2008 BMW M3 COUPE flat tire

Wheels and tires
114 work is not carried out properly, there is a dan-
ger of subsequent damage and related safety
h a z a r d s . M a k e s u re t h a t t h e n e w w h ee l s a r e b a l-
anced.<
Retreaded tires
BMW recommends that you do not use
retreaded tires, since driving safety may
be impaired. The causes for this include poten-
tially different tire casing structures and often
wide variations in tire age, which can result in a
limited service life.<
Correct wheels and tires
BMW recommends that you use only
wheel and tire combinations that BMW
has tested and approved for your particular
vehicle. Variations in factors such as manufac-
turing tolerances mean that even wheels and
tires with identical official size ratings could
actually have different dimensions, which could
lead to body contact and thus to severe acci-
dents. When selecting tires, also take their load
capacity into account. If non-approved wheels
and tires are used, BMW cannot evaluate their
suitability, and therefore cannot guarantee their
driving safety.<
You can inquire about the right wheel/tire com-
bination at your BMW center.
The correct combination of wheels and tires is
also necessary to ensure reliable operation of
various vehicle systems such as ABS or DSC.
To maintain good handling and vehicle
response, use only tires of a single brand and
tread configuration. After a tire has been dam-
aged, mount the previous wheel and tire combi-
nation again as soon as possible.
Wheels with Tire Pressure Monitor
TPM electronics
When mounting new tires or changing over
from summer to winter tires, or vice versa, only
use wheels with TPM electronics; otherwise the
Tire Pressure Monitor may not be able to detect
a puncture, refer to page70. Your BMW center
will be glad to advise you.
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 use in cold
winter driving conditions. Although all-season
M+S tires provide better winter traction than
summer tires, they generally 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.<
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 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. With standard-equipment tires

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Mobility
115
and other mixed tire sizes, swapping wheels
between the axles is not permissible.
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.
Ensure that the snow chains are sufficiently
tensioned at all times. If necessary, retension as
specified by the snow chain manufacturer.
Do not initialize the Flat Tire Monitor if
snow chains are mounted, otherwise the
instrument might issue an incorrect reading.<

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131
License plate lamp, center brake lamp,
rear lamps and side turn signal
indicators
These lamps use LED technology for operation.
In the event of a malfunction, please contact
your BMW center or a workshop that works
according to BMW repair procedures with cor-
respondingly trained personnel.
Repairing a flat tire with the
M Mobility System
To repair a flat tire, your BMW M3 includes an
M Mobility System. With this system you can
apply a sealant to the inside of the tire to seal
the damaged section, restore the tire inflation
pressure and continue on your trip.
Safety measures in the event of a flat tire:
Park the vehicle as far away from moving
traffic as possible and on a firm surface. Switch
on the hazard warning flashers.
Apply the parking brake and engage first gear
or reverse. Have all occupants leave the vehicle
and move beyond the danger zone, e. g. behind
the guard rails.
If necessary, erect a warning triangle
* or warn-
ing flasher
* at a suitable distance. Adhere to
country-specific regulations.<
Preparations
The M Mobility System is located in the cargo
bay under the floor board.
If possible, leave any foreign bodies that have
penetrated the tire in place.
Instructions on how to use the M Mobility
System can also be found on the device
itself. low the instructions on the sealant bot-
tle.<
Remove the label with the speed restriction
from the sealant bottle and apply it to the steer-
ing wheel.
Please note the expiry date on the sealant
bottle.<
Components of the M Mobility System
1Sealant bottle and label with speed restric-
tion
2Filling hose from sealant bottle to wheel
3Connector and cable for the cigarette
lighter socket
4Holder for the sealant bottle
5Compressor
6On/off switch
7Pressure gauge for displaying the tire infla-
tion pressure
8Screw on pressure gauge to reduce tire
inflation pressure
9Hose to connect compressor and sealant
bottle or compressor and wheel
The connector, cable and connection hose are
stored in the compressor housing.

Replacing components
132
Using the M Mobility System
To repair a flat tire with the M Mobility System,
proceed as follows:
>Fill the sealant, refer to page132.
>Distribute the sealant, refer to page132.
>Produce the tire inflation pressure, refer to
page132.
Filling the sealant
Strictly follow the specified sequence,
otherwise the sealant may escape under
high pressure.<
1.Shake the sealant bottle.
2.Screw connection hose 9 onto the connec-
tor of the sealant bottle.
3.Ensure that screw 8 on the pressure gauge
is closed.
4.Unscrew the dust cap from the valve of the
defective wheel and screw filling hose 2 of
the sealant bottle onto the valve.
5.Insert the sealant bottle into the housing of
the compressor so that the bottle is upright.
6.Ensure that the compressor is switched off,
position 0.
7.Insert connector 3 into the cigarette lighter
socket in the interior of the vehicle, refer to
page90.
8.With the ignition switched on:
Switch on the compressor and let it run for
approx. 3 minutes to fill the sealant. The
inflation pressure of the tire after filling is
unimportant.
9.Switch off the compressor.
10.Detach the hoses from the sealant bottle
connector and from the tire valve.Return the M Mobility System to its storage
location in the vehicle.
Distributing the sealant
Immediately drive approx. 2 miles/3 km to
evenly distribute the sealant in the tire.
Do not exceed a speed of 35 mph/
60 km/h. If possible, do not fall below a
speed of 12 mph/20 km/h.<
Producing the tire inflation pressure
1.After driving approx. 2 miles/3 km, stop at a
suitable location.
2.Connect connection hose9 of the com-
pressor directly to the tire valve.
3.Insert connector 3 into the cigarette lighter
socket in the interior of the vehicle.
4.Adjust the tire inflation pressure to 29 psi/
200 kPa. With the ignition switched on, pro-
ceed as follows:
>To increase the inflation pressure:
Switch on the compressor, position I. To
check the current inflation pressure set-
ting, briefly switch off the compressor.
Do not let the compressor run for
more than 10 minutes, otherwise the
device will overheat and may be dam-
aged.<
>To reduce the inflation pressure: turn
screw 8 on the pressure gauge.
If the inflation pressure is not maintained,
drive the vehicle a second time, refer to
Distributing the sealant. Then repeat steps 1 to
4.
Use of the M Mobility System may be ineffec-
tual for tire damage larger than approx. 0.16 in/
4 mm. Please contact the nearest BMW center,
refer to page135, or a workshop that works
according to BMW repair procedures with cor-
respondingly trained personnel if the tire can-
not be made roadworthy with the M Mobility
System.<
The tire inflation pressure must be at least
29 psi/200 kPa. If it is not, do not continue
driving.<

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133
Continuing your trip
Do not exceed the maximum allowable
speed of 50 mph/80 km/h to avoid the risk
of an accident.<
Reinitialize the Flat Tire Monitor, refer to
page69 for more information.
Have the faulty tire and the sealant bottle of the
M Mobility System replaced as soon as possi-
ble.<
Changing wheels
The tools for changing wheels are avail-
able as optional accessories from your
BMW center.<
Jack mounting points
The jacking points are at the positions shown in
the illustration.
Vehicle battery
Battery care
The battery is 100 % maintenance-free, the
electrolyte will last for the life of the battery
when the vehicle is operated in a temperate cli-
mate. Your BMW center will be glad to advise in
all matters concerning the battery.
Charging the battery
Only charge the battery in the vehicle via the
terminals in the engine compartment with the
engine off. Connections, refer to Jump starting
on page136.
Disposal
Have old batteries disposed of by your
BMW center or hand them in to a recy-
cling center. Maintain the battery in an upright
position for transport and storage. Always
secure the battery against tipping over during
transport.<
Power failure
After a temporary power loss, the functioning of
some equipment may be limited and require
reinitialization. Individual settings may likewise
have been lost and will have to be programmed:
>Time and date
These values must be updated, refer to
page64.
>Radio
Stations must be stored again, refer to the
separate Owner's Manual for Radio.
>Glass roof
It may happen that the roof can only be
raised. The system must be initialized.
Please contact your BMW center.
>Seat and mirror memory
The positions must be stored again, refer to
page39.
>Inside rearview mirror with digital compass
The system must be calibrated, refer to
page86.
Fuses
Never attempt to repair a blown fuse and
do not replace a defective fuse with a sub-
stitute of another color or amperage rating, oth-
erwise this could lead to a circuit overload, ulti-
mately resulting in a fire in the vehicle.<

Reference
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145
Flashing:
Dynamic Stability Control DSC is regu-
lating the drive and braking forces, refer
also to page68
Dynamic Stability Control DSC is deac-
tivated, refer also to page68Driving stability limited during accelera-
tion and cornering.
Driving style must be readjusted.
Suspension control system failed, refer
also to page68Driving stability limited during accelera-
tion and cornering.
You can continue your journey, but
moderate your speed and exercise due
caution. Have the system checked as
soon as possible.
Indication in US models
The driving stability control systems,
including ABS and the Tire Pressure
Monitor, have failed, refer also to
page67You can continue your journey.
Reduced braking and driving stability.
Drive at moderate speeds, avoiding
abrupt braking maneuvers. Have the
system checked as soon as possible.
Indication
* in Canadian models
The driving stability control systems,
including ABS and the Flat Tire Monitor
or Tire Pressure Monitor
*, have failed,
refer also to page67You can continue your journey.
Reduced braking and driving stability.
Drive at moderate speeds, avoiding
abrupt braking maneuvers. Have the
system checked as soon as possible.
Indication
* in Canadian models
The driving stability control systems,
including ABS and the Flat Tire Monitor
or Tire Pressure Monitor
*, have failed,
refer also to page67You can continue your journey.
Reduced braking and driving stability.
Drive at moderate speeds, avoiding
abrupt braking maneuvers. Have the
system checked as soon as possible.
Vehicles with Flat Tire Monitor
*
Light up in yellow and red:
>Tire is deflated Carefully bring the car to a stop. Comply
with the additional information starting
on page69.
>Flat Tire Monitor not initialized Initialize Flat Tire Monitor, refer to
page69.
Light up in yellow:
Flat Tire Monitor failed. Punctures are
not indicatedHave the system checked.
12Cause What to do

Indicator and warning lamps
146Vehicles with Tire Pressure Monitor
*
Light up in yellow and red:
There is a flat tire or substantial loss of
tire pressureCarefully bring the car to a stop. Comply
with the additional information starting
on page70.
Light up in yellow:
Tire Pressure Monitor not initialized Check the inflation pressure and reset
the system, refer to page70.
The small lamp flashes in yellow and
then lights up continuously; the larger
lamp comes on in yellow:
Tire Pressure Monitor has failed. Punc-
tures are not indicatedHave the system checked. Comply with
the additional information starting on
page71.
Lights up in red:
>Transmission limp-home program
active with restricted range of
gears, possibly with reduced accel-
eration.You can continue your journey, but
moderate your speed and exercise due
caution. It may not be possible to con-
tinue the trip after stopping. Have the
system checked without delay.
Gears can be engaged without
depressing the brakeAlways depress the brake to engage a
gear.
Lights up in yellow:
>Transmission limp-home program
active with reduced range of gearsYou can continue your journey, but
moderate your speed and exercise due
caution. Have the system checked
without delay.
>Transmission position P malfunc-
tioning:
Selector lever locked in position P
with engine running or ignition
switched on and brake depressedRelease transmission lock, refer to
page51. Have the system checked as
soon as possible.
>Brake signal malfunctioning: gear
can be engaged without depress-
ing the brakeTo engage a gear while the vehicle is at
a standstill, always step on the brake.
Before leaving the vehicle, switch off
the engine. Have the system checked
as soon as possible.
12Cause What to do

Everything from A to Z
156
Everything from A to Z
Index
A
ABS Antilock Brake
System67
Acceleration assistant, refer to
Launch Control53
Accident, refer to Sending an
Emergency Request135
Activated-charcoal filter for
automatic climate control83
Adaptive Head Light77
Additives
– coolant119
Adjusting temperature inside
the car, refer to Automatic
climate control81
Adjusting the thigh support36
Airbags72
– indicator/warning lamp74
– sitting safely35
Air conditioning mode
– automatic climate control81
– ventilation83
Air distribution
– automatic81
Air flow rate81
Airing, refer to Ventilation83
Air pressure, refer to Tire
inflation pressure110
Air recirculation, refer to
Recirculated-air mode82
Air supply
– automatic climate control81
– ventilation83
Air vents80
AKI, refer to Fuel
specifications109
Alarm system25
– avoiding unintentional
alarms26
– interior motion sensor26
– switching off an alarm26
– tilt alarm sensor26All-season tires, refer to
Winter tires114
Ambient air, refer to
Recirculated-air mode82
Antifreeze
– coolant119
– washer fluid57
Antilock Brake System
ABS67
Anti-theft alarm system, refer
to Alarm system25
Anti-theft system19
Approved axle loads, refer to
Weights155
Approved gross vehicle
weight, refer to Weights155
Armrest, refer to Center
armrest88
Ashtray
– front90
– rear90
Assistance systems, refer to
Driving stability control
systems67
AUC Automatic recirculated-
air control82
Audio device, external88
Automatic
– air distribution81
– air flow rate81
– cruise control57
– headlamp control76
Automatic car washes123
Automatic climate control80
– automatic air distribution81
Automatic curb monitor42
Automatic recirculated-air
control AUC82
Automatic transmission with
Steptronic
– towing137
– tow-starting137AUTO program for automatic
climate control81
AUX-In port88
Average fuel consumption61
– setting the units62
Avoiding unintentional
alarms26
Axle loads, refer to
Weights155
B
Backrest contour, refer to
Lumbar support36
Backrests, refer to Seat
adjustment36
Backrest width adjustment37
Back seats
– refer to Rear seats38
Backup lamps
– replacing bulb129
Backup lamps, refer to Tail
lamps129
Bag holder92
Band-aids, refer to First-aid
pouch136
Bar, refer to Towing
methods138
Base plate for telephone or
mobile phone
– refer to Snap-in adapter in
the center armrest storage
compartment88
Battery133
– charging133
– disposal28,133
– jump starting136
– remote control18
– temporary power failure133
Battery renewal
– remote control28
– remote control for vehicle28
Being towed138