snow chains BMW 750LI SEDAN 2008 Owners Manual

Technology for comfort, convenience and safety
88 as fishtailing or sliding of the vehicle's front
wheels. In these cases, DSC helps the vehicle
safely stay on course within the physical limits
by reducing the engine output and by applying
the brakes in the individual wheels.
The laws of physics cannot be repealed,
even with DSC. An appropriate driving
style always remains the responsibility of the
driver. Do not squander your added margin of
safety by driving dangerously; otherwise you
run the risk of causing an accident.<
Deactivating DSC
1.Press the button to open the start
menu.
2.Move the controller toward "Settings".
3.Select "DTC" and press the controller for at
least 3 seconds.
The LED for "DTC" and the DSC indicator lamp
on the Info Display light up. DTC Dynamic Trac-
tion Control and DSC Dynamic Stability Control
are deactivated together. Interventions promot-
ing stability and forward momentum will no
longer be carried out.
To promote enhanced operating stability, reac-
tivate DSC again as soon as possible.
Activating DSC
Select "DTC" and press the controller.
The LED on the Control Display and the DSC
indicator lamp on the Info Display go out.
For control purposes
The indicator lamp flashes:
DSC is controlling the drive forces and
brake forces. The indicator lamp comes on:
DSC is deactivated.
DTC Dynamic Traction Control
DTC is a version of DSC that is optimized for
forward momentum in special road conditions.
The system ensures maximum forward
momentum, but with limited driving stability.
Therefore, drive with appropriate caution.
You may find it useful to briefly activate DTC
under the following special circumstances:
>When driving on snow-covered uphill
grades, in slushy snow or on uncleared,
snow-covered roads
>When rocking a stuck vehicle free or when
starting off in deep snow or on loose ground
>When driving with snow chains
Activating DTC
iDrive, for principle details, refer to page16.
1.Press the button to open the start
menu.
2.Move the controller toward "Settings".
3.Select "DTC" and press the controller.
The LED for "DTC" and the DTC indicator lamp
on the Info Display light up.
For control purposes
The indicator lamp flashes:
DTC is controlling the drive forces and
brake forces.
The indicator lamp comes on:
DTC is activated.

Technology for comfort, convenience and safety
90 There are two programs.
With each press of the controller, you can
switch back and forth between "Comfort" and
"Sport".
Comfort program
The Comfort program is suitable for use
throughout the vehicle's entire speed range and
regardless of load.
Sport program
You should select the Sport program for consis-
tently performance-oriented response from
shock absorbers and steering.
FTM Flat Tire Monitor*
The concept
The Flat Tire Monitor keeps track of the infla-
tion pressures in the four mounted tires as you
drive. The system triggers an alert whenever
the inflation pressure drops significantly in rela-
tion to the pressure in another tire.
When a loss of pressure occurs, the rolling
radius changes and with it, the rotational speed
of the wheels. This change is detected and sig-
naled as a flat tire.
Functional requirements
To ensure the reliable signaling of a flat tire, the
system must be initialized at the correct tire
inflation pressure.
The initialization must be repeated after
every correction of the tire inflation pres-
sure and after every tire or wheel change.<
System limits
The Flat Tire Monitor cannot indicate
sudden severe tire damage caused by
outside factors and does not detect a natural,
even pressure drop in all four tires.<
In the following situations, the system could be
delayed or malfunction:
>When the system has not been initialized.>When driving on snow-covered or slippery
road surfaces.
>Performance-oriented style of driving: slip
in the drive wheels, high lateral acceleration.
>When driving with snow chains
*.
Initializing system
The initialization is completed during driv-
ing, which can be interrupted at any time.
The initialization automatically continues when
driving resumes. Do not initialize the system
when driving with snow chains
*.<
iDrive, for principle details, refer to page16.
1.Select "Settings".
2.Select "Vehicle" and press the controller.
3.Select "Tires: FTM" and press the control-
ler.
The initialization menu appears.
4.Start the engine, but do not begin to drive.
5.Select "Reset tire pressure" and press the
controller.
During the initialization, "Reset will be com-
pleted while driving. A tire pressure loss
cannot be detected while resetting. Status:
resetting FTM…" appears on the Control
Display.

Wheels and tires
206
Recommended tire sizes and brands
BMW recommends particular tire brands for
each tire size. You will recognize them by the
clearly visible BMW identification on the tire
sidewall.
With proper use, these tires meet the highest
standards for safety and handling characteris-
tics.
Run-flat tires
When installing new tires or when changing
from summer tires to winter tires or vice versa,
for your own safety, use run-flat tires. No spare
wheel is provided in the event of a flat. Your
BMW center will be glad to advise you.
For safety reasons, BMW recommends
that you not have damaged run-flat tires
repaired; they should be replaced.<
Special characteristics of winter tires
BMW recommends winter tires for use in cold
winter driving conditions. Although so-called
all-season M+S tires provide better winter trac-
tion than summer tires, they generally fail to
provide the same levels of cold-weather perfor-
mance as winter tires.
Observing speed ratings
Never exceed the maximum speed for
which the winter tires are rated.<
Storage
Always store wheels or 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.
Wheel changing between axles
BMW does not recommend changing the front
wheels to the rear or vice versa as this can dam-
age handling characteristics.
Snow chains*
Only certain fine-link snow chains are tested,
classified as road-safe, and recommended by
BMW. Consult your BMW center for more infor-
mation. Use on winter tires is only permissible in
pairs on the rear wheels. Follow the manufac-
turer's instructions when installing snow
chains. Do not exceed 30 mph/50 km/h with the
chains mounted.
Do not initialize the Flat Tire Monitor after
mounting snow chains. When you are
driving with snow chains, it can be beneficial to
activate DTC briefly, refer to page88.<

Everything from A to Z
246 Shifting, for automatic
transmission with
Steptronic62
Shiftlock, refer to Selecting
transmission range62
Short commands of the voice
command system230
"Shortest route",
navigation142
"Short info", programmable
buttons52
Shoulder support
adjustment45
Side airbags95
Side-mounted turn signals,
replacing bulbs214
Side window blind, refer to
Sun blinds112
Signal horn, refer to Horn11
Sitting safely43
– with airbags43
– with head restraint43
– with safety belts43
Ski bag117
Sliding/tilt sunroof, refer to
Glass sunroof, electric41
Smokers' package, refer to
Ashtray115
Snap-in adapter181
Snow chains206
Socket
– for Onboard
Diagnostics212
– for remote control, refer to
Ignition lock57
Soft closure aid
– doors, refer to Automatic
soft closing35
– luggage compartment lid,
refer to Automatic soft
closing36
SOS, refer to Initiating an
emergency call219
Spare fuses218
Spare key30
– adapter30
Spare tire216
Spare wheel, refer to Spare
tire216Special oils, refer to Approved
engine oils209
Speed
– average77
– limit82
Speed-dependent
volume154
Speed limit82
Speedometer12
"Speed Vol.", speed-
dependent volume
control154
"Split"
– assistance window for
onboard data83
– navigation, refer to Display in
assistance window130
Split screen view, refer to
Assistance window20
"Sport", EDC Electronic
Damper Control90
Sport program
– automatic transmission with
Steptronic63
– EDC Electronic Damper
Control90
Stability control, refer to
Driving stability control
systems87
Star button, refer to
Programming button
function52
"START", BMW Assist190
"START / RESET", trip
computer78
Start/Stop button57
Starting, refer to Starting
engine57
Starting difficulties, jump
starting220
Starting engine57
"State / Province",
navigation132
"State inspection"79
Stations
– refer to Radio156
– storing for radio158
"Status", BMW
Assist191,193"Status: Resetting TPM...",
Tire Pressure Monitor92
"Status: Tire low!", Tire
Pressure Monitor93
"Status: TPM active", Tire
Pressure Monitor92
Status lines20
– in the assistance window21
Steering wheel
– adjustment51
– assistance getting in and
out52
– buttons on steering
wheel11
– heating52
– memory46
– programmable button52
– with multi-function
buttons11
Steptronic, refer to Automatic
transmission with
Steptronic63
"STOP", trip computer78
Stopwatch
– starting and stopping83
– taking an intermediate time
reading83
Storage, tires206
Storage
compartments114
,115
– refer to Center armrest,
front113
– refer to Center armrest,
rear114
"STORE", radio158
"STORE DATE", deadlines for
state vehicle inspections80
Storing current position147
Storing desired speeds, refer
to Programmable cruise
control68
Storing destination by
voice141
Storing numbers, refer to
Phone book186
Storing sitting position, refer
to Seat, mirror and steering
wheel memory46