snow chains BMW 740I 2012 F01 Owner's Manual

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
The

system can be deactivated/activated via the
TRACTION and SPORT+ programs of the Dy‐
namic Driving Control, refer to page 102.
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 requiring brake applica‐
tion, the vehicle moves at slightly more than
twice walking speed. You can activate the Hill Descent Control at
speeds below approx. 22 mph/35 km/h. When
driving downhill, the vehicle reduces its speed
to approx. twice walking speed and then keeps
its speed constant.
While you are actively braking, the system is on
standby.

The system does not brake the vehicle
during this time.
Increasing or decreasing vehicle speed
You can specify your desired speed in the range
from approx. 4 mph/6 km/h to approx. 15 mph/
25 km/h using the rocker switch of the cruise
control on the steering wheel. You can change
the vehicle speed by pressing on the accelerator
lightly. ▷
Press up the rocker switch to the point of
resistance: the speed increases gradually.
▷ Press up the rocker switch past the point of
resistance: the speed increases while the
rocker switch is pressed.
▷ Press down the rocker switch to the point of
resistance: the speed decreases gradually.
▷ Press down the rocker switch past the point
of resistance: when driving forward, the
speed

decreases to approx. 6 mph/10 km/h;
when reversing, the speed decreases to ap‐
prox. 4 mph/6 km/h.
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NORMAL
Balanced tuning between the COMFORT and
SPORT programs.
COMFORT
Comfort-oriented
tuning of the shock absorbers
for optimal traveling comfort.
Integral Active Steering*
The concept
Integral Active Steering is a combination of Ac‐
tive Steering and rear axle steering.
Active Steering varies the steering angle of the
wheels in relation to the steering wheel move‐
ment as a function of the speed.
At speeds up to approx. 37 mph/60 km/h, e.g.,
in curves, the steering angle is increased, i.e.,
steering becomes more direct.
The rear axle steering acts to increase maneu‐
verability by turning the rear wheels slightly in a
direction opposite to the front wheels.
At higher speeds, the steering angle is increas‐
ingly reduced.
The rear wheels are turned to the same angle as
the front wheels.
In critical situations, Integral Active Steering can
specifically steer the front and rear wheels to
stabilize the vehicle before the driver intervenes,
e.g., when braking where road conditions differ
on the left and right sides of the vehicle.
Initializing
In rare cases, it may become necessary to initi‐
alize the Integral Active Steering.
The warning lamp lights up. A Check
Control message is displayed.
1. With the engine running, turn the steering
wheel

all the way to the left and right several
times in a uniform manner until the warning
lamp disappears.
2. Have the system checked if the warning
lamp

does not go out after moving the steer‐ ing wheel approx. 6 times or if the steering
wheel is at an angle.
Using snow chains
Ensure
that the rear axle steering is deactivated
when using snow chains, refer to page 252.
Programs
The system offers two different programs.
The programs can be selected via Dynamic Driv‐
ing Control, refer to page 102.
SPORT
Consistently sporty tuning of the Integral Active
Steering for greater driving agility.
NORMAL
Balanced tuning of the Integral Active Steering
for optimal traveling comfort.
Malfunction
In the event of a malfunction, the steering wheel
must be turned further, while the vehicle re‐
sponds more sensitively to steering wheel
movements in the higher speed range.
The stability-enhancing intervention may be de‐
activated.
Proceed cautiously and drive defensively.
Have the system checked.
Self-leveling suspension*
The concept
The self-leveling suspension keeps the vehicle
height and ground clearance constant. The
height of the vehicle at the rear axle is main‐
tained at a predefined level under all load con‐
ditions.
The system ensures consistent comfort by
keeping spring travel constant in all driving sit‐
uations.
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Retreaded tires
Possibly substantial variations in the de‐
sign and age of the tire casing structures can
limit service life and have a negative impact on
road safety.◀
Winter tires
The manufacturer of your vehicle recommends
winter tires for winter roads or at temperatures
below +45 ℉/+7 ℃.
Although
so-called all-season M+S tires do pro‐
vide better winter traction than summer tires,
they do not provide the same level of perform‐
ance as winter tires.
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:
▷ 245/50 R 18.
▷ 245/45 R 19.
Follow the chain manufacturer's instructions.
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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 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.
Snow chain detection*
The concept
When using snow chains, you should set
whether you are driving with or without snow
chains via the iDrive.
The snow chain detection system supports you
by automatically showing the detected state on
the Control Display.
When snow chains are in use, the rear axle steer‐
ing of the Integral Active Steering* is deacti‐
vated automatically.
At speeds above the maximum allowable speed
with snow chains of 30 mph/50 km/h, the rear
axle steering is activated again automatically.
Activating the status
1. "Settings"
2. "Tire chains"
3. "Tire chains installed"
Automatic detection
If functioning properly:
▷ Snow chains are mounted. The setting is not
activated .
After you drive a short distance, a Check
Control message is shown and the state is
activated automatically.
Confirm the automatic activation.
▷ Snow chains are not mounted. The setting
is activated . At speeds above 30 mph/50 km/h, a Check
Control message is displayed. Deactivate
the status manually.
If not functioning properly:
▷ Snow chains are mounted. The setting is not
activated .
A Check Control message is not displayed.
The

automatic detection system is malfunc‐
tioning. Activate the status manually.
Activating/deactivating rear axle
steering
If the status indicating that snow chains are in
use

is activated, the rear axle steering is deacti‐
vated automatically.
At speeds above 30 mph/50 km/h, the rear axle
steering is activated again, even though snow
chains are in use.
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Wheels and tires

Seats 48
Seats, rear, adjusting 51
Seat ventilation, front 51
Seat ventilation, rear 53
Selection list in instrument cluster 77
Selector lever, automatic transmission 73
Self-leveling suspension, air suspension 101
Self-leveling suspension, mal‐ function 102
Sensors, care 273
Service and warranty 7
Service requirements, CBS Condition Based Serv‐
ice 258
Service requirements, dis‐ play 81
Service, Roadside Assis‐ tance 267
Settings on Control Dis‐ play 80
Settings, storing for seat, mir‐ rors, steering wheel 57
Shifting, automatic transmis‐ sion 72
Short commands 280
Shoulder support 49
Side airbags 88
Side View 118
Signaling, horn 12
Signals when unlocking 37
Sitting safely 48
Size 276
Ski bag 136
Slide/tilt glass roof 46
Smallest turning circle 277
Smoker's package 134
Snap-in adapter, mobile phone 221
Snow chains 251
Socket 134
Socket, OBD Onboard Diag‐ nostics 258
Software applications, iPhone 238
Software update 197 Spare fuse 265
Special destinations, naviga‐ tion 155
Specified engine oil types 256
Speed, average 78
Speed limit, setting 79
Speedometer 14
Split screen 23
Split
screen map settings 163
Spoken instructions, naviga‐ tion 161
SPORT+ program, Dynamic Driving Control 103
SPORT program, Dynamic Driving Control 103
Sport program, transmis‐ sion 74
Stability control systems 98
Start/Stop button 65
Start function during malfunc‐ tion 33
Starting aid 267
Starting the engine 65
State/province, selecting for navigation 152
Stations, stored 178
Station, storing 172
Status display, tires 91
Status information, iDrive 22
Status of Owner's Manual 6
Steering, Integral Active Steering 101
Steering wheel, adjusting 60
Steering wheel heating 60
Steering wheel memory 57
Steptronic, automatic trans‐ mission 72
Stopping the engine 66
Storage compartments 138
Storage compartments, loca‐ tions 138
Storage, tires 251
Storing the vehicle 273
Street, entering for naviga‐ tion 153
Summer tires, tread 249 Supplementary text mes‐
sage 83
Surround View 115
Suspension settings 102
Switch for Dynamic Driving Control 102
Switch-on times, parked-car ventilation 131
Switch, refer to Cockpit 12
Symbols 6
T
Tachometer 76
Tail and brake lamps 263
Tailgate 39
Tailgate, automatic 40
Tailgate
via remote control 37
Tail lamps 263
Tail lamps, bulb replace‐ ment 263
Tasks 229
Technical changes, refer to Safety 7
Technical data 276
TeleService 234
Temperature, automatic cli‐ mate control 126
Temperature display, external temperature 76
Temperature, engine oil 76
Tempomat, refer to Active Cruise Control 105
Terminal, starting aid 268
Text messages 226
Text message, supplemen‐ tary 83
Theft alarm system, refer to Alarm system 43
Theft protection, lug bolts 264
Theft protection, refer to Cen‐ tral locking system 35
Thermal camera, refer to Night Vision 120
Thigh support 48
Tilt alarm sensor 44
Tilt, seats 48
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