2014 BMW 650I CONVERTIBLE tire size

Declaration according to NHTSA/
FMVSS 138 Tire Pressure Monitoring
System
Each tire, including the spare (if provided)
should be checked monthly when cold and in‐
flated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If your
vehicle has tires of a different size than the size
indicated on the vehicle placard or tire inflation
pressure label, you should determine the
proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pres‐
sure telltale when one or more of your tires is
significantly under-inflated. Accordingly, when
the low tire pressure telltale illuminates, you
should stop and check your tires as soon as
possible, and inflate them to the proper pres‐
sure. Driving on a significantly under-inflated
tire causes the tire to overheat and can lead to
tire failure. Under-inflation also reduces fuel ef‐
ficiency and tire tread life, and may affect the
vehicle's handling and stopping ability. Please
note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver's
responsibility to maintain correct tire pressure,
even if under-inflation has not reached the
level to trigger illumination of the TPMS low
tire pressure telltale. Your vehicle has also
been equipped with a TPMS malfunction indi‐
cator to indicate when the system is not oper‐
ating properly. The TPMS malfunction indica‐
tor is combined with the low tire pressure
telltale. When the system detects a malfunc‐
tion, the telltale will flash for approximately one
minute and then remain continuously illumi‐
nated. This sequence will continue upon sub‐
sequent vehicle start-ups as long as the mal‐
function exists. When the malfunction indicator
is illuminated, the system may not be able to
detect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of
reasons, including the installation of replace‐
ment or alternate tires or wheels on the vehiclethat prevent the TPMS from functioning prop‐
erly. Always check the TPMS malfunction tell‐
tale after replacing one or more tires or wheels
on your vehicle to ensure that the replacement
or alternate tires and wheels allow the TPMS
to continue to function properly.
FTM Flat Tire Monitor
The concept The system does not measure the actual infla‐
tion pressure in the tires.
It detects a pressure loss in a tire by comparing
the rotational speeds of the individual wheels
while moving.
In the event of a pressure loss, the diameter
and therefore the rotational speed of the corre‐
sponding wheel change. This is detected and
reported as a flat tire.
Functional requirements
The system must have been initialized when
the tire inflation pressure was correct; other‐
wise, reliable signaling of a flat tire is not en‐
sured. Initialize the system after each correc‐ tion of the tire inflation pressure and afterevery tire or wheel change.
Status display The current status of the Flat Tire Monitor canbe displayed on the Control Display, e.g.,
whether or not the FTM is active.1."Vehicle Info"2."Vehicle status"3. "Flat Tire Monitor (FTM)"
The status is displayed.
Initialization
The initialization process adopts the set infla‐
tion tire pressures as reference values for the
detection of a flat tire. Initialization is started by
confirming the inflation pressures.
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Saving fuelVehicle equipmentAll standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐
ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
General information Your vehicle contains advanced technology for
the reduction of fuel consumption and emis‐
sions.
Fuel consumption depends on a number of dif‐
ferent factors.
The implementation of certain measures, driv‐
ing style and regular maintenance can have an
influence on fuel consumption and on the envi‐
ronmental impact.
Remove unnecessary cargoAdditional weight increases fuel consumption.
Remove attached parts
following use
Attached parts on the vehicle impair the aero‐
dynamics and increase the fuel consumption.
Closing the windows
Open windows increase air resistance and
therefore lead to greater fuel consumption.Tires
General information
Tires can affect fuel consumption values in
various ways, for instance fuel consumption
can be influenced by the size of the tires.
Check the tire inflation pressure
regularly
Check and, if necessary, correct the tire infla‐
tion pressure at least twice a month and before
starting on a long trip.
Low tire inflation pressure increases rolling re‐
sistance and thus raises fuel consumption and
tire wear.
Drive away without delay
Do not wait for the engine to warm-up while
the vehicle remains stationary. Start driving
right away, but at moderate engine speeds.
This is the fastest way for the cold engine to
reach its operating temperature.
Look well ahead when
driving
Avoid unnecessary acceleration and braking.
By maintaining a suitable distance to the vehi‐
cle driving ahead of you.
Driving smoothly and looking ahead reduces
fuel consumption.
Use coasting conditions When approaching a red light, take your foot
off the accelerator and let the vehicle coast to
a halt.Seite 179Saving fuelDriving tips179
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Wheels and tiresVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐
ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
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 pres‐
sure, and correct it as needed: at least twice a
month and before a long trip. If you fail to ob‐
serve this precaution, you may be driving on
tires with incorrect 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:
▷Reinitialize the Flat Tire Monitor.▷Reinitialize the Tire Pressure Monitor.Pressure specifications The tire inflation pressure table, refer to
page 192, 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.▷Maximum permitted 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
values in the tire inflation pressure table, refer
to page 192, 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
640iTire sizePressure specifica‐
tions in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/40 R 19 98 V M
+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC2.3 / 332.6 / 38Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.3 / 33
--
2.4 / 35Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.4 / 35
--
2.6 / 38Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y
XL RSC2.6 / 38
--
2.9 /42Compact wheel:
T 135/90 R 17 104
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60640i xDriveTire sizePressure specifica‐
tions in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/40 R 19 98 V M
+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC2.4 / 352.7 / 39Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.4 / 35
--
2.4 / 35Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.4 / 35
--
2.6 / 38Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y XL
RSC2.8 / 41
--
3.0 / 44Compact wheel:
T 135/90 R 17 104
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60Seite 192MobilityWheels and tires192
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650iTire sizePressure specifica‐
tions in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/40 R 19 98 V M
+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC2.3 / 332.6 / 38Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.3 / 33
--
2.4 / 35Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.4 / 35
--
2.6 / 38Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y XL
RSC2.6 / 38
--
2.9 /42650i xDriveTire sizePressure specifica‐
tions in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/40 R 19 98 V M
+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC2.4 / 352.7 / 39Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.4 / 35
--
2.4 / 35Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.4 / 35
--
2.6 / 38Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y XL
RSC2.8 / 41
--
3.0 / 44
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
excess 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. Other‐
wise tire damage and accidents could occur.◀
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Tire inflation pressure values over
100 mph/160 km/h
640i
Without high-speed tuning featureTire sizePressure specifica‐
tions in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/40 R 19 98 V M
+S XL A/S RSC
245/40 R 18 100 V
M+S XL RSC2.3 / 332.8 / 41Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.3 / 33
--
2.4 / 35Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.4 / 35
--
2.6 / 38Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y
XL RSC2.6 / 38
--
2.9 /42Compact wheel:
T 135/90 R 17 104
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
With high-speed tuning feature
Tire sizePressure specifications
in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL RSC2.7 / 393.2 / 46Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.5 / 36
--
2.7 / 39Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.6 / 38
--
3.0 / 44Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y
XL RSC2.8 / 41
--
3.3 / 48Compact wheel:
T 135/90 R 17 104
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
640i xDrive Without high-speed tuning feature
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Tire sizePressure specifica‐
tions in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/40 R 19 98 V M
+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC2.7 / 393.0 / 44Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.4 / 35
--
2.4 / 35Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.4 / 35
--
2.6 / 38Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y
XL RSC2.8 / 41
--
3.0 / 44Compact wheel:
T 135/90 R 17 104
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
With high-speed tuning feature
Tire sizePressure specifica‐
tions in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC2.8 / 413.2 / 46245/40 R 19 98 V M
+S XL A/S RSC3.0 / 443.4 / 49Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.4 / 35
--
2.6 / 38Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.6 / 38
--
2.8 / 41Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y
XL RSC3.0 / 44
--
3.2 / 46Compact wheel:
T 135/90 R 17 104
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
650i
Without high-speed tuning feature
Seite 195Wheels and tiresMobility195
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Tire sizePressure specifica‐
tions in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC2.3 / 332.8 / 41245/40 R 19 98 V M
+S XL A/S RSC2.5 / 363.0 / 44Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.3 / 33
--
2.4 / 35Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.4 / 35
--
2.6 / 38Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y XL
RSC2.6 / 38
--
2.9 /42
With high-speed tuning feature
Tire sizePressure specifica‐
tions in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL RSC2.7 / 393.2 / 46Tire sizePressure specifica‐
tions in bar/PSIFront: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.5 / 36
--
2.7 / 39Front: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.6 / 38
--
3.0 / 44Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y XL
RSC2.9 /42
--
3.3 / 48
650i xDrive Without high-speed tuning feature
Tire sizePressure specifica‐
tions in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/40 R 19 98 V M
+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC2.7 / 393.0 / 44Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.4 / 35
--
2.4 / 35Seite 196MobilityWheels and tires196
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