2012 BMW 128I flat tire

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Coupe: tire inflation pressures for the 128i
Coupe: tire inflation pressures for the 135i
Tire size Pressure specifications in psi/kPa
Traveling speeds up
to a max. of
100 mph/160 km/hTraveling speeds
including those
exceeding
100 mph/160 km/h
All pressure specifications in the table are
indicated in psi/kilopascal with cold tires.
Cold = ambient temperature
195/55 R 16 87 H M+S 32/220 38/260 35/240 42/290
205/55 R 16 91 H M+S
205/50 R 17 89 H M+S32/220 35/240 35/240 42/290
Front: 205/50 R 17 89 V 32/220 - 36/250 -
Rear: 225/45 R 17 91 V - 35/240 - 44/300
Front: 215/40 R 18 85 Y 32/220 - 35/240 -
Rear: 245/35 R 18 88 Y - 39/270 - 42/290
Compact spare wheel
*:
T 125/80 R 17 99 MTraveling speeds up to a max. of 50 mph/80 km/h
60/420
Tire size Pressure specifications in psi/kPa
Traveling speeds up
to a max. of
100 mph/160 km/hTraveling speeds
including those
exceeding
100 mph/160 km/h
All pressure specifications in the table are
indicated in psi/kilopascal with cold tires.
Cold = ambient temperature
205/50 R 17 89 H M+S 33/230 36/250 38/260 42/290
Front: 215/40 R 18 85 Y 36/250 - 38/260 -
Rear: 245/35 R 18 88 Y - 39/270 - 42/290
Compact spare wheel
*:
T 125/80 R 17 99 MTraveling speeds up to a max. of 50 mph/80 km/h
60/420

Wheels and tires
210
Convertible: tire inflation pressures for the 128i
Tire size Pressure specifications in psi/kPa
Traveling speeds up
to a max. of
100 mph/160 km/hTraveling speeds
including those
exceeding
100 mph/160 km/h
All pressure specifications in the table are
indicated in psi/kilopascal with cold tires.
Cold = ambient temperature
without Sport Package
205/55 R 16 91 H M+S 32/220 35/240 32/220 39/270
205/50 R 17 89 H M+S 32/220 38/260 35/240 42/290
Front: 205/50 R 17 89 V 32/220 - 35/240 -
Rear: 225/45 R 17 91 V - 36/250 - 41/280
Front: 215/40 R 18 85 Y 35/240 - 35/240 -
Rear: 245/35 R 18 88 Y - 41/280 - 41/280
Compact spare wheel
*:
T 125/80 R 17 99 MTraveling speeds up to a max. of 50 mph/80 km/h
60/420
with Sport Package
205/55 R 16 91 H M+S 32/220 35/240 32/220 39/270
205/50 R 17 89 H M+S 32/220 38/260 35/240 42/290
Front: 205/50 R 17 89 V 32/220 - 39/270 -
Rear: 225/45 R 17 91 V - 36/250 - 46/320
Front: 215/40 R 18 85 Y 35/240 - 38/260 -
Rear: 245/35 R 18 88 Y - 41/280 - 45/310
Compact spare wheel
*:
T 125/80 R 17 99 MTraveling speeds up to a max. of 50 mph/80 km/h
60/420

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Convertible: tire inflation pressures for the 135i
Tire size Pressure specifications in psi/kPa
Traveling speeds up
to a max. of
100 mph/160 km/hTraveling speeds
including those
exceeding
100 mph/160 km/h
All pressure specifications in the table are
indicated in psi/kilopascal with cold tires.
Cold = ambient temperature
without Sport Package
205/50 R 17 89 H M+S 32/220 38/260 36/250 42/290
Front: 215/40 R 18 85 Y 39/270 - 39/270 -
Rear: 245/35 R 18 88 Y - 41/280 - 41/280
Compact spare wheel
*:
T 125/80 R 17 99 MTraveling speeds up to a max. of 50 mph/80 km/h
60/420
with Sport Package
205/50 R 17 89 H M+S 32/220 38/260 36/250 42/290
Front: 215/40 R 18 85 Y 39/270 - 39/270 -
Rear: 245/35 R 18 88 Y - 41/280 - 45/310
Compact spare wheel
*:
T 125/80 R 17 99 MTraveling speeds up to a max. of 50 mph/80 km/h
60/420

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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.
Sustained 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 Vehi-
cle Safety Standard No. 109. Grades B and A
represent higher levels of performance on the
laboratory test wheel than the minimum
required by law.
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive speed,
underinflation, or excessive loading, either sep-
arately or in combination, can cause heat
buildup and possible tire failure.<
RSC – run-flat tires
You will recognize run-flat tires by a circular
symbol containing the letters RSC on the side
of the tire, refer to page214.
M+S
Winter and all-season tires.
These have better winter properties than sum-
mer tires.
XL
Designation for specially reinforced tires.
Tire condition
Inspect your tires frequently for tread wear,
signs of damage and for foreign objects lodged
in the tread. Check the tread depth.
Minimum tread depth
The tread depth should not drop below 0.12 in/
3 mm, although, for example, European legisla-
tion only specifies a minimum tread depth of 0.063 in/1.6 mm. At tread depths below 0.12 in/
3 mm there is an increased risk of high-speed
hydroplaning, even when only small amounts of
water are present on the road surface.
When winter tires wear down past a tread depth
of 0.16 in/4 mm, they become perceptibly less
suitable for winter conditions. In the interest of
safety, new tires should be installed.
Wear indicators in the base of the tread groove
are distributed around the tire's circumference;
the letters TWI, for Tread Wear Indicator, on the
tire's sidewalls identify tires that incorporate
these wear indicators. Once the tire tread has
worn down to the wear indicators, the tire has
worn to a depth of 0.063 in/1.6 mm.
Wheel/tire damage
Please note that low-profile tires cause wheels,
tires and suspension parts to be more suscep-
tible to road hazard and consequential dam-
ages.
Unusual vibrations encountered during normal
vehicle operation can indicate tire failure or
some other vehicle defect. This can, for exam-
ple, be caused by driving over curbs. The same
applies to any other abnormal road behavior,
such as pulling severely to the right or left.
In these cases, reduce speed immedi-
ately and have wheels and tires thor-
oughly checked. To do so, drive carefully to the
nearest BMW center or tire shop that works
according to BMW repair procedures with cor-
respondingly trained personnel. If necessary,
have the vehicle towed there.
Otherwise, tire damage can pose a lethal hazard
to vehicle occupants and other road users.<

Wheels and tires
214
Run-flat tires
The symbol identifying run-flat tires is a circle
with the letters RSC on the sidewall.
Run-flat tires comprise a conditionally self-sup-
porting tire and a special rim. The reinforce-
ment in the sidewalls ensures that the tire can
continue to be used subject to certain restric-
tions, even if depressurized.
For information on continuing to drive with a flat
tire, refer to Indication of a flat tire on page85.
New wheels and tires
Have new wheels and tires installed only
by your BMW center or tire shop that
works according to BMW repair procedures
with correspondingly trained personnel. If this
work is not carried out properly, there is a dan-
ger of subsequent damage and related safety
hazards. Make sure that the new wheels are bal-
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
When mounting new tires or changing over
from summer to winter tires and vice versa,
mount run-flat tires for your own safety. In the
event of a flat, no spare wheel is available. Your
BMW center will be glad to advise you.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. 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, DSC or
FTM.
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 page87. 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.

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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 winter roads
or at temperatures below +457/+76.
Although all-season M+S tires provide better
winter traction than summer tires, they gener-
ally 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.<
If the car is capable of speeds higher than that
permitted for the winter tires, a label stating the
maximum permitted speed for the mounted
tires must be displayed in your field of view.
Specialist tire dealers and your BMW center
can supply these labels.
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 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. If the tires are of mixed sizes,
swapping wheels between the axles is not per-
missible.
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 manufacturer's instructions when
mounting snow chains. Do not exceed a speed
of 30 mph/50 km/h with chains.
Do not initialize the Flat Tire Monitor if
snow chains are mounted; otherwise, the
instrument might issue an incorrect reading.
When driving with snow chains, you may find it
helpful to activate DTC temporarily, refer to
page83.<

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Replacing tail lamps
Outer brake lamp
The outer brake lamp can be accessed through
a single socket.
The figure shows the right side of the vehicle.
1.Remove the cover from the panel of the
cargo area.
2.Turn the bulb holder to the left, see arrow,
and remove it.
3.Apply gentle pressure to the bulb while
turning it to the left for removal and replace-
ment.
4.Attach the bulb holder and turn it all the way
in the opposite direction.
5.Reattach the cover.
With Xenon headlamps, the parking/tail
lamp uses LED technology. After replac-
ing the bulb, ensure that the bulb holder is prop-
erly seated; otherwise, the roadside parking
lamp/tail lamp may not work.<
Inner brake lamp, turn signal, backup
lamp and Brake Force Display lamp
The bulbs are integrated in a single bulb holder.1.Remove the cover from the panel of the
cargo area.
2.Detach the bulb holder by pressing
together the clips, see arrows, and remove
it.
3.Brake lamps and turn signal: apply gentle
pressure to the bulb while turning it to the
left for removal and replacement.
4.Backup lamp: pull the bulb out of the socket
and replace it.
5.Attach the bulb holder and let it snap into
place.
6.Reattach the cover.
License plate lamps, center brake
lamp, and parking/tail lamp*
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.
Changing wheels
Your BMW is equipped with run-flat tires as
standard. This eliminates the need to change a
wheel immediately in the event of a puncture.
For information on continuing to drive with a
damaged tire, refer to Indication of a flat tire on
page85.
The symbol identifying run-flat tires is a circle
with the letters RSC on the sidewall, refer to
Run-flat tires, page214.
When mounting new tires or changing over
from summer to winter tires and vice versa,
mount run-flat tires for your own safety. In the
event of a flat, no spare wheel is available. Your
BMW center will be glad to advise you. Refer
also to New wheels and tires, page214.
The tools for changing wheels are avail-
able as optional accessories from your
BMW center.<

Everything from A to Z
254
Everything from A to Z
Index
A
ABS Antilock Brake
System83
Acceleration assistant, refer to
Launch Control66
Accessories, refer to Your
individual vehicle5
Accident, reporting, refer to
Emergency Request234
Activated-charcoal filter102
Active steering89
Adaptive Light Control95
Additives
– coolant219
– engine oil219
Address, entering125,131
Address for navigation
– entering125
Adjusting temperature100
Airbags90
– sitting safely45
– warning lamp92
Air conditioner99
Air distribution
– automatic100
Airing, refer to Ventilation102
Air outlets, refer to Air
vents99
Air pressure, checking, refer
to Tire inflation
pressure208
Air recirculation, refer to
Recirculated air mode101
Air vents99
Air volume101
AKI, refer to Fuel grade207
Alarm system34
– avoiding unintentional
alarms35
– interior motion sensor35
– switching off an alarm34
– tilt alarm sensor35Albums of music
collection163
ALL program101
All-season tires, refer to
Winter tires215
AM, waveband147
Ambient air, refer to
Recirculated air mode101
Antifreeze
– coolant219
– washer fluid68
Antilock Brake System
ABS83
Anti-theft alarm system, refer
to Alarm system34
Anti-theft system29
Appointments, refer to
Calendar193
Approved axle loads, refer to
Weights245
Approved engine oils219
Approved gross vehicle
weight, refer to Weights245
Apps202
Armrest, refer to Center
armrest108
Arrival time
– computer72
Ashtray109
Assistance systems, refer to
Dynamic Stability Control
DSC83
AUC Automatic recirculated
air control101
Audible instructions, refer to
Voice instructions136
Audio144
– controls144
– switching on/off144
– tone control144
– volume144Automatic
– air distribution100
– air volume100
– cruise control68
– headlamp control94
Automatic car washes223
Automatic climate control99
Automatic curb monitor52
Automatic high beams and
low beams, refer to High-
beam Assistant96
Automatic lamps
– refer to Welcome lamps94
Automatic recirculated air
control AUC101
Automatic Service
Request202
Automatic transmission with
Steptronic59
– selector lever lock60
– shiftlock60
– towing236
– tow-starting236
AUTO program for automatic
climate control100
AUX-IN port166
Available services202
Average fuel consumption72
– setting the units74
Average speed72
Avoid highways in
navigation134
Avoiding unintentional
alarms35
Axle loads, refer to
Weights245
B
Backrests, refer to Seats46
Backrest width adjustment47
Back seats, refer to Rear seats
– adjusting head restraints48