2012 BMW 7 SERIES tire size

Continued driving with a flat tire
If continuing to drive with a damaged tire:
1.
Avoid sudden braking and steering maneu‐
vers.
2. Do not exceed a speed of 50 mph/80 km/h.
3. Check the air pressure in all four tires at the
next opportunity.
If the tire inflation pressure in all four tires is
correct, the Tire Pressure Monitor may not
have been initialized. In this case, initialize
the system.
Possible driving distance with complete loss of
tire inflation pressure:
The possible driving distance after a loss of tire
inflation pressure depends on the cargo load
and the driving style and conditions.
For a vehicle containing an average load, the
possible driving distance is approx. 50 miles/
80 km.
When the vehicle is driven with a damaged tire,
its handling characteristics change, e.g., re‐
duced lane stability during braking, a longer
braking distance, and altered self-steering
properties. Adjust your driving style accord‐
ingly. Avoid abrupt steering maneuvers or driv‐
ing over obstacles, e.g., curbs, potholes, etc.
Because
the possible driving distance depends
on how the vehicle is used during the trip, the
actual distance may be smaller or greater de‐
pending on the driving speed, road conditions,
external temperature, cargo load, etc.
Continued driving with a flat tire
Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
A loss of tire inflation pressure results in a
change in the handling characteristics, e.g., re‐
duced lane stability during braking, a longer
braking distance and altered self-steering prop‐
erties.◀
Final tire failure
Vibrations or loud noises while driving can
indicate the final failure of the tire. Reduce speed
and stop; otherwise, pieces of the tire could come loose and cause an accident. Do not con‐
tinue

driving, and contact your service center.◀
Message when the system was not
reset
A Check Control message is displayed.
The system detected a wheel change but was
not reset.
Warnings regarding the current tire inflation
pressure are not reliable.
Check the tire inflation pressure and reset the
system.
Malfunction The yellow warning lamp flashes and
then lights up continuously. A Check
Control message is displayed. No flat
tire can be detected.
Display in the following situations:
▷ A wheel without TPM electronics is fitted:
have

the service center check it if necessary.
▷ Malfunction: have the system checked by
your service center.
▷ TPM could not be fully reset. Reset the sys‐
tem again.
▷ Disturbance by systems or devices with the
same

radio frequency: after leaving the area
of the disturbance, the system automatically
becomes active again.
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 la‐
bel, you should determine the proper tire infla‐
tion pressure for those tires.) As an added safety
feature, your vehicle has been equipped with a
tire pressure monitoring system (TPMS) that il‐
luminates a low tire pressure telltale when one Seite 93
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Reference Mobility Communication Entertainment Navigation Driving tips
Controls At a glance

Warning of people in danger
If the system detects a person in the defined
area
in front of the vehicle and if there is the dan‐
ger of a collision with this person, a warning
symbol appears in the Control Display and
Head-up Display*.
Although both the shape and the heat radiation
are analyzed, false warnings cannot be ruled out.
Warning area in front of the vehicle The warning area in front of the vehicle is divided
into two areas.
▷
Central area 1 directly in front of the vehicle.
▷ Expanded area 2 to the right and left.
The entire area moves along with the vehicle in
the direction of the steering angle and changes
with

the vehicle speed. As the vehicle speed in‐
creases, the area becomes longer and wider, for
example.
Symbols
This symbol is displayed when a person
is detected in the central area, arrow 1,
immediately in front of the vehicle.
This symbol is displayed when a person
detected in the extended area, arrow 2, is moving from the right or left to the central area.
Display in the Head-up Display

*
The warning is simultaneously dis‐
played in the Head-up Display and in the
Control Display. The displayed symbol
can vary with the people detected. For people
located in the central area, the distance to the
person is indicated by the size of the symbol.
System limits
Basic limits
System operation is limited in situations such as
the following:
▷ On steep hills, in steep depressions or in
tight curves.
▷ When the camera is dirty or the protective
glass is damaged.
▷ In heavy fog, rain or snowfall.
▷ At very high external temperatures.
Limits of pedestrian detection
Animals are not detected by the pedestrian de‐
tection

function, even if they are clearly visible in
the image.
Limited pedestrian detection:
▷ When people are fully or partially covered,
especially when their heads are covered.
▷ When people are not in an upright position,
e.g., when lying down.
▷ Cyclists on unconventional bicycles (e.g.,
recumbent bicycles).
▷ After physical damage to the system, e.g.,
after an accident. Seite 122
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Driving comfort

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 Tire Pressure Monitor.
Pressure specifications
The tire inflation pressure table, refer to
page 244, 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 244, 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.

◀
Tire inflation pressure values up to
100 mph/160 km/h
740i, 740Li, 750i, 750Li Tire size
Pressure specifica‐
tions in bar/PSI
Specifications in bar/
PSI with cold tires 245/50 R 18 100 V M
+S A/S
245/50 R 18 100 H M
+S
2.2 / 32 2.4 / 35 Seite 244
244 Online Edition for Part no. 01 40 2 606 497 - 03 11 490
Wheels and tires

Tire size
Pressure specifica‐
tions in bar/PSI
245/45 R 19 102 V M
+S XL A/S
245/45 R 19 102 V M
+S XL 2.4 / 35 2.6 / 38
F.: 245/45 R 19 98 Y
R.: 275/40 R 19 101 Y 2.2 / 32
--
2.3 / 33
F.: 245/40 R 20 99 Y
XL
R.:
275/35 R 20 102 Y XL 2.4 / 35
-
-
2.6 / 38
F.:
245/35 R 21 96 Y XL
R.:
275/30 R 21 98 Y XL 2.6 / 38
-
-
3.0 / 44760Li
Tire size
Pressure specifica‐
tions in bar/PSI
Specifications in ar/
PSI with cold tires 245/50 R 18 100 V M
+S A/S
245/50 R 18 100 H M
+S
2.2 / 32 2.4 / 35
245/45 R 19 102 V M
+S XL A/S
245/45 R 19 102 V M
+S XL 2.4 / 35 2.6 / 38
F.: 245/45 R 19 98 Y
R.: 275/40 R 19 101 Y 2.3 / 33
--
2.3 / 33 Tire size
Pressure specifica‐
tions in bar/PSI
F.: 245/40 R 20 99 Y
XL
R.:
275/35 R 20 102 Y XL 2.5 / 36
-
-
2.5 / 36
F.:
245/35 R 21 96 Y XL
R.:
275/30 R 21 98 Y XL 2.8/41
-
-
2.9 /42 750i xDrive, 750Li xDrive
Tire size
Pressure specifica‐
tions in bar/PSI
Specifications in bar/
PSI with cold tires 245/50 R 18 100 V M
+S A/S
245/50 R 18 100 H M
+S
2.2 / 32 2.4 / 35
245/45 R 19 102 V M
+S XL A/S
245/45 R 19 102 V M
+S XL 2.4 / 35 2.6 / 38
F.: 245/45 R 19 98 Y
R.: 275/40 R 19 101 Y 2.2 / 32
--
2.3 / 33
F.: 245/40 R 20 99 Y
XL
R.:
275/35 R 20 102 Y XL 2.5 / 36
-
-
2.6 / 38
F.:
245/35 R 21 96 Y XL
R.:
275/30 R 21 98 Y XL 2.8 / 41
-
-
3.0 / 44 Seite 245
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Reference
Mobility Communication Entertainment Navigation Driving tips Controls At a glance

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
740i, 740Li, 750i, 750Li
Without high-speed tuning feature Tire size
Pressure specifica‐
tions in bar/PSI
Specifications in bar/
PSI with cold tires 245/50 R 18 100 V M
+S A/S
245/50 R 18 100 H M
+S
2.2 / 32 2.6 / 38
245/45 R 19 102 V M
+S XL A/S
245/45 R 19 102 V M
+S XL 2.4 / 35 2.8 / 41
F.: 245/45 R 19 98 Y
R.: 275/40 R 19 101 Y 2.2 / 32
--
2.3 / 33
F.: 245/40 R 20 99 Y XL
R.:
275/35 R 20 102 Y XL 2.4 / 35
-
-
2.6 / 38
F.: 245/35 R 21 96 Y XL
R.:
275/30 R 21 98 Y XL 2.6 / 38
-
-
3.0 / 44 With high-speed tuning feature Tire size
Pressure specifica‐
tions in bar/PSI
Specifications in bar/
PSI with cold tires 245/50 R 18 100 H M
+S
2.5 / 36 2.8 / 41
245/45 R 19 102 V M
+S XL 2.7 / 39 3.2 / 46
F.: 245/45 R 19 98 Y
R.: 275/40 R 19 101 Y 2.5 / 36
--
2.6 / 38
F.: 245/40 R 20 99 Y
XL
R.:
275/35 R 20 102 Y XL 2.7 / 39
-
-
2.9 /42
F.:
245/35 R 21 96 Y XL
R.:
275/30 R 21 98 Y XL 2.9 /42
-
-
3.3 / 48 760i, 760Li
Without high-speed tuning feature
Tire size
Pressure specifica‐
tions in bar/PSI
Specifications in bar/
PSI with cold tires 245/50 R 18 100 V M
+S A/S
245/50 R 18 100 H M
+S
2.6 / 38 2.8 / 41
245/45 R 19 102 V M
+S XL A/S
245/45 R 19 102 V M
+S XL 2.8 / 41 3.1 / 45
F.: 245/45 R 19 98 Y
R.: 275/40 R 19 101 Y 2.5 / 36
--
2.5 / 36 Seite 246
246 Online Edition for Part no. 01 40 2 606 497 - 03 11 490
Wheels and tires

Tire size
Pressure specifica‐
tions in bar/PSI
F.: 245/40 R 20 99 Y XL
R.:
275/35 R 20 102 Y XL 2.7 / 39
-
-
2.7 / 39
F.: 245/35 R 21 96 Y XL
R.:
275/30 R 21 98 Y XL 3.0 / 44
-
-
3.1 / 45With high-speed tuning feature
Tire size
Pressure specifica‐
tions in bar/PSI
Specifications in psi/
kilopascal with cold
tires 245/50 R 18 100 V M
+S A/S
245/50 R 18 100 H M
+S
2.6 / 38 2.8 / 41
245/45 R 19 102 V M
+S XL A/S
245/45 R 19 102 V M
+S XL 2.8 / 41 3.1 / 45
F.: 245/45 R 19 98 Y
R.: 275/40 R 19 101 Y 2.6 / 38
--
2.6 / 38
F.: 245/40 R 20 99 Y
XL
R.:
275/35 R 20 102 Y XL 2.8 / 41
-
-
2.8 / 41
F.:
245/35 R 21 96 Y XL
R.:
275/30 R 21 98 Y XL 3.2 / 46
-
-
3.2 / 46750i xDrive, 750Li xDrive
Without high-speed tuning feature Tire size
Pressure specifica‐
tions in bar/PSI
Specifications in psi/
kilopascal with cold
tires 245/50 R 18 100 V M
+S A/S
245/50 R 18 100 H M
+S
2.4 / 35 2.6 / 38
245/45 R 19 102 V M
+S XL A/S
245/45 R 19 102 V M
+S XL 2.6 / 38 2.8 / 41
F.: 245/45 R 19 98 Y
R.: 275/40 R 19 101 Y 2.2 / 32
--
2.3 / 33
F.: 245/40 R 20 99 Y
XL
R.:
275/35 R 20 102 Y XL 2.5 / 36
-
-
2.6 / 38
F.:
245/35 R 21 96 Y XL
R.:
275/30 R 21 98 Y XL 2.8 / 41
-
-
3.0 / 44 With high-speed tuning feature
Tire size
Pressure specifica‐
tions in bar/PSI
Specifications in psi/
kilopascal with cold
tires 245/50 R 18 100 V M
+S A/S
245/50 R 18 100 H M
+S
2.6 / 38 2.9 /42 Seite 247
247Online Edition for Part no. 01 40 2 606 497 - 03 11 490
Reference
Mobility Communication Entertainment Navigation Driving tips Controls At a glance

Tire size
Pressure specifica‐
tions in bar/PSI
245/45 R 19 102 V M
+S XL A/S
245/45 R 19 102 V M
+S XL 2.8 / 41 3.2 / 46
F.: 245/45 R 19 98 Y
R.: 275/40 R 19 101 Y 2.4 / 35
--
2.5 / 36
F.: 245/40 R 20 99 Y
XL
R.:
275/35 R 20 102 Y XL 2.7 / 39
-
-
2.7 / 39
F.:
245/35 R 21 96 Y XL
R.:
275/30 R 21 98 Y XL 3.0 / 44
-
-
3.2 / 46 Tire identification marks
Tire size
255/50 R 19 103 Y
255: nominal width in mm
50: aspect ratio in %
R: radial tire code
19: rim diameter in inches
103: load rating, not for ZR tires
Y: speed rating, before the R on ZR tires
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
DOT code: DOT xxxx xxx 3510
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design 3510: tire age
Tires
with DOT codes meet the guidelines of the
U.S. Department of Transportation.
Tire age
DOT … 3510: the tire was manufactured in the
35th week in 2010.
Recommendation
Regardless of wear, replace tires at least every
6 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: Treadwear 200; Traction AA;
Temperature A
DOT Quality Grades
Treadwear
Traction AA A B C
Temperature A B C
All passenger car tires must conform to Federal
Safety Requirements in addition to these
grades.
Treadwear
The treadwear 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, 1 g, times as
well on the government 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 variations in driving habits, service practices
and differences in road characteristics and cli‐
mate.
Traction
The traction grades, from highest to lowest, are
AA, A, B, and C.
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Wheels and tires

In case of tire damage
If there are indications of tire damage, re‐
duce your speed immediately and have the
wheels
and tires checked right away; otherwise,
there is the increased risk of an accident.
Drive carefully to the next service center or tire
shop.
If necessary, have the vehicle towed.◀
Repair of tire damage
For safety reasons, the manufacturer of
your vehicle recommends that you do not have
damaged tires repaired; they should be re‐
placed. Otherwise, damage can occur as a re‐
sult.◀
Changing wheels and tires
Mounting
Information on mounting tires
Have mounting and balancing performed
only by a service center or tire specialist.
If this work is not carried out properly, there is
the danger of subsequent damage and related
safety hazards.◀
Wheel and tire combination
Information on the correct wheel-tire combina‐
tion and rim versions for your vehicle can be ob‐
tained from your service center.
Incorrect wheel and tire combinations impair the
function of a variety of systems such as ABS or
DSC.
To maintain good handling and vehicle re‐
sponse, use only tires with a single tread con‐
figuration from a single manufacturer.
Following tire damage, have the original wheel
and tire combination remounted on the vehicle
as soon as possible. Approved wheels and tires
The manufacturer of your vehicle recom‐
mends that you use only wheels and tires that
have been approved for your particular vehicle
model.
For example, despite having the same official
size
ratings, variations can lead to body contact
and with it, the risk of severe accidents.
The manufacturer of your vehicle cannot evalu‐
ate non-approved wheels and tires to determine
if they are suited for use, and therefore cannot
ensure the operating safety of the vehicle if they
are mounted.◀
Recommended tire brands For each tire size, the manufacturer of your ve‐
hicle recommends certain tire brands. These
can be identified by a star on the tire sidewall.
With proper use, these tires meet the highest
standards for safety and handling.
New tires
Due to technical factors associated with their
manufacture,

tires do not achieve their full trac‐
tion potential until after an initial breaking-in pe‐
riod.
Drive conservatively for the first 200 miles/
300 km.
Retreaded tires
The manufacturer of your vehicle does not rec‐
ommend the use of retreaded tires. Seite 250
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Wheels and tires