2010 BMW 3 SERIES snow chains

Controls
83Reference
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Mobility
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 brak-
ing 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*
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.
Hill Descent Control HDC*
HDC is a downhill driving assistant that controls
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 this
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
* lever on the
steering column.
1To increase speed
2To decrease speed

Controls
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Navigation
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Mobility
>System has not been initialized
>Driving on snowy or slippery road surface
>Performance-oriented style of driving: slip
in the drive wheels, high lateral acceleration
>Snow chains are attached
Initializing the system
The initialization is completed during driv-
ing, which can be interrupted at any time.
When driving resumes, the initialization is con-
tinued automatically.
Do not initialize the system while snow chains
are attached.<
1."Vehicle Info"
2."Vehicle status"
3."Reset"
4.Start the engine – do not drive away.
5.Start the initialization using "Reset".
6.Start driving.
The initialization is completed during the trip.
"Status: Flat Tire Monitor active" is displayed
again on the Control Display.
Indication of a flat tire
The warning lamps come on in yellow
and red. A message appears on the
Control Display. In addition, an
acoustic signal sounds. There is a flat
tire or substantial loss of tire pressure.
1.Cautiously reduce speed to below 50 mph
or 80 km/h. Avoid sudden braking and
steering maneuvers. Do not exceed a speed
of 50 mph or 80 km/h.
If the car is not equipped with run-flat
tires, refer to page216, the standard equipment by design, do not continue driv-
ing. Otherwise, a severe accident could
result if you continue driving.<
2.At the next opportunity, check the air pres-
sure in all four tires.
If all four tires are inflated to the cor-
rect pressures, the Flat Tire Monitor
might not have been initialized. The system
must then be initialized.<
3.In the event of complete tire pressure loss,
0 psi/0 kPa, you can estimate the possible
distance for continued driving on the basis
of the following guidelines:
>With a light load:
1 to 2 persons without luggage:
Approx. 155 miles/250 km
>With a medium load:
2 persons, cargo area full, or 4 persons
without luggage:
Approx. 90 miles/150 km
>With a full load:
4 or more persons, cargo area full:
Approx. 30 miles/50 km
Drive cautiously and do not exceed a
speed of 50 mph or 80 km/h; otherwise,
there is a risk of an accident. In the event of
pressure loss, vehicle handling changes. This
includes reduced tracking stability in braking,
extended braking distance and altered natural
steering characteristics.
If unusual vibration or loud noises occur during
the journey, this may be an indication that the
damaged tire has finally failed. Reduce your
speed and pull over as soon as possible at a
suitable location. Otherwise, parts of the tire
could come loose, resulting in an accident. Do
not continue driving. Instead, contact your
BMW center.<
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"

Mobility
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Recommended tire brands
Certain makes of tire are recommended by
BMW for each tire size. They are marked with a
clearly visible BMW designation on the sidewall
of the tire.
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 winter roads
or at temperatures below +45°F/+76.
Although all-season M+S tires provide better
winter traction than summer tires, they gener-
ally 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.
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 between the axles is not per-
missible.
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 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
page82.<

Reference 259
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Entry lamps, refer to Interior
lamps96
Entry map for destination130
Environmentally friendly
driving, refer to Energy
Control70
Equalizer, tone setting145
Error messages, refer to
Check Control77
ESP Electronic Stability
Program, refer to Dynamic
Stability Control DSC82
Event data recorders224
Exhaust system, refer to Hot
exhaust system117
Expanding the cargo area110
Extended connectivity of the
music player in the mobile
phone167
Exterior mirrors47
– adjusting47
– automatic dimming
feature48
– automatic heating47
– folding in and out47
External audio device106
External devices
– random sequence169
Eyes
– for tow-starting and towing
away239
– for tying down loads120
F
Failure messages, refer to
Check Control77
Failure of an electrical
consumer236
False alarm
– avoiding unintentional
alarm34
– switching off an alarm33
Fastening safety belts, refer to
Safety belts46
Fastest route for
navigation134Fast forward
– CD changer157
– CD player157
Filter
– refer to Microfilter/activated-
charcoal filter for automatic
climate control100
First aid pouch237
Fixture for remote control,
refer to Ignition lock54
Flash when locking/
unlocking28
Flat tire
– run-flat tires216
– Tire Pressure Monitor
TPM86
Flat Tire Monitor FTM84
– indicating a flat tire85
– indicator/warning lamp85
– initializing the system85
– snow chains84,217
– system limits84
Flat tires, refer to Tire
condition215
Fluid reservoir, refer to
Washer fluid reservoir60
FM, waveband147
Fog lamps95
– indicator lamp13,95
Folding rear seat backrest110
Folding up the floor panel112
Footbrake, refer to Braking
safely118
Footwell lamps, refer to
Interior lamps96
For your own safety5
Four-wheel drive, refer to
xDrive83
Free memory capacity, music
collection165
Front airbags90
FTM, refer to Flat Tire
Monitor84Fuel197
– additives198
– average consumption71
– gauge70
– high-quality brands197
– quality197
– specifications197
– tank contents, refer to
Capacities248
Fuel clock, refer to Fuel
gauge70
Fuel display, refer to Fuel
gauge70
Fuel-efficient driving, refer to
Energy Control70
Fuel filler flap196
– releasing in the event of
electrical malfunction196
Fuses236
G
Garage door opener, refer to
Integrated universal remote
control102
Gasoline
– refer to Average
consumption71
Gasoline, refer to Required
fuel197
Gasoline display, refer to Fuel
gauge70
Gas station
recommendations135
Gear indicator, automatic
transmission with
Steptronic57
Gearshift lever
– automatic transmission with
Steptronic57
– manual transmission56
Gearshifts
– automatic transmission with
Steptronic57
– manual transmission56
General driving notes117