2008 BMW 335XI SEDAN ABS

Driving
64 Press the lever beyond the resistance point,
arrow 1, until the desired speed is reached.
The vehicle accelerates without pressure on
the accelerator pedal. The system stores and
maintains the speed.
Decreasing speed
Repeatedly pull the lever to the resistance point
or beyond, arrow 2, until the desired speed is
displayed.
>Each time the lever is pulled to the resis-
tance point, the desired speed is decreased
by approx. 1 mph or 1 km/h.
>Each time the lever is pulled beyond the
resistance point, the desired speed is
reduced by up to 5 mph or 10 km/h until the
minimum speed of 20 mph or 30 km/h is
achieved.
The system stores and maintains the speed.
Deactivating cruise control
Tap the lever upwards or downwards, arrow3.
The displays on the speedometer disappear.
In addition, the system is automatically deacti-
vated:
>When you brake the vehicle
>When you switch gears very slowly or shift
to idle in cars with manual transmission
>When you select the automatic transmis-
sion's neutral position N
>When you activate DTC or deactivate DSC
>When DSC or ABS is intervening
Cruise control is not deactivated by depressing
the accelerator pedal. Once the accelerator
pedal is released, the stored speed is achieved
again and maintained.
Warning lamp
The warning lamp comes on when
cruise control has been deactivated
by applying the parking brake or as a
result of DSC intervention. A message appears
on the Control Display.
Resuming a speed stored beforehand
Press the button, arrow4. The last stored
speed is resumed and maintained.
In the following instances, the stored speed is
deleted and can no longer be resumed:
>When driving stability control systems are
intervening
>In cars with ma nua l trans mis sio n: when you
shift gears very slowly or shift to idle posi-
tion
>In cars with automatic transmission: when
you engage selector lever position N
>When the ignition is switched off
Displays in the instrument cluster
1Stored speed
2Selected speed is displayed briefly
If --- mph or --- km/h temporarily appears
in the instrument cluster display, it is pos-
sible that the system prerequisites for operation
are currently not met.
Calling up Check Control messages, refer to
page82.<
Malfunction
The warning lamp comes on when
the system has failed. A message
appears on the Control Display. You
can find more information starting on page81.
Active cruise control*
The concept
With active cruise control, you can select a
desired speed which is not only automatically

Controls
67Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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.
Otherwise, an accident risk could result.<
Deactivating cruise control
Press the lever upward or downward, arrow3.
The displays on the speedometer disappear.
In addition, the system is automatically deacti-
vated:
>When you brake the vehicle
>When the speed is reduced to below
20 mph or 30 km/h due to a traffic situation
>When you switch gears very slowly or shift
to idle in cars with manual transmission
>When you select the automatic transmis-
sion's neutral position N
>When you activate the Dynamic Traction
Control DTC
>When you deactivate the Dynamic Stability
Control DSC
>When DSC or ABS is intervening
>When the system does not recognize any
objects for a longer period of time, e.g. on
infrequently traveled roads without a shoul-
der or guard rails, or if the radar sensor is
covered with dirt, refer to page68
>When you apply the parking brake
When the system is deactivated, you
must brake the vehicle yourself and/or
maneuver as necessary, otherwise there is a
risk of accident.<
Warning lamp
The warning lamp comes on when
active cruise control has been auto-
matically deactivated due to a driving
speed below 20 mph or 30 km/h, an application
of the parking brake or a DSC intervention. A
message appears on the Control Display.
Resuming stored desired speed and
distance
Briefly press the button, arrow 4.
The stored speed and distance are regained
and maintained.
In the following instances, the stored speed is
deleted and can no longer be resumed:
>When driving stability control systems are
intervening
>In cars with manual transmission: when you
shift gears very slowly or shift to idle posi-
tion
>In cars with automatic transmission: when
you engage selector lever position N
>When the ignition is switched off
Displays in the instrument cluster
1Stored desired speed
2Shows yellow: vehicle detected ahead
Flashes in red: system cannot maintain dis-
tance; driver must brake the vehicle
Flashes in yellow: driving stability control
systems are intervening; cruise control is
deactivated
3Selected distance to vehicle ahead
The indicator lights up as soon as the sys-
tem is activated.

Driving
68 4Selected desired speed is temporarily dis-
played
If --- mph or --- km/h temporarily appears
in the instrument cluster display, it is pos-
sible that the system prerequisites for operation
are currently not met. Calling up Check Control
messages, refer to page82.<
Warning lamps
The indicator2 flashes in red; a
signal sounds.
The system indicates that you
must brake and/or maneuver the
vehicle yourself. Active cruise con-
trol cannot automatically restore the distance to
the vehicle ahead.
This indicator does not release you from your
responsibility to adapt your desired speed and
driving style to prevailing driving conditions.
The indicator 2 flashes in yellow.
The prerequisites for operating
active cruise control are not met,
e.g. as a result of ABS or DSC
interventions. Active cruise control
is deactivated. You can reactivate the system, if
desired, by tapping or pulling the lever when road and traffic conditions permit. It is not pos-
sible to resume a stored speed.
Radar sensor
The sensor's ability to detect vehicles ahead
may be restricted as a result of heavy rain, dirt,
snow or ice. If necessary, clean the radar sensor
located in the front bumper, see arrow. Be sure
to use particular care when removing any layers
of snow or ice from the sensor.
When the radar sensor is not properly posi-
tioned, active cruise control cannot be activated
at all.
Malfunction
The warning lamp comes on when
the system has failed. A message
appears on the Control Display. You
can find more information starting on page81.
System limitations
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 to oncoming traffic, pedestrians or other types
of potential traffic such as a rider on horseback.
It is also possible that the system may not
detect smaller moving objects such as motor-
cycles or bicycles. Be especially alert when
encountering any of these situations as the sys-
tem will neither automatically brake, nor provide

Technology for driving comfort and safety
86 until "PDC" is selected and press the con-
troller.
6.Select "PDC display on" and press the con-
troller.
The PDC screen is activated.
The display is shown on the Control Display as
soon as PDC is activated.
System limitations
Even with PDC, final responsibility for
estimating the distance between the
vehicle and any obstructions always remains
with the driver. Even when sensors are pro-
vided, there is a blind spot in which objects can
no longer be detected. The system is also sub-
ject to the physical limits that apply to all forms
of ultrasonic measurement, such as those
encountered with trailer towbars and hitches,
thin or wedge-shaped objects, etc. Low objects
that have already been displayed, e. g. curbs,
can disappear again from the detection area of
the sensors before or after a continuous tone
sounds. Higher, protruding objects, e.g. ledges,
cannot be detected. Therefore, always drive
cautiously, otherwise there is a risk of personal
injury or property damage.
Loud sound sources outside or inside the car
can drown out the PDC signal.<
Driving stability control
systems
Your BMW has a number of systems that help
to maintain the vehicle's stability even in
adverse driving conditions.
ABS Antilock Brake System
ABS prevents locking of the wheels during
braking. Safe steering response is maintained
even during full braking. Active safety is thus
increased.
The ABS is operational every time you start the
engine. Braking safely, refer to page122.
Electronic brake-force distribution
The system controls the brake pressure in the
rear wheels to ensure stable braking behavior.
DBC Dynamic Brake Control
When you apply the brakes rapidly, this system
automatically produces the maximum braking
force boost and thus helps to achieve the short-
est possible braking distance during full brak-
ing. This system exploits all of the benefits pro-
vided by ABS.
Do not reduce the pressure on the brake for the
duration of the full braking application.
DSC Dynamic Stability Control
DSC prevents the driving wheels from losing
traction when you pull away from rest or accel-
erate. The system also recognizes unstable
driving conditions, for example if the rear of the
car is about to swerve or if momentum is acting
at an angle past the front wheels. In these
cases, DSC helps the vehicle maintain a safe
course within physical limits by reducing engine
output and through braking actions at 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 reduce the additional
safety margin again by taking risks, as this could
result in an accident.<

Things to remember when driving
122 The risk of hydroplaning increases with declin-
ing tread depth on the tires, refer also to Mini-
mum tread depth on page218.
Driving through water
Drive through water on the road only if it is
not deeper than 1 ft/30 cm, and then only
at walking speed at the most. Otherwise, the
vehicle's engine, the electrical systems and the
transmission may be damaged.<
Use the parking brake on inclines
On inclines, do not hold the vehicle for a
lengthy period using the clutch; use the
parking brake instead. Otherwise greater clutch
wear will result.<
For more information about the drive-off assis-
tant, refer to page88.
Braking safely
Your BMW is equipped with ABS as a standard
feature. Applying the brakes fully is the most
effective way of braking in situations in which
this is necessary. Since the vehicle maintains
steering responsiveness, you can still avoid
possible obstacles with a minimum of steering
effort.
Pulsation of the brake pedal, combined with
sounds from the hydraulic circuits, indicate that
ABS is in its active mode.
Driving in wet conditions
When roads are wet or there is heavy rain,
briefly exert gentle pressure on the brake pedal
every few miles. Monitor traffic conditions to
ensure that this maneuver does not endanger
other road users. The heat generated in this
process helps dry the pads and rotors to ensure
that full braking efficiency will then be available
when you need it.
Hills
To prevent overheating and the resulting
reduced efficiency of the brake system,
drive long or steep downhill gradients in the
gear in which the least braking is required. Even
light but consistent brake pressure can lead to high temperatures, brake wear and possibly
even brake failure.<
You can increase the engine's braking effect by
shifting down, all the way to first gear if neces-
sary. This strategy helps you avoid placing
excessive loads on the brake system. Down-
shifting in manual mode of the automatic trans-
mission, refer to page59.
Never drive with the clutch held down,
with the transmission in idle or with the
engine switched off; otherwise, engine braking
action will not be present or there will be no
power assistance to the brakes or steering.
Never allow floor mats, carpets or any other
objects to protrude into the area around the
pedals, otherwise pedal function could be
impaired.<
Corrosion on brake rotors
When the vehicle is driven only occasionally,
during extended periods when the vehicle is not
used at all, and in operating conditions where
brake applications are less frequent, there is an
increased tendency for corrosion to form on
rotors, while contaminants accumulate on the
brake pads. This occurs because the minimum
pressure which must be exerted by the pads
during brake applications to clean the rotors is
not reached.
Should corrosion form on the brake rotors, the
brakes will tend to respond with a pulsating
effect that even extended application will fail to
cure.
When the vehicle is parked
Condensation forms while the automatic cli-
mate control is in operation, and then exits
under the vehicle. Traces of condensed water
under the vehicle are therefore normal.
Before driving into a car wash
For general information about taking care of
your BMW, refer to the Caring for your vehicle
brochure.

Mobility
219Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
The manufacturing date of tires is contained in
the tire coding:
DOT ... 0705 means that the tire was manufac-
tured in week 07 of 2005.
Run-Flat Tires
The symbol identifying Run-Flat Tires is a circle
with the letters RSC on the sidewall.
Run-Flat Tires comprise a conditionally self-
supporting tire and a special rim. The reinforce-
ment in the sidewalls ensures that the tire can
continue to be used subject to certain restric-
tions, even if depressurized.
For information on continuing to drive with a flat
tire, refer to Indication of a flat tire, page90.
New wheels and tires
Have new wheels and tires installed only
by your BMW center or tire shop that
works according to BMW repair procedures
with correspondingly trained personnel. If this
work is not carried out properly, there is a dan-
ger of subsequent damage and related safety
hazards. Make sure that the new wheels are bal-
anced.<
Retreaded tires
BMW recommends that you do not use
retreaded tires, since driving safety may
be impaired. The causes for this include poten-
tially different tire casing structures and often
wide variations in tire age, which can result in a
limited service life.<
Correct wheels and tires
When mounting new tires or changing over
from summer to winter tires and vice versa,
mount Run-Flat Tires for your own safety. In the
event of a flat, no spare wheel is available. Your
BMW center will be glad to advise you.
For safety reasons, BMW recommends
that damaged Run-Flat Tires be replaced
rather than repaired. Otherwise, subsequent
damage cannot be ruled out.<
BMW recommends that you use only
wheel and tire combinations that BMW
has tested and approved for your particular
vehicle. Variations in factors such as manufac-
turing tolerances mean that even wheels and
tires with identical official size ratings could
actually have different dimensions, which could
lead to body contact and thus to severe acci-
dents. If non-approved wheels and tires are
used, BMW cannot evaluate their suitability,
and therefore cannot guarantee their driving
safety.<
You can inquire about the right wheel/tire com-
bination at your BMW center.
The correct combination of wheels and tires is
also necessary to ensure reliable operation of
various vehicle systems such as ABS, DSC or
RPA.
To maintain good handling and vehicle
response, use only tires of a single brand and
tread configuration. After a tire has been dam-
aged, mount the previous wheel and tire combi-
nation again as soon as possible.
Wheels with Tire Pressure Monitor
TPM electronics
When mounting new tires or changing over
from summer to winter tires, or vice versa, only
use wheels with TPM electronics; otherwise the
Tire Pressure Monitor may not be able to detect
a puncture, refer to page90. Your BMW center
will be glad to advise you.

Everything from A - Z
252
Everything from A - Z
Index
"..." Identifies Control Display
texts used to select
individual functions and
refers you to the page where
these texts can be found.
A
ABS Antilock Brake
System86
ACC, refer to Active cruise
control64
Accident, refer to Sending an
Emergency Request235
Activated-charcoal filter for
automatic climate
control104
"Activation time"104
Active cruise control64
– indicator lamps67
– malfunction68
– selecting distance66
– sensor68
Active steering93
– warning lamp93
Adaptive Head Light98
"Add digits" for mobile
phone190
Additives
– coolant224
"Address book" in
navigation138
Address for navigation
– deleting140
– entering130,138
– selecting139
– storing138
– storing current position139
"Add to destination
list"133,135
Adjusting temperature inside
the car, refer to Automatic
climate control101Adjusting the thigh support44
Adjusting the tone during
audio operation, refer to
Tone control157
Airbags94
– indicator/warning lamp95
– sitting safely43
Air conditioning mode
– automatic climate
control101
– ventilation103
Air distribution
– automatic102
– individual101
Air flow rate102
Airing, refer to Ventilation103
Air pressure, refer to Tire
inflation pressure208
Air recirculation, refer to
Recirculated-air mode102
"Air recirculation on / off"51
Air supply
– automatic climate
control101
– ventilation103
Air vents100
AKI, refer to Fuel
specifications207
Alarm system35
– avoiding unintentional
alarms36
– interior motion sensor36
– switching off an alarm36
– tilt alarm sensor36
"All channels" for satellite
radio167
All-season tires, refer to
Winter tires220
"All stations", displaying with
the radio160
All-wheel drive, refer to
xDrive87
"AM", waveband156,160Ambient air, refer to
Recirculated-air mode102
Antenna for mobile phone182
Antifreeze
– coolant224
– washer fluid62
Anti-theft alarm system, refer
to Alarm system35
Anti-theft system29
Approved axle loads, refer to
Weights245
Approved gross vehicle
weight, refer to Weights245
Armrest, refer to Center
armrest110
Arrival time, refer to
Computer73
Arrival time, refer to Starting
destination guidance143
Arrow display for
navigation144
"Arrow display" in
navigation144
Ashtray
– front111
– rear112
Assistance systems, refer to
Driving stability control
systems86
Assistance window20
– refer to iDrive20
AUC Automatic recirculated-
air control102
"Audio"159,163
Audio156
– controls156
– switching on/off156
– tone control157
– volume157
"Audio", refer to Tone
control157
Audio device, external110

Reference 253
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Automatic
– air distribution102
– air flow rate102
– cruise control63,64
– headlamp control96
– service notification199
– storing of stations161
Automatic climate control100
– automatic air
distribution102
– settings via iDrive101
Automatic curb monitor49
"Automatic programs" with
automatic climate
control102
Automatic recirculated-air
control AUC102
Automatic station search161
Automatic transmission with
Steptronic58
– interlock58,59
– overriding selector lever
lock60
– shiftlock, refer to Changing
selector lever position59
– sport program59
– towing237
– tow-starting237
"Automatic ventilation"104
AUTO program for automatic
climate control102
"Auto Request"199
"Autostore"
– on the radio162
"AUX"156,175,177
– AUX-In port175
– USB-audio interface176
AUX-IN
– port110
AUX-In port175
Average fuel consumption73
– setting the units76
Average speed73
"Avoid ferries" in
navigation141
"Avoid highways" in
navigation141
Avoid highways in
navigation141Avoiding unintentional
alarms36
"Avoid tollroads" in
navigation141
Axle loads, refer to
Weights245
"A - Z"189
,190
B
Backrest contour, refer to
Lumbar support45
Backrests, refer to Seat
adjustment44
Backrest width adjustment45
Back seats
– refer to Rear seats46
Backup lamps
– replacing bulb232
Backup lamps, refer to Tail
lamps231
Balance, tone control157
Band-aids, refer to First-aid
pouch236
Bar, refer to Towing
methods238
Base plate for telephone or
mobile phone
– refer to Snap-in adapter in
the center armrest storage
compartment110
Bass, tone control157
Bass sounds, refer to Treble
and bass157
Battery233
– charging233
– disposal38,234
– jump starting236
– remote control28
– temporary power failure234
Battery renewal
– remote control38
– remote control for vehicle38
Being towed238
Belts, refer to Safety belts48
Belt tensioner, refer to Safety
belts48
Beverage holders, refer to
Cup holders111Blower, refer to Air flow
rate102
Bluetooth, refer to separate
Owner's Manual
"BMW Assist"198,199,200
BMW Assist
– activating202
– Concierge service200
– contacting BMW Customer
Relations200
– Roadside Assistance198
– services offered197
– TeleService199
"BMW Contact"192
"BMW Contact
Numbers"192
BMW Homepage4
BMW Maintenance
System226
"BMW Service settings"203
BMW webpage4
Bottle holders, refer to Cup
holders111
Brake assist, refer to Dynamic
Brake Control DBC86
Brake fluid, refer to Service
requirements76
Brake Force Display93
Brake lamps
– replacing bulb232
– two-stage93
Brake pads120
– breaking in120
Brake rotors122
– brakes120
– breaking in120
Brakes
– ABS86
– BMW Maintenance
System226
– breaking in120
– parking brake57
– service requirements76
Brakes, refer to Braking
safely122