traction control BMW 135I COUPE 2008 E82 Owner's Manual

At a glance
15Reference
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
1Coupe: microphone for voice command
system
* and for telephone in hands-free
mode
*
Convertible: microphone on steering col-
umn
2SOS: initiating an Emergency Request
call
*222
3Reading lamps95
4Coupe: glass roof, electric
*39
5Interior lamps94
6Passenger airbag status lamp
7Control Display16
8Dynamic Traction Control DTC82
9Hazard warning flashers
10Central locking system32
11Automatic climate control
12Ejecting audio CD15013Changing
>Radio station150
>Track150
14Selecting radio, CD and CD changer
15Selecting AM or FM waveband
16Ejecting navigation DVD
18Controller16
Can be turned, pressed, or moved horizon-
tally in four directions
19Opening start menu on Control Display17
20Drive for navigation DVD
*122
21Programmable memory keys21
22Switching entertainment audio sources on/
off and adjusting volume150
23Drive for audio CD163 Air distribution to the
windshield97
Air distribution to the upper body
area97
Air distribution to the footwell97
Automatic air distribution and flow
rate98
Cooling function99
Automatic recirculated-air control
AUC98
Recirculated-air mode98
Maximum cooling97
Residual heat mode99
Air flow rate98
Defrosting windows99
Rear window defroster99
17
Heated seats*49
Convertible: opening the convert-
ible top41
Convertible: closing the convertible
top41

Controls
81Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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. Loud sound sources out-
side or inside the car can drown out the PDC
signal. Therefore, always drive cautiously, oth-
erwise there is a risk of personal injury or prop-
erty 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 page116.
Electronic brake-force distribution
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
safety margin again by taking risks, as this could
result in an accident.<

Technology for driving comfort and safety
82
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.
in the same way as with a differential interlock,
even if DSC is deactivated, brake actions are
still performed on the rear axle to enhance drive
output if the drive wheels experience a signifi-
cant loss of traction.
To increase vehicle stability, activate DSC again
as soon as possible.
Activating DSC
Press the button again; the indicator lamps for
DSC in the instrument cluster go out.
For better control
If the indicator lamp flashes:
DSC is regulating the drive and braking
forces.
If the indicator lamps are on:
DSC is deactivated.
Dynamic Traction Control DTC
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 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
Press the button; the indicator lamps for DTC in
the instrument cluster come on.
For better control
If the indicator lamp flashes:
DTC is regulating the drive and braking
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.
Drive-off assistant
The drive-off assistant enables you to drive off
smoothly on uphill gradients. It is not necessary
to use the parking brake for this.
1.Hold the car in place by depressing the
brake.
2.Release the brake and drive off without
delay.
The drive-off assistant holds the car in
place for approx. 2 seconds after the
brake is released. Drive off without delay after
releasing the brake. Otherwise, the drive-off

Mobility
205Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
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 Transportation.
DOT code:
Tire age
The manufacturing date of tires is contained in
the tire coding: DOT … 3006 means that the
tire was manufactured in week 30 of 2006.
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.<
Temperature
The temperature grades are A, the highest, B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate 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

Everything from A - Z
244 Destination for navigation
– destination list130
– entry123
– home address133
– manual entry123,127
– selecting from address
book132
– selecting using
information129
– selecting via language127
– selecting via map128
– storing131
Destination guidance136
– canceling voice
instructions54
– changing specified
route134
– displaying route137
– distance and arrival136
– starting136
– terminating/continuing136
– voice instructions140
– volume of voice
instructions140
Destination list for navigation
system130
Destinations recently driven
to130
"Details" for audio mode171
"Dial" for mobile phone183
"Dial number"183
Differential, breaking in114
Digital clock66
Digital compass104
Digital radio, refer to High
Definition Radio157
Digital Versatile Disc, refer to
– Drive for navigation DVD150
Dimensions231
Directional indicators, refer to
Turn signals62
Direction instructions, refer to
Voice instructions140
Directory for navigation, refer
to Address book131
Displacement, refer to Engine
data230
"Display"20Display, refer to Control
Display16
Display lighting, refer to
Instrument lighting94
Displays, refer to Instrument
cluster12
Displays and controls10
"Display settings"79
Disposal
– of coolant213
– remote control battery37
– vehicle battery220
Distance, refer to
Computer68
Distance remaining to service,
refer to Service
requirements71
"Distance to dest."69
Distance to destination, refer
to Computer68
Distance warning, refer to
Park Distance Control
PDC80
Door key, refer to Integrated
key/remote control28
Door lock32
Door lock, confirmation
signals31
"Door locks"30,32,72
Doors, emergency
operation32
DOT Quality Grades205
Draft-free ventilation99
Drinks holders, refer to Cup
holders106
Drive for navigation DVD150
Drive-off assistance, refer to
DSC81
Drive-off assistant82
Driving around a traffic
congestion144
Driving lamps, refer to Parking
lamps/low beams91
Driving notes114
Driving off on hills, refer to
Drive-off assistant82
Driving route, refer to
Displaying route137Driving stability control
systems81
Driving through water116
Driving tips, refer to Driving
notes114
Dry air, refer to Cooling
function99
DTC Dynamic Traction
Control82
– indicator lamps82
DVD
– drive for navigation DVD150
DVD for navigation122
Dynamic Brake Control
DBC81
"Dynamic route" in
navigation134
Dynamic Stability Control
DSC81
Dynamic Traction Control
DTC
– indicator lamps82
E
EBV Electronic brake-force
distribution81
Eject button, refer to Buttons
on the CD player150
Electrical malfunction
– door lock32
– fuel filler door200
– glass roof40
– luggage compartment lid33
Electronic brake-force
distribution EBV81
Electronic oil level check210
Electronic Stability Program
ESP, refer to Dynamic
Stability Control DSC81
Emergency operation, refer to
Manual operation
– door lock32
– fuel filler door200
– glass roof40
– transmission lock, automatic
transmission62
Emergency release, luggage
compartment lid34

Reference 253
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Temperature display
– outside temperature66
– outside temperature
warning66
– setting the units70
Tempomat, refer to Cruise
control64
"Terminate services"196
"Text language", refer to
Language of Control
Display79
"Theater" for Tone
control152
Thigh support46
Third brake lamp, refer to
Center brake lamp219
Three-point safety belt51
Through-loading system108
Tilt alarm sensor35
Tilt function, passenger-side
mirror52
"Time / Date"74,75
"Time format"75
Timer, refer to Preselecting
switch-on times100
Tire inflation pressure202
– loss84,85
Tire pressure monitoring,
refer to Flat Tire Monitor83
Tire Pressure Monitor
TPM84
– resetting the system85
– system limitations84
– warning lamp86
Tire puncture, refer to Flat Tire
Monitor84
Tire Quality Grading205Tires
– age205,207
– air loss86
– breaking in114
– changing, refer to Changing
wheels219
– condition206
– damage206
– inflation pressure202
– labels205
– minimum tread depth206
– new tires207
– pressure monitoring, refer to
Flat Tire Monitor83
– pressure monitoring, refer to
Tire Pressure Monitor
TPM84
– puncture84
– retreaded207
– Run-Flat Tires207
– size205
– wear indicators, refer to
Minimum tread depth206
– winter tires208
Tires, FTM83
TMC station, refer to Traffic
information141
"Tone"151
Tone in audio mode
– adjusting151
– middle setting152
Tools, refer to Onboard tool
kit216
"Top 8" for mobile phone184
Torque, refer to Engine
data230
Touch tone dialing186
Tow bar225
Tow fitting224
Tow fittings for tow-starting
and towing away224
Towing224
– car with automatic
transmission224
– methods225
Towing and tow-starting224
Town/city for destination124
"Town / City" in destination
entry124Tow rope225
Tow-starting224
"TPM"85
TPM, refer to Tire Pressure
Monitor84
Tracks
– random play sequence166
– sampling, Scan165
– searching for165
Track width, refer to
Dimensions231
Traction control, refer to
Dynamic Stability Control
DSC81
Traffic information for
navigation
– calling up142
– display on route map143
– during destination
guidance144
– switching on/off141
– symbols143
"Traffic Info settings"142
Traffic jam
– displaying traffic
information141
– driving around144
Transmission
– automatic transmission with
Steptronic60
– manual transmission60
Transporting children
safely55
Transport securing devices,
refer to Securing cargo118
Tread depth, refer to Minimum
tire tread206
Treble, refer to Treble and
bass151
Treble, tone control151
"Trip computer"69
Trip computer69
Trip-distance counter, refer to
Trip odometer66
"Triple turn signal"63
Triple turn signal activation63
Trip odometer66
Trunk, refer to Cargo bay