traction control BMW 750I XDRIVE 2012 F01 User Guide

Those grades represent the tire's ability to stop
on
wet pavement as measured under controlled
conditions on specified government test surfa‐
ces 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, cornering, hydro‐
planing, or peak traction characteristics.
Temperature
The temperature grades are A, the highest, B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel. Sus‐
tained high temperature can cause the material
of the tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire
failure. The grade C corresponds to a level of
performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety
Standard No. 109. Grades Band A represent
higher levels of performance on the laboratory
test wheel than the minimum required by law.
Temperature grade for this tire
The temperature grade for this tire is es‐
tablished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla‐
tion, or excessive loading, either separately or in
combination, can cause heat buildup and pos‐
sible tire failure.
If necessary, have the vehicle towed.◀
RSC – Run-flat tires
Run-flat tires, refer to page 251, are labeled with
a circular symbol containing the letters RSC
marked on the sidewall.
M+S
Winter and all-season tires with better cold
weather performance than summer tires. Tire tread
Summer tires
Do not drive with a tire tread depth of less than
0.12 in/3 mm.
There is an increased danger of hydroplaning if
the tread depth is less than 0.12 in/3 mm.
Winter tires
Do not drive with a tire tread depth of less than
0.16 in/4 mm.
Below a tread depth of 0.16 in/4 mm, tires are
less suitable for winter operation.
Minimum tread depth
Wear indicators are distributed around the tire's
circumference and have the legally required
minimum height of 0.063 in/1.6 mm.
They

are marked on the side of the tire with TWI,
Tread Wear Indicator.
Tire damage
General information
Inspect your tires often for damage, foreign ob‐
jects lodged in the tread, and tread wear.
Notes
Indications of tire damage or other vehicle de‐
fects:
▷ Unusual vibrations during driving.
▷ Unusual handling such as a strong tendency
to pull to the left or right.
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Reference
Mobility Communication Entertainment Navigation Driving tips Controls At a glance

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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Reference
Mobility Communication Entertainment Navigation Driving tips Controls At a glance

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

Condition Based Service
CBS 258
Confirmation signal 37
Contacts 223, 232
Control Display 19
Control Display, settings 80
Controller 19
Control systems, driving sta‐ bility 98
Convenient opening 36
Coolant 256
Coolant temperature 76
Cooler 135
Cooling function 127
Cooling, maximum 126
Cooling system 256
Corrosion on brake discs 146
Cruise control 111
Cruise control, active with Stop & Go 105
Cruising range 75
Cupholder 140
Curb weight 278
Current fuel consumption 76
Current location, storing 154
Customer Relations 237
D
Damage, tires 249
Damping control, dy‐ namic 100
Data, technical 276
Date 77
Daytime running lights 85
Defrosting, refer to Windows, defrosting 126
Destination distance 78
Destination guidance 159
Destination guidance with in‐ termediate destinations 158
Destination input, naviga‐ tion 152
Digital clock 77
Digital radio 173
Dimensions 276
Dimmable interior rearview mirror 59 Direction indicator, refer to
Turn signals 70
Display in front wind‐ shield 123
Display,
instrument cluster 75
Display lighting, refer to Instru‐ ment lighting 87
Displays 14
Displays, cleaning 273
Disposal, coolant 257
Disposal, vehicle battery 265
Distance control, refer to PDC 113
Distance, selecting for ACC 106
Distance to destination 78
Divided screen view, split screen 23
Door lock, refer to Remote control 32
Doors, Automatic Soft Clos‐ ing 39
Downhill control 99
Drive-off assistant 98
Drive-off assistant, refer to DSC 98
Driving instructions, breaking in 144
Driving notes, general 144
Driving stability control sys‐ tems 98
Driving tips 144
DSC Dynamic Stability Con‐ trol 98
DTC Dynamic Traction Con‐ trol 99
DVD/CD 179
DVD/CD notes 185
DVD/CD player, rear 199, 204
DVD changer 183
DVD settings 182
DVDs, storing 186
DVD, video 181
Dynamic Damping Con‐ trol 100
Dynamic destination guid‐ ance 165
Dynamic Drive 100 Dynamic Driving Control
102
Dynamic Stability Control DSC 98
Dynamic Traction Control DTC 99
E
EfficientDynamics, refer to Saving fuel 148
Electronic displays, instru‐ ment cluster 16
Electronic engine oil level check 255
Electronic Stability Program ESP, refer to DSC 98
Emergency detection, remote control 33
Emergency release, door lock 38
Emergency release, fuel filler flap 242
Emergency release, parking brake 67
Emergency Request 266
Emergency service, refer to Roadside Assistance 267
Emergency start function, en‐ gine start 33
Emergency unlocking, trunk lid 42
Energy Control 76
Energy recovery 77
Engine compartment 253
Engine compartment, working in 253
Engine coolant 256
Engine oil 255
Engine oil, adding 255
Engine oil additives 256
Engine oil filler neck 255
Engine oil temperature 76
Engine oil types, alterna‐ tive 256
Engine oil types, ap‐ proved 256
Engine start during malfunc‐ tion 33
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Everything from A to Z

Time of arrival 79
Tire damage
249
Tire identification marks 248
Tire inflation pressure 244
Tire Pressure Monitor TPM 91
Tires, changing 250
Tires, everything on wheels and tires 244
Tires, run-flat tires 251
Tire tread 249
Toll roads, route 160
Tone 170
Tool kit 260
Tools 260
Top View 119
Total vehicle weight 278
Tow fitting 269
Towing 268
Town/city, navigation 152
Tow-starting 268
TPM Tire Pressure Moni‐ tor 91
Traction control 99
TRACTION
program, Dynamic
Driving Control 102
Traffic bulletins, naviga‐ tion 163
Traffic situation/gray card 164
Transmission, automatic 72
Transporting children safely 61
Tread, tires 249
Treble, tone 170
Trip computer 79
Triple turn signal activa‐ tion 70
Trip odometer 77
Trunk lid 39
Trunk lid, automatic 40
Trunk lid, emergency unlock‐ ing 42
Trunk lid, hotel function 41
Trunk lid, manual opera‐ tion 40
Trunk lid via remote con‐ trol 37
Turning circle 277 Turning circle lines, backup
camera 116
Turn signals, front, bulb re‐ placement 261
Turn signals, operation 70
Turn signals, rear, bulb re‐ placement 263
U
Unintentional alarm 44
Units of measure 81
Universal remote control 132
Unlock button, automatic transmission 73
Unlocking/locking from in‐ side 39
Unlocking/locking via door lock 38
Unlocking/locking
with remote
control 36
Updates made after the edito‐ rial deadline 6
Updating software 197
Upholstery care 272
USB audio interface 191
USB interface 138
V
Vanity mirror 60
Variable steering, Integral Ac‐ tive Steering 101
Vehicle battery 265
Vehicle battery, replacing 265
Vehicle, breaking in 144
Vehicle care 272
Vehicle identification number, refer to Identification number
in the engine compart‐
ment 253
Vehicle jack 264
Vehicle paint 272
Vehicle storage 273
Vehicle wash 271
Ventilation 128
Ventilation, refer to Parked-car ventilation 130 Version of the navigation
data 166
Video playback 181
Video playback, iPhone 193
Video playback, snap-in adapter 193
Voice activation, mobile phone 219
Voice activation, short com‐ mands 280
Voice activation system 25
Volume, setting 170
W
Warning lamps 14
Warning messages, refer to Check Control 82
Warning triangle 267
Washer fluid 72
Washer fluid reservoir, ca‐ pacity 279
Washer nozzles, wind‐ shield 72
Washer system 70
Washing, vehicle 271
Water on roads 145
Weather Band 174
Weights 278
Welcome lamps 84
Wheel base, vehicle 277
Wheel change 264
Wheels, changing 250
Wheels, everything on wheels and tires 244
Wheels,
Tire Pressure Monitor
TPM 91
Width with mirrors, vehi‐ cle 276
Window defroster, rear 127
Windows, powered 44
Windshield, climate con‐ trol 145
Windshield washer fluid 72
Windshield washer noz‐ zles 72
Windshield washer system 70
Windshield wiper 70
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Everything from A to Z