2003 BMW 540I SEDAN stop start

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OverviewControlsMaintenanceRepairsDataIndex

Indicator and warning lamps

Technology that monitors itself

The system runs a check on the
warning and indicator lamps marked
by "

l

" each time you switch on the
ignition. They each light up once for dif-
ferent periods of time.
If a fault should occur in one of these
systems, the corresponding lamp does
not go out after the engine is started or
it lights up while the vehicle is moving.
The following section describes how
you should respond.

Red: stop immediately

Battery charge current

l

The battery is no longer being
charged. This indicates a defect
in the alternator drive belt or in the
charging circuit of the alternator. Please
contact the nearest BMW center.
You should never attempt to con-
tinue driving with a defective drive
belt, as the engine could overheat and
sustain serious damage. If the drive belt
is defective, increased steering effort is
also required.

<


Engine oil pressure

l

May be accompanied by the
message "STOP!ENGINE OIL-
PRESS" in the Check Control

*
: stop the
vehicle immediately and switch off the
engine. Check the engine oil level; top
up as required. If the oil level is correct:
please contact the nearest BMW
center.
Do not continue driving, as the
engine could sustain serious
damage from inadequate lubrication.

<



Tire Pressure Monitor (RDC)

*


l

Accompanied by an acoustic
warning signal: a flat tire has
occurred. Reduce vehicle speed imme-
diately and stop the vehicle. Avoid hard
brake applications. Do not oversteer.
For additional information: refer to
page 101
Parking brake

*
/Brake system
hydraulic circuits

l

Comes on when you engage the
parking brake.
For additional information: refer to
page 70
Comes on although the parking brake
is released: have the brake fluid level
checked. Before continuing your
journey, be sure to read the notes on
pages 134 and 145
Also comes on with the message
"CHECK BRAKE LININGS" in the
Check Control.
Parking brake warning lamp

*
/
Brake system hydraulic circuits
for Canadian models.

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Sliding/tilt sunroof
*
To prevent injuries, exercise care
when closing the sliding/tilt sun-
roof and keep it in your field of vision
until it is shut.
Before leaving the vehicle, switch off
the electric sunroof mechanism by
removing the ignition key. Do not leave
children unattended in the vehicle with
access to vehicle keys. The key could
be used to start the engine and operate
vehicle systems such as the power sun-
roof, etc. Unsupervised use of these
systems can result in serious personal
injury.<
For the convenience mode via the door
lock or the remote control, refer to
page 33 or 35.
Raising Ð Opening Ð ClosingFrom ignition key position 1 on, press
the switch or slide it in the desired
direction until you feel resistance.
When lifting, the headliner retracts sev-
eral inches.
The headliner insert can not be
closed with the sunroof in its
raised position.<
After the ignition has been switched off,
you can still operate the sliding/tilt sun-
roof as long as neither of the front
doors has been opened.390de724
Automatic
* opening and closing
Press the switch past the pressure
point and then release it.
Other automatic operations are:
>With the sunroof open, press the
switch briefly toward "Lift:" the sun-
roof automatically extends to its fully-
raised position
>With the sunroof lifted, press the
switch briefly toward "Open:" the
sunroof automatically opens all the
way.
Pressing the switch again briefly stops
the motion.Safety featureIf the sliding/tilt sunroof encounters
resistance at a point roughly past the
middle of its travel when it is closing,
the closing cycle is interrupted and the
sliding/tilt sunroof will open again
slightly.

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OverviewControlsMaintenanceRepairsDataIndex
Manual transmissionBMW 525i, 530iEvery time you shift gears, always
depress the clutch pedal all the way
down, pushing the gearshift lever into
the respective end position.
Depress the clutch when starting the
engine, as the lockout will prevent the
engine from starting if the clutch is not
depressed.360de044
BMW 540iWhen shifting gears, always depress
the clutch pedal all the way down,
pushing the gearshift lever into the
respective end position.
Depress the clutch when starting the
engine, as the lockout will prevent the
engine from starting if the clutch is not
depressed.
When shifting gears in the
5th/6th-gear plane, be sure to
press the gearshift lever to the right in
order to prevent inadvertent selection
of a gear in the 3rd/4th-gear plane.< 380de044
ReverseSelect only when the vehicle is com-
pletely stopped. Press the gearshift
lever to the left to overcome the resis-
tance.
When you engage reverse, the backup
lamps will come on automatically when
the ignition key is in position 2.
Do not hold the vehicle in place on
slopes by slipping or "riding" the
clutch. Use the parking brake instead.
Riding the clutch causes increased
clutch wear.<

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Automatic transmission
*
Electronic transmission control
module
If the indicator lamp comes on
and/or if the message "TRANS.
FAILSAFE PROG" appears in
the Check Control
* display panel, this
indicates a malfunction in the transmis-
sion control system.
Bring the vehicle to a stop, select the
"Park" position, apply the parking brake
and switch the engine off (ignition key
position 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 restored. You may continue to
drive as usual.
If the indicator lamp does not go out,
you can move the selector lever to all
positions. However, the vehicle will now
only drive forward with limited gear
selection.
You should respond by avoiding
extreme engine loads and referring the
problem to the nearest BMW center.
Never perform work in the engine
compartment without first
ensuring that the transmission is in
"Park" or "Neutral" as the vehicle could
otherwise start to move off on its own.<
For jump-starting, towing and tow-
starting, refer to pages 164 and 165.

76n
Automatic transmission with Steptronic
*
To prevent the vehicle from
starting off on its own, always
move the selector lever to position P or
N and engage the parking brake before
leaving your vehicle with the engine
running. Do not leave the vehicle unat-
tended with the engine running. An
unattended vehicle with a running
engine represents a potential safety
hazard.<
P ParkSelect "Park" only when the vehicle is
completely stopped. The transmission
locks to prevent the rear wheels from
turning.R ReverseSelect "Reverse" only when the vehicle
is completely stopped.N Neutral (idle)Select "Neutral" only if your journey is
interrupted for a longer period.
D Drive
(automatic shift program)This position is designed for driving
under all normal operating conditions.
All forward gears are available."Kickdown"In the "kickdown" mode, you achieve
maximum acceleration and top speed
in position D.
Depress the accelerator pedal past the
resistance point at the full-throttle posi-
tion.
M/S Manual mode and
Sport ProgramWhen you change from "D" to "M/S,"
the Sport Program is activated. This is
indicated by "D S" in the transmission
range display. The Sport Program is
designed for performance-oriented
driving.
With the first brief touch, the automatic
transmission shifts from the Sport Pro-
gram to the manual mode. Whenever
you move the selector lever in the "+"
direction, the transmission upshifts, and
when you move it in the "Ð" direction,
the transmission downshifts. M1...M5
will be displayed in the gear indicator.390de721

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OverviewControlsMaintenanceRepairsDataIndex
Automatic transmission with Steptronic
*
ATC executes upshifts and downshifts
only when the new gear will provide a
suitable combination of vehicle and
engine speed, i.e., ATC will not execute
downshifts that would cause the engine
to overrev. The gear selected will
appear briefly in the instrument cluster
followed by the current gear.
If you are driving in the manual
mode and wish to accelerate
rapidly from low road speeds (when
passing, for instance), you must shift
down manually or with the "kickdown"
function.<
You can only change from "M/S" to
selector lever positions "P," "R," and
"N" via the "D" position.
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."
Engage 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
performance has been restored. 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.
If this happens, avoid extreme engine
loads and refer the problem to the
nearest BMW center.
Never perform work in the engine
compartment without first
ensuring that the transmission is in
"Park" or "Neutral" as the vehicle could
otherwise start to move off on its own.<
For jump-starting, towing and tow-
starting, refer to pages 164 and 165.

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OverviewControlsMaintenanceRepairsDataIndex
Digital clock in the MID
*
Reminder signalYou can program a reminder signal
(Memo) to be heard every hour, so that
you are sure not to miss a news broad-
cast, for example.
Press the left side of the button.
Press:
MEMO OFF appears in the display for
entry and query buttons, and the tone
symbol will appear in the upper right of
the display.
A signal is then heard 15 seconds
before each hour.
StopwatchPress the left side of the button.
Press.
Display shows:
To start the stopwatch function:
Press the right side of the button.
To take an intermediate time reading:
Press.
Press:
The stopwatch display can be seen
counting up; the stopwatch continues
to run.
To halt the stopwatch:
Press the right side of the button.
The stopwatch is halted when the
ignition key is turned back to 0,
but starts to run again when the ignition
key is turned to 1.<

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ASC+T/DSC
*
Indicator lamp
The indicator lamp in the instru-
ment cluster goes out shortly
after you switch on the ignition.
Refer to page 21.
Indicator lamp flashes:
The system is active and governs drive
torque and braking force.
If the indicator lamp fails to go out after
the engine is started, or if it comes on
during normal driving:
There is a system malfunction or the
system was deactivated with the
button. You can still drive the vehicle
normally without ASC+T/DSC.
Please consult your BMW center for
repairs.
To deactivate the systemPress the button, the indicator lamp
lights up and remains on continuously.
Depending on equipment options, the
button is marked with ASC or DSC.
With deactivated ASC+T/DSC you are
driving with conventional, unregulated
torque transfer.
In the following exceptional situations,
it may be effective to deactivate the
ASC+T/DSC for a brief period:
>When rocking the vehicle or starting
off in deep snow or on loose surfaces
>When driving with snow chains.390us728
To reactivate the systemPress the button again; the indicator
lamp goes out.
The laws of physics cannot be
repealed, even with ASC+T/DSC.
An appropriate driving style always
remains the responsibility of the driver.
Do not use the extra safety margins fur-
nished by these systems as an excuse
for taking unnecessary risks.< Dynamic Brake Control (DBC)
*
DBC is an integral component of the
DSC system.
The system responds to sudden, high-
intensity applications of force to the
brake pedal by automatically braking
the vehicle with maximum boost to
achieve the shortest possible braking
distances during "panic stops." This
system exploits all the benefits of ABS.
Do not reduce the pressure exerted
against the brake pedal until the
braking maneuver has been completed.
DBC is deactivated when you release
the brake pedal.