2010 BMW 328I CONVERTIBLE winter tires

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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 page210.
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 pose a lethal hazard
to 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
210 The manufacturing date of tires is contained in
the tire coding:
DOT ... 3209 means that the tire was manufac-
tured in week 32 of 2009.
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, 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
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 page86. Your BMW
center will be glad to advise you.

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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 winter roads
or at temperatures below +45°F/+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
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. 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. 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
page82.<

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Lamps in the trunk lid
Coupe
1.Pry out the plastic plugs in the trim of the
trunk lid using a screwdriver and remove the
trim.
2.Release the bulb holder, see arrow, and
remove.
3.Apply gentle pressure to the bulb while
turning it to the left for removal and replace-
ment.
4.Attach the bulb holder.
5.Reattach the trim of the trunk lid and the
holder for the warning triangle.
Convertible
1.Take the warning triangle out of its holder,
refer to page231. Unscrew the holder using
the screwdriver from the onboard vehicle
tool kit.
2.Pry out the plastic plugs in the trim of the
trunk lid using a screwdriver and remove the
trim.
3.Release the bulb holder, see arrow, and
remove.4.Apply gentle pressure to the bulb while
turning it to the left for removal and replace-
ment.
5.Attach the bulb holder.
6.Reattach the trim of the trunk lid and the
holder for the warning triangle.
License plate lamp, center brake lamp,
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 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
page85.
The symbol identifying run-flat tires is a circle
with the letters RSC on the sidewall, refer to
Run-flat tires, page210.
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, page210.
The tools for changing wheels are avail-
able as optional accessories from your
BMW center.<

Everything from A - Z
248
Everything from A - Z
Index
A
ABS Antilock Brake
System82
ACC, refer to Active cruise
control63
Accident, refer to Sending an
Emergency Request230
Activated-charcoal filter for
automatic climate
control101
Active cruise control63
– indicator lamps66
– malfunction67
– selecting distance65
– sensor66
Active steering88
Adaptive brake light
– Brake Force Display89
Adaptive light control94
Additives
– coolant215
Address, entering127,133
Address for navigation
– entering127
Adjusting temperature inside
the car, refer to Automatic
climate control99
Adjusting the thigh support43
Airbags90
– indicator/warning lamp91
– sitting safely42
Air conditioning mode
– automatic climate control99
– ventilation101
Air distribution
– automatic99
Airing, refer to Ventilation101
Air pressure, refer to Tire
inflation pressure200
Air recirculation, refer to
Recirculated-air mode100Air supply
– automatic climate control99
– ventilation101
Air vents98
Air volume100
AKI, refer to Fuel
specifications199
Alarm system32
– avoiding unintentional
alarms33
– interior motion sensor33
– switching off an alarm32
– tilt alarm sensor33
Albums of music
collection166
ALL program100
All-season tires, refer to
Winter tires211
All-wheel drive, refer to
xDrive83
AM, waveband149
Ambient air, refer to
Recirculated-air mode100
Antenna for mobile phone176
Antifreeze
– coolant215
– washer fluid61
Antilock Brake System
ABS82
Anti-theft alarm system, refer
to Alarm system32
Anti-theft system27
Approved axle loads, refer to
Weights241
Approved gross vehicle
weight, refer to Weights241
Armrest, refer to Center
armrest107
Arrival time, refer to
Computer71
Ashtray109Assistance systems, refer to
Driving stability control
systems82
AUC Automatic recirculated-
air control100
Audio146
– controls146
– switching on/off146
– tone control146
– volume146
Audio device, external107
Automatic
– air distribution99
– air volume99
– cruise control61,63
– headlamp control93
Automatic car washes219
Automatic climate control98
– automatic air distribution99
Automatic curb monitor50
Automatic high beams and
low beams, refer to High-
beam assistant95
Automatic recirculated-air
control AUC100
Automatic Service
Request194
Automatic transmission with
Steptronic57
– interlock57,58
– overriding selector lever
lock59
– shiftlock, refer to Changing
selector lever position58
– sport program58
– towing232
– tow-starting232
AUTO program for automatic
climate control
99
AUX-IN
– port107
AUX-IN port169
Available services194

Reference 255
At a glance
Controls
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Mobility
J
Jacking points228
Joystick, refer to iDrive16
Jumpering, refer to Jump-
starting231
Jump-starting231
K
Key, refer to Integrated key/
remote control26
Keyless go, refer to Comfort
Access33
Keyless opening and closing,
refer to Comfort Access33
Key Memory, refer to Personal
Profile26
Kickdown58
– automatic transmission with
Steptronic58
Knock control199
L
Lamps
– automatic headlamp
control93
– parking lamps/low beams93
Lamps and bulbs, replacing
bulbs223
Lap-and-shoulder belt, refer
to Safety belts48
Lashing eyes, refer to
Securing cargo122
Last destinations130
LATCH child restraint fixing
system53
Leather care221
LED Light-emitting
diodes223
Length, refer to
Dimensions239
License plate lamp, replacing
bulb227
Light
– high-beam assistant95
Light-alloy wheels221Light-emitting diodes
LED223
Lighter109
– connecting electrical
appliances109
Lighting
– instruments96
– lamps and bulbs223
– vehicle, refer to Lamps93
Light switch93
Limit, refer to Speed limit79
Load121
Load securing equipment,
refer to Securing cargo122
Lock buttons, doors, refer to
Locking30
Locking
– adjusting confirmation
signal29
– from inside30
– from outside28
– without remote control, refer
to Comfort Access33
Locking and unlocking doors
– confirmation signals29
– from inside30
– from outside27
Low beam control, refer to
High-beam assistant95
Low-beam headlamps93
– automatic93
Lower back support, refer to
Lumbar support44
Luggage rack, refer to Roof-
mounted luggage rack122
Lumbar support44
M
M+S tires, refer to Winter
tires211
Maintenance, refer to Service
Booklet
Maintenance system217
Malfunction
– automatic transmission with
Steptronic59
– tires85Malfunction warnings, refer to
Check Control77
Manual car wash220
Manual mode, automatic
transmission with
Steptronic58
Manual operation
– door lock30
– driver's door30
– fuel filler flap198
– glass roof37
– transmission lock, automatic
transmission59
Manual transmission57
Map for navigation
– changing scale139
– entering destination132
Map view138
Master key, refer to Remote
control with integrated
key26
Maximum cooling99
Maximum speed
– with winter tires211
Measurements, refer to
Dimensions239
Memory, refer to Seat and
mirror memory47
MENU button16
Menus, refer to iDrive16
Messages182
Messages from the concierge
service183
Microfilter
– BMW Maintenance
System217
– for automatic climate
control101
Microfilter/activated-charcoal
filter
– BMW Maintenance
System217
Microphone
– telephone14
– voice commands14
Mirror dimming feature51

Everything from A - Z
258 Releasing
– hood212
Remaining distance, refer to
Cruising range70
Remote control26
– battery renewal35
– Comfort Access33
– garage door opener103
– malfunction29,34
– removing from the ignition
lock55
– service data217
– trunk lid28
Replacement fuses, refer to
Fuses228
Replacement remote
control26
Replacing bulbs, refer to
Lamps and bulbs223
Replacing tires210
Replacing tires, refer to New
wheels and tires210
Reporting safety defects6
Reserve warning, refer to Fuel
gauge70
Reset, refer to Resetting tone
settings148
Restraint systems
– for children52
– refer to Safety belts48
Retractable hardtop38
– care, refer to Caring for your
vehicle brochure
– Convenient operation28
– opening and closing39
– remote control28
Reverse
– CD changer159
– CD player159
Reverse gear
– automatic transmission with
Steptronic58
– manual transmission57
Road map138
Roadside
Assistance191,230
Roadside parking lamps95
– replacing bulbs224Roadworthiness test, refer to
Service requirements73
Roller sun blinds106
Rollover protection system,
Convertible92
– resetting92
Roof load capacity241
Roof-mounted luggage
rack122
Rope, refer to Tow-starting,
towing away233
Rotary/pushbutton, refer to
iDrive16
Route136,137
– bypassing sections137
– changing136,137
– changing criteria136
– displaying streets or towns/
cities137
– map view138
– selecting136
Route instructions, refer to
Destination guidance
through voice
instructions137
Route map, refer to Map
view138
Route section, changing137
Route selection136
RSC Runflat System
Component, refer to Run-
flat tires210
Runflat System Component
RSC, refer to Run-flat
tires210
Run-flat tires210
– continuing driving with a
damaged tire85
– flat tire85
– Flat Tire Monitor85
– new tires210
– replacing210
– tire inflation pressure200
– winter tires211
S
Safety-belt height
adjustment49Safety belts48
– belt hand-over49
– damage49
– indicator/warning lamp49
– reminder49
– sitting safely42
Safety systems
– airbags90
– Antilock Brake System
ABS82
– brake system82
– driving stability control
systems82
– Dynamic Stability Control
DSC82
– rollover protection system,
Convertible92
– safety belts48
Safety tires, refer to Run-flat
tires210
Satellite radio152
– enabling or unsubscribing
from a channel152
– favorites154
– selecting channel153
– storing channel153
– timeshift154
– Traffic Jump155
Saving fuel118
Screen, refer to iDrive
controls16
Screw thread for tow
fitting233
SDARS, refer to Satellite
radio152
Seat adjustment
– electric43
– mechanical43
Seat and mirror memory47
Seat belt reminder, refer to
"Fasten safety belts"
reminder49
Seat heating47

Reference 259
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Seats42
– adjusting electrically43
– adjusting the seats43
– heating47
– memory, refer to Seat and
mirror memory47
– saving a setting, refer to Seat
and mirror memory47
– sitting safely42
Securing cargo112,114
Securing the vehicle
– from inside30
– from outside27
Selecting a detour141
Selecting distance for active
cruise control65
Selecting new scale for
navigation139
Selector lever
– automatic transmission with
Steptronic58
Selector lever lock, refer to
Changing selector lever
positions, shiftlock58
Selector lever positions
– automatic transmission with
Steptronic58
Service, refer to Roadside
Assistance230
Service car, refer to Roadside
Assistance230
Service data in the remote
control217
Service Interval Display, refer
to Condition Based Service
CBS217
Service Request193
Service requirement display,
refer to Condition Based
Service CBS217
Service requirements73
Service status194
Settings
– changing on Control
Display79
– clock, 12h/24h format76
– DVD160
– language79
Settings and information72Settings for the map view139
Setting times, refer to
Preselecting switch-on
times102
Shifting gears
– automatic transmission with
Steptronic58
– manual transmission57
Shiftlock
– automatic transmission,
refer to Changing selector
lever positions58
Short commands for the voice
activation system242
Short route in navigation, refer
to Selecting route136
Shuffled, refer to Random
– CD changer158
– CD player
158
Side airbags90
Side windows, refer to
Windows35
Signal horn, refer to
Horn10,11
Sitting safely42
– with airbags42
– with head restraint42
– with safety belts42
Ski bag112
Ski bag for Convertible, refer
to Through-loading opening
with integrated transport
bag113
Sliding/tilt sunroof, refer to
Glass roof, electric36
Slot for remote control55
Smokers' package, refer to
Ashtray109
Snap-in adapter
– inserting/removing186
– use176
Snap-in adapter, refer to
Center armrest storage
compartment107
Socket, Onboard Diagnosis
OBD218
Socket, refer to Connecting
electrical appliances109SOS, refer to Sending an
Emergency Request230
Sound, adjusting during audio
playback, refer to Tone
control146
Sound output for
entertainment on/off146
Spare fuses228
Special destinations130
Special destinations,
displaying132
Special destinations, entering
by name131
Speed
– run-flat tires85
– with winter tires211
Speed limit79
Speed limit warning, refer to
Speed limit79
Speedometer12
Speed Volume147
Split screen, refer to Control
Display, switching on/off19
Split screen content, refer to
Display for split screen
content, selecting19
Spray nozzles, refer to
Cleaning windshield and
headlamps61
Stability control, refer to
Driving stability control
systems82
Start/stop button55
– starting the engine56
– switching off the engine
56
Starting, refer to Starting the
engine56
Starting assistance, refer to
Jump-starting231
Starting difficulties
– jump-starting231
Starting the engine
– start/stop button55
Start menu17
State/province, for
navigation127
Station, selecting
– radio149