traction control BMW M3 SEDAN 2009 E90 Owner's Manual

Driving
52
Reverse gear
Select this only when the vehicle is stationary.
When the gearshift lever is pressed to the left, a
slight resistance has to be overcome.
M dual clutch transmission
with Drivelogic*
The concept
The M dual clutch transmission with Drivelogic
is an automated manual transmission with two
clutches and a partial transmission in which an
electro-hydraulic system takes over clutch
action and shifting.
With the M dual clutch transmission, gears are
changed without interruption of the traction
force.
The M dual clutch transmission is operated
using the selector lever and two shift paddles
on the steering wheel.
The transmission offers you the following func-
tions:
>Selection between manual or automatic
operation, sequential mode or drive mode
>Selection between different drive pro-
grams, Drivelogic, refer to page55
>Shift Lights, refer to page56
>Automatic downshifting and protection
against selecting the wrong gear even in
sequential mode
>Launch Control, refer to page57
>Automatic throttle blip
>Low Speed Assistant
System limitations
The M dual clutch transmission is equipped
with an overheating protection system that pro-
tects the clutch against extreme loads.
The indicator lamp lights up yellow
when the transmission becomes too
warm. Avoid high engine loads and
driving off frequently. When the transmission is
overheated, the indicator lamp lights up red and
the fuel supply to the engine is cut off. You can-not continue driving until the transmission has
cooled down.
Avoid driving off frequently with high accelera-
tion and do not hold the vehicle on inclines by
pressing lightly on the accelerator while letting
the clutch slip, as this may cause the transmis-
sion to overheat.
In traffic congestion or at very low speeds, use
the Low Speed Assistant, refer to the informa-
tion below.
Low Speed Assistant
The Low Speed Assistant supports you when
driving at very low speeds: the vehicle moves at
walking speed and automatically controls the
engine speed. You can also use the Low Speed
Assistant when rocking the vehicle out of deep
snow. To do so, shift between reverse gear and
the forward position without pressing the brake.
Activating
1.Engage a drive position.
2.Briefly tap the accelerator.
The vehicle rolls at the minimum speed.
Do not press the brake continuously as
this may cause the transmission to over-
heat.<
Deactivating
Brake the vehicle to a stop to deactivate the
Low Speed Assistant.
Selector lever positions
>R: reverse gear
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Technology for driving comfort and safety
76
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 page107.
Electronic brake-force distribution
The system controls the brake pressure in the
rear wheels to ensure stable braking behavior.
Brake assist
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 optimizes driving stability and traction. In
addition, the system recognizes unstable driv-
ing situations such as understeering and over-
steering, and helps keep the vehicle on a safe
course within physical limits by reducing engine
power and applying the brakes on 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, as this could
result in an accident.<
M Dynamic Mode MDM*
M Dynamic Mode is a mode of the Dynamic
Stability Control DSC that permits greater lon-gitudinal and lateral acceleration when driving
on dry surfaces, yet with reduced driving stabil-
ity. Only at the absolute limit of stability does
the system intervene to stabilize the vehicle by
reducing engine power and applying the brakes
on the wheels. In such situations, additional
corrective steering maneuvers may be neces-
sary.
M Dynamic Mode is switched off every time the
engine is restarted.
When the M Dynamic Mode is on, stabi-
lizing measures are performed to a limited
degree only. Take action yourself, otherwise
there is a risk of an accident.<
To maintain vehicle stability, drive with
the DSC activated and the
MDynamicMode deactivated whenever possi-
ble.<
Activating MDM
Press the button on the steering wheel, refer
to MDrive
* on page44. The MDM indicator
lamp in the instrument cluster lights up if you
previously selected the M Dynamic Mode MDM
in MDrive.
When the ignition is on, you can set the
M Dynamic Mode via MDrive on the Control
Display.
iDrive, for operating principle refer to page16.
1."Settings"
2."MDrive"
3."DSC:"
4.Select "M Dynamic Mode".
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Wheels and tires
188
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/160 km/h
T = up to 118 mph/190 km/h
H = up to 131 mph/210 km/h
V = up to 150 mph/240 km/h
W = up to 167 mph/270 km/h
Y = up to 186 mph/300 km/h
Z = over 150 mph/240 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 … 3208 means that the
tire was manufactured in week 32 of 2008.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
235/40 R18100 V
245/35 ZR19
e.g.
Manufacturer's code
for tire make
Tire size and
tire design
Tire ageDOT xxxx xxx 3208
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Everything from A - Z
240 TMC station, refer to
Traffic bulletins130
Tone
– control136
– middle setting138
Tools, refer to Onboard tool
kit203
Top 50 of music
collection153
Torque, refer to Engine
data218
Tow bar213
Tow fitting212
– screw thread212
Tow fittings for tow-starting
and towing away212
Towing212
– with manual
transmission213
– with M dual clutch
transmission213
Towing and tow-starting212
Towing methods213
Town/city, for navigation117
Tow rope213
Tow-starting212,213
TPM, refer to Tire Pressure
Monitor79
Track
– selecting on CD144
Traction control, refer to
Dynamic Stability Control
DSC76
Traffic bulletins
– categories131
Traffic bulletins, filtering131
Traffic bulletins for
navigation130
– during destination
guidance131
– in map display131
Traffic jam
– displaying traffic
bulletins130Transmission
– Drivelogic55
– Launch Control57
– manual transmission51
– reverse gear53
– Shift Lights56
– unlocking transmission lock
manually54
Transmission lock, unlocking
manually54
Transporting children
safely46
Transport securing devices,
refer to Securing cargo109
Travel instructions,
refer to Voice
instructions128
Tread depth, refer to Minimum
tire tread189
Trip-distance counter, refer to
Trip odometer62
Triple turn signal activation58
Trip odometer62
Trunk lid, refer to Luggage
compartment lid30
Turning circle, refer to
Dimensions219
Turn signal indicators
– indicator/warning lamp12
– triple turn signal58
Turn signals58
TV
– control elements136
– switching on/off136
– tone control136
– volume136
Tying down loads, refer to
Cargo loading109
U
Uniform Tire Quality Grading/
UTQR188
Units
– average consumption65
– temperature65
Universal garage door opener,
refer to Integrated universal
remote control94Universal mobile phone
preparation package, refer
to separate Owner's Manual
Universal remote control94
Unlatching, refer to
Unlocking32
Unlocking
– from inside30
– from outside27
– luggage compartment lid33
– without remote control, refer
to Convenient access32
USB-audio interface156
V
VCD146
Vehicle
– battery208
– breaking in106
– cargo loading108
– Identification Number, refer
to Engine compartment193
– measurements, refer to
Dimensions219
– parking50
– weight220
Vehicle jack208
Vehicle position, refer to
Displaying current
position133
Vehicle storage202
Ventilation92
– draft-free92
– in the rear92
Ventilation, refer to Climate89
Ventilation while at a
standstill92
Vents, refer to Ventilation92
Video menu146
Video playback146
Voice, refer to Destination
guidance through voice
instructions128
Voice commands
– overview22
– short commands221
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