2010 BMW 528I XDRIVE SEDAN tire size

Wheels and tires
206
550i
Tire identification marks
Knowledge of the labeling on the side of the tire
makes it easier to identify and choose the right
tires.
Tire sizeSpeed letter
Q = up to 100 mph/160 km/h
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 U.S. Department of Transportation.
DOT code:
Tire sizePressure specifications in psi/kPa
Compact wheel
*:
T 135/80 R 17 102 M61/420
Traveling speeds up
to max. of 100 mph/
160 km/hTraveling speeds including those exceed-
ing 100 mph/160 km/h
All pressure specifications
in the table are indicated in psi/
kilopascal with cold tires.
Cold = ambient temperature
245/40 R 18 93 Y 32/220 38/260 32/220 35/240 33/230 41/280
245/45 R 17 95 W
245/45 R 17 99 V M+S XL
225/50 R 17 94 H M+S
225/50 R 17 94 W32/220 38/260 32/220 38/260 38/260 45/310
245/40 R 18 97 V M+S XL 33/230 39/270 33/230 39/270 39/270 46/320
Front: 245/40 R 18 93 Y
Rear: 275/35 R 18 95 Y32/220 35/240 32/220 32/220 33/230 38/260
Front: 245/35 R 19 93 Y XL
Rear: 275/30 R 19 96 Y XL35/240 39/270 33/230 38/260 38/260 45/310
More details on the permissible load and weights can be found on page241.
For instance
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)225/50 R1794 W

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Tire age
The manufacturing date of tires is contained in
the tire coding: DOT … 1009 means that the
tire was manufactured in week 10 of 2009.
BMW recommends that you replace all tires
after 6 years at most, 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 government course as a tire graded
100. The relative performance of tires depends
upon the actual conditions of their use, how-
ever, and may depart significantly from the
norm due to variations in driving habits, service
practices and differences in road characteris-
tics 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 con-
trolled conditions on specified government test
surfaces 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
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 page208.
M+S
Winter and all-season tires.
These have better winter properties than sum-
mer tires. For instance
Manufacturer code
for tire make
Tire size and tire design
Tire age
DOT xxxx xxx 1009

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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 recommends that you do not use
retreaded tires, since driving safety may
be impaired. The causes for this include the
possibly 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 correct wheel/tire combination also affects
various systems whose function would other-
wise be impaired, e.g., ABS, DSC or xDrive.
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 page90. Your BMW center will be
happy to advise you on this subject.
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.
Paying attention to 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.

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3.Check and correct the tire inflation pressure
at the earliest opportunity.
Protect valve stems with valve stem
seal caps against dirt and contamina-
tion. Dirt in valve stems is a frequent source
of gradual air loss.<
4.Initialize the Flat Tire Monitor, refer to
page89, or reset the Tire Pressure Monitor,
refer to page90.
5.Replace the damaged tire as soon as possi-
ble and have the new wheel/tire balanced.
Driving with compact wheel
Drive reservedly and do not exceed a speed of
50 mph/80 km/h.
The driving characteristics change, for example
reduced track stability on braking, extended
braking distance, and altered self-steering
characteristics in the limit range. In conjunction
with winter tires, these characteristics are more
pronounced.
Only one compact wheel may be
mounted. Restore the wheels and tires to
their original size as quickly as possible. Failure
to do so is a safety risk.<
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 page232.
Disposal
Have old batteries disposed of by your
BMW center or bring them to a recycling
center. Maintain the battery in an upright posi-tion 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:
>Seat, mirror and steering wheel memory
The positions must be stored again, refer to
page46.
>Time and date
Must be updated again, refer to page78.
>Radio
In some cases, radio stations may have to
be stored again, refer to page156.
>Navigation system
You must wait until the system becomes
functional again, refer to page132.
>Glass roof, electric
It may only be possible to raise the glass
roof. The system must be initialized, refer to
page40.
>Panorama glass roof
It may only be possible to raise the glass
roof. The system must be reinitialized, refer
to page41.
>Active steering
The system automatically initializes itself
briefly during a trip. The system is deacti-
vated during this time, refer to page92.
>xDrive
The system automatically initializes itself
during a trip. Indicator lamps light up during
this time. If the lamps do not disappear dur-
ing the current trip, have the system
checked.
>Power windows
The pinch prevention system for the power
windows must be reinitialized, refer to
page38.
Talk to your BMW center before placing
the stored vehicle back in service.<

Everything from A to Z
264 Storing sitting position, refer
to Seat, mirror and steering
wheel memory45
Storing tires209
Storing your vehicle220
Street, entering,
navigation134
Summer tires, refer to Wheels
and tires202
Sun blinds111
Surround153
SVCD162
SW, waveband155
Swinging up floor panel,
Sports Wagon118
Switches, refer to Cockpit10
Switching automatically
between high beams and
low beams, refer to High-
beam Assistant102
Switching off
– engine58
Switching on
– audio152
– CD changer152
– CD player152
– radio152
Swiveling
– headlamps, refer to Adaptive
Light Control101
Symbols4
– indicator/warning lamps13
T
Tachometer74
Tailgate31
– automatic operation34
– emergency operation, refer
to Opening manually33
– locking and unlocking from
inside30
– opening from inside33
Tail lamps224
– replacing bulbs224
Tank contents, refer to
Capacities242
Target cursor for
navigation138Technical alterations, refer to
For your own safety5
Technical data238
– capacities242
– dimensions239
Telephone178
– installation location, refer to
Center armrest112
– voice commands185
TeleService192
TeleService Diagnosis194
TeleService Help194
Temperature
– adjusting in upper body
region108
– adjusting with automatic
climate control106
– changing unit of measure76
– refer to Coolant
temperature74
Temperature display
– outside temperature74
– outside temperature
warning74
– setting the units76
Tempomat, refer to Cruise
control65
The individual vehicle5
Third brake lamp, refer to
Center brake lamp225
Through-loading system116
Tightening torque of the lug
bolts, refer to After
mounting228
Tilt alarm sensor36
– switching off36
Tilting down passenger-side
exterior mirror51
Timer, refer to Preselecting
activation times109
Tire inflation pressures202
Tire pressure
– loss89,90
Tire Pressure Monitor
TPM90
Tire Quality Grading
207
Tire replacement
– new wheels and tires208Tires
– age207
– air loss89,91
– breaking-in124
– changing208
– condition208
– damage208
– flat tire, refer to Changing
wheels226
– inflation pressure202
– new wheels and tires208
– pressure monitoring, refer to
Flat Tire Monitor88
– pressure monitoring, refer to
TPM Tire Pressure
Monitor90
– replacing226
– retreaded tires209
– size206
– tread208
– wear indicators208
– wheel/tire combination208
– winter tires209
Tires, run-flat
– continuing driving with
damaged tire89,91
– flat tire91
– inflation pressure91
– new tires208
– new wheels and tires208
Tire trouble
– changing wheels226
– compact wheel228
TMC station, refer to Traffic
information145
Tone
– control152
– middle setting154
Tools, refer to Onboard
vehicle tool kit221
Top 50 of music
collection169
Torque
– refer to Engine data238
Torque, lug bolts, refer to
After mounting228
Tow bar234
Tow fitting233