2008 BMW 528I SEDAN cruise control

Driving
76 Active cruise control may brake when you
reduce the stored desired speed; however, the
driver must constantly monitor traffic and inter-
vene if necessary.
When you switch off the engine or ignition,
active cruise control is fully switched off, too,
and any settings you have selected are can-
celed.
Unexpected lane change
If a vehicle in front of you is behind a stopped
vehicle and unexpectedly changes lanes, you
must react yourself, as the system does not
react to stopped vehicles.
Swerving vehicles
When a vehicle swerves out of adjacent lanes
into your lane, the system does not detect the
vehicle until it is completely in your lane.
When a vehicle ahead suddenly swerves
into your lane, the system may not be able
to restore the selected distance automatically.
This also applies to great differences in speed
between your vehicle and vehicles ahead, e. g.
when quickly approaching a truck. Once the
system has established that a vehicle is indeed
in front of you, it will indicate that you must
brake and/or maneuver the vehicle yourself. Take action yourself, otherwise there is a risk of
an accident.<
Behavior in curves
If the selected desired speed for a curve is too
high, the system reduces the speed within a
curve. However, it cannot detect curves in
advance. Therefore, select a suitable speed at
the start of a curve.
Because of the limited range of the system, it is
possible that in curves or on the peaks and val-
leys of hilly roads, a vehicle ahead may be rec-
ognized late, or not at all. Therefore, it is up to
the driver to select a speed that is prudent in
view of the curves and terrain of the roadway.
In approaching a curve, it is possible that active
cruise control might react briefly to a vehicle in
the adjacent lane. In addition, the system can
sense if your vehicle is in a curve and may not
accelerate. If your vehicle decelerates in either
case, you can choose to overcome the deceler-
ation by briefly pressing the accelerator pedal.

Controls
77Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Driver interventions and your
responsibility
Anytime the driver presses down on the
accelerator pedal, any automatic braking
action by the system is interrupted and the dis-
tance indicator turns off until the pedal is fully
released. As soon as you fully release the accel-
erator, the system will once again control your
cruising speed and distance setting. While driv-
ing with the system activated, resting your foot
on the accelerator pedal will cause the system
not to brake even if necessary. Be certain that
floormats or other objects on the vehicle floor
do not interfere with movement of the accelera-
tor pedal.<
While active cruise control is capable of
braking your vehicle automatically when
you approach a slower vehicle ahead, it is
important to be aware that the ability of the sys-
tem to apply the brakes is also limited, e. g.
when you reduce your desired speed sharply. It
uses only a portion of braking system capacity
and does not utilize the full capacity of the vehi-
cle braking system. Therefore, the system can-
not decrease your speed due to large differ-
ences in speed between your vehicle and the
vehicle ahead. Example: when you approach a
vehicle traveling at a much lower speed than
your own speed such as approaching a toll
booth or when a much slower vehicle cuts in
front of you at close range.<

Technology for comfort, convenience and safety
92
Adaptive brake assistant*
In conjunction with the active cruise control
with the stop-and-go function, the adaptive
brake assistant ensures that the brake
responds even more quickly during braking
with the brake assistant.
DSC Dynamic Stability Control
DSC prevents traction loss in the driving wheels
when starting off and accelerating. The system
also identifies unstable driving conditions, such
as a loss of traction at the rear of the vehicle or
sliding of the vehicle in its front wheels. In these
cases, DSC helps the vehicle maintain a safe
course within physical limits by reducing engine
output and through braking actions in the indi-
vidual wheels.
The laws of physics cannot be repealed,
even with DSC. An appropriate driving
style always remains the responsibility of the
driver. Therefore, do not restrict the additional
safety margin with a risky driving style, as other-
wise there is a risk of an accident.<
Deactivating DSC
Press the button until the DSC indicator lamp in
the instrument cluster lights up, but not longer
than approx. 10 seconds. DTC Dynamic Trac-
tion Control and DSC are deactivated together.
Stabilizing and drive output promoting actions
are no longer executed. In addition, the stability
promoting intervention of the active steering
*
is deactivated, refer to page99.
A message appears on the Control Display.
Please note any supplementary information
that appears there.To increase vehicle stability, activate DSC again
as soon as possible.
Activating DSC
Press the button; the indicator lamp in the
instrument cluster goes out.
For better control
The indicator lamp flashes:
DSC controls the drive forces and
brake forces.
The indicator lamp lights up:
DSC is deactivated.
DTC Dynamic Traction Control
DTC is a version of DSC in which the drive out-
put is optimized for particular road conditions,
e.g. unplowed snow-covered roads. The sys-
tem assures the maximal drive output, but with
reduced driving stability. It is therefore neces-
sary to drive with appropriate caution.
You may find it useful to briefly activate DTC
under the following special circumstances:
>When driving on snowy inclines, in slush, or
on unplowed, snow-covered road surfaces
>When rocking a stuck vehicle free or start-
ing off in deep snow or on loose ground
>When driving with snow chains
*
Activating DTC
Press the button briefly; the DTC indicator lamp
in the instrument cluster lights up.

Controls
93Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
For better control
The indicator lamp flashes:
DTC controls the drive forces and
brake forces.
The indicator lamp lights up:
DTC is activated.
Deactivating DTC
Press the button again; the DTC indicator lamp
in the instrument cluster goes out.
xDrive on 528xi, 535xi
xDrive is the 4-wheel drive system of your
BMW. The combined effects of xDrive and DSC
further optimize the traction and dynamic driv-
ing characteristics. The 4-wheel drive system
xDrive variably distributes the drive torque to
the front and rear axle depending on the driving
situation and prevailing road conditions.
HDC Hill Descent Control on 528xi,
535xi
The concept
HDC is a system for driving downhill in steep
terrain. This system reduces vehicle speed on
steep downhill gradients, thus allowing you to
maintain even better control of your BMW
under these conditions. The vehicle moves at
approximately twice walking speed without
active intervention from the driver.
HDC is available for activation at vehicle speeds
below approx. 22 mph/35 km/h. When driving
down steep hills with a speed below approx.
22 mph/35 km/h, the vehicle reduces speed
automatically down to approximately double
walking speed, approx. 7 mph/12 km/h, and
then maintains this speed at a constant.
You can use the accelerator or brakes to vary
this automatically controlled speed within a
range extending from approx. 3 mph/5 km/h to
15 mph/25 km/h.
You can specify a target speed within the same
range by using the lever of the cruise control
*.
Activating HDC
You can activate HDC:
>with the programmable buttons on the
steering wheel, refer to page54
>using iDrive
iDrive, for operating principle refer to page16.
1.Press the button.
This opens the start menu.
2.Press the controller to open the menu.
3.Select "Settings" and press the controller.
4.Select "Vehicle / Tires" and press the con-
troller.
5.Change to upper field if necessary. Turn the
controller until "HDC" is selected and press
the controller.
6.Select "HDC on" and press the controller.
HDC is shown in the instrument cluster.
If the vehicle is automatically braked, a message
is displayed on the Control Display for approx.
20 seconds.
Deactivating HDC
When you use the programmable buttons on
the steering wheel or via iDrive, the HDC display
goes out.
HDC is automatically deactivated in the follow-
ing situations:
>Above approx. 37 mph/60 km/h
>After switching off the ignition
Using HDC
Manual transmission:
Use HDC in low gears and reverse gear.

Technology for comfort, convenience and safety
102
Operational readiness of airbag system
From radio readiness, refer to page61, the
warning lamp lights up briefly, indicating the
operational readiness of the entire airbag sys-
tem and the safety belt tensioners.
Airbag system malfunction
>Warning lamp does not light up from radio
readiness.
>Warning lamp lights up continuously.
Have the airbag system checked immedi-
ately in case of a malfunction, otherwise
there is a danger that the airbag system may not
respond in the expected manner in an accident
despite an impact of corresponding intensity.<
Head-Up Display*
The concept
With the Head-Up Display important informa-
tion is projected into the driver's field of view,
e.g. navigation instructions. This enables you to
take in this information without looking away
from the road.
Switching on/off
Press the button.
1Navigation instructions
2Display
>Cruise control
>Active cruise control
>Leaving lane warning
3Speed
Selecting displays
iDrive, for operating principle refer to page16.
1.Press the button.
This opens the start menu.
2.Press the controller to open the menu.
3.Select "Settings" and press the controller.

Everything from A to Z
264
Everything from A to Z
Index
"..." Identifies Control Display
texts used to select
individual functions, and
indicates where to find them
in the text.
A
ABS Antilock Brake
System91
– indicator lamp94
ACC, refer to Active cruise
control70
Accepted calls202
Accessories6
Accident, refer to Emergency
request247
Acoustic signal, refer to Check
Control83
Activated-charcoal filter for
automatic climate
control118
"Activation time" for parked-
car ventilation119
Active cruise control70
– indicator lamp74
– radar sensors74
– selecting distance72
– warning lamps74
Active front head restraints49
Active seat52
Active seat ventilation52
Active steering99
– warning lamp100
Adapter for spare key28
Adaptive brake assistant92
Adaptive brake lamps, refer to
Brake force display100
Adaptive Head Light110
"Add digits" for mobile
phone202Additives
– coolant233
– engine oil, refer to Approved
engine oils233
"Address book" for navigation
system151
Address for navigation
– deleting153
– entering144,147
– selecting152
– storing151
– storing current position152
"Add to address book"151
"Add to destination
list"147,148
Adjusting active backrest
width47
Adjusting interior
temperature115
Adjusting the tone during
audio operation, refer to
Tone control169
Adjusting thigh support46
"After door opened"48
"After unlocking"48
Airbags100
– indicator/warning lamp102
– indicator lamp for front
passenger airbags101
– sitting safely45
Air distribution
– automatic115
– manual116
Airing, refer to Ventilation118
Air recirculation
– AUC Automatic
recirculated-air control117
– recirculated-air mode117
"Air recirculation on / off"55
Air supply, automatic climate
control114
Air volume116AKI, refer to Fuel quality219
Alarm system37
– avoiding unintentional
alarms38
– interior motion sensor38
– switching off alarm37
– switching off tilt alarm
sensor and interior motion
sensor38
– tilt alarm sensor38
"All channels"180
"All doors"30
All-season tires, refer to
Winter tires228
"All stations", calling up with
radio172,176
All-wheel drive, refer to
xDrive93
Alterations, technical, refer to
For your own safety5
Altering stretch of road160
"AM", reception
range169,172
Antenna, refer to Caring for
your vehicle brochure
Antenna for mobile phone194
Antifreeze
– coolant233
– washer fluid69
Antilock Brake System
ABS91
Anti-theft alarm system, refer
to Alarm system37
Anti-theft system, refer to
Central locking system29
Approved axle loads, refer to
Weights257
Approved engine oils233
Approved gross vehicle
weight, refer to Weights257
Armrest, refer to Center
armrest, rear127

Reference 265
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Around the center console14
Around the steering wheel10
Arrival time
– refer to Computer80
– refer to Starting destination
guidance156
"Arrow display" for navigation
system157
"Arrow display pop-up
instructions"143
Ashtray
– front125
– rear126
Assist, refer to
BMW Assist209
Assistance systems, refer to
Driving stability control
systems91
Assistance window20
"Assist. window off"21
AUC Automatic recirculated-
air control117
"Audio"169,171,176
Audio168
– controls168
– switching on/off168
– tone control169
– volume169
Audio device, external124
Automatic
– air distribution115
– air volume115
– cruise control70
– garage door opener121
– headlamp control108
– service notification211
– steering wheel
adjustment47
– storing stations174
– tailgate operation36
Automatic car washes137
– also refer to Caring for your
vehicle brochureAutomatic climate control114
– automatic air
distribution115
– parked car ventilation118
– switching on and off118
– ventilation in rear118
Automatic closing of doors,
refer to Automatic soft
closing33
Automatic curb monitor53
Automatic lighting
– refer to Automatic headlamp
control108
– refer to Daytime running
lamps109
– refer to High-beam
assistant110
– refer to Interior lamps
112
– refer to Pathway lighting109
– refer to Welcome lamps108
Automatic low beams, refer to
High-beam assistant110
"Automatic programs"115
Automatic roll-up cover,
Sports Wagon128
Automatic soft closing33
Automatic speed reduction for
descents, refer to HDC Hill
Descent Control93
Automatic station search173
Automatic transmission with
Steptronic63
– interlock64
– kick-down64
– manually unlocking and
locking transmission lock65
– shiftlock64
– towing250
– tow-starting251
– with comfort access39
"Automatic ventilation"119
AUTO program for automatic
climate control115
"Auto Request"211
"Autostore" on the
radio172,174
"AUX"169,188,189AUX-In connection188
"AUX IN" in audio mode188
Average fuel consumption80
– setting units88
Average speed, refer to
Computer79
"Avoid ferries" for navigation
system154
"Avoid highways" for
navigation system154
Avoiding freeways for
navigation154
Avoiding unintentional
alarms38
"Avoid tollroads" for
navigation system154
Axle loads, refer to
Weights257
"A - Z"202
B
Backrest contour, refer to
Lumbar support47
Backrests, refer to Seats46
Backrest width adjustment46
Back seats, refer to Rear seats
Backup lamps, replacing
bulbs240
"Balance", refer to Tone
control170
Band-aids, refer to First-aid
kit248
Bass, refer to Tone
control169
"Bass", tone control170
Battery, refer to Vehicle
battery245
– jump starting248
Battery replacement, remote
control for comfort
access40
BC button, refer to
Computer79
Being towed250
Belts, refer to Safety belts50
Beverage holder, refer to Cup
holders125

Everything from A to Z
268 Compact wheel
– inflation pressure221,222
– wheel change244
Compartment for remote
control, refer to Ignition
lock61
Compartments
– in cargo bay, Sports
Wagon129
– refer to Storage area
package, Sports Wagon130
– refer to Storage
compartments124
Compressed audio files182
Computer79
– displays on Control
Display80
– hour signal87
"Concert hall", refer to Tone
control171
"Concierge"212
Concierge service212
Condensation, refer to When
vehicle is parked136
Condition Based Service
CBS235
"Confirmation"31
Confirmation signals for
locking and unlocking31
Connecting car vacuum
cleaner, refer to Connecting
electrical devices126
Consumption, refer to
Average fuel
consumption80
Consumption indicator,
Energy Control79
Consumption statistics, refer
to Average fuel
consumption80
"Continue guidance to
destination?"157
"Contrast" with BMW Night
Vision106
Control Center, refer to
iDrive16Control Display, refer to
iDrive16
– setting brightness88
– switching off/on21
Controller, refer to iDrive16
Controls, refer to Cockpit10
Convenient operation
– glass sunroof30
– windows30
– windows and glass sunroof
with comfort access39
Coolant233
– checking level233
– temperature78
Cooling, maximum117
Cooling fluid, refer to
Coolant
233
Cooling function, automatic
climate control117
Cooling system, refer to
Coolant233
Copyright2
Cornering Brake Control
CBC91
Country of destination for
navigation145
Courtesy lamps112
Cradle for telephone or mobile
phone123
Cruise control69
– active cruise control70
Cruising range79
Cup holders125
Curb weight, refer to
Weights257
Current consumption, refer to
Energy Control79
"Current position"163
Current position
– displaying163
– entering152
– storing152
"Curve mode" with
BMW Night Vision106
"Customer
Relations"204,212
Cylinders, refer to Engine
data254
D
Dashboard, refer to
Cockpit10
Data, technical254
– dimensions255
– engine254
– weights257
"Date"87
Date78
– date format87
– retrieval78
– setting87
"Date format"87
"Daytime running lamps"109
Daytime running lamps109
DBC Dynamic Brake Control,
warning lamp94
"Deactivated"49
Decommissioning the vehicle,
refer to Caring for your
vehicle brochure
Defect
– door lock32
– fuel filler door218
– glass sunroof42
– luggage compartment lid34
– panorama glass sunroof44
– tailgate35
Defrosting windows116
Defrosting windows and
removing condensation116
Defrosting windshield, refer to
Defrosting windows116
Defrost position, refer to
Defrosting windows116
"Delete address book" for
navigation system153
"Delete all numbers" for
mobile phone203
"Delete data" for navigation
system153
"Delete" for mobile
phone203
Destination address
– deleting153
– entering144,147