2012 BMW M3 snow chains

98
ControlsTechnology for driving comfort and safety
safety margin again by taking risks, as this could
result in an accident. <
Deactivating DSC
Press the button for at le ast 3 seconds until the
indicator lamp for DSC OFF lights up and DSC
OFF is displayed in the instrument cluster.
Dynamic Traction Control DTC and DSC have
been simultaneously de activated. 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 to enhanc e drive output if the
drive wheels experience a significant loss of
traction.
To increase vehicle stab ility, activate DSC again
as soon as possible.
Activating DSC
Press the button again; th e indicator lamp in the
instrument cluster goes out.
For better control
If the indicator lamp flashes: the DSC
controls the driving and braking forces.
If the indicator lamp lights up: DSC and
DTC have failed.
The indicator lamp lights up and
DSC OFF is displayed in the instrument
cluster: DSC is deactivated.
Dynamic Traction Control DTC
DTC is a version of DSC in which the drive out-
put is optimized for part icular 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 sp ecial 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 lamp for DSC
OFF lights up and TRACTION is displayed in
the instrument cluster.
For better control
If the indicator lamp flashes: DTC con-
trols the driving and braking forces.
If the indicator lamp lights up: DSC and
DTC have failed.
The indicator lamp lights up and
TRACTION is displayed in the instru-
ment cluster: DTC is activated.
Deactivating DTC
Press the button again; th e indicator lamp in the
instrument cluster goes out.
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100
ControlsTechnology for driving comfort and safety
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. Ot herwise, the drive-off
assistant will no longer hold the car in place
after approx. 2 seconds and the car will start to
roll backwards. <
Flat Tire Monitor FTM
The concept
The system does not measure the actual infla-
tion pressure in the tires.
The system detects a pressure loss in a tire by
comparing the rotational speeds of the individ-
ual wheels while moving.
In the event of a pressure loss, the diameter and
therefore the rotational speed of the corre-
sponding wheel change. This is detected and
reported as a flat tire.
Functional requirement
The system must have be en initialized while the
tire inflation pressure was correct; otherwise,
reliable signaling of a flat tire is not ensured.
Each time a tire inflation pressure has been cor-
rected or a wheel or tire has been changed,
reinitialize the system.
System limitations
Sudden serious tire damage caused by
external influences cannot be indicated in
advance.<
A natural, steady pressure loss in all four tires is
not detected. Therefore, check the tire inflation
pressure regularly.
In the following situatio ns, the system could be
delayed or malfunction:
> System has not been initialized
> Driving on snowy or slippery road surface
> Performance-oriented style of driving: slip
in the drive wheels, hi gh lateral acceleration
> Snow chains are attached
Status display
The current status of the Flat Tire Monitor can
be displayed on the Control Display, e.g.
whether or not the FTM is active.
1."Vehicle Info"
2. "Vehicle status"
3. "Flat Tire Monitor"
The status is displayed.
Initialization
The initialization process adopts the set infla-
tion tire pressures as reference values for the
detection of a flat tire. Initialization is started by
confirming the inflation pressures.
Do not initialize the syst em when driving with
snow chains.
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258
MobilityWheels and tires
When properly used, these tires meet the high-
est standards in terms of safety and handling
characteristics.
Special characteristics of winter tires
BMW recommends winter tires for driving on
winter roads or at temperatures below +45 7/
+7 6. Although all-season M+S tires provide
better winter traction th an summer tires, they
generally fail to provide th e 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 agains t all contact with oil,
grease and fuels. Do not exceed the maximum
tire inflation pressure indicated on the sidewall
of the tire.
Swapping wheels between axles
BMW advises against swapping wheels
between the front and rear axles, even if all tires
have the same size, as this could impair driving
characteristics. If the tires are of mixed sizes,
swapping wheels betwee n the axles is not per-
missible.
Run-flat tires
The symbol identifying run- flat tires is a circle
with the letters RSC on the sidewall.
Run-flat tires comprise a conditionally self-sup-
porting tire and a spec ial rim. The reinforce-
ment in the sidewalls en sures that the tire can
continue to be used su bject to certain restric-
tions, even if depressurized.
For information on continuing to drive with a flat
tire, refer to In dication of a flat tire, page 101.
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.
Snow chains must be mounted in pairs and on
the rear wheels only. Observe the manufac-
turer's instructions when mounting snow
chains. Do not exceed a speed of 30 mph or
50 km/h.
Do not initialize the Fl at 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 DT C temporarily, refer to
page 98.<
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303
Everything from A to Z
Reference
Entering the postal code for
navigation 151
Entry lamps, refer to Interior lamps 114
Entry map for destination 155
ESP Electronic Stability Program, refer to Dynamic
Stability Control DSC 97
Exhaust system, refer to Hot exhaust system 140
Exterior mirrors 55
– adjusting 55
– automatic dimming feature 56
– automatic heating 55
– folding in and out 55
External audio device 127
Eyes
– for tow-starting and towing
away 279
– for tying down loads 143
F
Failure messages, refer to
Check Control 92
Failure of an electrical consumer 275
False alarm
– avoiding unintentional alarm 38
– switching off an alarm 37
Fastening safety belts, refer to Safety belts 53
Fastest route for navigation 159
Fault messages, refer to
Check Control 92
Filter
– refer to Microfilter/activated-
charcoal filter for automatic
climate control 120
First aid pouch 277
Fixture for remote control, refer to Ignition lock 61Flash when locking/
unlocking 33
Flat tire
– Run-flat tires 258
– Tire Pressure Monitor
TPM 102
Flat Tire Monitor FTM 100
– indicating a flat tire 101
– indicator/warning lamp 101
– initialization 100
– snow chains 100,258
– system limits 100
Flat tires, refer to Tire condition 256
Fluid reservoir, refer to Washer fluid reservoir 72
Fog lamps 114
– indicator lamp 13,114
Folding up the floor panel 132
Footwell lamps, refer to Interior lamps 114
For your own safety 5
Four-wheel drive, refer to xDrive 99
Front airbags 107
FTM, refer to Flat Tire Monitor 100
Fuel 237
– average consumption 84
– gauge 83
– high-quality brands 237
– quality 237
– specifications 237
– tank contents, refer to
Capacities 289
Fuel clock, refer to Fuel gauge 83
Fuel consumption indicator
– average fuel consumption 84
Fuel d

isplay, refer to Fuel
gauge 83
Fuel filler flap 236
– releasing in the event of electrical malfunction 236
Fuses 275
G
Garage door opener, refer to
Integrated universal remote
control 122
Gasoline
– refer to Average consumption 84
Gasoline, refer to Required fuel 237
Gasoline display, refer to Fuel
gauge 83
Gas station recommendations 161
Gear indicator, automatic transmission with
Steptronic 64
Gear indicator, refer to Displays in the instrument
cluster 67
Gearshift lever 66
– automatic transmission with
Steptronic 64
– manual transmission 64
Gearshifts
– automatic transmission with Steptronic 64
– manual transmission 64
General driving notes 139
Glass roof, electric 41
– closing after electrical
malfunction 42
– convenient opening and closing 32,34
– convenient opening and closing with Comfort
Access 39
– initializing 42
– opening, closing 42
– pinch protection system 42
– power failure 42
– remote control 32
– tilting 41
Glove compartment 126
GPS navigation, refer to Navigation system 148
Online Edition for Part no. 01 40 2 609 333 - \251 08/11 BMW AG