2005 BMW 325XI wheel size

Wheels and tires
108
Wheels and tires
Tire inflation pressures
Information for your safety
It is not merely the tires' service life, but also
driving comfort and, to a great extent, driving
safety that depend on the condition of the tires
and the maintenance of the specified tire pres-
sure.
Check the tire inflation pressure regularly
and correct it, if necessary: at least twice a
month and before starting long trips. If you fail
to observe this precaution you may be driving
on tires with incorrect tire pressures, a condi-
tion that can not only compromise your vehi-
cle's driving stability, but also lead to tire dam-
age and the risk of an accident. Do not drive
with deflated, i.e. flat tires, except when using
Run-Flat Tires. A flat tire will seriously impair
your vehicle's handling and braking response.
Attempts to drive on a flat tire can lead to loss of
control over the vehicle.<
Checking pressure
Only check tire inflation pressure when the
tires are cold. This means after a maximum of
1.25 miles/2 km driving or when the vehicle has
been parked for at least 2 hours. When tires are
warm, the tire inflation pressure is higher.
After correcting tire inflation pressures,
always reinitialize the Flat Tire Monitor,
refer to page72.<
Inflation pressure specifications
The tables below provide all the correct inflation
pressures for the specified tire sizes at ambient
temperature.
The inflation pressures apply to the tire
sizes approved and tire brands recom-
mended by BMW; a list of these is available
from your BMW Center.<
For correct identification of the right tire infla-
tion pressures, observe the following:
>Tire sizes for your vehicle>Load conditions
>Maximum allowable driving speed
Tire inflation pressures for driving up to
100 mph or 160 km/h
For normal driving up to 100 mph or 160 km/h
and to achieve optimum driving comfort, adjust
pressures to the respective tire inflation pres-
sures listed on the following pages in the col-
umns for traveling speeds up to a maximum of
100mph or 160km/h.
These tire inflation pressures can also be found
on the driver's-side door post when the driver's
door is open.
The maximum permissible speed for
these tire pressures is 100 mph or
160 km/h. Do not exceed this speed, otherwise
tire damage and accidents could occur.<
Tire inflation pressures for driving
above 100 mph or 160 km/h
In order to drive at maximum speeds in
excess of 100 mph or 160 km/h, adjust
pressures to the respective tire inflation pres-
sures listed on the following pages in the col-
umns for traveling speeds including those
exceeding 100 mph or 160 km/h. Otherwise tire
damage and accidents could occur.<
Observe all national and local maximum speed
limits, otherwise violations of the laws could
occur.

Wheels and tires
110
Tire inflation pressures for the 325i
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a max. of
100mph / 160km/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
without Sports package
225/50 R 16 92 H M+S
205/55 R 16 91 H M+S
225/45 R 17 91 H M+S
225/45 R 17 94 V M+S XL33/230 41/280 - - 33/230 41/280
Front: 225/45 R 17 91 V 29/200 - 29/200 - 32/220 -
Rear: 255/40 R 17 94 V - 32/220 - 32/220 - 35/240
Front: 225/35 R 19 88 Y XL 35/240 - 32/220 - 35/240 -
Rear: 255/30 R 19 91 Y XL - 41/280 - 35/240 - 41/280
with Sports package
225/50 R 16 92 H M+S
225/45 R 17 91 H M+S
205/55 R 16 91 H M+S33/230 41/280 - - 35/240 42/290
225/45 R 17 94 V M+S XL 33/230 41/280 - - 38/260 45/310
Front: 225/45 R 17 91 V 29/200 - 29/200 - 35/240 -
Rear: 255/40 R 17 94 V - 32/220 - 33/230 - 39/270
Front: 225/35 R 19 88 Y XL 35/240 - 33/230 - 38/260 -
Rear: 255/30 R 19 91 Y XL - 41/280 - 36/250 - 42/290
More details on the permissible load and weights can be found on page150.

Wheels and tires
112
Tire inflation pressures for the 330i
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a max. of
100mph / 160km/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
without Sports package:
225/45 R 17 91 H M+S
225/45 R 17 94 V M+S XL33/230 41/280 - - 33/230 41/280
Front: 225/45 R 17 91 V 29/200 - 29/200 - 33/230 -
Rear: 255/40 R 17 94 V - 32/220 - 32/220 - 36/250
Front: 225/40 R 18 88 W 32/220 - 32/220 - 36/250 -
Rear: 255/35 R 18 90 W - 36/250 - 36/250 - 41/280
Front: 225/40 R 18 88 Y - - 29/200 - 30/210 -
Rear: 255/35 R 18 90 Y - - - 32/220 - 36/250
Front: 225/35 R 19 88 Y XL 36/250 - 32/220 - 36/250 -
Rear: 255/30 R 19 91 Y XL - 41/280 - 36/250 - 41/280
with Sports package:
225/45 R 17 91 H M+S
225/45 R 17 94 V M+S XL33/230 41/280 - - 38/260 45/310
Front: 225/45 R 17 91 V 29/200 - 32/220 - 38/260 -
Rear: 255/40 R 17 94 V - 32/220 - 35/240 - 41/280
Front: 225/40 R 18 88 W 32/220 - 35/240 - 38/260 -
Rear: 255/35 R 18 90 W - 36/250 - 38/260 - 45/310
Front: 225/40 R 18 88 Y - - 30/210 - 33/230 -
Rear: 255/35 R 18 90 Y - - - 33/230 - 39/270
Front: 225/35 R 19 88 Y XL 36/250 - 35/240 - 38/260
Rear: 255/30 R 19 91 Y XL - 41/280 - 38/260 - 45/310
More details on the permissible load and weights can be found on page150.

Wheels and tires
114
Tire identification marks
Knowledge of the labeling on the side of the tire
makes it easier to identify and choose the right
tires.
Tire size
Speed code letter
Q = up to 100 mph or 160 km/h
T = up to 118 mph or 190 km/h
H = up to 131 mph or 210 km/h
V = up to 150 mph or 240 km/h
W = up to 167 mph or 270 km/h
Y = up to 186 mph or 300 km/h
Tire Identification Number
Tires with DOT codes meet the guidelines of
the US Department of Transport.
DOT code:
Tire age
The manufacturing date of tires is contained in
the tire coding: DOT … 0705 means that the
tire was manufactured in week 7 of 2005.
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.
Those grades represent the tire's ability to stop
on wet pavement as measured under controlled
conditions on specified government test sur-
faces 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.< e.g.
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
225/45 R1791 V
e.g.
Manufacturer's code
for tire make
Tire size and
tire design
Tire ageDOT xxxx xxx 0705

Wheels and tires
116
Tire age
For various reasons, such as the development
of brittleness, BMW recommends tire replace-
ment after no more than 6 years, regardless of
the actual wear of the tires.
The manufacturing date of tires is contained in
the tire coding:
DOT ... 0705 means that the tire was manufac-
tured in week 07 of 2005.
Run-Flat Tires
The symbol identifying Run-Flat Tires is a circle
with the letters RSC on the sidewall.
Run-Flat Tires comprise a conditionally self-
supporting tire and a special rim. The reinforce-
ment in the sidewalls ensures that the tire can
continue to be used subject to certain restric-
tions, even if depressurized.
For information on continuing to drive with a flat
tire, refer to Indication of a flat tire, page72.
New wheels and tires
Have new wheels and tires installed only
by your BMW Center or tire shop that
works according to BMW repair procedures
with correspondingly trained personnel. If this
work is not carried out properly, there is a dan-
ger of subsequent damage and related safety
h a z a r d s . M a k e s u re t h a t t h e n e w w h ee l s a r e b a l-
anced.<
Retreaded tires
BMW recommends that you do not use
retreaded tires, since driving safety may be impaired. The causes for this include poten-
tially different tire casing structures and often
wide variations in tire age, which can result in a
limited service life.<
Correct 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, which could
lead to body contact and thus to severe acci-
dents. If non-approved wheels and tires are
used, BMW cannot evaluate their suitability,
and therefore cannot guarantee their driving
safety.<
You can inquire about the right wheel/tire com-
bination at your BMW Center.
The correct combination of wheels and tires is
also necessary to ensure reliable operation of
various vehicle systems such as ABS and DSC.
To maintain good handling and vehicle
response, use only tires of a single brand and
tread configuration. After a tire has been dam-
aged, mount the previous wheel and tire combi-
nation again as soon as possible.
Recommended tire brands
Certain makes of tire are recommended by
BMW for each tire size. They are marked with a
clearly visible BMW designation on the sidewall
of the tire.
When properly used, these tires meet the high-
est standards in terms of safety and handling
characteristics.

Reference
At a glance
Controls
Driving tips
Mobility
117
Run-Flat Tires
When mounting new tires or changing over
from summer to winter tires and vice versa,
mount Run-Flat Tires for your own safety. In the
event of a flat, moreover, no spare wheel is
available. Your BMW Center will be glad to
advise you.
For safety reasons, BMW recommends
that damaged Run-Flat Tires be replaced
rather than repaired.<
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.
Pay attention to speed
Always comply with the speed limit for the
winter tires mounted on your car; failure
to do so could result in tire damage and acci-
dents.<
If the car is capable of speeds higher than that
permitted for the winter tires, a label stating the
maximum permitted speed for the mounted
tires must be displayed in your field of view.
Specialist tire dealers and your BMW Center
can supply these labels.
Storage
Always 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 sidewall
of the tire.
Snow chains*
Only certain fine-link snow chains have been
tested by BMW, classified as safe for use and
recommended. Consult your BMW Center for
more information. Attach snow chains in pairs
and only to the rear wheels. Observe the manu-facturer's instructions when mounting snow
chains. Do not exceed a speed of 30 mph or
50 km/h.
You are not permitted to mount snow chains to
tires of the following sizes:
>255/40 R 17
>255/35 R 18
>255/30 R 19
Do not initialize the Flat Tire Monitor if
snow chains are mounted, otherwise the
instrument might issue an incorrect reading.
When driving with snow chains, you may find it
helpful to activate DTC temporarily, refer to
page68.<

Reference
At a glance
Controls
Driving tips
Mobility
161
Steering wheel38
– adjustment38
– buttons on steering
wheel11
– lock42
Steering with variable ratio,
refer to Active steering73
Steptronic, refer to Automatic
transmission with
Steptronic47
Storage compartments90
Storing seat positions, refer to
Seat and mirror memory35
Storing tires117
Stowage, refer to Storage
compartments90
Summer tires, refer to Wheels
and tires108
Sun blinds89
Switches, refer to Cockpit10
Switching off
– engine43
Switching off the engine
– start/stop button42
Switching the cooling function
on and off85
Symbols4
T
Tachometer59
Tailgate
– locking or unlocking
separately24
– opening and closing23
– opening from inside23
– opening from outside23
Tail lamps127
– replacing bulbs128
Tank contents, refer to
Capacities151
Technical data148
Technical modifications5
Telephone
– installation location, refer to
Center armrest89
– refer to separate Owner's
ManualTemperature adjustments
– air conditioner81
– automatic climate control83
Temperature display
– ice warning59
– outside temperature59
– setting the units62
Temperature of the coolant,
refer to Coolant
temperature59
Tensioning straps, refer to
Securing cargo101
The individual vehicle5
Thigh support33
Third brake lamp, refer to
Center brake lamp128
Tilt alarm sensor25
Tilt function, passenger-side
mirror37
Tire inflation pressures108
Tire pressure
– loss72
Tire pressure monitoring,
refer to Flat Tire Monitor71
Tire puncture, refer to Flat Tire
Monitor72
Tire Quality Grading114
Tires
– age114,116
– breaking in98
– changing, refer to Changing
wheels129
– condition115
– damage115
– inflation pressure108
– minimum tread depth115
– new tires116
– pressure monitoring, refer to
Flat Tire Monitor71
– puncture72
– Run-Flat Tires116
– size114
– wear indicators, refer to
Minimum tread depth115
– winter tires117
Tools, refer to Onboard tool
kit125
Torque148
Tow bar134Tow fitting
– screw thread133
Tow fittings133
Tow fittings for tow-starting
and towing away133
Towing133
– methods134
Towing away
– car with automatic
transmission133
Tow rope134
Tow-starting133
– sequential manual gearbox
SMG134
Track width, refer to
Dimensions149
Traction-assist feature, refer
to DSC68
Traction control, refer to DSC
Dynamic Stability
Control68
Trailer towing
– towing loads and gross
weight150
Transmission
– automatic transmission with
Steptronic47
– manual transmission44
– overriding selector lever lock
for automatic transmission
with Steptronic48
– sequential manual gearbox
SMG45
Transporting children
safely39
Transport securing device,
refer to Securing cargo101
Tread depth, refer to Minimum
tire tread115
Trip-distance counter, refer to
Trip odometer59
Triple turn signal activation49
Trip odometer59
Trunk
– lid, refer to Luggage
compartment lid23
Trunk lamp, refer to Luggage
compartment lamp79