BMW 525I 2006 Repair Manual

Driving
60 It is also possible to start off in second gear, e. g.
in slippery conditions.
In the following situations, SMG thinks for 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.
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 accel-
eration.
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.
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.
Activating system
Press the SPORT button.
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.

Controls
61Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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, otherwise components will wear
prematurely.<
1.Activate the Dynamic Traction Control.
2.Deactivate DSC, refer to page85.
3.Quickly press accelerator pedal all the way
down: kick-down. The ideal starting-off
engine speed is set.
To maintain the vehicle stability, reacti-
vate DSC afterward.<
Automatic transmission with
Steptronic*
In addition to fully automatic operation, you can
also manually shift with the Steptronic, refer to
page62.
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
>Only move the selector lever from posi-
tion P when the engine is running: interlock.>With the vehicle stopped, press the brake
before shifting out of P or N, otherwise the
selector lever is blocked: shiftlock.
To prevent the vehicle from creeping
after you select a driving position,
maintain pressure on the brake pedal until
you are ready to start.
A lock prevents accidentally shifting into the
selector lever positions R and P. To cancel the
lock, press the button on the front of the selec-
tor lever, refer to arrow.
P Park
Select only when the vehicle is stationary.
The rear wheels are locked.
R Reverse
Select only when the vehicle is stationary.
N Neutral
Can, for example, be engaged 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, the fuel
consumption is lowest when driving in posi-
tion D.
Kick-down
The kick-down mode provides maximum accel-
eration: press the accelerator pedal beyond the
full-throttle resistance point.

Driving
62
Sport program and
manual operation 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 rec-
ommended 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.
Deactivating selector lever interlock
If the selector lever is blocked in the position P
even though the button on the selector lever is
pressed, the selector lever interlock can be
deactivated:1.Unclip the sleeve of the selector lever.
2.Pull the sleeve over the selector lever.
3.Press the lever at the point marked in red
with the screwdriver from the onboard tool-
kit, refer to page203, and move the selector
lever into the desired position.
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.<
Signaling for a short time
Press lever to resistance point and hold for as
long as you wish to signal.

Controls
63Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Triple turn signal activation
Press the lever to the resistance point; the turn
signal flashes three times.
You can activate or deactivate this function.
iDrive, for principle details, refer to page16.
1.Open the start menu.
2.Press the controller to open the menu.
3.Select "Vehicle settings" and press the
controller.
4.Select "Lighting" and press the controller.
5.Select "Triple turn signal activation" and
press the controller.
Triple turn signaling is activated.
Wiper system
1Switching on wipers
2Switching off wipers or brief wipe
3Activating/deactivating rain sensor
4Cleaning windshield and headlamps
5Adjusting rain sensor
sensitivity level
Switching on wipers
The lever automatically returns to its initial posi-
tion when released.
Normal wiper speed
Press once.
The system reverts to operation in the intermit-
tent mode when the vehicle is stationary.
Fast wiper speed
Press twice or press beyond the resistance
point.
The system reverts to normal speed when the
vehicle is stationary.
Rain sensor
The wiper operation is controlled automatically
as a function of the rain intensity. The rain sen-
sor is located on the windshield, directly in front
of the interior rearview mirror.
Activating rain sensor
Press the button, arrow3. The LED in the but-
ton lights up.
Adjusting rain sensor sensitivity level
Turn the knurled wheel5.
Deactivating rain sensor
Press the button again, arrow3. The LED goes
out.
Deactivate the rain sensor when passing
through an automatic car wash. Failure to
do so could result in damage caused by undes-
ired wiper activation.<
Cleaning windshield and headlamps*
The system sprays washer fluid against the
windshield and activates the wipers for a brief
period.

Driving
64 When the vehicle lighting system is switched
on, the headlamps are cleaned at regular and
appropriate intervals.
Do not use the washers if there is any
danger that the fluid will freeze on the
windshield. If you do so, your vision could be
obscured. To avoid freezing, use a washer fluid
antifreeze, refer to Washer fluid. Do not use
washing mechanisms when the washer fluid
reservoir is empty, otherwise you will damage
the washer pump.<
Windshield washer nozzles
Both windshield washer nozzles are automati-
cally heated with the engine running or the igni-
tion switched on.
Sports Wagon:
Rear window wiper
1Intermittent mode. When reverse gear is
engaged, continuous operation is switched
on automatically.
2Cleaning the rear window.
Do not use washing mechanisms when
the washer fluid reservoir is empty, other-
wise you will damage the washer pump.<
Washer fluid
Washer fluid antifreeze is flammable.
Always keep it well away from sparks and
open flames, and store it in tightly closed con-
tainers well out of the reach of children. Always
observe the instructions for use provided on the
containers.<
Washer fluid reservoir
Fill with water and – if required – with a washer
antifreeze, according to manufacturer's recom-
mendations.
In order to maintain the mixture ratio, mix
the washer fluid before filling.<
Capacity
Sedan:
approx. 3.2 US quarts/3 liters, with headlamp
washer system
* approx. 5.3USquarts/5liters.
Sports Wagon: approx. 5.3 US quarts/5 liters.
Cruise control*
The concept
The cruise control is available for use at speeds
of approx. 20 mph/30 km/h and higher. The
vehicle stores and maintains the speed that you
set using the lever mounted on the steering col-
umn.
Do not use the cruise control under driv-
ing conditions that do not permit a con-
stant speed, e.g. when driving on winding
roads , in heavy traffic or in poor roa d co nditions
such as snow, rain, ice, and loose road surface.
Otherwise you could loose control of the vehi-
cle and cause an accident.<

Controls
65Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
One lever for all functions
1Maintaining speed, storing speed, and
accelerating
2Maintaining speed, storing speed, and
decelerating
3Interrupting cruise control
4Resuming stored speed
Maintaining speed, storing speed,
and accelerating
Press lever to resistance point, arrow 1:
The speed currently being driven is maintained
and stored. The display1 in the speedometer,
see below, indicates this regulated speed.
Every time you press the lever, the vehicle's
speed increases by roughly 1 mph/1 km/h.
Press lever to resistance point for a longer time:
The vehicle accelerates without pressure on
the accelerator pedal. The system maintains
and stores your current speed as soon as you
release the lever.
Press the lever beyond the resistance point:
increase speed by 5 mph/10 km/h.
If, on a downhill grade, the engine's braking
effect is not sufficient, the controlled speed can
be exceeded. Speed can drop on uphill grades if
the engine output is insufficient.
Maintaining speed, storing speed, and
decelerating
Pull the lever, arrow2:
Functions are the same as1, only the vehicle
speed is reduced.
Interrupting cruise control
Press the lever up or down, arrow3.
In addition, cruise control is automatically deac-
tivated:
>When the brakes are applied
>When the clutch pedal is depressed or the
automatic transmission/SMG is shifted into
the N position
>When the DSC comes on
Resuming stored speed
Press button4:
The stored speed is resumed and maintained.
Deactivating system
When the ignition is switched off, the system is
deactivated and the stored speed is deleted.
Displays in instrument cluster
1Stored desired speed
2Selected desired speed appears briefly
Active cruise control*
The concept
With active cruise control, you can select a
desired speed which is not only automatically
maintained when driving on open roadways, but
also varied to maintain a selected distance set-
ting as slower traffic is encountered.
Active cruise control is technologically
advanced over the familiar cruise control and is
a welcome relief from the constant adjustment
of speed that can accompany driving in traffic
on freeways or other high-speed thorough-

Driving
66 fares. Especially on longer trips, the system can
reduce fatigue and tension, while increasing
your enjoyment of driving. Please use it safely
and responsibly.
In addition to holding a steady cruising speed,
if you encounter slower vehicles ahead, active
cruise control will, within the scope of given
possibilities, adjust your vehicle's speed auto-
matically so that you can flow with the traffic
without having to make constant adjustments.
If, for example, while cruising at the selected
speed, you begin to approach a slower vehicle
ahead of you in the same lane, the system will
reduce your vehicle's speed to the same as that
of the vehicle ahead to maintain your selected
distance setting between your vehicle and the
vehicle ahead. You can vary the distance, which
is additionally speed-dependent. Based on
your selected distance setting, the system
automatically decreases the throttle setting and
lightly applies the brakes if necessary. The vehi-
cle brake lamps will automatically illuminate to
signal a following driver to take action. In addi-
tion, it may be necessary for the vehicle or the
driver to downshift, depending on the kind of
transmission your vehicle is equipped with, to
maintain the distance setting selected. If the
vehicle ahead speeds up or when the lane
ahead becomes clear, your vehicle will acceler-
ate to the speed you have selected by increas-
ing the throttle setting and shifting gears auto-
matically or by the driver as needed. Your
selected speed will be held when driving down-
hill, too.
Active cruise control is not and must not
be used as a collision avoidance/warning
system.<
Since this active cruise control system is
a new technology and operates differ-
ently from conventional cruise control systems
which you may be accustomed to, you are
strongly urged to read all of the pages relating
to this system before use. Pay special attention
to the information contained in the Things to
know about active cruise control section begin-
ning on page69.<
Navigation system Professional*
If a navigation DVD is in the drive, refer to
page124, the system adjusts the accelerating
and braking behavior of the vehicle to the road
you are driving on.
When the vehicle position is unknown, e.g.
when you leave the map area, this influence of
the navigation system is not available.
Manual transmission
You can shift with the cruise control activated.
Shifting information is provided or the system
deactivates itself if you drive at very high or very
low engine speeds for a longer period.
SMG
In the Sequential mode, shifting information is
provided or the system deactivates itself if you
drive at very high engine speeds for a longer
period.
In the Drive mode the SMG acts similarly to an
automatic transmission in the D position.
Operating active cruise control
1Store and increase desired speed
2Store and decrease desired speed
3Deactivate system, refer to page68
4Resume stored desired speed and dis-
tance, refer to page68
5Select distance to vehicle driving ahead,
refer to page67
Maintaining current speed
Briefly press lever, arrow1, or briefly pull,
arrow2, at a driving speed of more than approx.
20 mph or 30 km/h.

Controls
67Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
The speed currently being driven is stored and
maintained. It is indicated on the speedometer
and briefly in the instrument cluster.
The controlled speed can drop on uphill grades
if the engine output is insufficient. If the engine
braking effect is not sufficient on a downhill
grade, the system lightly brakes the vehicle.
Setting desired speed
Adjust your desired speed to the traffic
conditions and remain ready to brake at
all times, otherwise accidents can occur. Great
differences in speed to the vehicle ahead, e. g.
when quickly approaching a truck or when
another vehicle swerves into your lane, cannot
be compensated for by the system.<
Increasing in steps
Briefly press the lever repeatedly up to the
pressure point or past the pressure point,
arrow1, until the desired speed is displayed.
>Each time the lever is briefly pressed up to
the pressure point, the desired speed
increases by approx. 1 mph or 1 km/h.
>Each time the lever is briefly pressed
beyond the pressure point, the desired
speed is increased by a maximum of 5 mph
or 10 km/h until the maximum speed of
110mph or 180km/h is reached.
The speed then displayed is stored and
reached on clear roads.
Increasing steplessly
Press the lever up to the pressure point or past
the pressure point, arrow1, until the desired
speed is reached.
The speed then displayed is stored and
reached on clear roads.
Decreasing steplessly
Pull the lever up to the pressure point or past
the pressure point, arrow2, until the desired
speed is displayed.
>Each time the lever is pulled up to the pres-
sure point, the desired speed decreases by
approx. 1 mph or 1 km/h.
>Each time the lever is pulled beyond the
pressure point, the desired speed is
decreased by a maximum of 5 mph or
10 km/h until the minimum speed of
20 mph or 30 km/h is reached.
The speed then displayed is stored and
reached on clear roads.
Select distance
>Rotary switch downward:
Increase distance.
>Rotary switch upward:
Decrease distance.

Driving
68 The selected distance is displayed in the instru-
ment cluster.
Use good judgment to select the appro-
priate following distance given road con-
ditions, traffic, applicable laws and driving rec-
ommendations for safe following distance.<
Deactivate system
Press the lever up or down. The displays in the
instrument cluster disappear.
You also deactivate the system when you
brake, shift very slowly or into neutral, or
engage the selector lever position N. In addi-
tion, the system is deactivated automatically:
>when you activate the DTC Dynamic Trac-
tion Control
>when you deactivate the DSC Dynamic Sta-
bility Control>When the system does not recognize any
objects for a longer time, e. g. on infre-
quently traveled roads without a shoulder or
guard rails, or if the radar sensor is covered
with dirt, refer to page69
>When the speed is reduced to below
20 mph/30 km/h due to a traffic situation
The system deactivates automatically
when the speed is set to below 20 mph/
30 km/h. A signal sounds and a message
appears in the Control Display. The active inter-
vention of the driver is required, otherwise acci-
dents can occur.<
Resume stored desired speed and
distance
Press button 4.
The displays appear in the instrument cluster.
When you switch off the ignition, the stored
desired speed is deleted.
Displays in instrument cluster
1Stored desired speed
2Lights up yellow: vehicle driving ahead is
detected
Flashes red, a signal sounds: the system
cannot establish the distance, apply the
brakes yourself
Flashes yellow: driving stability control sys-
tems intervene, the active cruise control is
deactivated
3Selected distance to vehicle driving ahead:
lights up as soon as the system is activated
4Selected desired speed appears briefly
If the display ACC --- mph/km/h briefly
appears in the instrument cluster, it might Distance 1
Distance 2
Distance 3
This distance is set when the
system is used for the first time
after starting the engine.
Distance 4

Controls
69Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
be that conditions necessary for operation are
not currently being met. To call up Check Con-
trol messages, refer to page77.<
Warning lamps
The display2 flashes red and a sig-
nal sounds.
The system requests that you
intervene by braking or with an
evasive maneuver. The active
cruise control cannot automatically restore the
distance to the vehicle driving ahead.
However, this display cannot relieve the driver
of the responsibility for adjusting the desired
speed and driving style to the traffic conditions.
The display 2 flashes yellow.
Automatic intervention by ABS or
DSC. The active cruise control
intervenes by braking until you
take over actively.
Radar sensor
Heavy rain, dirt, snow or ice can restrict the
detection of vehicles driving ahead. If neces-
sary, clean the front radar sensor under the
bumper. Exercise particular care when remov-
ing snow and ice.
If the sensor is not aligned properly, the active
cruise control cannot be activated.
Things to know about active cruise control
As with conventional cruise control sys-
tems, active cruise control in no way
diminishes or substitutes for the driver's own
personal responsibility, alertness and aware-
ness in adjusting speed, braking or otherwise
controlling the vehicle. The driver should
decide when to use the system on the basis of
road, traffic, visibility, and weather conditions.
Active cruise control is intended for use on
highway-type roadways where traffic is moving
relatively smoothly. Do not use this system in
city driving; heavy traffic such as during rush
hour; on curvy, winding roads, slippery roads or
roads with sharp curves such as highway off-
ramps; during inclement weather such as snow, strong rain or fog; or when entering inter-
changes, service/parking areas or toll booths.
It is also important to regulate your vehicle's
speed and distance setting within applicable
legal limits. Always be ready to take action or
apply the brakes if necessary, especially when
the system is actively following a vehicle in front
of you.<
Always remember that the range and abil-
ity of the system does have physical limi-
tations. It will not apply the brakes or decelerate
your vehicle when there is a slow-moving vehi-
cle, stopped vehicle or stationary object ahead
of you, as for example, at a traffic light or a
parked vehicle. Also, the system does not react