2012 BMW X3 snow chains

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 requirements
The system must have been initialized when the
tire inflation pressure was correct; otherwise,
reliable signaling of a flat tire is not ensured. In‐
itialize the system after each correction of the
tire inflation pressure and after every tire or
wheel change.
System limits Sudden tire damage
Sudden serious tire damage caused by
external influences cannot be indicated in ad‐
vance.◀
A natural, even pressure loss in all four tires can‐
not be detected. Therefore, check the tire infla‐
tion pressure regularly.
The system could be delayed or malfunction in
the following situations:▷When the system has not been initialized.▷When driving on a snowy or slippery road
surface.▷Sporty driving style: slip in the drive wheels,
high lateral acceleration.▷When driving with snow chains.
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 inflation
tire pressures as reference values for the detec‐
tion of a flat tire. Initialization is started by con‐
firming the inflation pressures.
Do not initialize the system when driving with
snow chains.1."Vehicle Info"2."Vehicle status"3. "Reset"4.Start the engine - do not drive away.5.Start the initialization with "Reset".6.Drive away.
The initialization is completed while driving,
which can be interrupted at any time.
The initialization automatically continues when
driving resumes.
Indication of a flat tire The yellow warning lamp lights up. A
Check Control message is displayed.
There is a flat tire or a major loss in tire
inflation pressure.
1.Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.2.Check whether the vehicle is fitted with reg‐
ular tires or run-flat tires.
Run-flat tires, refer to page 227, are labeled
with a circular symbol containing the letters
RSC marked on the tire sidewall.
Do not continue driving without run-flat
tires
Do not continue driving if the vehicle is not
equipped with run-flat tires; continued driving
may result in serious accidents.◀
When a flat tire is indicated, DSC Dynamic Sta‐
bility Control is switched on if necessary.
Actions in the event of a flat tire
Normal tires
1.Identify the damaged tire.Seite 92ControlsSafety92
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Indicator/warning lamps
When DSC is deactivated, DSC OFF is dis‐
played in the instrument cluster.
The indicator lamp lights up: DSC is de‐
activated.
DTC Dynamic Traction
Control
The concept
The DTC system is a version of the DSC in which
forward momentum is optimized.
The system ensures maximum forward momen‐
tum on special road conditions, e.g., unplowed
snowy roads, but driving stability is limited.
It is therefore necessary to drive with appropri‐
ate caution.
You may find it useful to briefly activate DTC un‐
der the following special circumstances:▷When driving in slush or on uncleared,
snow-covered roads.▷When rocking the vehicle or driving off in
deep snow or on loose surfaces.▷When driving with snow chains.
Deactivating/activating DTC Dynamic
Traction Control
Activating the Dynamic Traction Control DTC
provides maximum traction on loose ground.
Driving stability is limited during acceleration
and when driving in bends.
Activating DTC Press the button.
TRACTION is displayed in the instru‐
ment cluster and the indicator lamp for DSC
lights up.
Deactivating DTC
Press the button again.
TRACTION and the DSC indicator lamp
go out.
Performance Control
Performance Control enhances the agility of
your vehicle.
To enhance performance during sporty driving,
the rear wheel on the inside of the curve is
braked while the resulting braking effect is
largely compensated by engine intervention.
xDrive
xDrive is the all-wheel-drive system of your ve‐
hicle. Concerted action by the xDrive and DSC
further optimize traction and driving dynamics.
The xDrive all-wheel-drive system variably dis‐
tributes the drive forces to the front and rear
axles as demanded by the driving situation and
road surface.
HDC Hill Descent Control
The concept
HDC is a downhill driving assistant that auto‐
matically controls vehicle speed on steep down‐
hill gradients. Without the brakes being applied,
the vehicle moves at slightly more than twice
walking speed.
Hill Descent Control can be activated at speeds
below approx. 22 mph/35 km/h. When driving
downhill, the vehicle reduces its speed to ap‐
prox. twice walking speed and then keeps its
speed constant.
As long as there is active braking, the system is
on standby. The system does not brake the ve‐
hicle during this time.Seite 95Driving stability control systemsControls95
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Maximum speed of winter tires
If the maximum speed of the vehicle is higher
than the permissible speed for the winter tires,
then display a corresponding sign in the field of
vision. You can obtain this sign from the tire spe‐
cialist or from your service center.
Maximum speed for winter tires
Do not exceed the maximum speed for the
winter tires; otherwise, tire damage and acci‐
dents can occur.◀
Run-flat tires
For your own safety, only use run-flat tires. No
spare tire is available in the case of a flat tire. Your
service center will be glad to advise you.
Rotating wheels between axles
The manufacturer of your vehicle advises
against swapping wheels between the front and
rear axles.
This can impair the handling characteristics.
Storage
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 pres‐
sure indicated on the side wall of the tire.Run-flat tires
Label
RSC label on the tire sidewall.
The wheels are composed of special rims and
tires that are self-supporting, to a limited de‐
gree.
The support of the sidewall allows the tire to re‐
main drivable to a restricted degree in the event
of a pressure loss.
Continued driving with a damaged tire, refer to
page 93.
Changing run-flat tires
For your own safety, only use run-flat tires. No
spare tire is available in the case of a flat tire. Your
service center will be glad to advise you.
Snow chains
Fine-link snow chains
Only certain types of fine-link snow chains have
been tested by the manufacturer of your vehicle,
classified as road-safe and recommended.
Consult your service center for more informa‐
tion.
Use
Use only in pairs on the rear wheels, equipped
with the tires of the following size:
▷205/65 R 17.▷225/60 R 17.Seite 227Wheels and tiresMobility227
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▷245/50 R 18.
No snow chains with tires of size 245/45 R
19
Do not mount snow chains on tires of size
245/45 R 19; otherwise, the vehicle can become
damaged.◀
Follow the chain manufacturer's instructions.
Make sure that the snow chains are always suf‐
ficiently tight. Retighten as needed according to
the chain manufacturer's instructions.
Do not initialize the Flat Tire Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
Do not initialize the Tire Pressure Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
When driving with snow chains, briefly activate
Dynamic Traction Control if necessary.
Maximum speed with snow chains
Do not exceed a speed of 30 mph/50 km/h when
using snow chains.
Seite 228MobilityWheels and tires228
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R
Radiator fluid 232
Radio 158
Radio-operated key, refer to Remote control 30
Radio ready state 59
Rain sensor 63
Random 167
Random playback 167
RDS 159
Reading out loud 206
Rear lamps 240
Rear socket 118
Rearview mirror 52
Rear window de‐ froster 111, 113
Recirculated-air filter 114
Recirculated-air mode 110, 113
Recommended tire brands 226
Refueling 218
Remaining range 73
Reminders 205
Remote control/key 30
Remote control, malfunc‐ tion 36
Remote control, universal 116
Replacement fuse 242
Replacing parts 236
Replacing wheels/tires 226
Reporting safety defects 8
Reserve warning, refer to Range 73
Resetting, Tire Pressure Mon‐ itor TPM 89
Retaining straps, securing cargo 132
Retreaded tires 226
Roadside Assistance 210
Roadside parking lamps 82
Roller sunblinds 44
Roof load capacity 256
Roof-mounted luggage rack 130 Rope for tow-starting/tow‐
ing 246
Route 147
Route criteria, route 146
Route, displaying 147
Routes, avoiding 146
Route section, bypassing 147
RPM, engine 255
RSC Runflat System Compo‐ nent, refer to Run-flat
tires 227
Rubber components, care 250
Run-flat tires 227
S
Safe braking 129
Safety 6
Safety belt reminder 50
Safety belts 49
Safety belts, care 250
Safety switch, windows 43
Safety systems, airbags 85
Satellite radio 160
Saving fuel 134
Scale, changing during navi‐ gation 149
Screen, refer to Control Dis‐ play 16
Screwdriver 236
Screw thread for tow fit‐ ting 247
Search, refer to BMW Search 211
Seat and mirror memory 52
Seat belts, refer to Safety belts 49
Seat heating, front 48
Seat heating, rear 49
Seating position for chil‐ dren 55
Seats 46
Selection list in instrument cluster 75 Selector lever, automatic
transmission 65
Sensors, care 251
Service and warranty 7
Service requirements, Condi‐ tion Based Service CBS 234
Service requirements, dis‐ play 74
Service, Roadside Assis‐ tance 244
Settings on Control Dis‐ play 78
Settings, storing for seat, mir‐ ror 52
Shifting, automatic transmis‐ sion 65
Shift paddles on steering wheel 67
Short commands 258
Side airbags 85
Signaling, horn 12
Signals when unlocking 35
Sitting safely 46
Size 254
Slide/tilt glass roof 44
Smallest turning circle 255
Snap-in adapter, mobile phone 196
Snow chains 227
Socket 118
Socket, OBD Onboard Diag‐ nostics 235
Software applications, iPhone 214
Software update 185
Spare fuse 242
Special destinations, naviga‐ tion 141
Specified engine oil types 232
Speed, average 76
Speed limit, setting 76
Speed Volume, volume equal‐ ization 157
Split screen 20
Split screen map settings 150 Seite 274ReferenceEverything from A to Z274
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