2009 BMW 650I CONVERTIBLE tires

Wheels and tires
216
Tire identification marks
Knowledge of the labeling on the side of the tire
makes it easier to identify and choose the right
tires.
Tire size
Speed letter
T = up to 118 mph/190 km/h
H = up to 131 mph/210 km/h
V = up to 150 mph/240 km/h
W = up to 167 mph/270 km/h
Y = up to 186 mph/300 km/h
Tire Identification Number
Tires with DOT codes meet the guidelines of
the US Department of Transportation.
DOT code:
Tire age
The tire's date of manufacture is indicated on
the sidewall:
DOT ... 1008 indicates that the tire was manu-
factured in week 10 of 2008.
BMW recommends replacing all tires at least
every 6 years, even if some tires may last for
10 years.
Uniform Tire Quality Grading
Quality grades can be found where applicable
on the tire sidewall between tread shoulder and
maximum section width. For example:
Tread wear 200 Traction AA
Temperature A
DOT Quality Grades
Tread wear
Traction AA A B C
Temperature A B C
All passenger car tires must conform to
Federal Safety Requirements in addition
to these grades.<
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov-
ernment test course.
For example, a tire graded 150 would wear one
and one-half, 1γ, times as well on the govern-
ment course as a tire graded 100. The relative
performance of tires depends upon the actual
conditions of their use, however, and may
depart significantly from the norm due to varia-
tions in driving habits, service practices and dif-
ferences in road characteristics and climate.
Traction
The traction grades, from highest to lowest, are
AA, A, B, and C.
These grades represent the tire's ability to stop
on wet pavement as measured under controlled
conditions on specified government test sur-
faces of asphalt and concrete. A tire marked C
may have poor traction performance.
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor-
nering, hydroplaning, or peak traction charac-
teristics.<
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 e.g.
Nominal width in mm
Aspect ratio in Ξ
Radial belt construction
Rim diameter in inches
Load rating
(not on ZR tires)
Speed code letter
(in front of the R on ZR tires)
245/45 R 18 96 W
e.g.
Manufacturer code
for tire make
Tire size and tire design
Tire ageDOT xxxx xxx 1008

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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 page218.
M+S
Winter and all-season tires.
These have better winter properties than sum-
mer 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.
Winter tires noticeably loose their suitability for
winter use below a tread depth of 0.16 in/4 mm.
For the sake of safety, new tires should be
installed.Wear indicators at the tread-groove base, refer
to arrow, are distributed over the tire's circum-
ference and are marked on the side of the tire
with TWI – Tread Wear Indicator. If the tire tread
has been driven down to the wear indicators, a
tread depth of 0.063 in/1.6 mm has been
reached.
Wheel/tire damage
Please note that low-profile tires cause wheels,
tires and suspension parts to be more suscep-
tible to road hazards 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. These
kinds of problems may also be signaled by other
changes in vehicle response, such as a strong
tendency to pull to the left or right.
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 dangerous to vehicle
occupants and other road users.<

Wheels and tires
218
Run-flat tires
You will recognize run-flat tires by the circular
symbol containing the letters RSC on the side
of the tire.
Run-flat tires consist of partially self-contained
tires and special rims. The sidewall reinforce-
ment ensures that the tire retains some residual
safety in the event of pressure drop and driving
remains possible to a restricted degree.
To continue driving with a damaged tire:
>With Flat Tire Monitor, refer to Indication of
a flat tire, page92
>With Tire Pressure Monitor, refer to Mes-
sage with low tire inflation pressure,
page93
New wheels and tires
Only have new wheels and tires mounted
by a BMW center or a repair shop that
works in accordance with BMW guidelines and
uses appropriately 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 does not recommend that you use
retreaded tires, as driving safety may be
impaired. The causes for this include the possi-
bly different tire casing structures and the often
wide variations in their age, which can result in a
limited service life.<
The right 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 than the
approved units – these differences could lead to
body contact, and with it the risk of severe acci-
dents. If non-approved wheels and tires are
used, BMW cannot evaluate their suitability,
and therefore cannot be held liable for driving
safety.<
You can inquire about the right wheel/tire com-
bination at your BMW center.
The right wheel-and-tire combination is
another vital factor in ensuring reliable opera-
tion of various vehicle systems such as ABS
and DSC.
To maintain good handling and vehicle
response, use only tires of a single tread config-
uration from a single manufacturer. Following
tire damage, have the original wheel and tire
combination remounted on the vehicle as soon
as possible.
Wheels with electronics for
TPM Tire Pressure Monitor
When mounting new tires or converting from
summer to winter tires or vice versa, only use
wheels with TPM electronics, otherwise the
Tire Pressure Monitor cannot detect a flat tire,
refer to page92. Your BMW center will be
happy to advise you on this subject.

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Recommended tire brands
Certain tire makes are recommended by BMW
depending on the tire size. You can recognize
these from the clearly visible BMW marking on
the tire sidewall.
When used properly, these tires comply with
the most demanding standards for safety and
vehicle response.
Run-flat tires
When mounting new tires, or changing from
summer to winter tires or vice versa, use run-flat
tires for your own safety. In addition, no spare
tire is available in case of a flat tire. Your BMW
center will be glad to advise you.
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.
Watch speed
Always observe the maximum permissi-
ble speed for the winter tires, otherwise
tire damage may occur, which can result in 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 side wall of
the tire.
Rotating wheels between axles
BMW does not recommend moving the front
wheels to the rear or vice versa, as otherwise
the handling characteristics may be impaired.
With tires of different makes and types
* such a
change is not permissible.
Snow chains*
BMW only tests certain fine-link snow chains,
classifies them as road-safe and recommends
them. Consult your BMW center for more infor-
mation.
These snow chains are approved exclusively for
use in pairs on the rear wheels with the tire size:
>245/50 R 17
>245/45 R 18
Observe the manufacturer's instructions when
mounting snow chains. Do not exceed a speed
of 30 mph/50 km/h with the chains mounted.
Do not initialize the Flat Tire Monitor after
installing snow chains as this could cause
the Flat Tire Monitor to malfunction.
When driving with snow chains, it may be prac-
tical to briefly activate DTC, refer to page89.<

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License plate lamps
5-watt bulb, W5W
1.Push a screwdriver from the left under the
lamp and pry out the lamp toward the right.
2.Turn the bulb holder to the left by 905 and
remove.
3.Remove and replace the bulb.
Changing wheels
Your BMW is equipped with run-flat tires as a
standard feature. An immediate wheel change
in the event of a flat tire is therefore no longer
required.
To continue driving with a damaged tire:
>With Flat Tire Monitor, refer to Indication of
a flat tire, page92
>With Tire Pressure Monitor, refer to Mes-
sage with low tire inflation pressure,
page93
You will recognize run-flat tires by a circular
symbol containing the letters RSC on the side
of the tire, refer to Run-flat tires on page218.
If you have new tires mounted or switch from
summer to winter tires, or vice versa, use run-
flat tires because no spare tire is provided in
case of a flat. Your BMW center will be glad to
advise you.
Also refer to New wheels and tires, page218.
The suitable tools for changing tires are
available as accessories from your BMW
center.<
Car jacking points
The jacking points for the car jack are located in
the positions shown.
Vehicle battery
Battery care
The battery is 100 % maintenance-free, i.e., 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 battery
Only charge the battery in the vehicle via the
terminals in the engine compartment with the
engine switched off. Connections, refer to
Jump starting on page236.
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
restrain the battery to prevent it from tipping
over during transport.<
Power failure
Following a temporary power failure, e.g. due to
a discharged battery, the use of some equip-
ment will be restricted, requiring its reinitializa-
tion. In the same way, individual settings are lost
and must be updated again:

Everything from A to Z
250
Everything from A to 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
System88
– indicator lamp90
ACC, refer to Active cruise
control68
Accepted calls194
Accessories6
Accident, refer to Emergency
request235
Activated-charcoal filter for
automatic climate
control114
"Activation time" for parked
car ventilation115
Active cruise control68
– indicator lamp72
– radar sensor72
– selecting distance70
– warning lamps72
Active front head restraints52
Active steering95
– warning lamp95
Adapter for spare key30
Adaptive brake assistant89
Adaptive brake lamps, refer to
Brake force display95
Adaptive Head Light106
"Add digits" in mobile phone
mode194
Additives
– coolant223
– engine oil, refer to Approved
engine oils223
"Address book" in
navigation144Address for navigation
– deleting145
– entering136,139
– selecting145
– storing144
– storing current position144
"Add to address book"144
"Add to destination
list"139,141
Adjusting interior
temperature111
Adjusting the tone during
audio operation, refer to
Tone control161
Adjusting thigh support50
"After door opened"52
"After unlocking"52
Airbags95
– deactivating, refer to
Exception for front
passenger seat58
– indicator/warning lamp97
– indicator lamp for front
passenger airbags97
– sitting safely49
Air distribution
– automatic111
– manual112
Airing, refer to Ventilation114
Air outlets, refer to
Ventilation114
Air recirculation, refer to AUC
Automatic recirculated-air
control113
"Air recirculation on / off"57
Air supply, automatic climate
control110
Air volume112
AKI, refer to Fuel
specifications213Alarm system37
– avoiding unintentional
alarms38
– interior motion sensor38
– switching off alarm37
– switching off tilt alarm
sensor and interior motion
sensor38
– tilt alarm sensor38
"All channels"172
"All doors"32
Alloy wheels229
All-season tires, refer to
Winter tires219
"All stations", requesting in
radio mode164
Alterations, technical, refer to
For your own safety6
Altering stretch of road152
"AM" waveband160,164
Antenna for mobile phone186
Antifreeze
– coolant223
– washer fluid67
Antilock Brake System
ABS88
Anti-theft alarm system, refer
to Alarm system37
Anti-theft system, refer to
Central locking system31
Approved axle loads, refer to
Weights245
Approved engine oils223
Approved gross vehicle
weight, refer to Weights245
Armrest, refer to Center
armrest119
Around the center console14
Around the steering wheel10
Arrival time
– refer to Computer78
– refer to Starting destination
guidance148

Everything from A to Z
254 Convenient operation
– convertible top33,34
– glass sunroof32,34
– windows32,34
Convertible
– convertible program for
automatic climate
control111
– opening and closing
windows41
– rollover protection
system97
– top44
– wind deflector47
Convertible top
– closing manually45
– convenient operation34
– emergency closing45
– opening and closing44
Convertible top care228
Coolant223
– checking level224
– temperature76
Cooling, maximum113
Cooling fluid, refer to
Coolant223
Cooling function, automatic
climate control113
Cooling system, refer to
Coolant223
Copyright2
Cornering Brake Control
CBC88
Country of destination for
navigation137
Courtesy lamps, refer to
Interior lamps108
Cradle for telephone or mobile
phone119
Cruise control67
– active cruise control68
Cruising range77
Cup holders15,120
Curb weight, refer to
Weights245
"Current position"155Current position
– displaying155
– entering144
– storing144
"Curve mode" with BMW
Night Vision102
"Customer
Relations"196,204
Cylinders, refer to Engine
data
242
D
Dashboard, refer to
Cockpit10
Dashboard lighting, refer to
Instrument lighting108
Data, technical242
– dimensions243
– engine242
– weights245
"Date"85
Date76
– date format85
– setting85
"Date format"85
"Daytime running
lamps"105,108
Daytime running lamps105
– replacing bulbs232
"Deactivated"52
Defect
– door lock34
– glass sunroof43
– luggage compartment lid36
– tires, refer to Flat Tire
Monitor90
– tires, refer to Tire Pressure
Monitor92
Defrosting windows112
Defrosting windows and
removing condensation112
Defrosting windshield, refer to
Defrosting windows112
Defrost position, refer to
Defrosting windows112
"Delete address book" in
navigation146"Delete all numbers" in mobile
phone mode195
"Delete data" in
navigation146
"Delete" in mobile phone
mode195
Destination address
– deleting145
– entering136,139
Destination for navigation
– destination list143
– entering via voice139
– entry136
– selecting from address
book145
– selecting using
information142
– storing144
Destination guidance148
– bypassing route
sections152
– canceling voice
instructions57
– changing specified
route
146
– displaying route149
– distance and arrival148
– interrupting148
– starting148
– terminating/continuing148
– voice instructions151
– volume of voice
instructions152
Destination list for
navigation143
Destinations recently driven
to143
"Details" in audio
mode176,182
"Details" in radio mode172
"Detour" in navigation155
"Dial" in mobile phone
mode193
"Dial number"193
"Diamond button"57
Digital clock76
Digital radio, refer to High
Definition Radio168

Everything from A to Z
256 Engine
– breaking-in126
– data242
– overheated, refer to Coolant
temperature76
– speed242
– starting61
– starting, comfort access38
– switching off61
– switching off when equipped
with Automatic
transmission, with comfort
access40
Engine compartment221
Engine coolant223
Engine oil
– adding223
– additives, refer to Approved
engine oils223
– approved oils223
– electronic oil level check222
– interval between changes,
refer to Service
requirements79
– oil change223
– oil grades, refer to Approved
engine oils223
– recommended oils223
– temperature77
– temperature gauge77
"Engine oil level"222
Engine output, refer to Engine
data242
Engine speed, refer to Engine
data242
Engine starting, refer to
Starting engine61
"Enter address"136,144
Entering destination via town/
city name137
Entering intersection,
navigation138
Entering rear53
Entering the
address136,139
Entering town/city for
navigation137
Entering zip code for
navigation138"Entertainment"160
Entertainment sound output
on/off161
Entry map for destination141
Equalizer, refer to Tone
control163
"Equalizer", tone control163
"ESN"171
ESP Electronic Stability
Program, refer to DSC
Dynamic Stability
Control89
Event Data Recorders226
Exhaust system, refer to Hot
exhaust system127
Exterior mirrors55
– adjusting55
– automatic dimming
feature56
– automatic heating55
– folding in and out55
– tilting down passenger-side
exterior mirror56
External audio device119
Eye for tow-starting and
towing, refer to Tow
fitting237
F
Fader, refer to Tone
control162
"Fader", tone control162
Failure messages, refer to
Check Control81
False alarm
– refer to Avoiding
unintentional alarms38
– refer to Switching off
alarm37
Fastening safety belts, refer to
Safety belts54
Fastest route for
navigation146
"Fast route" in navigation147
Filler neck for washer fluid67
Filter, refer to Microfilter/
activated-charcoal filter114First aid, refer to First-aid
kit236
First-aid kit236
Flashing
– during locking/unlocking,
refer to Setting confirmation
signals33
– triple turn signal
activation66
Flat tire
– Flat Tire Monitor90
– run-flat tires92,93,218
– Tire Pressure Monitor92
– TPM Tire Pressure
Monitor92
– warning lamp92,93
Flat tire, refer to Run-flat
tires218
Flat Tire Monitor90
– false alarms91
– initializing system91
– snow chains219
– system limits91
– warning lamp92
Fluid reservoir, refer to Filler
neck for washer fluid67
FM, waveband164
"FM" waveband160,164
Fog lamps108
– indicator lamp13,108
Folding into raised position
convertible top
compartment floor,
Convertible37
Footbrake, refer to Braking
safely128
Footwell lamps, refer to
Interior lamps108
Forward, fast
– CD changer178
– CD player178
For your own safety
6
Freeway, refer to Route
criteria146
Front airbags95
Front passenger airbags
– deactivating96
"FTM"91