brake sensor BMW 323I TOURING 2011 E91 Owner's Manual

Controls
67Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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 neutral 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 accidents.<
Warning lamp
The warning lamp comes on when
active cruise control has been auto-
matically deactivated, for example
due to a driving speed below 20 mph or 30 km/
h 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 neutral
>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.
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 page81.<

Driving
68
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.
The system cannot be activated if the sensor is
incorrectly aligned.
For US owners only
The transmitter and receiver units comply with
part 15 of the FCC/Federal Communications
Commission regulations. Operation is gov-
erned by the following:
FCC ID:
NF3 ACC2SCU 003YK04001 0000
Compliance statement:
This device complies with part 15 of the FCC
Rules. Operation is subject to the following two
conditions:
>This device must not cause harmful inter-
ference, and
>this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modifications or
changes to these devices could void the
user’s authority to operate this equipment.<
Malfunction
The warning lamp comes on when
the system has failed. A message
appears on the Control Display.
More information can be found beginning on
page80.

Controls
85Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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,
t h i n o r w e d g e - s h a p e d o b j e c t s , e t c . L o w o b j e c t s
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. Therefore,
always drive cautiously; otherwise, there is
a risk of personal injury or property damage.<
Driving stability control
systems
Your BMW has a number of systems that help
to maintain the vehicle's stability even in
adverse driving conditions.
Antilock Brake System ABS
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 page124.
Electronic brake-force distribution
EBV
The system controls the brake pressure in the
rear wheels to ensure stable braking behavior.
Dynamic Brake Control DBC
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.
Dynamic Stability Control DSC
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
s a f e t y m a r g i n a g a i n b y t a k i n g r i s k s , a s t h i s c o u l d
result in an accident.<

Mobility
231Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Maintenance
BMW Maintenance System
The BMW Maintenance System supports the
preservation of the traffic and operating safety
of your BMW. The objective is to optimize
efforts with respect to minimal vehicle mainte-
nance costs.
If and when you come to sell your BMW, a com-
prehensive record of servicing will prove a sig-
nificant benefit.
Condition Based Service CBS
Sensors and special algorithms take the differ-
ent driving conditions of your BMW into
account. Condition Based Service uses this to
determine the current and future service
requirements. By letting you define a service
and maintenance regimen that reflects your
own individual requirements, the system builds
the basis for trouble-free driving.
On the Control Display, you can have the
remaining times or distances for selected main-
tenance tasks and any legally prescribed dates
displayed, refer to page76:
>Engine oil
>Brake pads: separately for front and rear
>Brake fluid
>Vehicle check
>Legally mandated inspections depending
on local regulations
>Diesel particulate filter
*
Service data in the remote control
Your vehicle continuously stores service-
requirement information in the remote control
while you are driving. Your BMW Service Advi-
sor can read out this data from the remote con-
trol unit, and propose an optimized mainte-
nance approach. Whenever you take your car in
for servicing you should therefore hand your
BMW Service Advisor the remote control unit
that you last used.
Make sure that the date is always set cor-
rectly, refer to page80; otherwise, the
effectiveness of Condition Based Service CBS
is not assured.<
Service and Warranty Information
Booklet for US models and Warranty
and Service Guide Booklet for
Canadian models
Please consult your Service and Warranty Infor-
mation Booklet for US models and Warranty
and Service Guide Booklet for Canadian models
for additional information on service require-
ments.
BMW recommends that you have service
and repair operations performed at your
BMW center.
Take the time to ensure that these service pro-
cedures are confirmed by entries in your vehi-
cle's Service and Warranty Information Booklet
for US models and Warranty and Service Guide
Booklet for Canadian models. These entries
verify that your vehicle has received the speci-
fied regular maintenance.<

Mobility
233Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Care
Care products
Regular cleaning and care contributes signifi-
cantly to the value retention of your BMW.
BMW recommends cleaning and caring for your
vehicle with products that are approved by
BMW for this purpose.
Your BMW center will be happy to advise you on
the products and services available for cleaning
and caring for your BMW.
Original BMW Care Products have been
material tested, laboratory checked and
proven in the field, and offer optimal care and
protection for your vehicle.<
Do not use cleaners that contain alcohol
or solvents as these may result in dam-
age.<
Cleaning agents can contain substances
that are dangerous or hazardous to your
health. Therefore, follow the warning and safety
instructions on the packaging. When cleaning
inside the vehicle, always open the doors or
windows of the vehicle. In enclosed areas, pro-
vide for sufficient ventilation. Only use products
designed for cleaning vehicles.<
Exterior care
Washing the vehicle
Especially during the winter months,
ensure that the vehicle is washed more
frequently. Heavy soiling and road salt can lead
to vehicle damage.<
After washing the vehicle, apply the
brakes briefly to dry them; otherwise,
water can reduce braking efficiency over the
short term and the brake discs can corrode.<
Automatic car washes
Preference should be given to cloth car washes.
Before driving into a car wash, ensure that it is
suitable for your BMW. Check the following:
>Dimensions of your vehicle, refer to
page255.
>If necessary: fold in the exterior mirrors,
refer to page48.
>Maximum permissible tire width.
Avoid car washes with guide rail heights
over 4 in/10 cm; otherwise, there is the
danger of damaging chassis parts.<
Preparations before driving into an automatic
car wash:
>Unscrew the rod antenna
*.
>Deactivate the rain sensor
* to prevent unin-
tentional wiping.
>Sports Wagon: deactivate the rear window
wiper and protect it against damage. If nec-
essary, ask the operator of the car wash
about protective measures you should take.
>Remove additional add-on parts, e.g. spoil-
ers or phone antennas, if they could be
damaged.
Automatic transmission
Before driving into an automatic car wash, per-
form the following steps to ensure that the vehi-
cle can roll:
1.Insert the remote control into the ignition
lock, even with Comfort Access.
2.Move the selector lever to position N.
3.Release the parking brake.
4.Switch off the engine.
5.Leave the remote control in the ignition lock
so that the vehicle can roll.

Care
234
Steam jets/high-pressure washers
When using steam jets or high-pressure
washers, ensure that you maintain suffi-
cient clearance to the vehicle and do not exceed
a temperature of 1407/606.
Insufficient clearance or excessive pressure or
temperature can lead to component damage or
water penetration. Follow the operating instruc-
tions of the high-pressure washer.<
When using high-pressure washers, do
not spray against the sensors and cam-
eras, e.g. of the Park Distance Control or Rear
View Camera, for an extended period and main-
tain a distance of at least 1 ft/30 cm.<
Manual car wash
When washing the vehicle by hand, use large
quantities of water and car shampoo if neces-
sary. Clean the vehicle with a sponge or wash-
ing brush, applying light pressure only.
Before cleaning the windshield, deacti-
vate the rain sensor or switch off the igni-
tion to prevent unintentional activation of the
wipers.<
Observe local regulations pertaining to
washing vehicles by hand.<
Headlamps
Do not rub them dry and do not use abrasive or
corrosive cleaning agents.
Loosen dirt, e.g. insects, with shampoo or
insect remover and wash away with copious
quantities of water.
Thaw ice with a windshield deicer and do not
use an ice scraper.
Windows
Clean the inside and outside surfaces of the
windows and the mirrors with window cleaner.
Do not clean the mirrors with cleaners
containing quartz.<
Paintwork care
Regular care contributes to value retention and
protects the paintwork against the long-term
effects of damaging substances.
Region-specific environmental influences can
damage the vehicle paintwork. Therefore, it is
important to adapt the frequency and scope of
car care accordingly.
Immediately remove aggressive materials such
as spilled fuel, oil, grease, brake fluid, tree sap or
bird droppings to prevent damage to the paint-
work.
Repairing paintwork damage
Immediately repair scratches or similar
damage, such as that caused by stones
hitting the vehicle, where necessary to prevent
rusting.<
BMW recommends having paintwork damage
repaired by a professional paint repair work-
shop according to BMW specifications using
original BMW paint materials.
Preservation
A preservation treatment is necessary when
water no longer beads off the clean paintwork
surface. Only use products for paintwork pres-
ervation that contain carnauba or synthetic
waxes.
Rubber seals
Treat only with water or rubber care products.
Do not use silicon-containing care prod-
ucts on rubber seals; otherwise, noise
and damage could occur.<
Chrome parts
Carefully clean vehicle parts such as the radia-
tor grill, door handles or window frames with
copious quantities of water and a shampoo
additive, especially when roads are treated with
deicing salt. For additional treatment, use
a chrome polish.

Everything from A to Z
266
Everything from A to Z
Index
A
ABS Antilock Brake
System85
ACC, refer to Active cruise
control64
Accident, refer to Sending an
Emergency Request246
Activated-charcoal filter for
automatic climate
control105
Active Cruise Control
– indicator lamp67
– malfunction68
– selecting distance66
– sensor68
Active cruise control64
Active steering92
Adaptive brake light
– Brake Force Display93
Adaptive light control98
Additives
– coolant230
Address, entering131,137
Address for navigation
– entering131
Adjusting temperature inside
the car, refer to Automatic
climate control103
Adjusting the thigh support43
Airbags94
– indicator/warning lamp96
– sitting safely42
Air conditioning mode
– automatic climate
control103
– ventilation105
Air distribution
– automatic103
Airing, refer to Ventilation105
Air pressure, refer to Tire
inflation pressure208Air recirculation, refer to
Recirculated-air mode104
Air supply
– automatic climate
control103
– ventilation105
Air vents102
Air volume104
AKI, refer to Fuel
specifications203
Alarm system33
– avoiding unintentional
alarms34
– interior motion sensor34
– switching off an alarm34
– tilt alarm sensor34
Albums of music
collection170
ALL program104
All-season tires, refer to
Winter tires224
All-wheel drive, refer to
xDrive86
AM, waveband153
Ambient air, refer to
Recirculated-air mode104
Antenna for mobile phone180
Antifreeze
– coolant230
– washer fluid62
Antilock Brake System
ABS85
Anti-theft alarm system, refer
to Alarm system33
Anti-theft system27
Approved axle loads, refer to
Weights257
Approved gross vehicle
weight, refer to Weights257
Armrest, refer to Center
armrest111
Arrival time, refer to
Computer74Ashtray112
Assist systems, refer to
Driving stability control85
AUC Automatic recirculated-
air control104
Audible instructions, refer to
Spoken instructions142
Audio150
– controls150
– switching on/off150
– tone control150
– volume150
Audio device, external111
Automatic
– air distribution103
– air volume103
– cruise control62,64
– headlamp control97
Automatic car washes233
Automatic climate control102
Automatic curb monitor49
Automatic high beams and
low beams, refer to High-
beam assistant99
Automatic recirculated-air
control AUC104
Automatic Service
Request199
Automatic transmission with
Steptronic57
– interlock58
– overriding selector lever
lock60
– shiftlock, refer to Changing
selector lever position58
– sport program59
– towing248
– tow-starting248
AUTO program for automatic
climate control103
AUX-IN
– port111
AUX-IN port173

Everything from A to Z
268 Care233
– automatic car washes233
– care products233
– carpets235
– CD/DVD drives236
– chrome parts234
– displays236
– exterior233
– fine wood parts235
– headlamps234
– high-pressure washer234
– interior235
– leather235
– light-alloy wheels235
– paintwork234
– plastic parts235
– rubber seals234
– safety belts235
– sensors and cameras235
– upholstery and cloth
trim235
– washing the car
manually234
– windows234
Cargo, securing126
Cargo area115
– capacity257
– Comfort Access35
– folding up the floor
panel117
– lamp, refer to Interior
lamps101
– opening from inside31
– opening from outside31
– partition net116
– roller cover115
Cargo area lid, refer to Trunk
lid/tailgate31
Cargo area net, refer to
Partition net116
Cargo loading125
– securing cargo126
– stowing cargo126
– vehicle125
Car jack
– jacking points244
Car key, refer to Integrated
key/remote control26Car phone
– installation location, refer to
Center armrest111
– refer to separate Owner's
Manual
Car phone, refer to
Telephone180
Car radio, refer to Radio153
Car shampoo235
Catalytic converter, refer to
Hot exhaust system123
CD, audio playback162
CD changer161,166
– controls150
– fast forward/reverse163
– filling or emptying the
magazine166
– random play sequence162
– selecting a track162
– switching on/off150
– tone control150
– volume150
CD player161
– controls150
– fast forward/reverse163
– random play sequence162
– selecting a track162
– switching on/off150
– tone control150
– volume150
Center armrest111
Center brake lamp
– replacing bulb243
Center console, refer to
Around the center
console14
Central locking
– from inside30
– from outside27
Central locking system27
– Comfort Access34
– hotel function32
– setting unlocking
characteristics28
Changes, technical, refer to
For your own safety5
Changing bulbs, refer to
Lamps and bulbs238Changing the language on the
Control Display83
Changing the measurement
units on the Control
Display76
Changing wheels244
Chassis number, refer to
Engine compartment226
Check Control80
Check Gas Cap202
Child restraint fixing system
LATCH52
Child restraint systems51
Child safety locks54
Child seats, refer to
Transporting children
safely51
Chrome parts235
Chrome polish235
Cigarette lighter, refer to
Lighter113
Cleaning headlamps61
– washer fluid62
Cleaning your BMW, refer to
Care233
Climate control
– automatic air
distribution103
Clock71
– 12h/24h mode79
– setting the time and date79
– setting time79
Closing
– from inside30
– from outside27
Clothes hooks112
Cockpit10
Cold start, refer to Starting the
engine56
Comfort Access34
– replacing the battery36
Comfort access, refer to
Comfort Access34
Comfort area, refer to Around
the center console14
Compartment for remote
control, refer to Ignition
lock55
Compass109

Reference 279
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Temperature
– automatic climate
control103
– changing unit of measure76
– coolant, refer to Coolant
temperature72
Temperature display
– outside temperature71
– outside temperature
warning71
– setting the units76
Tempomat, refer to Cruise
control62
Tensioning straps, refer to
Securing cargo126
The individual vehicle5
Third brake lamp, refer to
Center brake lamp243
Through-loading system114
Through-loading system,
refer to Expanding the cargo
area115
Tilt alarm sensor34
Tilt function, passenger side
mirror49
Timer, refer to Preselecting
switch-on times106
Tire inflation pressure208
– loss89,90
Tire pressure monitoring,
refer to Flat Tire Monitor88
Tire Pressure Monitor
TPM89
– resetting the system90
– system limitations89
– warning lamp91
Tire puncture, refer to Flat Tire
Monitor89
Tire Quality Grading221Tires
– age221,223
– air loss91
– breaking in122
– changing, refer to Changing
wheels244
– condition222
– damage222
– inflation pressure208
– labels221
– minimum tread depth222
– new wheels and tires223
– pressure monitoring, refer to
Flat Tire Monitor88
– pressure monitoring, refer to
Tire Pressure Monitor
TPM89
– puncture89
– replacing223
– size221
– storage
224
– tread depth222
– wear indicators, refer to
Minimum tread depth222
– wheel/tire combination, refer
to Correct wheels and
tires223
– winter tires224
TMC station, refer to Traffic
bulletins144
Tone
– control150
– middle setting152
Tools, refer to Onboard
vehicle tool kit237
Top 50 of music
collection170
Torque, refer to Engine
data254
Tow bar249
Tow fitting249
– screw thread249
Tow fittings for tow-starting
and towing away249
Towing248
– car with automatic
transmission248
– methods249
Towing and tow-starting248Town/city, for navigation131
Tow rope250
Tow-starting248,250
TPM, refer to Tire Pressure
Monitor89
Track
– selecting on CD162
Traction control, refer to
Dynamic Stability Control
DSC85
Traffic bulletins
– categories145
Traffic bulletins, filtering145
Traffic bulletins for
navigation144
– display in map view145
– during destination
guidance146
Traffic jam
– displaying traffic
bulletins144
Transmission
– automatic transmission with
Steptronic57
– manual transmission57
– overriding selector lever lock
for automatic transmission
with Steptronic60
Transmission interlock
– refer to Changing selector
lever position58
– refer to P Park58
Transporting children
safely51
Transport securing devices,
refer to Securing cargo126
Tread depth, refer to Minimum
tire tread222
Trip, deleting139
Trip, storing139
Trip computer, refer to
Displays on the Control
Display74
Trip-distance counter, refer to
Trip odometer71
Triple turn signal activation60
Trip odometer71
Trips, changing139
Trunk, refer to Cargo area115