2008 BMW 525XI TOURING tire size

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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 exceeding
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: 275/35R1895Y32/220 35/240 32/220 32/220 33/230 38/260
Front: 245/35 R 19 93 Y XL
Rear: 275/30R1996YXL35/240 39/270 33/230 38/260 38/260 45/310
More details on the permissible load and weights can be found on page263.
e.g.
Nominal width in mm
Aspect ratio in Ξ
Belted construction – radial
Rim diameter in inches
Carrying capacity ID-code
(not in ZR tires)
Speed code letter
(in ZR tires before the R)225/50 R1794 W
e.g.
Manufacturer code
for tire make
Tire size and tire design
Tire ageDOT xxxx xxx 1008

Wheels and tires
230
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 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 page96. 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
t i re d a m a g e m a y o c cu r , w h ic h c a n re s u l t i n a c c i-
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
page94, or reset the Tire Pressure Monitor,
refer to page96.
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 page254.
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:
>Seat, mirror and steering wheel memory
The positions must be stored again, refer to
page48.
>Time and date
Must be updated again, refer to page86.
>Radio
Radio stations must be stored again, refer
to page174.
>Navigation system
You must wait until the system becomes
functional again, refer to page142.
>Glass roof, electric
It may only be possible to raise the glass
roof. The system must be initialized, refer to
page42.
>Panorama glass roof
It may only be possible to raise the glass
roof. The system must be reinitialized, refer
to page44.
>Active steering
The system is deactivated and must be
reinitialized, refer to page98. Until then,
larger steering wheel movements are
required.
>Power windows
The pinch prevention system for the power
windows must be reinitialized, refer to
page40.
Talk to your BMW center before placing
the stored vehicle back in service.

Everything from A to Z
286 Storing tires230
Storing your vehicle242
"Street" in destination
entry146
Summer tires, refer to Wheels
and tires222
Sun blinds121
"Surround Settings", Tone
control170,171
SW, waveband172
Swinging up floor panel,
Sports Wagon128
Switches, refer to Cockpit10
Switching automatically
between high beams and
low beams, refer to High-
beam assistant109
Switching off engine62
Switching on
– audio168
– CD changer168
– CD player168
– radio168
Switching on hour signal87
Swiveling headlamps, refer to
Adaptive Head Light109
Symbols4
– indicator/warning lamps13
– navigation system162
– status information20
– traffic information with
navigation system160
T
Tachometer78
"Tailgate"36
Tailgate33
– automatic operation36
– emergency operation, refer
to Opening manually35
– locking and unlocking from
inside32
– opening from inside35
Tail lamps246
– replacing bulbs246
Tank contents, refer to
Capacities264Target cursor for
navigation149
Technical alterations, refer to
For your own safety5
Technical data260
– capacities264
– dimensions261
Telematics, refer to
BMW Assist209
Telephone
– installation location, refer to
Center armrest122
– refer to Mobile phone194
"Telephone list"55
Temperature
– adjusting in upper body
region114
– adjusting with automatic
climate control114
– changing units of
measure88
– refer to Coolant
temperature78
Temperature display
– changing units of
measure88
– outside temperature78
– outside temperature
warning78
Tempomat, refer to Cruise
control69
"Text language"88
"Theater", refer to Tone
control171
The individual vehicle5
Third brake lamp, refer to
Center brake lamp247
Through-loading system126
Tightening torque of the lug
bolts, refer to After
mounting250
Tilt alarm sensor38
– switching off38
Tilting down passenger-side
exterior mirror53
"Time"87
"Time format"87
Timer, refer to Preselecting
activation times118
"Timer 2" for parked-car
ventilation118
"Timer 1" for parked-car
ventilation118
Tire inflation pressures222
Tire pressure loss95,96
Tire Pressure Monitor
TPM96
Tire Quality Grading228
Tire replacement, new wheels
and tires229
Tires
– age228
– air loss95,97
– breaking-in134
– changing229
– condition229
– damage229
– flat tire, refer to Changing
wheels248
– inflation pressure222
– new wheels and tires229
– pressure monitoring, refer to
Flat Tire Monitor94
– pressure monitoring, refer to
TPM Tire Pressure
Monitor96
– replacing248
– retreaded tires230
– run-flat tires229
– size227
– tread229
– wear indicators229
– wheel/tire combination229
– winter tires230
Tire trouble
– changing wheels248
– compact wheel250
TMC station, refer to Traffic
information160
"Tone"169
Tone dialing method204
Tone in audio mode
– adjusting169
– middle setting171
Tone on locking/unlocking31
Tools, refer to Onboard
toolkit243
"Top 8" for mobile phone202