2004 BMW 525I SEDAN engine

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Indicator and warning
lamps
Technology that monitors itself
The indicator and warning lamps identified
by the
+ symbol are subjected to an oper-
ation check each time you switch on the
ignition or start the engine. They each light
up once for different periods of time.
When a malfunction occurs in a monitored
system, the corresponding lamp will either
fail to go out when the engine is started, or
it will come on again during normal driving.
For information on how you should respond
when this happens, please refer to the
pages indicated.
Colors
The indicator and warning lamps can light
up in different colors and combinations.
The following section explains the signifi-
cance of the individual colors as well as
how you should respond when they
appear.
>Red:
Stop immediately
or
important reminder
>Red and yellow:
Continue driving moderately
>Yellow:
Have checked soon
or
for your information
>Green or blue:
For your information.
Indicator and warning lamps of the
Check Control
Other indicator and warning lamps appear
in display 6 of the instrument cluster as
necessary, accompanied by supplemen-
tary text on the Control Display, refer to
Check Control, page 68. Turn signal indicators 56
Active steering
+82
Handbrake/brake fluid, brake
hydraulics/DBC Dynamic Brake
Control
+50/ 180/ 79
Handbrake/brake fluid, brake
hydraulics/DBC Dynamic Brake
Control for Canadian models
Airbags
+83
Service Engine Soon
+183
If the indicator lamp comes on
either continuously or intermit-
tently, this indicates a fault in the
emissions-related electronic sys-
tems. Although the vehicle
remains operational, you should
have the systems checked by your
BMW center at the earliest possi-
ble opportunity.
Service Engine Soon indicator
lamp for Canadian models.
Front fog lamps 89
ABS Antilock Brake System
+77
DTC Dynamic Traction Control79
High beams/headlamp flasher 88
Please fasten safety belt
+40
DSC Dynamic Stability
Control
+78
Check Gas Cap168
lamp for US models

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Indicator lamp displays
>The indicator lamp beneath the interior
mirror flashes continuously: the system
is armed
>If the indicator lamp flashes during arm-
ing: doors, engine hood or luggage
compartment lid are not properly
closed. Even if you do not close the
alerted area, the system begins to mon-
itor the remaining areas, and the indica-
tor lamp flashes continuously after
approx. 10 seconds. However, the inte-
rior motion sensor is not activated
>If the indicator lamp goes out on dis-
arming: no manipulation or attempted
intrusions have been detected in the
period since the system was armed
>If the indicator lamp flashes on disarm-
ing until the key is inserted in the igni-
tion lock, but for approx. 5 minutes at
the most: your vehicle has been manip-
ulated in the meantime.
Following triggering of an alarm, the indica-
tor lamp will flash continuously.
Avoiding unintentional alarms
The tilt alarm sensor and interior motion
sensor may be switched off at the same
time. You can do this to prevent a false
alarm from being triggered in garages with
elevator ramps, for instance, or when the
vehicle is transported by trailer or train:
Lock, i.e. arm twice. Press the but-
ton on the remote control twice in succes-
sion, refer to page 27, or lock twice with
the key, refer to page 30.
The indicator lamp lights up briefly and
then flashes continuously. The tilt alarm
sensor and the interior motion sensor are switched off as long as the system is
armed.
Interior motion sensor
In
order for the interior motion sensor to
function properly, the windows and glass
roof must be completely closed.
However, switch the interior motion sensor
off, refer to Avoiding unintentional alarms, if
>children or animals are to remain in the
vehicle
>the windows or glass roof are to remain
open.
Windows
Opening and closing windows
As of ignition key position 1:
>Press the switch up to the resistance
point:
The window continues to move down-
ward as long as you continue to hold
the switch
>Briefly press the switch beyond the
resistance point:
The window moves downward auto-
matically. Press the switch again to
stop the opening movement.
You can close the windows in the same
manner by pulling the switch.
After switching off the ignition
You can still operate the windows:
>In the radio position for a longer time
>For approx. 1 minute in position 0 or
with the ignition key removed.

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Driving
Ignition lock
0 Steering locked
The key can only be inserted or removed in
this position.
After removing the key, turn the steering
wheel slightly until it locks.
Vehicles with automatic transmission:
only move the selector lever from
position P with the engine running. To turn
the key back to position 0 or to remove it,
first place the selector lever in position P:
Interlock.<
1 Steering unlocked
A slight steering wheel movement often
makes it easier to turn the key from 0 to 1.
Individual current consumers are ready for
operation.
2 Ignition switched on
All vehicle systems are ready for operation.
3 Start engine
Starting the engine
Do not run the engine in closed
rooms, as otherwise the inhaling of
toxic exhaust gases can cause uncon-
sciousness and death. The exhaust gases
contain carbon monoxide, an odorless and
colorless, but highly toxic gas. Never leave
an unattended vehicle with the engine run-ning, as such a vehicle represents a poten-
tial safety hazard.<
Do not allow the engine to warm up by
leaving it running while the vehicle remains
stationary. Instead, begin to drive immedi-
ately at a moderate engine speed.
When starting the engine, do not press the
accelerator pedal.
Your BMW is equipped with the con-
venience starting feature. Here, it is
sufficient to turn the ignition key only briefly
to position 3 'Start engine' and to let go of it
right away. The system responds by auto-
matically engaging the starter for a certain
period and allowing it to run until the engine
starts, after which it then disengages auto-
matically. The automatic starting mode will
not operate or will be canceled if the bat-
tery voltage is low. The engine can be
started by jump-starting, refer to
page 192.<
Press the accelerator pedal halfway down
when starting if
>the engine fails to start on the first
attempt, for instance, if it is very hot or
cold
>the engine is started at very low tem-
peratures, as of approx. +5 7/Ð156,
at high altitudes over approx. 3,300 ft/
1,000 m.
Avoid frequent starting in quick suc-
cession or repeated start attempts in
which the engine does not start. Otherwise,
the fuel is not burned or inadequately
burned and there is a danger of overheat-
ing and damaging the catalytic converter. 1.Apply the handbrake
2.Gearshift lever in idle position
3.Press the clutch pedal
4.Start the engine.
Before leaving the vehicle with the
engine running, place the gearshift

Driving
50 lever in idle position and apply the hand-
brake.
Never leave an unattended vehicle with the
engine running, as such a vehicle repre-
sents a potential safety hazard.<
Automatic transmission
1.Press the brake pedal
2.Place the selector lever in position P
or N
3.Start the engine.
To prevent the vehicle from rolling,
always select position P or N and
engage the handbrake before leaving the
vehicle with the engine running.
Never leave an unattended vehicle with the
engine running, as such a vehicle repre-
sents a potential safety hazard.<
Sequential manual transmission
SMG
1.Press the brake pedal
2.Place the selector lever in the idle posi-
tion N
3.Start the engine.
If the engine does not start, engage
the last gear selected, refer to Display
in the instrument cluster, and return the
selector lever to the idle position N.<
Before leaving the vehicle with the
engine running, place the selector
lever in position N and apply the hand-
brake.
Never leave an unattended vehicle with the
engine running, as such a vehicle repre-
sents a potential safety hazard.<
Switching off engine
Do not remove the ignition key while
the vehicle is rolling, as otherwise the
steering wheel lock would engage while
steering.
When leaving the vehicle, always remove
the ignition key and lock the steering.
When parking on downward inclines, apply
the handbrake.<
Manual transmission
Turn the ignition key to position 1 or 0.
Automatic transmission
1.Engage selector-lever position P
2.Turn the ignition key to position 1 or 0.
Sequential manual transmission
SMG
If the selector lever is in position R or in the
sequential mode and you turn the ignition
key to position 1 or 0, the gear remains
engaged automatically.
If the selector lever is in the idle position N
and you turn the ignition key to position 1
or 0, an acoustic signal and the flashing
gear indicator in the display reminds you
that the vehicle is not secured against roll-
ing away.
The warning stops sounding after approx.
9 seconds.
When parking on downward inclines,
apply the handbrake. Engaging a gear
is not sufficient to secure the vehicle from
rolling away under certain circumstances.<
Handbrake
The handbrake is primarily intended to pre-
vent the vehicle from rolling while parked; it
brakes the rear wheels.
Indicator lamp
The indicator lamp lights up with
the handbrake applied, and an
acoustic signal also sounds when
starting off.
Indicator lamp for Canadian mod-
els.
Applying
The lever locks into place automatically;
the indicator lamp in the instrument cluster
lights up in ignition key position 2.

Driving
52 >Automatic upshifts and downshifts in
the Drive mode
>Automatic downshifts with minimum
engine speed
>Kickdown function in the Drive mode
>Acceleration assistant, refer to
page 54.
Selector-lever positions
The current selector-lever position is dis-
played on the center console.
R: Reverse gear
N: Neutral, idle
Position for forward driving with one-touch
functions:
Sequential mode
+: manual upshifts
Ñ: manual downshifts
D: Drive mode.
The SMG is operational in ignition key posi-
tion 2.
Idle is automatically engaged if the
driver's door is opened with the
engine running and neither pedals, shift
paddles nor the selector lever are oper-
ated.
This is signaled by an acoustic signal and
the flashing gear indicator. The gear dis-
play N appears in the instrument cluster.
A driving position can only be selected with
the driver's door closed.
When the vehicle is unlocked, a buzzing
sound in the area of the transmission sig-
nals that the system is ready for opera-
tion.<
Shiftlock
For your safety a driving position can only
be engaged from the selector lever
position N with the vehicle stationary with
the brake pedal depressed.
Observe the following when driving
Start off quickly on slopes. Do not
hold the vehicle on a hill by pressing
the accelerator, but apply the handbrake
instead. Otherwise overheating can occur
in the area of the transmission.<
R Reverse
Select R only when the vehicle is com-
pletely stopped.
N Neutral: idle
Engage prior to every engine start, refer
also to page 50.
Sequential mode
After every engine start, as soon as the
selector lever is brought into a forward gear
position and the brake is pressed, the
sequential mode is activated.
The gear is changed using the shift paddles
or selector lever.
Driving off is also possible in second gear,
e.g. when there is snow on the roadway.
D Drive mode
In the Drive mode, all forward gears are
shifted automatically.
To switch from the sequential to Drive
mode: briefly press the selector lever to the
right towards D.
For rapid acceleration, e.g. overtaking,
press the accelerator pedal as far down as
it will go Ð kickdown.
Kickdown:
The kickdown mode provides maximum
acceleration.
Press the accelerator pedal beyond the
full-throttle resistance point.
To return to the sequential mode: briefly
press the selector lever back to the right

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towards D or change the current gear using
the shift paddles or selector lever.
Gear changes
Using selector lever
>To shift up, briefly press the selector
lever towards +
>To shift down, briefly press towards Ñ.
Using shift paddles on steering
wheel
>To shift up, pull one of the shift paddles
>To shift down, press.
You accelerate from higher gears, e.g.
when overtaking, by shifting down manu-
ally.
In the following situations, the SMG in the
sequential mode assists you:
>Upshifts and downshifts are executed
only when they will result in a plausible
combination of engine and vehicle
speed; thus, for example, a downshift
that would cause the engine to overrev
will not be executed by the system
>When the vehicle is stopped, the trans-
mission automatically downshifts into
first gear
>Shortly before dropping below a gear-
dependent minimum speed, the trans-
mission downshifts automatically even
without your intervention.
Display in the instrument cluster
Gear display
R N 1 2 3 4 5 6
D1 D2 D3 D4 D5 D6
The gear currently selected, the selected
shifting mode and, if applicable, malfunc-
tions are displayed in the instrument clus-
ter.
Malfunctions
Indicator lamp
If the indicator lamp lights up, a
malfunction has occurred in the
transmission system.
While it will remain still possible to move
the selector lever to any desired position,
the transmission will revert to operation in
its default mode with only a limited number
of forward gears.
If this happens, avoid extreme engine loads
and consult the nearest BMW center.
Warning tone
In case of overheating in the area of the
transmission, an acoustic signal indicates
that you should stop or start off quickly if
possible so that the system can cool down
again.
Information on jump-starting and towing
begins on page 192.

Driving
54
Dynamic Driving Control
With Dynamic Driving Control, you can
choose between a standard and a sport
program.
Sport program
>The engine responds more spontane-
ously to accelerator pedal movements
>The steering becomes more direct and
provides even better road contact.
In addition, with SMG and an automatic
transmission:
>The shifting times are shorter
>The engine speed range is used opti-
mally in the Drive mode.
Activating the Sport program
In ignition key position 2.
Press the SPORT button.
The LED in the button lights up.
With an automatic transmission:
Activating the Dynamic Driving Con-
trol activates the Sport program of the
automatic transmission. This makes mov-
ing the selector lever form D to M/S unnec-
essary.<
Deactivating the Sport program
Press the SPORT button again.
The LED in the button goes out.
Acceleration assistant with SMG
The acceleration assistant enables opti-
mized vehicle acceleration at racing car
level on road surfaces with good adhesion.Do not use the acceleration assistant
too often, as otherwise components
will wear prematurely.<
1.Activate the Sport program
2.Press the DSC button, refer to page 79,
for longer than three seconds
3.Press the accelerator pedal down fully Ð
kickdown. The ideal starting-off engine
speed is set.
To maintain driving stability, drive
with the DSC on whenever possible.<
Information on jump-starting and towing
begins on page 192.
Automatic transmission
with Steptronic*
While you can drive as with any conven-
tional automatic transmission, you also
enjoy the option of shifting manually, refer
to page 55.
If you move the selector lever from posi-
tion D to the left into gearshift gate M/S,
this activates the sports-style shift pro-
grams of the automatic transmission. As
soon as you move the selector lever slightly
towards + or Ð, the Steptronic shifts gear
and manual operation is activated. If you
wish to use the automatic function again,
move the selector lever to the right into
position D.
Selector-lever positions
P R N D M/S + Ð
Possible displays
P R N D DS M1 M2 M3 M4 M5 M6

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Changing the selector-lever
positions
An interlock prevents inadvertent gear-
shifts into selector-lever positions R and P.
To cancel the interlock, press the button on
the front of the selector lever knob, refer to
arrow.
Press the brake pedal before shifting
out of P or N; the shift command will
not be executed unless the brake is
applied: Shiftlock.
To prevent the vehicle from creeping after
you select a driving position, maintain pres-
sure on the brake pedal until you are ready
to start.<
To prevent the vehicle from rolling,
always select position P and engage
the handbrake before leaving the vehicle
with the engine running.
Never leave an unattended vehicle with the
engine running, as such a vehicle repre-
sents a potential safety hazard.<
P Parking
Select P only when the vehicle is com-
pletely stopped. The rear wheels are
blocked.
R Reverse
Select R only when the vehicle is com-
pletely stopped.
N Neutral
Select N only if your journey is interrupted
for a long period.
D Drive Ð automatic driving position
Position for normal vehicle operation. All
forward gears are available.Under normal operating conditions, fuel
consumption is lowest when driving in
position D.
Kickdown
A kickdown provides you with maximum
acceleration and the maximum road speed
in position D.
Press the accelerator pedal beyond the
full-throttle resistance point.
M/S manual operation and Sport
program
Shifting from D into M/S activates the Sport
program and this is indicated with D S in the
gear display. This position is recom-
mended if a performance-oriented driving
style is desired.
The first time the selector lever is even
slightly touched, the automatic transmis-
sion shifts from the Sport program into
manual operation.
If you start to move the selector lever
towards +, the transmission shifts
upwards; moving it towards Ð it shifts
downwards. The gear display shows M1
through M6.
Upshifts and downshifts are executed only
when they will result in a plausible combi-
nation of engine and vehicle speed; thus,
for example, a downshift that would cause
the engine to overrev will not be executed
by the system. The selected gear appears
briefly in the instrument cluster, followed by
the current gear.
To obtain maximum acceleration, for
passing maneuvers, etc., during
operation in the manual mode, use the
kickdown or downshift manually.<