fuel still in the tank.
Tank capacity: refer to page 173
Certain operating conditions (such as
those encountered in mountainous
areas) may cause the needle to fluc-
tuate slightly.
Please refuel early, since driving
to the last drop of fuel can result in
damage to the engine and/or catalytic
converter.< 390us006

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OverviewControlsMaintenanceRepairsDataIndex
Computer in the MID
*
Estimated 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 driving
period varies.
Press the right side of the button.
Press the right side of the button:
The estimated time of arrival is
displayed.
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 probable range.
Always refuel when the range falls
below 30 miles (50 km), as other-
wise the engine or the catalytic
converter could be damaged.<
The computer will only register fuel
amounts over 1.8 gal (6 liter).
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 the left or right:
The display will show the average fuel
consumption.
To restart the fuel consumption
calculation:
Press on the left or right.
Press the right side of the button.

146n
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 system is to
ensure proper operation of the emis-
sion control system for the vehicleÕs
lifetime. The system monitors emis-
sions-related components and systems
to detect deterioration and malfunction.390us739
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 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 center as
soon as possible. Severe engine misfire
over only a short period of time can
seriously damage emissions-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.<