2006 BMW 325XI TOURING traction control

At a glance
Controls
Driving tips
Mobility Reference
15
1Microphone for voice command system*
and for telephone in hands-free mode*
2Initiating an emergency call*
3Reading lamps77
4Panorama glass roof
*28
5Interior lamps77
6Passenger airbag status lamp
*73
7Hazard warning flashers
8DTC Dynamic Traction Control66
9Central locking system22
10Air conditioner or automatic climate con-
trol
*
Air distribution for air
conditioner79
Air distribution to the
windshield
*81
Air distribution to the upper body
area
*81
Air distribution to the footwell
*81
Automatic air distribution and flow
rate
*82
Cooling function83
AUC Automatic recirculated-air
control
*82
Recirculated-air mode79,82
Maximum cooling
*81
Residual heat mode
*82
Air flow rate79,82
Defrosting windows
*83
Rear window defroster79,83
11
Heated seats*34
PDC Park Distance Control
*65
Hill Descent Control HDC
*67

Reference
At a glance
Controls
Driving tips
Mobility
53
Deactivating cruise control
Press the lever upward or downward, arrow3.
The displays in 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 page54
>When you apply the handbrake
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 handbrake or a DSC intervention.
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.
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

Technology for driving comfort and safety
66 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 page97.
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
67
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 uphill on snow-covered roads,
in slush or on unplowed, snow-covered
roads
>When rocking a stuck vehicle free or start-
ing off in deep snow or on loose ground
>When driving with snow chains
Activating DTC
Briefly press the button; the DTC indicator
lamps in the instrument cluster come on.
To control
If the indicator lamp flashes:
DTC controls the drive forces and
brake forces.
If the indicator lamps are on:
DTC has been activated.
Deactivating DTC
Press the button again; the DTC indicator
lamps in the instrument cluster go out.
xDrive 325xi
xDrive is your BMW's four-wheel-drive system.
The combined efforts of xDrive and DSC help to
further optimize traction and driving dynamics.
The xDrive four-wheel-drive system distributes
driving power variably to the front and rear axles
depending on the driving situation and road
conditions.
Malfunction
In case of any of the malfunctions
described below, drive cautiously and
think well ahead. Avoid driving on rough tracks
and pressing the accelerator pedal down to full
throttle or kick-down position, otherwise the
drive system could be damaged or accidents
could result. has failed.
Have the system checked as soon as
possible.
The warning lamps come on. xDrive
and DSC have failed.
Have the system checked as soon as
possible.
Hill Descent Control HDC 325xi
HDC is a downhill driving assistant that reduces
your speed on steep downhill gradients and
makes it even easier to control your BMW's
handling under these conditions. The vehicle
then moves slightly faster than double walking
speed without the driver needing to intervene.
HDC can be activated as long as you are driving
under approx. 20 mph or 35 km/h. When driving
downhill at a speed of under approx. 20 mph or
35 km/h, the vehicle's speed is automatically
reduced to slightly more than double walking
speed and maintained.
Increasing or decreasing speed
By accelerating or braking you can change the
speed within a range from approx. 3 to 15 mph,
approx. 5 to 25 km/h.
You can specify a target speed within the same
range using the cruise control stalk.
1To increase speed
2To decrease speed

Wheels and tires
108
Tire identification marks
Knowledge of the labeling on the side of the tire
makes it easier to identify and choose the right
tires.
Tire size
Speed code letter
Q = up to 100 mph or 160 km/h
T = up to 118 mph or 190 km/h
H = up to 131 mph or 210 km/h
V = up to 150 mph or 240 km/h
W = up to 167 mph or 270 km/h
Y = up to 186 mph or 300 km/h
Tire Identification Number
Tires with DOT codes meet the guidelines of
the US Department of Transport.
DOT code:
Tire age
The manufacturing date of tires is contained in
the tire coding: DOT … 0705 means that the
tire was manufactured in week 7 of 2005.
BMW recommends that you replace all tires
after 6 years at most, even if some tires may last
for 10 years.
Uniform Tire Quality Grading
Quality grades can be found where applicable
on the tire sidewall between tread shoulder and
maximum section width. For example:
Tread wear 200 Traction AA
Temperature A
DOT Quality Grades
Tread wear
Traction AA A B C
Temperature A B C
All passenger car tires must conform to
Federal Safety Requirements in addition
to these grades.<
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov-
ernment test course. For example, a tire graded
150 would wear one and one-half (1γ) times as
well on the government course as a tire graded
100. The relative performance of tires depends
upon the actual conditions of their use, how-
ever, and may depart significantly from the
norm due to variations in driving habits, service
practices and differences in road characteris-
tics and climate.
Traction
The traction grades, from highest to lowest, are
AA, A, B, and C.
Those grades represent the tire's ability to stop
on wet pavement as measured under controlled
conditions on specified government test sur-
faces of asphalt and concrete. A tire marked C
may have poor traction performance.
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor-
nering, hydroplaning, or peak traction charac-
teristics.< e.g.
Nominal width in mm
Aspect ratio in Ξ
Radial belt construction
Rim diameter in inches
Load rating,
not on ZR tires
Speed code letter, in
front of the R on ZR tires
225/45 R1791 V
e.g.
Manufacturer's code
for tire make
Tire size and
tire design
Tire ageDOT xxxx xxx 0705

Reference
At a glance
Controls
Driving tips
Mobility
111
Run-Flat 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, moreover, 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.<
Special characteristics of winter tires
BMW recommends winter tires for use in cold
winter driving conditions. Although all-season
M+S tires provide better winter traction than
summer tires, they generally fail to provide the
same levels of cold-weather performance as
winter tires.
Pay attention to speed
Always comply with the speed limit for the
winter tires mounted on your car; failure
to do so could result in tire damage and acci-
dents.<
If the car is capable of speeds higher than that
permitted for the winter tires, a label stating the
maximum permitted speed for the mounted
tires must be displayed in your field of view.
Specialist tire dealers and your BMW Center
can supply these labels.
Storage
Always store wheels and tires in a cool, dry
place with as little exposure to light as possible.
Always protect tires against all contact with oil,
grease and fuels. Do not exceed the maximum
tire inflation pressure indicated on the sidewall
of the tire.
Snow chains*
Only certain fine-link snow chains have been
tested by BMW, classified as safe for use and
recommended. Consult your BMW Center for
more information. Attach snow chains in pairs
and only to the rear wheels. Observe the manu-facturer's instructions when mounting snow
chains. Do not exceed a speed of 30 mph or
50 km/h.
You are not permitted to mount snow chains to
tires of the following sizes:
>255/40 R 17
>255/35 R 18
>255/30 R 19
Do not initialize the Flat Tire Monitor if
snow chains are mounted, otherwise the
instrument might issue an incorrect reading.
When driving with snow chains, you may find it
helpful to activate DTC temporarily, refer to
page66.<

Indicator and warning lamps
134Indication in US models
Vehicle electronics failed You cannot continue your journey. Con-
tact your BMW Center.
Indication
* in Canadian models
Vehicle electronics failed You cannot continue your journey. Con-
tact your BMW Center.
Indication
* in Canadian models
Vehicle electronics failed You cannot continue your journey. Con-
tact your BMW Center.
Lights up in red: Have the system in question checked
without delay.
>Starter failed or The engine cannot be restarted.
>ignition malfunctioning. Engine
restart only possible when brake is
depressed or
>lighting system failed. Low beams/
tail lamps and brake lamps still
operational. All other lamps failedDepress the brake to restart the engine.
Lights up in yellow:
>Control of the brake lamps failed or
>fuel supply malfunctioning, or
>trailer lamps malfunctioning You can continue your journey, but
moderate your speed and exercise due
caution. Have the system in question
checked without delay.
Flashing:
Dynamic Stability Control DSC or
Dynamic Traction Control DTC is con-
trolling drive and braking forces, refer
also to page67
Dynamic Traction Control DTC acti-
vated, refer also to page67
Dynamic Stability Control DSC and
Dynamic Traction Control DTC deacti-
vated, refer also to page67Driving stability limited during accelera-
tion and cornering.
Driving style must be readjusted.
12Cause What to do

Reference
At a glance
Controls
Driving tips
Mobility
149
Directional indicators, refer to
Turn signals46
Displacement, refer to Engine
data142
Display lighting, refer to
Instrument lighting76
Displays
– instrument cluster12
Displays and controls10
Disposal
– coolant115
– remote control battery27
– vehicle battery123
Distance control, refer to
Active cruise control50
Distance remaining to service,
refer to Service
requirements61
Distance warning, refer to
PDC Park Distance
Control65
Door key, refer to Integrated
key/remote control18
Door lock22
Door locking, confirmation
signals21
Doors, emergency
operation22
DOT Quality Grades108
Draft-free ventilation80,83
Drinks holders, refer to Cup
holders88
Drive-off assistant69
Driving lamps, refer to Parking
lamps/low beams74
Driving notes96
Driving stability control
systems66
Driving through water97
Driving tips, refer to Driving
notes96
Dry air, refer to Cooling
function83
DSC Dynamic Stability
Control66
DTC Dynamic Traction
Control66
– indicator lamps66Dynamic Traction Control
DTC
– indicator lamps67
E
EBV Electronic brake-force
distribution66
Electrical malfunction
– door lock22
– fuel filler door104
– glass sunroof30
– panorama glass roof30
Electric seat adjustment32
Electronic brake-force
distribution66
Electronic oil level check113
Emergency call125
Emergency operation, refer to
Closing manually
– glass sunroof30
– panorama glass roof30
Emergency operation, refer to
Manual operation
– door lock22
– fuel filler door104
– transmission lock, automatic
transmission46
Emergency services, refer to
Roadside Assistance125
Emissions test, refer to
Service requirements61
Energy-conscious driving,
refer to Energy Control58
Energy Control58
Engine
– breaking in96
– data142
– overheated, refer to Coolant
temperature57
– speed142
– starting43
– starting, convenient
access26
– switching off43
Engine compartment113
Engine coolant, refer to
Coolant115Engine oil
– adding114
– BMW Maintenance
System117
– checking level113
– intervals between changes,
refer to Service
requirements61
Engine output, refer to Engine
data142
Engine speed142
Engine starting, refer to
Starting the engine43
Environmentally friendly
driving, refer to Energy
Control58
Error messages, refer to
Check Control63
ESP Electronic Stability
Program, refer to DSC
Dynamic Stability
Control66
Event data recorders118
Exhaust system, refer to Hot
exhaust system
96
Expanding the cargo area90
Exterior mirrors36
– adjusting36
– automatic dimming
feature97
– automatic heating37
External audio device87
Eyes
– for tow-starting and towing
away127
– for tying down loads99
F
Failure messages, refer to
Check Control63
Failure of an electrical
consumer124
False alarm, refer to Avoiding
unintentional alarms25
Fastening safety belts, refer to
Safety belts36