2012 BMW 640I CONVERTIBLE inflation pressure

Wheels and tires
Tire inflation pressure
Safety information
The tire characteristics and tire inflation pres‐
sure influence the following:
▷
The service life of the tires.
▷ Road safety.
▷ Driving comfort.
Checking the pressure
Only check the tire inflation pressure when the
tires are cold. This means after driving no more
than 1.25 miles/2 km or when the vehicle has
been
parked for at least 2 hours. When the tires
are warm, the tire inflation pressure is higher.
Check the tire inflation pressure regularly
Regularly check the tire inflation pressure
and correct it as needed: at least twice a month
and before a long trip. If you fail to observe this
precaution, you may be driving on tires with in‐
correct tire pressures, a condition that may not
only compromise your vehicle's driving stability,
but also lead to tire damage and the risk of an
accident.◀
After correcting the tire inflation pressure, rein‐
itialize the Flat Tire Monitor.
After correcting the tire inflation pressure, rein‐
itialize the Tire Pressure Monitor.
Pressure specifications
The tire inflation pressure table, refer to
page 230, contains all pressure specifications
for the specified tire sizes at the ambient tem‐
perature. Pressure specifications apply to ap‐
proved tire sizes and recommended tire brands.
This information can be obtained from your
service center.
To identify the correct tire inflation pressure,
please note the following:
▷ Tire sizes of your vehicle.
▷ Vehicle load. ▷
Maximum allowable driving speed.
Tire inflation pressures up to 100 mph/
160 km/h
For speeds of up to 100 mph/160 km/h and for
optimum

driving comfort, note the pressure val‐
ues in the tire inflation pressure table, refer to
page 230, and adjust as necessary. These pressure values can also be found on the
tire inflation pressure label on the driver's door
pillar.
Maximum permissible speed
Do not exceed 100 mph/160 km/h; other‐
wise, tire damage and accidents may result.

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Tire inflation pressure values up to
100 mph/160 km/h
650i
Tire size
Pressure specifica‐
tions in bar/PSI
Specifications in psi/
kilopascal with cold
tires 245/45 R 18 100 V M
+S XL A/S
245/40 R 19 98 V M
+S XL A/S
245/45 R 18 96 Y
245/45
R 18 100 V M
+S XL 2.3 / 33 2.6 / 38
F: 245/45 R 18 96 Y
R: 275/40 R 18 99 Y 2.3 / 33
--
2.4 / 35
F: 245/40 R 19 94 Y
R: 275/35 R 19 96 Y 2.4 / 35
--
2.6 / 38
F: 245/35 R 20 95
Y XL
R: 275/30 R 20 97
Y XL 2.6 / 38
-
-
2.9 /42 Tire inflation pressures at max. speeds
above 100 mph/160 km/h
Speeds above 100 mph/160 km/h
In

order to drive at maximum speeds in ex‐
cess of 100 mph/160 km/h, please observe, and,
if necessary, adjust tire pressures for speeds
exceeding 100 mph/160 km/h from the relevant
table on the following pages. Otherwise tire
damage and accidents could occur.◀
Tire inflation pressure values over
100 mph/160 km/h
650i
Without high-speed tuning feature Tire size
Pressure specifications
in bar/PSI
Specifications in
bar/PSI with cold
tires 245/45 R 18 100 V M
+S XL A/S
245/45 R 18 96 Y
245/45

R 18 100 V M
+S XL 2.3 / 33 2.8 / 41
245/40 R 19 98 V M
+S XL A/S 2,5 / 363 3.0 / 44
F: 245/45 R 18 96 Y
R: 275/40 R 18 99 Y 2.3 / 33
--
2.4 / 35
F: 245/40 R 19 94 Y
R: 275/35 R 19 96 Y 2.4 / 35
--
2.6 / 38
F: 245/35 R 20 95
Y XL
R: 275/30 R 20 97
Y XL 2.6 / 38
-
-
2.9 /42 With high-speed tuning feature
Tire size
Pressure specifications
in bar/PSI
Specifications in
bar/PSI with cold
tires 245/45 R 18 96 Y 2,5 / 363 3.0 / 44
245/45 R 18 100
V M+S XL
2.7 / 39 3.2 / 46
F: 245/45 R 18 96 Y
R:
275/40 R 18 99 Y 2,5 / 363
--
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Wheels and tires

Maximum speed of winter tires
If the maximum speed of the vehicle is higher
than the permissible speed for the winter tires,
then display a corresponding sign in the field of
vision.
You can obtain this sign from the tire spe‐
cialist or from your service center.
Maximum speed for winter tires
Do not exceed the maximum speed for the
winter tires; otherwise, tire damage and acci‐
dents can occur.◀
Run-flat tires
For your own safety, only use run-flat tires. No
spare tire is available in the case of a flat tire. Your
service center will be glad to advise you.
Rotating wheels between axles
The manufacturer of your vehicle advises
against swapping wheels between the front and
rear axles.
This can impair the handling characteristics.
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 side wall of the tire.
Run-flat tires*
Label RSC label on the tire sidewall. The wheels are composed of special rims and
tires that are self-supporting, to a limited de‐
gree.
The
support of the sidewall allows the tire to re‐
main drivable to a restricted degree in the event
of a pressure loss.
Continued driving with a damaged tire., refer to
page 93
Changing run-flat tires
For your own safety, only use run-flat tires. No
spare tire is available in the case of a flat tire. Your
service center will be glad to advise you.
Snow chains
Fine-link snow chains
Only certain types of fine-link snow chains have
been tested by the manufacturer of your vehicle,
classified as road-safe and recommended.
Consult your service center for more informa‐
tion.
Use
Use only in pairs on the rear wheels, equipped
with the tires of the following size:
▷ 225/55 R 17.
▷ 245/45 R 18.
Follow the chain manufacturer's instructions.
Make
sure that the snow chains are always suf‐
ficiently tight. Retighten as needed according to
the chain manufacturer's instructions.
Do not initialize the Flat Tire Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
Do not initialize the Tire Pressure Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
When driving with snow chains, briefly activate
Dynamic Traction Control if necessary.
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Wheels and tires

External temperature warn‐
ing 75
Eyes for securing cargo 141
F
Fader 164
Failure message, refer to Check Control 82
False alarm, refer to Uninten‐ tional alarm 43
Fan, refer to Air volume 124
Fault displays, refer to Check Control 82
Filler neck for engine oil 238
Fine wood, care 256
First aid kit 249
Fitting
for towing, refer to Tow
fitting 252
Flat Tire Monitor FTM 95
Flat tire, Tire Pressure Monitor TPM 91
Flat tire, warning lamp 93, 95
Flat tire, wheel change 246
Flooding 139
Floor carpet, care 256
Floor mats, care 256
FM/AM station 166
Fold-out position, windshield wipers 71
Foot brake 139
Front airbags 88
Front fog lamps 87
Front lamps 244
Front passenger airbags, au‐ tomatic deactivation 89
Front passenger airbags, indi‐ cator lamp 90
Front seats 53
FTM Flat Tire Monitor 95
Fuel cap 226
Fuel consumption, current 75
Fuel consumption, refer to Average fuel consump‐
tion 77
Fuel filler flap 226
Fuel gauge 74
Fuel quality 228 Fuel, tank capacity
262
Fuse 247
G
Garage door opener, refer to Integrated universal remote
control 128
Gas station recommenda‐ tion 155
Gear
change, automatic trans‐
mission 72
Gear shift indicator 79
General driving notes 138
Glove compartment 132
GPS navigation, refer to Navi‐ gation system 146
Gross vehicle weight, ap‐ proved 261
Gross weight, permissible for trailer towing 261
H
Hand brake, refer to Parking brake 67
Hand-held transmitter, alter‐ nating code 129
Hazard warning flashers 248
HD Radio 167
Headlamp control, auto‐ matic 85
Headlamp courtesy delay fea‐ ture 84
Headlamp courtesy delay fea‐ ture via remote control 37
Headlamp flasher 69
Headlamp glass 244
Headlamps 244
Headlamps, care 255
Headlamp washer system 69
Head restraints 53
Head restraints, front 57
Head-up Display 121
Head-up Display, care 257
Heavy cargo, stowing 141
Height, seats 53
Height, vehicle 260 High-beam Assistant
86
High beams 69
High beams/low beams, refer to High-beam Assistant 86
Hills 140
Hill start assistant, refer to Drive-off assistant 101
Hints 6
Holder for beverages 133
Homepage 6
Hood 236
Horn 12
Hotel function 39
Hot exhaust system 138
House number, entering for navigation 147
Hydroplaning 139
I
Ice warning, refer to External temperature warning 75
Icy roads, refer to External temperature warning 75
Identification marks, tires 231
Identification number, refer to Engine compartment 236
iDrive 19
Ignition key, refer to Remote control 32
Ignition off 65
Ignition on 65
Indication of a flat tire 93, 95
Indicator and warning mes‐ sages 14
Indicator lamps 14
Individual air distribution 123
Individual settings, refer to Personal Profile 33
Inflation pressure, tires 229
Inflation pressure warning FTM, tires 95
Info display, refer to Com‐ puter 76
Information on the navigation data 160
Initialization, Integral Active Steering 103
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Reference Mobility Communication Entertainment Navigation Driving tips Controls At a glance

Start function during malfunc‐
tion 33
Starting aid 249
Starting the engine 66
State/province, selecting for navigation 146
Stations, stored 172
Station, storing 166
Status display, tires 92
Status information, iDrive 22
Status of Owner's Manual 6
Steering, Integral Active Steering 102
Steering wheel, adjusting 60
Steering wheel heating 61
Steering wheel memory 58
Steptronic, automatic trans‐ mission 72
Stopping the engine 66
Storage compartments 132
Storage compartments, loca‐ tions 132
Storage, tires 234
Storing the vehicle 257
Street, entering for naviga‐ tion 147
Summer tires, tread 232
Supplementary text mes‐ sage 82
Surround View 110
Suspension settings 103
Switch for Dynamic Driving Control 103
Switch-on times, parked-car ventilation 126
Switch, refer to Cockpit 12
Symbols 6
T
Tachometer 75
Tail and brake lamps 245
Tailgate 40
Tailgate
via remote control 37
Tail lamps 245
Tail lamps, bulb replace‐ ment 245
Tasks 213 Technical changes, refer to
Safety 7
Technical data 260
TeleService 218
Temperature, automatic cli‐ mate control 124
Temperature display, external temperature 75
Temperature, engine oil 75
Terminal, starting aid 250
Text messages 210
Text message, supplemen‐ tary 82
Theft alarm system, refer to Alarm system 42
Theft protection, lug bolts 246
Theft protection, refer to Cen‐ tral locking system 35
Thermal
camera, refer to Night
Vision 118
Thigh support 54
Tilt alarm sensor 43
Tilt, seats 53
Time of arrival 78
Tire damage 232
Tire identification marks 231
Tire inflation pressure 229
Tire inflation pressure monitor, refer to FTM 95
Tire Pressure Monitor TPM 91
Tires, changing 233
Tires, everything on wheels and tires 229
Tires, run-flat tires 234
Tire tread 232
Toll roads, route 154
Tone 164
Tool kit 243
Tools 243
Top View 112
Total vehicle weight 261
Tow fitting 252
Towing 251
Town/city, navigation 146
Tow-starting 251
Tow truck 251 TPM Tire Pressure Moni‐
tor 91
Traction control 101
TRACTION
program, Dynamic
Driving Control 104
Traffic bulletins, naviga‐ tion 157
Traffic situation/gray card 158
Transmission, automatic 72
Transmission, manual 71
Transporting children safely 62
Tread, tires 232
Treble, tone 164
Trip computer 78
Triple turn signal activa‐ tion 69
Trip odometer 76
Truck for tow-starting/tow‐ ing 251
Trunk, cargo area partition 47
Trunk lid 40
Trunk lid, emergency unlock‐ ing 41
Trunk lid, hotel function 39
Trunk lid via remote con‐ trol 37
Turning circle 261
Turning circle lines, backup camera 111
Turn signals, operation 69
Turn signals, rear, bulb re‐ placement 245
U
Unintentional alarm 43
Units of measure 80
Universal remote control 128
Unlock button, automatic transmission 72
Unlocking/locking from in‐ side 39
Unlocking/locking via door lock 38
Unlocking/locking with remote control 36
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Reference Mobility Communication Entertainment Navigation Driving tips Controls At a glance