2008 BMW 335I CONVERTIBLE winter tires

Mobility
221Reference
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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 page222.
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 legisla-
tion 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 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 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 be extremely dan-
gerous for vehicle occupants and other road
users.<
Tire age
For various reasons, such as the development
of brittleness, BMW recommends tire replace-
ment after no more than 6 years, regardless of
the actual wear of the tires.

Wheels and tires
222 The manufacturing date of tires is contained in
the tire coding:
DOT ... 0705 means that the tire was manufac-
tured in week 07 of 2005.
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-
supporting 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, page93.
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.
For safety reasons, BMW recommends
that damaged Run-Flat Tires be replaced
rather than repaired. Otherwise, subsequent
damage cannot be ruled out.<
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
RPA.
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 page93. Your BMW center
will be glad to advise you.

Mobility
223Reference
At a glance
Controls
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Navigation
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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.<
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
Always 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.
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 manufac-
turer's instructions when mounting snow
chains. Do not exceed a speed of 30 mph or
50 km/h.
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
page90.<

Replacing components
234 2.Loosen the bulb holder at the clip, see
arrow, and pull out.
3.Turn signal indicator: apply gentle pressure
to the bulb while turning it to the left for
removal and replacement.
Backup lamps and brake lamps: take out
the bulbs and change them.
4.Re-engage the bulb holder so that it audibly
clicks into place.
5.Reattach the cover in the cargo bay.
Convertible
1.Turn the screws on the corresponding side,
see arrow, by 90° and remove the cover.
2.While applying light pressure, turn the bulb
holder of the turn signal bulb to the left.
3.Remove and replace the bulb.4.Re-engage the bulb holder so that it audibly
clicks into place.
5.Reattach the cover in the cargo bay.
License plate lamp 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 is equipped with Run-Flat Tires as
standard. This removes 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
page93.
The symbol identifying Run-Flat Tires is a circle
with the letters RSC on the sidewall, refer to
Run-Flat Tires, page222.
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, page222.
The tools for changing wheels are avail-
able as optional accessories from your
BMW center.<

Everything from A - Z
252
Everything from A - Z
Index
"..." Identifies Control Display
texts used to select
individual functions and
refers you to the page where
these texts can be found.
A
ABS Antilock Brake
System89
ACC, refer to Active cruise
control67
Accident, refer to Sending an
Emergency Request236
Activated-charcoal filter for
automatic climate
control108
"Activation time"109
Active cruise control67
– indicator lamps70
– malfunction71
– selecting distance69
– sensor71
Active steering96
– warning lamp96
Adaptive Head Light101
"Add digits" for mobile
phone194
Additives
– coolant227
"Address book" in
navigation142
Address for navigation
– deleting144
– entering134,142
– selecting143
– storing142
– storing current position143
"Add to destination
list"137,139
Adjusting temperature inside
the car, refer to Automatic
climate control105Adjusting the thigh support46
Adjusting the tone during
audio operation, refer to
Tone control161
Airbags97
– indicator/warning lamp98
– sitting safely45
Air conditioning mode
– automatic climate
control105
– ventilation107
Air distribution
– automatic106
– individual105
Air flow rate106
Airing, refer to Ventilation107
Air pressure, refer to Tire
inflation pressure212
Air recirculation, refer to
Recirculated-air mode106
"Air recirculation on / off"54
Air supply
– automatic climate
control105
– ventilation107
Air vents104
AKI, refer to Fuel
specifications211
Alarm system35
– avoiding unintentional
alarms36
– interior motion sensor36
– switching off an alarm35
– tilt alarm sensor36
"All channels" for satellite
radio171
All-season tires, refer to
Winter tires223
"All stations", displaying with
the radio164
All-wheel drive, refer to
xDrive90
"AM", waveband160,164Ambient air, refer to
Recirculated-air mode106
Antenna for mobile phone186
Antifreeze
– coolant227
– washer fluid65
Anti-theft alarm system, refer
to Alarm system35
Anti-theft system29
Approved axle loads, refer to
Weights247
Approved gross vehicle
weight, refer to Weights247
Armrest, refer to Center
armrest114
Arrival time, refer to
Computer76
Arrival time, refer to Starting
destination guidance147
Arrow display for
navigation148
"Arrow display" in
navigation148
Ashtray
– front116
– rear116
Assistance systems, refer to
Driving stability control
systems89
Assistance window20
– refer to iDrive20
AUC Automatic recirculated-
air control106
"Audio"163,167
Audio160
– controls160
– switching on/off160
– tone control161
– volume161
"Audio", refer to Tone
control161
Audio device, external114

Everything from A - Z
260 Interior rearview mirror53
– automatic dimming
feature53
– compass112
Interlock, refer to Disengaging
the remote control61
Intermittent mode of the
wipers64
J
Jacking points235
Joystick, refer to iDrive16
Jumpering, refer to Jump
starting237
Jump starting237
K
Key, refer to Integrated key/
remote control28
Keyless go, refer to
Convenient access36
Keyless opening and closing,
refer to Convenient
access36
Key Memory, refer to Personal
Profile28
Kick-down62
– automatic transmission with
Steptronic62
Knock control211
L
Lamps
– automatic headlamp
control100
– parking lamps/low
beams100
Lamps and bulbs, replacing
bulbs231
"Language / Units"78
"Language / Units" in
navigation133,150
"Language" on the Control
Display86
"Languages" in
navigation133,150Lap-and-shoulder belt, refer
to Safety belts51
Lashing eyes, refer to
Securing cargo128
Last destinations, refer to
Destination list141
"Last seat pos."51
LATCH child-restraint fixing
system57
LED hand lamp114
LED Light-emitting
diodes232
Length, refer to
Dimensions245
License plate lamp, replacing
bulb234
Light-emitting diodes
LED232
Lighter116
– connecting electrical
appliances116
"Lighting"64
Lighting
– instruments103
– lamps and bulbs231
– vehicle, refer to Lamps100
Light-metal alloy wheels, care,
refer to Caring for your
vehicle brochure
Light switch100
"Limit"85
Limit, refer to Speed limit85
Load securing equipment,
refer to Securing cargo128
Lock buttons, doors, refer to
Locking33
Locking
– adjusting confirmation
signal31
– from inside33
– from outside30
– without remote control, refer
to Convenient access36
Locking and unlocking doors
– confirmation signals31
– from inside32
– from outside29
Low-beam headlamps100
– automatic
100Lower back support, refer to
Lumbar support47
Luggage compartment lid33
– convenient access37
– emergency operation, refer
to Opening manually33
– emergency release34
– locking or unlocking
separately34
– opening from inside33
– opening from outside33
– opening manually33
– remote control31
Luggage rack, refer to Roof-
mounted luggage rack129
Lumbar support47
M
M+S tires, refer to Winter
tires223
Maintenance, refer to Service
Booklet
Maintenance system229
Malfunction
– automatic transmission with
Steptronic63
– luggage compartment lid33
– tires93
Malfunction warnings, refer to
Check Control83
Manual mode, automatic
transmission with
Steptronic62
"Manual" on the radio165
Manual operation
– door lock32
– driver's door32
– fuel filler door210
– glass roof40
– luggage compartment lid33
– transmission lock, automatic
transmission63
Manual transmission61
Map
– changing scale149
– destination entry139
"Map direction of travel"149
"Map facing north"149

Reference 261
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Master key, refer to Remote
control with integrated
key28
Maximum cooling106
Maximum speed
– with winter tires223
Measurements, refer to
Dimensions245
Memory, refer to Seat and
mirror memory50
Memory keys,
programmable21
MENU button16
Menus
– Control Display17
Menus, refer to iDrive16
Message list, traffic
information152
Microfilter
– BMW Maintenance
System229
– for automatic climate
control108
Microfilter/activated-charcoal
filter
– BMW Maintenance
System229
Microphone
– telephone14
– voice input14
Mirror dimming feature53
Mirrors52
– automatic curb monitor53
– exterior mirrors52
– heating53
– interior rearview mirror53
– memory, refer to Seat and
mirror memory50
"Missed calls"194
Missed calls194Mobile phone
– accepted calls194
– adjusting volume191
– calling193
– ending call193
– installation location, refer to
Center armrest114
– missed calls194
– operation via iDrive191
– redialing194
– refer to separate Owner's
Manual
– Top 8194
– touch tone dialing196
Mobile phone, installation
location, refer to Center
armrest114
Mobile phone, refer to the
separate Owner's Manual
Modifications, technical, refer
to For your own safety5
Monitor, refer to iDrive
controls16
Monitoring system for tire
pressures, refer to Flat Tire
Monitor92
"Monitor on / off"54
Most recent mobile phone
numbers194
MP3, refer to Compressed
audio files173
Multifunctional steering
wheel, refer to Buttons on
the steering wheel11
Multifunction switch
– refer to Turn signals/
headlamp flasher63
– refer to Wiper system64
Multimedia screen, refer to
iDrive16
Music tracks, refer to
Tracks174
"Mute on / off"54
N
"Navigation"134,140Navigation announcements,
refer to Switching voice
instructions on/off150
Navigation drive, location132
Navigation DVD132
Navigation system132
– address book142
– changing a route151
– destination entry134
– destination guidance in
assistance window132
– destination list141
– displaying current
position155
– entering a destination
manually134,138
– last destinations141
– navigation DVD132
– opening134
– route display148
– route list150
– searching for a special
destination140
– selecting destination using
information140
– selecting destination via
map139
– selecting route criteria145
– starting destination
guidance147
– switching off, refer to
Terminating/continuing
destination guidance147
– terminating/continuing
destination guidance147
– voice instructions150
– volume adjustment151
"Navigation voice
instructions"133
"Navigation voice
instructions" via buttons on
the steering wheel54
Neck support, refer to Head
restraints47
Nets, refer to Storage
compartments114
"New address" in
navigation143
"New destination"135,139

Everything from A - Z
264 Route145
– arrow display148
– changing151
– display148
– displaying streets and
towns/cities150
– displaying town150
– list150
– map display149
– selecting145
– selecting criteria145
RSC Runflat System
Component, refer to Run-
Flat Tires222
Rubber parts, refer to Caring
for your vehicle brochure
Runflat System Component
RSC, refer to Run-Flat
Tires222
Run-Flat Tires222
– continuing driving with a
damaged tire93
– flat tire93
– Flat Tire Monitor93
– new tires222
– replacing222
– tire inflation pressure212
– winter tires223
S
Safety-belt height
adjustment51
Safety belts51
– belt hand-over52
– damage51
– indicator/warning lamp51
– reminder51
– sitting safely45
Safety belts, care, refer to
Caring for your vehicle
brochureSafety systems
– airbags97
– Antilock Brake System
ABS89
– brake system89
– driving stability control
systems89
– Dynamic Stability Control
DSC89
– rollover protection system,
convertible98
– safety belts51
Safety tires, refer to Run-Flat
Tires222
"SAT"160,170
Satellite radio170
– displaying additional
information171
– enabling170
– selecting channel171
– storing channel171
Saving fuel124
"Scan"
– sampling radio stations165
– sampling tracks on CD175
Scan
– CD changer175
– CD player175
– radio165
"Scan all" for audio mode175
"Scan directory" for audio
mode175
Screen, refer to iDrive
controls16
Screw thread for tow
fitting239
SDARS, refer to Satellite
radio170
Seat adjustment
– electric46
– mechanical46
Seat and mirror memory50
Seat belt reminder, refer to
'Fasten safety belts'
reminder51
Seat heating49Seats45
– adjusting electrically46
– adjusting the seats46
– heating49
– memory, refer to Seat and
mirror memory50
– saving a setting, refer to Seat
and mirror memory50
– sitting safely45
Securing cargo119,121
Securing the vehicle
– from inside32
– from outside29
"Select as
destination"141,205
"Select current speed"86
Selecting a country for
navigation135
Selecting an audio source160
Selecting distance for active
cruise control69
Selecting menu items19
Selecting new scale for
navigation149
Selector lever
– automatic transmission with
Steptronic62
Selector lever lock, refer to
Changing selector lever
positions, shiftlock62
Selector lever positions
– automatic transmission with
Steptronic62
Service, refer to Roadside
Assistance236
Service car, refer to Roadside
Assistance236
Service data in the remote
control229
"Service Info"80,203,226
Service Interval Display, refer
to Condition Based Service
CBS229
"Service Request"196,203
Service requirement display,
refer to Condition Based
Service CBS229
"Service
requirements"80,203,226