2000 BMW 540I SEDAN check engine

73n
RepairsIndexOverview Controls Car care Technology Data
Automatic transmission
*
Electronic transmission control
module
If the indicator lamp comes on
or if the message "TRANS.
FAILSAFE PROG" appears in
the Check Control
*, there is a malfunc-
tion in the transmission system.
Bring the vehicle to a stop, select the
"Park" position, apply the parking brake
and shut the engine off (ignition key po-
sition 0). Restart the engine after a few
seconds. If the indicator lamp goes out
again after a few seconds, the normal
transmission functions have been re-
stored. You may continue to drive as
usual.
If the indicator lamp does not go out,
you can place the selector lever in all
positions. However, the vehicle will now
only drive forward with limited gear
selection.
Under these circumstances, avoid ex-
treme engine loads and consult the
nearest authorized BMW center.
Do not work in the engine com-
partment when a drive gear (for-
ward or reverse) is engaged. If you do
this, the vehicle could move.<
For jump-starting, towing and tow-
starting, refer to pages 182 and 183.

76n
Automatic transmission with Steptronic
*
Upshifts or downshifts will be carried
out by the ATC only at appropriate en-
gine speeds and road speeds. For in-
stance, if engine speed is too high, a
downshift will not be executed. The
gear selected will appear briefly in the
instrument cluster followed by the cur-
rent gear.
If you are driving in the manual
mode and wish to accelerate rap-
idly from low road speeds (when pass-
ing, for instance), you must shift down
manually or with the kickdown func-
tion.<
You can only change from "M/S" to se-
lector lever positions "P,""R," and "N"
via the "D" position.
In the following situations, the Step-
tronic "thinks" for you in the manual
mode:
>In order to prevent engine over-
speeding, the transmission shifts au-
tomatically to the next higher gear
shortly before the RPM cutoff point
>At low speeds, the transmission shifts
down automatically Ð you do not have
to act
>In the kickdown mode, the transmis-
sion shifts down to the lowest gear
which is possible, depending on the
engine speed
>According to the situation, for
instance in wintry conditions, the
vehicle can be started in 2nd or
3rd gear.Electronic transmission control
module
If the indicator lamp comes on
or the message "TRANS.FAIL-
SAFE PROG" appears in the
Check Control
*, there is a fault in the
transmission system.
Bring the vehicle to a stop. Move the
transmission selector lever to "P." Set
the parking brake and turn the engine
off (ignition key to position 0).
Wait a few seconds, then start the
engine.
If the indicator lamp goes out after a
few seconds, normal transmission per-
formance has been restored. You may
continue to drive as usual. If the indica-
tor lamp does not go out, you can place
the selector lever in all positions. How-
ever, the vehicle will now only drive for-
ward with limited gear selection.
If this happens, avoid extreme engine
loads and consult the nearest autho-
rized BMW center.
Do not work in the engine com-
partment when a drive gear (for-
ward or reverse) is engaged. If you do
this, the vehicle could move.<
For jump-starting, towing and tow-
starting, refer to pages 182 and 183.

84n
Temperature gauge Service Interval DisplayBlueThe engine is still cold. Drive at moder-
ate engine and vehicle speeds.RedWhen you switch on the ignition, the
warning lamp comes on briefly to con-
firm that the system is operational.
Comes on while driving: The engine is
overheated. Switch the engine off im-
mediately and allow it to cool down.390de007
Between the blue and red zonesNormal operating range. It is not un-
usual for the needle to rise as far as the
edge of the red zone in response to
high outside temperatures or severe
operating conditions.
Checking coolant level: Refer to
page 151.
The precise layout varies according to
the individual model version.
Green lampsThe number of illuminated lamps de-
creases as the time for your next main-
tenance visit approaches.Yellow lampThis field appears together with
OILSERVICE or INSPECTION.
Maintenance is due. Please contact
your BMW center for an appointment.Red lampThe maintenance deadline has been
passed.390us702

86n
Check Control>RELEASE PARKINGBRAKE
>COOLANT TEMPERATURE
The coolant is overheated. Stop the
vehicle and switch off the engine im-
mediately. Refer to pages 84
and 15 1.
>STOP! ENGINE OILPRESS
The oil pressure is too low. Stop the
vehicle and switch off the engine im-
mediately. Refer to page 22.
>CHECK BRAKE FLUID
Indicates that brake fluid is down to
roughly minimum level. Top up the
brake fluid at the next opportunity.
Refer to page 152. Have the source
of the brake fluid loss diagnosed and
corrected by your BMW center.
>FLAT TIRE
*
Reduce vehicle speed immediately
and stop the vehicle. Avoid hard
brake applications. Do not oversteer.
Refer to page 93.
>LOAD LEVEL INACTIVE
Please consult the nearest authorized
BMW center. Refer to page 132.
>SPEED LIMIT
*
Display if the programmed speed
limit has been exceeded.Priority 2
These displays appear for 20 seconds
when the ignition key is turned to posi-
tion 2. The warning symbols remain
after the message disappears. You can
display the messages again by pressing
the CHECK button (3):
>TRUNKLID OPEN
Message appears only when the
vehicle is initially set in motion.
>DOOR OPEN
This message appears after a minimal
defined road speed has been ex-
ceeded.
>FASTEN SEAT BELTS
*
In addition to this message, a
warning lamp with the safety belt icon
appears and an acoustical signal
sounds.
>WASHER FLUID LOW
Too low; top up fluid at the next
opportunity. Refer to page 148.
>CHECK ENGINE OIL LEV
Add engine oil as soon as possible.
Refer to page 149.
>OUTSIDE TEMP. +207 (Ð56)
This display is only an example. The
current temperature is displayed at
outside temperatures of +37.57
(+36) and below. Refer also to
page 82.>TIRE PRESSURE SET
*
The RDC has imported the current in-
flation pressure in the tires as the tar-
get values which the system will
monitor.
Refer to page 92.
>CHECK TIRE PRESSURE
*
Check and correct the tire inflation
pressure to specifications at the earli-
est opportunity (next stop for fuel).
Refer to page 92.
>TIRE CHECK INACTIVE
*
A temporary interference of the RDC
or a system fault. Refer to page 93.
>CHECK BRAKE LAMPS
A lamp has failed or the electrical cir-
cuit has a fault. Refer to pages 169
and 170 or consult an authorized
BMW center.
>CHECK LOWBEAM LAMPS
CHECK SIDE LAMPS
CHECK REAR LAMPS
CHECK FRONT FOGLAMPS
CHECK LICPLATE LAMP
CHECK HIGHBEAM LAMP
CHECK BACK UP LAMPS
Defective bulb or circuit. Refer to
page 167 or consult an authorized
BMW center.

87n
RepairsIndexOverview Controls Car care Technology Data
Check Control>TRANS. FAILSAFE PROG
Please consult the nearest authorized
BMW center. Refer to pages 73, 76.
>CHECK BRAKE LININGS
Have the brake pads inspected by
your BMW center. Refer to page 130.
>CHECK COOLANT LEVEL
Coolant too low, top up at the next
opportunity. Refer to page 151.
>ENGINE FAILSAFE PROG
Fault in the Electronic Engine Power
Control (EML). When braking, higher
brake application pressure may be
necessary and brake pedal travel may
be significantly longer.
Have the fault checked by your
authorized BMW center.
Displays after completion of tripAll of the malfunctions registered during
the trip appear consecutively when the
key is turned to Position 0.
One of the following displays may ap-
pear:
>LIGHTS ON
>KEY IN IGNITION LOCK
>CHECK ENGINE OIL LEV
Add engine oil at the next opportunity
(next stop for fuel). Refer to page 14 9.
Display appears when you open the
driver's door after parking the vehicle.
A supplementary gong is also heard.
Status reports remain available for a pe-
riod of approx. three minutes after the
display goes out and the key is re-
moved from the ignition. Press the
CHECK button. If there were multiple
reports, press the CHECK button re-
peatedly to view them all in sequence.
To check the Check ControlPress the CHECK button (3) with the
ignition key in position 2:
CHECK CONTROL OK appears in the
display.
No malfunctions are present in the
monitored systems.Onboard computerYou will find a description of the on-
board computer in the "Radio and Infor-
mation Systems" Owner's Manual.
You can have the Check Control
and onboard computer messages
displayed in a different language.<

89n
RepairsIndexOverview Controls Car care Technology Data
Onboard computerCancel displayIf the button in the turn-signal lever is
pressed briefly while the average speed
is displayed, the onboard computer dis-
play can be masked out.To restart calculationsIf you continue to press the button in
the turn signal lever, the average values
which were just displayed for fuel con-
sumption and speed will be recalcu-
lated from that point (the engine must
be running for this).
Onboard computer with
alphanumeric display
*
If your vehicle has Check Control with
alphanumeric display, the system's on-
board computer is described in the
"Radio and information systems"
Owner's Manual.

92n
Tire Pressure Control (RDC)
*
The concept RDC monitors the tire pressures at all
four wheels, even when the vehicle is
moving. The system provides an alert
whenever the inflation pressure drops
significantly below the specified pres-
sure in one or more tires.
In order for the system to "learn" the
correct tire inflation pressure, check the
inflation pressure in all tires. Refer to
the table of "Tire inflation pressures"
beginning on page 29 and make any
necessary corrections. Then activate
the system.
This indicator lamp in the in-
strument cluster or the Check
Control will inform you if the tire
pressure is not correct.
Activate the system1 Turn the ignition key to position 2 (do
not start the engine).
2 Press and hold the button (arrow) un-
til the yellow indicator lamp in the in-
strument cluster comes on for a few
seconds or the message "SET TIRE
PRESSURE" appears in the Check
Control.
3 After you have driven for a few min-
utes, the RDC will import the current
inflation pressure in the tires as the
target values which the system will
monitor.
You will only have to repeat this proce-
dure if the tire inflation pressure must
be corrected. Otherwise, the RDC func-
tions automatically when the ignition
key is in position 2, and thus operates
whenever the vehicle is driven.390de320
Loss of tire pressureIf, after a certain period of time, the air
pressure has gone down significantly
(which is normal for any tire), the yellow
indicator lamp comes on or the mes-
sage "CHECK TIRE PRESSURE" ap-
pears in the Check Control.
This alerts you that you should have the
tires inflated to the specified pressures
as soon as possible.
If you are prompted to check the
tire pressure shortly after a cor-
rection has been made, this indicates
that the corrected values were not ac-
curate. Please check the inflation pres-
sure again and make corrections ac-
cording to the inflation pressure table.<

94n
Parking lamps
(side marker lamps)
With the switch in this position,
vehicle lighting is illuminated on
both sides. For lighting on one
side for parking, see page 95.
Low beams/Xenon lamps
*
When the ignition is switched off
and the low beams are on, only
the parking lamps (side marker
lamps) remain on.
390de034
"Follow-me-home lighting:"
If you actuate the headlamp
flasher after you have parked the
vehicle and shut off the engine, the low
beams will remain on for a brief period.
You may also have this function deacti-
vated if you wish.<
Xenon lamps
*
For additional details, refer to page 168."LIGHTS ON" warning In ignition key position 0, a buzzer
sounds for a few seconds after the
driver's door is opened if the head-
lamps have not been switched off
.
On vehicles with alphanumeric Check
Control
*:
The reminder is given through the
Check Control.
Daytime-driving lamp
*
The headlamps are automatically
switched on for daylight driving at
ignition key position 2.
Turn the rotary dial to adjust the illumi-
nation intensity.390de036
Parking lamps/Low beamsInstrument lighting