tow BMW 540I SEDAN 2003 Owners Manual

Contents

Operation, maintenance
Owner service procedures

Special operating instructions:

Break-in procedures132
Driving notes133
Antilock Brake System133
Brake system134

Wheels and tires:

Tire inflation pressure135
Tire condition135
Tire replacement136
Wheel and tire
combinations137
Special characteristics of winter
tires138
Snow chains138

Under the hood:

Hood139
Engine compartment
essentials140
Washer fluids141
Engine oil142
Coolant144
Brake fluid145

Maintenance:

The BMW Maintenance
System146

Laws and regulations:

Technical modifications147
California Proposition
65 Warning147
OBD interface socket148

Replacement procedures:

Onboard tool kit152
Windshield wiper blades152
Lamps and bulbs153
Changing a wheel158
Battery162
Fuses162

Assistance, giving and
receiving:

Jump-starting164
Towing the vehicle165

39n
OverviewControlsMaintenanceRepairsDataIndex
Luggage compartment lid/Tailgatesport wagon:
1. From inside the luggage compart-
ment, open the two side covers
(arrow). Remove the covers392de778
2. Release the two quick-release fas-
teners of the cover for the onboard
tool kit in the tailgate. Raise the
cover
3. Remove the plastic plug (arrow) and
pull toward the interior. The tailgate
will be released
4. Open the tailgate. Press the plug
back into place and close the cover
with the quick-release fasteners
5. Position the two side covers and
close them.392de776
To open from the outsidePress the button (arrow): the luggage
compartment lid/tailgate opens slightly.
The luggage compartment (cargo area)
is illuminated whenever the luggage
compartment lid/tailgate is opened (for
additional information refer to
page 105).394de728

42n
Luggage compartment Alarm systemLuggage strapsUse the straps on the floor of the
luggage compartment to secure smaller
items of luggage.
Movement is reduced when objects are
placed on the straps.
The lashing eyes at the corners of the
luggage compartment provide you
with a convenient means of attaching
luggage nets
* and flexible straps for
securing suitcases and luggage.
Refer also to "Cargo loading" on
page 128.
394de302
HangerOn the left-hand side of the luggage
compartment is a hanger for fastening
shopping bags, packages and similar
items.394de144
The conceptThe vehicle alarm system responds
>when a door, the hood, the luggage
compartment lid/tailgate or the rear
window is opened
>to movement inside the vehicle (inte-
rior motion sensor)
>to variations in the vehicle's tilt angle
such as those occurring during
attempts to steal the wheels or tow
the vehicle
>to interruption of battery voltage.
The system responds to unauthorized
vehicle entry and attempted theft by
simultaneously activating the following
>an acoustic alarm for 30 seconds
>the hazard warning flashers, for
approx. five minutes
>the high beams flash on and off in the
same rhythm as the hazard warning
flashers.

46n
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.

47n
OverviewControlsMaintenanceRepairsDataIndex
Sliding/tilt sunroof
*
Despite this safety feature, be
extremely careful that the travel
path of the sunroof is not obstructed
whenever it is closed. Remember that
the safety mechanism may not be able
to detect obstructions under all circum-
stances (with very thin objects, for
instance). You can disable this safety
feature by pressing the switch beyond
the pressure point and holding it.<
Sliding/tilt sunroof with glass
moonroof
*
The options and control procedures are
essentially the same as those previ-
ously described for the sliding/tilt sun-
roof. In order to open the raised roof,
press the control switch towards
"Open" and maintain pressure until the
roof has reached the desired position.
The headliner insert slides back some-
what when you raise the sunroof, and
retracts along with the sunroof panel
when you slide it back. The insert then
remains open, and you can slide it back
and forth to adjust it whenever the sun-
roof is not fully retracted.
Interruption in the electrical
supplyAfter interruptions in the electrical
supply (when the battery is discon-
nected, for instance), the sunroof may
only lift. To reinitialize the mechanism:
1. Raise the sliding/tilt sunroof fully
2. Press and hold the switch for approx.
twenty seconds.390de725
Manual operationIn the event of an electrical malfunction,
you can also operate the sliding/tilt
sunroof manually:
1. Remove the interior lamp, then reach
into the exposed opening and press
out the cover
2. Use the Allen key from the onboard
tool kit (refer to page 152) to turn the
sliding/tilt sunroof in the desired
direction.390de376

74n
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.

77n
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.

88n
ComputerMode selectionFrom ignition key position 1 and up, you
can press the button in the turn signal
lever to retrieve information from the
computer for display. Tap the button
toward the steering column to scroll to
the next status display in the sequence.
The displays appear in the following
order: outside temperature, average
fuel consumption, cruising range,
average speed.
Starting with ignition key position 1,
the last active setting is displayed.
The range of available displays varies
according to your individual vehicle's
equipment.390de700
Outside temperature and
average fuel consumptionYou can change the units of measure
(7/6) for the outside temperature dis-
play by
1. pressing and holding the trip
odometer reset button (in ignition key
position 1)
2. and then turning the ignition key to 0.
Refer also to page 82.Cruising range and average speedThe computer bases its calculations of
the cruising range on the previous
driving style and conditions.
The computer ignores any time spent
when the vehicle is stationary and the
engine is not running in its average
speed calculations.390us126
To delete the displayPress the button in the turn signal lever
while the average speed is being shown
to cancel the display of computer infor-
mation.To restart calculationsYou can maintain pressure on the
button within the turn signal lever to
reset the computer and initiate new cal-
culations of average speed and fuel
consumption. This feature is only avail-
able when the engine is running.Computer with alphanumeric
display
*
If your vehicle is equipped with Check
Control featuring an alphanumeric dis-
play, a description of the corresponding
computer can be found starting on
page 93 as well as in the "Owner's
Manual for Onboard Computer."

99n
OverviewControlsMaintenanceRepairsDataIndex
Park Distance Control (PDC)
*
ASC+T/DSC
*
PDC does not remove the driver's
personal responsibility for evalu-
ating the distance between the vehicle
and any obstacles. Even with the sen-
sors, there is a blind spot in which
objects cannot be detected. This
applies especially in those cases where
the system approaches the physical
limits of ultrasonic measurement, as
occurs with tow bars and trailer cou-
plings, and in the vicinity of thin or
wedge-shaped objects.
Certain sources of sound, such as a
loud radio, could drown out the PDC
signal tone.<
Keep the sensors clean and free
of ice or snow in order to ensure
that they continue to operate effec-
tively.
Do not apply high pressure spray to the
sensors for a prolonged period of time.
Maintain an adequate distance of more
than 4 in (10 cm).<
Automatic Stability Control plus
Traction (ASC+T)/Dynamic
Stability Control (DSC)
*
These systems contribute to additional
vehicle stability, especially during
acceleration and when cornering.
The DSC system enhances the benefits
of the ASC+T. In addition to optimizing
vehicle stability and traction during
acceleration or when starting from a
standstill, a further benefit is realized in
cornering. This, of course, is true only
within physically feasible limits.
The system activates automatically
each time you start the engine.

106n
1 Airflow directed toward the
windshield and side windows
2 Airflow for the upper body
area108
3 Footwell ventilation
4 Rear footwell ventilation 5 Airflow for the upper body area
in the rear seat108
6 Temperature107
7 Air distribution 1078 Air supply107
9 Rear window defroster107
10 Cooling107
11 Recirculated-air mode107
Air conditioning
390us742