2011 BMW 135I CONVERTIBLE winter tires

Mobility
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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 page200.
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 1/8 in/
3 mm, although, for example, European legis-
lation only specifies a minimum tread depth of 1/16 in/1.6 mm. At tread depths below 1/8 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 1/6 in/4 mm, they become perceptibly
less suitable for winter conditions. In the inter-
est 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 1/16 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
200
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 page83.
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
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
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 page85. 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
page81.<

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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 and center brake
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 comes with run-flat tires as standard
equipment. 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
page83.
The symbol identifying run-flat tires is a circle
with the letters RSC on the sidewall, refer to
Run-flat tires, page200.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, page200.
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.
Replacing the battery
Use only vehicle battery types that are
approved by the manufacturer of your
vehicle; otherwise, the vehicle may be damaged
or some functions may become partly or com-
pletely unavailable.<
After replacing the battery, have it paired with
the vehicle at your BMW center so that all con-
venience functions are completely available.

Everything from A to Z
238
Everything from A to Z
Index
A
ABS Antilock Brake
System81
Acceleration assistant, refer to
Launch Control64
Accessories, refer to The
individual vehicle5
Accident, reporting, refer to
Emergency Request219
Activated-charcoal filter99
Activating
BMW Assist186,188
Active steering86
Adaptive light control92
Additives
– coolant205
– engine oil205
Address, entering121,127
Address for navigation
– entering121
Adjusting temperature97
Airbags88
– sitting safely43
– warning lamp89
Air conditioner96
Air distribution
– automatic97
Airing, refer to Ventilation99
Air outlets, refer to Air
vents96
Air pressure, checking, refer
to Tire inflation
pressure194
Air recirculation, refer to
Recirculated-air mode98
Air vents96
Air volume98
AKI, refer to Fuel
specifications193Alarm system32
– avoiding unintentional
alarms33
– interior motion sensor33
– switching off an alarm32
– tilt alarm sensor33
Albums of music
collection160
ALL program98
All-season tires, refer to
Winter tires201
AM, waveband143
Ambient air, refer to
Recirculated-air mode98
Antenna for mobile phone170
Antifreeze
– coolant205
– washer fluid66
Antilock Brake System
ABS81
Anti-theft alarm system, refer
to Alarm system
32
Anti-theft system27
Approved axle loads, refer to
Weights229
Approved engine oils205
Approved gross vehicle
weight, refer to Weights229
Armrest, refer to Center
armrest105
Arrival time
– computer70
Ashtray106
Assistance systems, refer to
Dynamic Stability Control
DSC81
AUC Automatic recirculated-
air control98
Audible instructions, refer to
Spoken instructions132Audio140
– controls140
– switching on/off140
– tone control140
– volume140
Automatic
– air distribution97
– air volume97
– cruise control66
– headlamp control91
Automatic car washes209
Automatic climate control96
Automatic curb monitor50
Automatic high beams and
low beams, refer to High-
beam assistant93
Automatic lamps
– refer to Welcome lamps91
Automatic recirculated-air
control AUC98
Automatic Service
Request188
Automatic transmission with
Steptronic57
– selector lever lock58
– shiftlock58
– towing221
– tow-starting221
AUTO program for automatic
climate control97
AUX-IN port163
Available services188
Average fuel consumption70
– setting the units72
Average speed70
Avoid highways in
navigation130
Avoiding unintentional
alarms33
Axle loads, refer to
Weights229

Reference 245
At a glance
Controls
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Communications
Navigation
Entertainment
Mobility
Lower back support, refer to
Lumbar support45
Luggage compartment, refer
to Cargo area
Luggage rack, refer to Roof-
mounted luggage rack116
Lumbar support45
M
M+S tires, refer to Winter
tires201
Maintenance, refer to
– BMW Maintenance
System207
– Service booklet
Maintenance system207
Malfunction warnings, refer to
Check Control76
Manual car wash210
Manually unlocking parking
lock63
Manual operation
– door lock30
– fuel filler flap192
– glass roof37
– parking lock63
– transmission lock, automatic
transmission59
Manual operation with
automatic transmission59
Manual transmission57
Map for navigation
– changing scale133
– entering destination126
Map view132
Maximum cooling97
Maximum speed
– for winter tires201
Menus, refer to iDrive16
Messages176
Messages from the concierge
service177
Microfilter/activated-charcoal
filter for automatic climate
control99
Microphone for telephone14
Mirror dimming feature51Mirrors49
– automatic curb monitor50
– exterior mirrors49
– heating50
– interior rearview mirror50
Mobile phone
– adjusting volume173
– connecting, refer to Mobile
phone, pairing170
– operation via iDrive173
– pairing170
Mobile phone, installation
location, refer to Center
armrest105
Mobile phone, refer to
Telephone170
Mobile phone, refer to the
separate Owner's Manual
Modifications, technical, refer
to For your own safety5
Monitor, refer to iDrive16
Monitoring system for tire
pressures, refer to Flat Tire
Monitor82
MP3 player, connecting, refer
to AUX-IN port163
MP3 player, connecting, refer
to USB audio interface163
Multi-channel playback141
Multifunctional steering
wheel, refer to Buttons on
the steering wheel11
Multifunction switch
– refer to Turn signals/
headlamp flasher64
– refer to Wiper system65
Music, managing161
Music collection158
– backup162
– deleting162
– random sequence161
– restoring162
Music player, connecting,
refer to AUX-IN port163
Music player, connecting,
refer to USB audio
interface163
Music search159
My Info177
N
Navigation
– starting destination
guidance after entering a
destination123
– storing current position123
– voice activation127
Navigation announcements,
refer to Switching voice
instructions on/off132
Navigation data120
Navigation system120
– address book123
– bypassing a route
section131
– continuing destination
guidance130
– destination entry121
– dynamic destination
guidance131
– entering a destination by
voice127
– entering a destination
manually121
– frequently asked
questions137
– gas station
recommendations131
– planning a trip128
– route list131
– selecting destination via
map126
– selecting route criteria130
– special destinations124
– starting destination
guidance130
– terminating destination
guidance130
– traffic bulletins133
– voice instructions132
– volume adjustment132
Neck support, refer to Head
restraints46
Nets, refer to Storage
compartments105
New tires200

Everything from A to Z
248 Service, refer to Roadside
Assistance219
Service car, refer to Roadside
Assistance219
Service data in remote
control207
Service Interval Display, refer
to Condition Based Service
CBS207
Service Request187
Service requirements72
Service status188
Settings
– clock, 12h/24h format75
– date format76
– DVD154
– language79
Settings for the map view133
Setting times, refer to
Preselecting switch-on
times100
Shifting62
– 7-gear sports automatic
transmission with double
clutch61
Shifting gears with automatic
transmission with
Steptronic59
Shift into a drive position, refer
to Selector lever
positions60
Shiftlock, refer to Changing
selector lever positions58
Shift paddles on the steering
wheel62
Short commands for the voice
activation system231
Short route in navigation, refer
to Selecting route130
Shuffled, refer to Random
– CD changer152
– CD player152
Side airbags88
Side windows, refer to
Windows35
Signal horn, refer to Horn10
Sitting safely43
– airbags43
– safety belt43Ski bag107
Sliding/tilt sunroof, refer to
Glass roof, electric36
Slot for remote control55
Smokers' package, refer to
Ashtray106
Snap-in adapter
– inserting/removing180
– use170
Snap-in adapter, refer to
Center armrest105
Snow chains201
Socket, refer to Connecting
electrical appliances106
Socket for Onboard Diagnosis
OBD208
Sound, adjusting during audio
playback, refer to Tone
control140
Sound output for
entertainment on/off140
Spare fuses218
Special destinations124
Special destinations,
displaying126
Special destinations, entering
by name126
Special oils, refer to Approved
engine oils205
Specified engine oils, refer to
Approved engine oils205
Speed
– for winter tires201
Speed display, refer to
Speedometer12
Speed limit warning, refer to
Speed limit78
Speedometer12
Speed Volume141
Split screen content, refer to
Display for split screen
content, selecting20
Sport program, automatic
transmission with
Steptronic59
Sport program with 7-gear
Sports automatic
transmission with double
clutch61Sports automatic
transmission with double
clutch60
– driving dynamics control62
– idle position61
– kick-down61
– Launch Control64
– manually unlocking parking
lock63
– reverse gear61
Spray nozzles, refer to
Windshield washer
nozzles66
Stability control, refer to
Driving stability control
systems81
Start/stop button55
– starting the engine56
– switching off the engine56
Starting, refer to Starting the
engine56
Starting assistance, refer to
Jump-starting220
Starting the engine
– start/stop button55
Start menu17
State/province, for
navigation121
Station, selecting
– radio143
Status of this Owner's Manual
at time of printing5
Steam jet209,210
Steering wheel
51
– adjustment51
– buttons on steering
wheel11
– heating51
– shift paddles62
Steering wheel shift paddles,
refer to Shift paddles62
Steering with variable ratio,
refer to Active steering86
Steptronic, refer to Automatic
transmission with
Steptronic57
Storage212
Storage compartment
package105

Reference 249
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Storage compartments105
Storing
– seat position, refer to Seat
and mirror memory48
– telephone numbers, refer to
separate Owner's Manual
Storing a destination in the
address book123
Storing music158
Storing tires201
Stowage, refer to Storage
compartments105
Street, entering,
navigation122
Summer tires, refer to Wheels
and tires194
Surround141
SVCD153
SW, waveband143
Switches, refer to
Dashboard10
Switching off
– engine56
Switching off the engine
– start/stop button55
Switching on
– audio140
– CD changer140
– CD player140
– radio140
Switching the cooling function
on and off98
Switch-on times of parked car
ventilation, preselecting100
Symbols4
– status information19
T
Tachometer68
Tailgate, refer to Trunk lid31
Tail lamp, refer to Tail
lamps216
– replacing bulb216Tail lamps216
– replacing bulb216
Tank contents, refer to
Capacities230
Technical changes5
Technical data226
Telephone170
– voice commands177
Telephone, installation
location, refer to Center
armrest105
Telephone, refer to separate
Owner's Manual
TeleService185
TeleService Diagnosis186
TeleService Help186
Temperature display
– outside temperature68
– outside temperature
warning68
– setting the units72
Tempomat, refer to Cruise
control66
Thigh support44
Third brake lamp, refer to
Center brake lamp217
Three-point safety belt49
Through-loading system106
Tilt alarm sensor33
Tilt function, passenger-side
mirror50
Timer, refer to Preselecting
switch-on times100
Tire inflation pressure194
– loss83,84
Tire pressure monitoring,
refer to Flat Tire Monitor82
Tire Pressure Monitor
TPM84
– resetting the system85
– system limitations84
– warning lamp85
Tire puncture, refer to Flat Tire
Monitor83
Tire Quality Grading198Tires
– age198
– air loss85
– breaking in112
– changing, refer to Changing
wheels217
– condition199
– damage199
– inflation pressure
194
– labels198
– minimum tread depth199
– new tires200
– pressure monitoring, refer to
Flat Tire Monitor82
– pressure monitoring, refer to
Tire Pressure Monitor
TPM84
– puncture83
– retreaded200
– size198
– wear indicators, refer to
Minimum tread depth199
– winter tires201
TMC station, refer to Traffic
bulletins133
Tone
– control140
– middle setting142
Tools, refer to Onboard
vehicle tool kit213
Top 50 of music
collection160
Torque, refer to Engine
data226
Tow bar222
Tow fitting221
Tow fittings for tow-starting
and towing away221
Towing221
– car with automatic
transmission221
– methods222
– with 7-gear Sports
automatic transmission with
double clutch222
Towing and tow-starting221