2005 BMW 525I SEDAN engine

Notes
6
For your own safety
Maintenance and repair
Advanced technology, e. g. the use of
modern materials and high-performance
electronics, requires specially adapted mainte-
nance and repair methods. Therefore, have cor-
responding work on your BMW carried out only
by a BMW center or a workshop that works
according to BMW repair procedures with cor-
respondingly trained personnel. If work is car-
ried out improperly there is a danger of conse-
quential damage and the related safety risks.<
California Proposition 65 Warning
California law requires us to issue the following
warning:
Engine exhaust and a wide variety of
automobile components and parts,
including components found in the interior fur-
nishings in a vehicle, contain or emit chemicals
known to the State of California to cause cancer
and birth defects and reproductive harm. In
addition, certain fluids contained in vehicles and
certain products of component wear contain or
emit chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
Battery posts, terminals and related accesso-
ries contain lead and lead compounds. Batter-
ies also contain other chemicals known to the
State of California to cause cancer. Wash your
hands after handling. Used engine oil contains
chemicals that have caused cancer in labora-
tory animals. Always protect your skin by wash-
ing thoroughly with soap and water.<
Parts and accessories
For your own safety, use genuine parts
and accessories approved by BMW.
When you purchase accessories tested and
approved by BMW and Genuine BMW Parts,
you simultaneously acquire the assurance that
they have been thoroughly tested by BMW to
ensure optimum performance when installed
on your vehicle.
BMW warrants these parts to be free from
defects in material and workmanship.
BMW will not accept any liability for damage
resulting from installation of parts and accesso-
ries not approved by BMW.
BMW cannot test every product made by other
manufacturers to verify if it can be used on a
BMW safely and without risk to either the vehi-
cle, its operation, or its occupants.
Genuine BMW Parts, BMW Accessories and
other products approved by BMW, together
with professional advice on using these items,
are available from all BMW centers.
Installation and operation of non-BMW
approved accessories such as alarms, radios,
amplifiers, radar detectors, wheels, suspension
components, brake dust shields, telephones,
including operation of any portable phone from
within the vehicle without using an externally
mounted antenna, or transceiver equipment, for
instance, CBs, walkie-talkies, ham radios or
similar accessories, may cause extensive dam-
age to the vehicle, compromise its safety, inter-
fere with the vehicle's electrical system or affect
the validity of the BMW Limited Warranty. Refer
to your BMW center for additional informa-
tion.<
Maintenance, replacement, or repair of
the emission control devices and sys-
tems may be performed by any automotive
repair establishment or individual using any cer-
tified automotive part.<

At a glance
13Reference
Controls
Driving tips
Communication
Navigation
Entertainment
Mobility
Indicator and warning lamps
The concept
Indicator and warning lamps and their combina-
tions are displayed in the display region1 and in
the display2. To better differentiate between
malfunctions, different symbols can be shown
on the display2.
Some lights in the display region1 are tested
for proper function by briefly lighting up during
starting of the engine or when the ignition is
switched on.
Acknowledging active functions
The following indicator lamps in the display
region1 indicate that the associated functions
are activated:
What to do in case of a malfunction
All warning lamps and indicator lamps not yet
listed are also accompanied by text messages
on the Control Display. These may contain
more information as to the cause of a malfunc-
tion and instructions on what to do.
Sometimes, warning lamps are also accompa-
nied by supplemental text messages on the
Control Display that are shown immediately.
Text messages that do not appear immediately
are stored and can be displayed subsequently.
For further information on displaying these
messages later, refer to Check Control on
page 67. Turn signals56
Handbrake engaged52
Handbrake engaged for Canadian
models
Front fog lamps88
DTC Dynamic Traction Control78
High beams/headlamp flasher88
DSC Dynamic Stability Control78

Controls
51Reference
At a glance
Driving tips
Communication
Navigation
Entertainment
Mobility
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.
Interlock on automatic transmission
>Only move the selector lever from posi-
tion P when the engine is running.
>To turn the key back to position 0 or to
remove it, first place the selector lever in
position P.
1 Steering unlocked
A slight steering wheel movement often makes
it easier to turn the key from 0 to 1.
Some vehicle systems are ready for operation.
2 Ignition switched on
All vehicle systems are ready for operation.
3 Start engine
Starting engine
Do not run the engine in closed rooms, as
otherwise the inhaling of toxic exhaust
gases can cause unconsciousness and death.
The exhaust gases contain carbon monoxide,
an odorless and colorless, but highly toxic gas.
Never leave an unattended vehicle with the engine running, as such a vehicle represents a
potential safety hazard.
To prevent the vehicle from rolling, always
select neutral position or position N and apply
the handbrake before leaving the vehicle with
the engine running.<
When starting the engine, do not press the
accelerator pedal.
Do not allow the engine to warm up by leaving it
running while the vehicle remains stationary.
Instead, begin to drive immediately at a moder-
ate engine speed.
Special starting conditions
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 tempera-
tures, below approx. 57/–156, at high
altitudes, over approx. 3,300 ft/1,000 m.
Avoid frequent starting in quick succes-
sion 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 overheating and damaging the cat-
alytic converter.<
Manual transmission
1.Apply the handbrake.
2.Gearshift lever in neutral position.
3.Press the clutch pedal.
If the clutch pedal is not depressed,
the engine will not start.<
4.Start the engine.
Do not end the starting procedure too early,
however after approx. 20 seconds at the lat-
est. Release the ignition key immediately as
soon as the engine starts.

Driving
52
SMG Sequential manual transmission
and automatic transmission
Your BMW is equipped with the convenience
starting feature. It is sufficient to turn the igni-
tion key into position 3 for only a short time and
then release it again. The system responds by
automatically engaging the starter for a certain
period and allowing it to run until the engine
starts, after which it then disengages automati-
cally.
SMG Sequential manual transmission
1.Press the brake pedal.
2.Place selector lever in position N.
3.Start the engine.
If the engine does not start, shift back to
the last gear selected, refer to Instrument
cluster display, and then shift into position N.<
Automatic transmission
1.Press the brake pedal.
2.Place selector lever in position P or N.
3.Start the engine.
Switching off engine
Do not remove the ignition key while the
vehicle is rolling, as otherwise the steer-
ing wheel lock will immobilize the steering.
When leaving the vehicle, remove the ignition
key and lock the steering. When parking on a
downhill incline, apply the handbrake, as other-
wise the vehicle could roll away.<
Manual transmission
1.Turn the ignition key to position 1 or 0.
2.Shift into first gear or reverse.
SMG Sequential manual transmission
1.Engage a driving position.
2.Turn the ignition key to position 1 or 0.
A signal sounds if the transmission is in
Neutral when the engine is switched off.
Automatic transmission
1.Engage selector lever position P.
2.Turn the ignition key to position 1 or 0.
Handbrake
The handbrake is primarily intended to prevent
the vehicle from rolling while parked; it brakes
the rear wheels.
Indicator lamp
The indicator lamp lights up, and an
acoustic signal also sounds when start-
ing off. The handbrake is applied.
Indicator lamp for Canadian models.
Applying
The lever locks in position automatically.
Releasing
Pull slightly upwards, press the button and
lower the lever.
If it becomes necessary under special cir-
cumstances to use the handbrake while
driving, it must not be pulled too sharply. In
doing so, continuously press the button of the
handbrake lever. Strong application of the
handbrake can lead to overbraking of the rear
axle and associated 'fishtailing' of the vehicle
rear end.
The brake lamps do not light up when the hand-
brake is applied.<
To prevent corrosion and one-sided brak-
ing action, occasionally apply the hand-

Controls
53Reference
At a glance
Driving tips
Communication
Navigation
Entertainment
Mobility
brake lightly when the vehicle is slowly coming
to a stop if the traffic conditions are suitable.<
Manual transmission
When shifting into 5th/6th gear, press the
selector lever toward the right, otherwise
an inadvertent shift into 3rd or 4th gear could
damage the engine.<
Reverse gear
Select only when the vehicle is stationary.
When pressing the gearshift lever to the left,
overcome some resistance.
The backup lamps switch on automatically
when the ignition key is in position 2.
SMG Sequential manual
transmission*
The concept
The SMG Sequential manual transmission is an
automated manual transmission in which an
electrohydraulic system handles the clutching
and gear changes.
You operate the SMG using the selector lever in
the center console and two shift paddles on the
steering wheel.
It offers you the following functions:
>Optional manual or automatic operation:
Sequential mode or Drive mode
>You have a choice of two driving programs:
Normal or Sport, refer to Dynamic Driving
Control page54 >Automatic downshifting and prevention of
incorrect shifting even in sequential opera-
tion
>Acceleration assistant, refer to page55.
The SMG is operational when the ignition key is
in position 2.
Selector lever positions
The current selector lever position is displayed
on the center console.
>R: Reverse
>N: Neutral
>One-touch functions for Sequential mode:
+: manual upshifting
–: manual downshifting
>D: Drive mode
The transmission automatically shifts into
N if the driver's door is opened with the
engine running and neither the pedals, the shift
paddles nor the selector lever are operated.
This is indicated by an acoustic signal and the
flashing display N in the instrument cluster.<
Gear display
R N 1 to 6
The currently engaged gear is displayed, pre-
ceded by a D in Drive mode.

Driving
54
Shiftlock
Press the brake pedal before shifting out of N;
the shift command will not be executed unless
the brake is applied.
R Reverse
Select only when the vehicle is stationary.
Sequential mode
After every engine start, as soon as the selector
lever is pushed to the right and the brake pedal
is pressed, the Sequential mode is activated.
You can shift up and down using the shifting
paddles or the selector lever. You do not need
to remove your foot from the accelerator to do
so.
It is also possible to start off in second gear, e. g.
in slippery conditions.
D Drive mode
In the Drive mode, all forward gears are shifted
automatically.
Shifting from Sequential mode to Drive mode:
press selector lever to the right toward D.
Kick-down:
For rapid acceleration, e. g. when passing, press
the accelerator pedal as far down as it will go.
You achieve maximum acceleration.
To switch back into the Sequential mode: press
selector lever to the right again toward D or shift
using the shifting paddles or the selector lever.
Start off quickly on slopes. Do not hold
the vehicle on a hill by pressing the accel-
erator, but apply the handbrake instead. Other-
wise overheating can occur in the transmission
region.<
Gear changes
Using selector lever
>To upshift, pull the selector lever back.
>To downshift, push the selector lever for-
ward.
Using shift paddles on steering wheel
>To upshift, pull one of the shift paddles.
>To downshift, press.
In the following situations, the SMG in Sequen-
tial mode assists you:
>Upshifts and downshifts are executed only
when they will result in a plausible combina-
tion 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 stationary, the trans-
mission automatically downshifts into first
gear.
>Shortly before dropping below a gear-
dependent minimum speed, the transmis-
sion downshifts automatically even without
your intervention.
Dynamic Driving Control
The Dynamic Driving Control makes it possible
for your BMW to react in an even more perfor-
mance-oriented manner at the push of a button:
>The engine responds more spontaneously
to accelerator pedal movements.
>Gearshifts are faster.
>The engine speed range is used optimally in
the Drive mode.
>Cruise control
*:
The stored speed is reached more quickly
when it is requested.

Controls
55Reference
At a glance
Driving tips
Communication
Navigation
Entertainment
Mobility
Activating system
Press the SPORT button with the ignition key in
position 2.
The LED in the button lights up and SPORT is
displayed in the instrument cluster.
Deactivating system
Press the SPORT button again.
The LED in the button and SPORT in the instru-
ment cluster go out.
Acceleration assistant
The acceleration assistant enables optimized
vehicle acceleration at racing car level on road
surfaces with good adhesion when starting off.
Do not use the acceleration assistant too
often, as otherwise components will wear
prematurely.<
1.Activate the Dynamic Traction Control.
2.Press the DTC button, refer to page78, for
longer than 3 seconds.
3.Quickly press accelerator pedal all the way
down: kick-down. The ideal starting-off
engine speed is set.
To maintain driving stability, do not deac-
tivate DSC if at all possible.<
Automatic transmission with
Steptronic
In addition to fully automatic operation, you can
also manually shift with the Steptronic, refer to
page56.
Selector lever positions
P R N D M/S + –
Displays in instrument cluster
P R N D DS M1 to M6
The selector lever position is indicated, and in
the manual mode the gear currently engaged.
Changing selector lever positions
An interlock prevents inadvertent gearshifts
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.
Shiftlock
Press the brake pedal before shifting out of P
or N; the shift command will not be executed
unless the brake is applied.
To prevent the vehicle from creeping after you
select a driving position, maintain pressure on
the brake pedal until you are ready to start.
P Park
Select only when the vehicle is stationary.
The rear wheels are locked.

Driving
56
R Reverse
Select only when the vehicle is stationary.
N Neutral
For example, engage in automatic car washes.
The vehicle can roll.
D Drive, automatic position
Position for normal vehicle operation. All for-
ward gears are available.
Under normal operating conditions, fuel con-
sumption is lowest when driving in position D.
Kick-down
The kick-down mode provides maximum accel-
eration: press the accelerator pedal beyond the
full-throttle resistance point.
Manual operation and Sport program
M/S
Move selector lever from position D toward the
left into the M/S shifting slot:
The sport program is activated and DS appears
in the instrument cluster. This position is
recommended for a performance-oriented
driving style.
When the selector lever is pressed forward or
back, the manual mode is activated and the
Steptronic shifts the gear. The instrument clus-
ter shows M1 through M6.
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. The
selected gear appears briefly in the instrument
cluster, followed by the current gear.To use the automatic function again, move the
selector lever to the right into position D.
Turn signals/
headlamp flasher
1High beams
2Headlamp flasher
3Turn signals
Using turn signals
Press the lever beyond the resistance point.
To turn off manually, press the lever to the
resistance point.
Atypically rapid flashing of the indicator
lamp indicates that a turn signal bulb
needs to be replaced.
After switching off the ignition, make sure that
the roadside parking lamps are not switched
on.<
Signaling for a short time
Press lever to resistance point and hold for as
long as you wish to signal.
Triple turn signal activation
Press the lever to the resistance point; the turn
signal flashes three times.
You can activate or deactivate this function.
Control Center, for principle details, refer to
page16.
1.Open the menu.
2.Select "Vehicle settings" and press the
controller.
3.Select "Light" and press the controller.