2005 BMW 325XI sensor

Technology for driving comfort and safety
68 thin and wedge-shaped objects, etc. Low
objects already indicated, such as a curb, may
enter the sensors' dead areas before a continu-
ous audible signal is given. Higher, protruding
objects, such as ledges, may not be detectable.
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 page99.
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 brake application. If the brake is
released, DBC will be switched off.
DSC Dynamic Stability Control
DSC prevents the driving wheels from losing
traction when you pull away from rest or accel-
erate. DSC 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 individual
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The laws of physics cannot be repealed,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.<
Deactivating DSC
Press the button for at least 3 seconds; the indi-
cator lamps for DSC in the instrument cluster
light up. Dynamic Traction Control DTC and
DSC have been simultaneously deactivated.
Stabilizing and drive-output promoting actions
are no longer executed.
To increase vehicle stability, activate DSC again
as soon as possible.
Activating DSC
Press the button again; the indicator lamps in
the instrument cluster go out.
To control
If the indicator lamp flashes:
DSC controls the drive forces and
brake forces.
If the indicator lamps are on:
DSC has been completely deacti-
vated.
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

Reference
At a glance
Controls
Driving tips
Mobility
83
Automatic climate control*
1Air distribution, manual
2Temperature, left side of passenger com-
partment
3Maximum cooling
4AUTO program
5Air flow rate, manual
6AUC Automatic recirculated-air control/
Recirculated-air mode7Residual heat
8Temperature, right side of passenger com-
partment
9Defrosting windows and removing conden-
sation
10Switching cooling function on/off manually
11Rear window defroster
12Air grill for interior temperature sensor –
please keep clear and unobstructed
Comfortable interior climate
AUTO program4 offers the ideal air distribution
and air flow rate for almost all conditions, refer
to AUTO program below. All you need to do is
select an interior temperature which is comfort-
able for you.
The following sections inform you in detail
about how to adjust the settings.
Most settings are stored for the remote control
currently in use, refer also to Personal Profile
settings on page19.
Switching manual air distribution on/
off
The emerging air is directed to the
windows, to the upper body area or
to the footwell.
You can switch the automatic air
distribution back on by pressing the AUTO but-
ton.
Temperature
Set the desired temperatures indi-
vidually for the driver's and front
passenger's sides.
The automatic climate control
achieves this temperature as quickly as possi-
ble regardless of the season, using maximum
cooling or heating power if necessary, and then
maintains it.
When you switch between different tem-
perature settings in quick succession, the
automatic climate control does not have
enough time to achieve the set temperature.<
Maximum cooling
At outside temperatures above
327/06 and when the engine is
running, you obtain a maximum
cooling effect as soon as possible.
The automatic climate control switches to the
lowest temperature and operates in recircu-
lated-air mode. Air flows at maximum rate only
from the vents for the upper body area. You

Climate
84 should therefore open them for maximum cool-
ing.
AUTO program
The AUTO program adjusts the air
distribution to the windshield and
side windows, towards the upper
body area and into the footwell for you. The air
flow rate and your temperature specifications
will be adapted to outside influences as a result
of seasonal changes, e.g. sunlight or window
condensation.
The cooling is switched on automatically with
the AUTO program.
Adjusting air flow rate manually
Press the left side of the button to
reduce airflow. Press the right side
of the button to increase it.
You can reactivate the automatic mode for the
air flow rate with the AUTO button.
Switching the system on/off
With the blower at its lowest setting, press the
left side of the button to switch off the auto-
matic climate control. All indicators go out.
Press any button except REST to reactivate the
automatic climate control.
AUC Automatic recirculated-air
control/Recirculated-air mode
Switch on the desired operating
mode by pressing this button
repeatedly:
>LEDs off: outside air flows in continuously.
>Left-hand LED on, AUC mode: a sensor
detects pollutants in the outside air. If nec-
essary, the system blocks the supply of out-
side air and recirculates the inside air. As
soon as the concentration of pollutants in
the outside air has decreased sufficiently,
the system automatically switches back to
outside air supply.
>Right-hand LED on, recirculated-air mode:
the supply of outside air is permanently shut off. The system then recirculates the
air currently within the vehicle.
If condensation starts to form on the
inside window surfaces during operation
in the recirculated-air mode, you should switch
it off while also increasing the air flow rate as
required.
The recirculated-air mode should not be used
over an extended period of time, otherwise the
air quality inside the car will deteriorate contin-
uously.<
Via the button* on the steering wheel
You can switch between operating modes via a
button
on the steering wheel, refer to page11:
>When outside air is coming in, you can use
the button on the steering wheel to switch
between outside air and recirculated-air
mode.
>When recirculated-air mode or AUC mode
is switched on, you can use the button on
the steering wheel to switch between recir-
culated-air mode and AUC mode.
Residual heat
The heat stored in the engine is
used to heat the passenger com-
partment, e.g. while stopped at a
school to pick up a child.
The function can be switched on when the fol-
lowing conditions are met:
>Up to 15 minutes after the engine has been
switched off
>While the engine is at operating tempera-
ture
>As long as battery voltage is sufficient
>At an outside temperature below 777/
256
The LED is lit when the function is on.
As of radio readiness, you can set the interior
temperature, the air flow rate and the air distri-
bution.

Under the hood
120
Possible displays
1Oil level OK
2Oil level is being checked.
This can take about 3 minutes if the car is at
a standstill on a level surface, or about
5 minutes while the car is on the move.
3Oil level down to minimum:
Add 1US quart/1liter of engine oil as soon
as possible, refer also to Adding engine oil.
4Oil level is too high.
Too much oil will harm the engine.
Have the vehicle checked without
delay.<
5The oil level sensor is defective.
Do not add engine oil. You can continue
your journey. Note the newly calculated dis-
tance remaining to the next oil service, refer
to page123. Have the system checked as
soon as possible.
Adding engine oil
Do not add the maximum amount of 1 US quart/
1 liter of engine oil until the following warning
lamp lights up in the instrument cluster, or in
cars with gasoline engines until the oil level
monitor shows "+1qts" or "+1l".
Add oil within the next 125 miles/200 km,
otherwise the engine could be dam-
aged.<
Keep oils, greases, etc. out of the reach of
children and comply with the warnings on
the containers. Otherwise, health hazards may
result.<
Oil change
Have oil changed only at your BMW Center or at
a workshop that works according to BMW
repair procedures with correspondingly trained
personnel.
Specified engine oils
The quality of the engine oil selected has critical
significance for the operation and service life of
an engine. BMW continuously approves spe-
cific oils after confirming their suitability for use
in its vehicles with extensive testing.
Only use approved BMW High Performance
Synthetic Oil.

Reference
At a glance
Controls
Driving tips
Mobility
123
Maintenance
BMW Maintenance System
The BMW Maintenance System supports the
preservation of the traffic and operating safety
of your BMW. The service schedule also
includes operations related to the vehicle's
comfort and convenience features, such as
replacement of the filters for the inside air. The
objective is to optimize efforts with respect to
minimal vehicle maintenance costs.
If and when you come to sell your BMW, a com-
prehensive record of servicing will prove a sig-
nificant benefit.
CBS Condition Based Service
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.
In the instrument cluster, you can have the
remaining times or distances for selected main-
tenance tasks and any legally prescribed dates
displayed, refer to page63:
>Engine oil
>Brakes: separately for front and rear
>Microfilter/activated-charcoal filter
for auto-
matic climate control
>Microfilter
for air conditioner
>Brake fluid>Spark plugs
>Vehicle check
>Legally mandated inspections depending
on local regulations
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 in the instrument
cluster is always set correctly, refer to
page65; otherwise the effectiveness of Condi-
tion 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.<

Indicator and warning lamps
144Engine speed too high Select a higher gear if the driving situa-
tion permits you to do so.
Active cruise control deactivated:
>Driving stability control systems are
active or
>handbrake is applied or
>the vehicle has not achieved a
speed of 20 mph or 30 km/h or
>engaged gear not suitable for the
speed being driven orKeep a safe distance.
>radar sensor dirty Clean the radar sensor, refer to
page56.
Active cruise control failed Keep a safe distance.
Have the system checked.
Park Distance Control failed Have the system checked.
Bulb of exterior lighting system failed Have the exterior lighting checked as
soon as possible.
Low-beam headlamp or fog lamp failed Have the low beams checked as soon
as possible.
High-beam headlamp failed Have the high-beam headlamps
checked.
Headlamp beam throw adjustment
system failedHave the headlamp beam throw adjust-
ment system checked.
Adaptive Head Light failed
Coolant level too low Add coolant immediately, refer to
page121.
Engine oil pressure too low Stop immediately and switch off the
engine. You cannot continue your jour-
ney. Contact your BMW Center.
Engine oil level too low Add engine oil immediately; refer to
page119 for more information.
12Cause What to do

Everything from A to Z
152
Everything from A to Z
Index
A
ABS Antilock Brake
System68
ACC, refer to Active cruise
control53
Acceleration assistant with
the sequential manual
gearbox SMG47
Accessories, refer to The
individual vehicle5
Activated-charcoal filter for
automatic climate control85
Active cruise control53
– indicator lamps56
– malfunction57
– selecting distance55
– sensor56
Active steering73
– warning lamp73
Adapter for spare key18
Adaptive Head Light77
Additives
– coolant121
Adjusting temperature inside
the car, refer to Air
conditioner81
Adjusting temperature inside
the car, refer to Automatic
climate control83
Airbags74
– sitting safely31
– warning lamp75
Air conditioner80
Air conditioning mode
– air conditioner81
– automatic climate control83
– ventilation82,85
Air distribution
– automatic84
– individual81
– manual81
Air flow rate81,84Airing, refer to
Ventilation82,85
Air outlets, refer to Air
vents80
Air pressure, tires108
Air recirculation, refer to
Recirculated-air
mode81,84
Air supply
– air conditioner81
– automatic climate control83
– ventilation82,85
Air vents80
AKI, refer to Fuel
specifications
106
Alarm system24
– avoiding unintentional
alarms25
– interior motion sensor25
– switching off an alarm25
– tilt alarm sensor25
All-season tires, refer to
Winter tires117
Ambient air, refer to
Recirculated-air
mode81,84
Antifreeze
– coolant121
– washer fluid50
Anti-theft alarm system, refer
to Alarm system24
Anti-theft system19
Anti-trapping mechanism
– glass sunroof, electric29
– windows28
Approved axle loads, refer to
Weights150
Approved gross vehicle
weight, refer to Weights150
Armrest, refer to Center
armrest89Ashtray
– front91
– rear91
Assistance systems, refer to
Dynamic Stability Control
DSC68
AUC Automatic recirculated-
air control84
Audio device, external90
Automatic
– air distribution84
– air flow rate84
– cruise control51,53
– headlamp control76
Automatic climate control80
– automatic air distribution84
Automatic curb monitor37
Automatic recirculated-air
control AUC84
Automatic transmission with
Steptronic47
– interlock47
– overriding selector lever
lock48
– shiftlock47
– sport program48
AUTO program for automatic
climate control84
AUX-IN
– port90
Average fuel consumption60
– setting the units62
Average speed60
Avoiding unintentional
alarms25
Axle loads, refer to
Weights150
B
Backrests, refer to Seats31
Backrest width adjustment33

Reference
At a glance
Controls
Driving tips
Mobility
157
Homepage4
Hood118
Horn10
Hot exhaust system98
Hydraulic brake assist, refer to
Dynamic Brake Control68
Hydroplaning99
I
Ice warning59
Ignition42
– switched off42
– switched on42
Ignition key, refer to
Integrated key/remote
control18
Ignition key position 1, refer to
Radio readiness42
Ignition key position 2, refer to
Ignition on42
Ignition lock42
Indicator and warning
lamps13,136
Individual air distribution81
Individual settings, refer to
Personal Profile19
Initializing
– compass, refer to
Calibrating88
– Flat Tire Monitor FTM72
– glass sunroof29
Instrument cluster12
Instrument lighting78
Instrument panel, refer to
Cockpit10
Integrated key18
Integrated universal remote
control86
Interior lamps79
– remote control20
Interior motion sensor25
Interior rearview mirror37
– automatic dimming
feature99
Interior rearview mirror with
digital compass87
Interlock47Intermittent mode of the
wipers50
J
Jacking points129
Jumpering, refer to Jump
starting132
Jump starting132
K
Key, refer to Integrated key/
remote control18
Keyless Go, refer to
Convenient access25
Keyless opening and closing,
refer to Convenient
access25
Key Memory, refer to Personal
Profile19
Kick-down48
– automatic transmission with
Steptronic48
– sequential manual gearbox
SMG46
Knock control106
L
Lamps, refer to Parking lamps/
low beams76
Lamps and bulbs, replacing
bulbs125
Lap-and-shoulder safety
belt36
Lashing eyes, refer to
Securing cargo101
LATCH child-restraint fixing
system40
LEDs light-emitting
diodes125
Length, refer to
Dimensions149
License plate lamp, replacing
bulbs128
Light-emitting diodes
LEDs125
Lighter91Lighting
– instruments78
– lamps and bulbs125
– of the vehicle, refer to
Lamps76
Light switch76
Limit145
Loading
– securing cargo101
Load securing equipment,
refer to Securing cargo101
Lock buttons in the doors,
refer to Locking23
Locking
– adjusting confirmation
signal21
– from inside23
– from outside20
– without remote control, refer
to Convenient access25
Locking and unlocking doors
– from inside22
– from outside20
Low beams76
– automatic76
– replacing bulbs126
Lower back support, refer to
Lumbar support32
Luggage compartment
– capacity150
– convenient access26
– folding up the floor panel93
– lamp79
– opening from inside23
– opening from outside23
Luggage compartment lid23
– convenient access26
– unlocking with remote
control21
Luggage compartment lid,
refer to Tailgate23
Luggage compartment net,
refer to Securing cargo101
Luggage rack, refer to Roof-
mounted luggage rack101
Lumbar support32