wheel size BMW 328I XDRIVE CONVERTIBLE 2011 E94 Owner's Manual

Technology for driving comfort and safety
96
Message for unsuccessful
system reset
Yellow warning lamp comes on.
A message appears on the
Control Display.
The system is not reset, e.g. after a wheel
change.
Check the tire inflation pressure and reset
the system, refer to page95.
Malfunction
The small warning lamp flashes in
yellow and then lights up continu-
ously; the large warning lamp comes
on in yellow. The tires appear in gray
in the Control Display. No punctures can be
detected.
Display in the following situations:
>Malfunction
Have the system checked.
>A wheel without TPM electronics has been
installed:
Have it checked by your BMW center.
>Interference from systems or devices that
use the same radio frequency:
The system automatically becomes active
again when the vehicle moves out of the
interference zone.
Declaration according to NHTSA/
FMVSS 138
Tire Pressure Monitoring Systems
Each tire should be checked monthly when cold
and inflated to the inflation pressure recom-
mended 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 infla-
tion 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 sys-
tem, TPMS, that illuminates a low tire pressure
telltale when one or more of your tires are signif-
icantly underinflated. 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 pressure. Driving
on a significantly underinflated tire causes the
tire to overheat and can lead to tire failure.
Underinflation also reduces fuel efficiency and
tire tread life, and may affect the vehicle’s han-
dling and stopping ability. Please note that the
TPMS is not a substitute for proper tire mainte-
nance, and it is the driver’s responsibility to
maintain correct tire pressure, even if underin-
flation has not reached the level at which the
TPMS low tire pressure telltale illuminates.
The TPMS malfunction indicator is combined
with the low tire pressure telltale. When the sys-
tem detects a malfunction, the telltale will flash
for approximately one minute and then remain
continuously lit. This sequence will continue
upon subsequent vehicle startups as long as
the malfunction 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
replacement or alternate tires or wheels on the
vehicle that prevent the TPMS from functioning
properly. Always check the TPMS malfunction
telltale 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.
Active steering*
The concept
Active steering varies the turning angle of the
front wheels in relation to steering wheel move-
ments. It also varies the steering force required
to turn the wheels depending on the speed at
which you are driving.
When you are driving in the low road speed
range, e.g. in a town or when parking, the steer-
ing angle is increased, i.e. steering becomes
very direct and less effort is required to turn the
wheels. In the higher speed range, on the other
hand, the steering angle is reduced as the
speed increases. This improves the handling of
your BMW over the entire speed range.

Wheels and tires
208
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 the tire inflation pressure,
reset the Tire Pressure Monitor, refer to
page95, or reinitialize the Flat Tire Monitor,
refer to page93.<
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
100 mph or 160 km/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
210
Coupe: tire inflation pressures for the 328xi
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a 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
Without Sport Package:
205/55 R 16 91 H M+S
225/50 R 16 92 H M+S
225/45 R 17 91 H M+S
225/45 R 17 91 V32/220 38/260 35/240 42/290
225/45 R 17 94 V M+S XL 32/220 39/270 36/250 44/300
Front: 225/45 R 17 91 V 32/220 - 33/230 -
Rear: 255/40 R 17 94 V - 33/230 - 39/270
Front: 225/40 R 18 88 W 33/230 - 36/250 -
Rear: 255/35 R 18 90 W - 38/260 - 42/290
Front: 225/35 R 19 88 Y XL 39/270 - 39/270 -
Rear: 255/30 R 19 91 Y XL - 44/300 - 44/300
With Sport Package:
205/55 R 16 91 H M+S
225/50 R 16 92 H M+S
225/45 R 17 91 H M+S32/220 38/260 35/240 42/290
225/45 R 17 91 V 32/220 38/260 41/280 48/330
225/45 R 17 94 V M+S XL 32/220 39/270 41/280 48/330
Front: 225/45 R 17 91 V 32/220 - 41/280 -
Rear: 255/40 R 17 94 V - 33/230 - 42/290
Front: 225/40 R 18 88 W 33/230 - 39/270 -
Rear: 255/35 R 18 90 W - 38/260 - 46/320
Front: 225/35 R 19 88 Y XL 39/270 - 41/280 -
Rear: 255/30 R 19 91 Y XL - 44/300 - 46/320
More details on the permissible load and weights can be found on page249.

Wheels and tires
212
Coupe: tire inflation pressures for the 335xi
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a 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
Without Sport Package:
225/45 R 17 91 H M+S 32/220 39/270 39/270 45/310
225/45 R 17 94 V M+S XL 33/230 41/280 39/270 45/310
Front: 225/45 R 17 91 V 32/220 - 39/270 -
Rear: 255/40 R 17 94 V - 35/240 - 39/270
Front: 225/40 R 18 88 W 35/240 - 38/260 -
Rear: 255/35 R 18 90 W - 39/270 - 42/290
Front: 225/40 R 18 88 Y 35/240 - 35/240 -
Rear: 255/35 R 18 90 Y - 39/270 - 39/270
Front: 225/35 R 19 88 Y XL 39/270 - 39/270 -
Rear: 255/30 R 19 91 Y XL - 45/310 - 45/310
With Sport Package:
225/45 R 17 91 H M+S 32/220 39/270 39/270 45/310
225/45 R 17 94 V M+S XL 33/230 41/280 42/290 49/340
Front: 225/45 R 17 91 V 32/220 - 39/270 -
Rear: 255/40 R 17 94 V - 35/240 - 44/300
Front: 225/40 R 18 88 W 35/240 - 42/290 -
Rear: 255/35 R 18 90 W - 39/270 - 48/330
Front: 225/40 R 18 88 Y 35/240 - 39/270 -
Rear: 255/35 R 18 90 Y - 39/270 - 42/290
Front: 225/35 R 19 88 Y XL 39/270 - 42/290 -
Rear: 255/30 R 19 91 Y XL - 45/310 - 48/330
More details on the permissible load and weights can be found on page249.

Wheels and tires
214
Convertible: tire inflation pressures for the 328i
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a 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
Without Sport Package:
205/55 R 16 91 H M+S
225/50 R 16 92 H M+S33/230 41/280 36/250 44/300
225/45 R 17 91 H M+S 33/230 41/280 39/270 46/320
225/45 R 17 91 W 33/230 41/280 36/250 44/300
225/45 R 17 94 V M+S XL 35/240 42/290 39/270 46/320
Front: 225/45 R 17 91 V 32/220 - 36/250 -
Rear: 255/40 R 17 94 V - 36/250 - 42/290
Front: 225/40 R 18 88 W 35/240 - 38/260 -
Rear: 255/35 R 18 90 W - 42/290 - 45/310
Front: 225/40 R 18 88 Y 35/240 - 35/240 -
Rear: 255/35 R 18 90 Y - 42/290 - 42/290
Front: 225/35 R 19 88 Y XL 39/270 - 39/270 -
Rear: 255/30 R 19 91 Y XL - 46/320 - 46/320
With Sport Package:
205/55 R 16 91 H M+S
225/50 R 16 92 H M+S33/230 41/280 36/250 44/300
225/45 R 17 91 H M+S
225/45 R 17 91 W33/230 41/280 41/280 48/330
225/45 R 17 94 V M+S XL 35/240 42/290 42/290 49/340
Front: 225/45 R 17 91 V 32/220 - 41/280 -
Rear: 255/40 R 17 94 V - 36/250 - 45/310
Front: 225/40 R 18 88 W 35/240 - 42/290 -
Rear: 255/35 R 18 90 W - 42/290 - 49/340
Front: 225/40 R 18 88 Y 35/240 - 38/260 -
Rear: 255/35 R 18 90 Y - 42/290 - 45/310

Wheels and tires
216
Convertible: tire inflation pressures for the 335i
Tire size Pressure specifications in psi/kPa
Traveling speeds
up to a 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
Without Sport Package:
225/45 R 17 91 H M+S 33/230 41/280 39/270 46/320
225/45 R 17 94 V M+S XL 35/240 42/290 39/270 46/320
Front: 225/45 R 17 91 V 32/220 - 36/250 -
Rear: 255/40 R 17 94 V - 36/250 - 42/290
Front: 225/40 R 18 88 W 35/240 - 38/260 -
Rear: 255/35 R 18 90 W - 42/290 - 45/310
Front: 225/40 R 18 88 Y 35/240 - 35/240 -
Rear: 255/35 R 18 90 Y - 42/290 - 42/290
Front: 225/35 R 19 88 Y XL 39/270 - 39/270 -
Rear: 255/30 R 19 91 Y XL - 46/320 - 46/320
With Sport Package:
225/45 R 17 91 H M+S 33/230 41/280 39/270 46/320
225/45 R 17 94 V M+S XL 35/240 42/290 42/290 49/340
Front: 225/45 R 17 91 V 32/220 - 41/280 -
Rear: 255/40 R 17 94 V - 36/250 - 45/310
Front: 225/40 R 18 88 W 35/240 - 42/290 -
Rear: 255/35 R 18 90 W - 42/290 - 49/340
Front: 225/40 R 18 88 Y 35/240 - 38/260 -
Rear: 255/35 R 18 90 Y - 42/290 - 45/310
Front: 225/35 R 19 88 Y XL 39/270 - 42/290 -
Rear: 255/30 R 19 91 Y XL - 46/320 - 49/340
More details on the permissible load and weights can be found on page249.

Wheels and tires
218
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 Transportation.
DOT code:
Tire age
The manufacturing date of tires is contained in
the tire coding: DOT … 1010 means that the
tire was manufactured in week 10 of 2010.
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.<
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
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 tires225/45 R1791 V
e.g.
Manufacturer's
code for tire make
Tire size and
tire design
Tire ageDOT xxxx xxx 1010

Wheels and tires
220
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 ... 1010 means that the tire was manufac-
tured in week 10 of 2010.
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-sup-
porting 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, page93.
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
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 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
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, no spare wheel is available. Your
BMW center will be glad to advise you.
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, DSC or
FTM.
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.
Wheels with Tire Pressure Monitor
TPM electronics
When mounting new tires or changing over
from summer to winter tires, or vice versa, only
use wheels with TPM electronics; otherwise,
the Tire Pressure Monitor may not be able to
detect a puncture, refer to page94. Your
BMW center will be glad to advise you.

Mobility
221Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
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.
Special characteristics of winter tires
BMW recommends winter tires for driving on
winter roads or at temperatures below +45 7/
+7 6. 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.
Swapping wheels between axles
BMW advises against swapping wheels
between the front and rear axles, even if all tires
have the same size, as this could impair driving
characteristics. If the tires are of mixed sizes,
swapping wheels between the axles is not per-
missible.
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.
Snow chains must be mounted in pairs and on
the rear wheels only. Observe the manufac-
turer's instructions when mounting snow
chains. Do not exceed a speed of 30 mph or
50 km/h.
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
page90.<

Reference 271
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Temperature display
– outside temperature75
– outside temperature
warning75
– setting the units80
Tempomat, refer to Cruise
control66
Tensioning straps, refer to
Securing cargo130
The individual vehicle5
Third brake lamp, refer to
Center brake lamp235
Through-loading opening with
integrated transport
bag121
Through-loading system118
Tilt alarm sensor33
Tilt function, passenger side
mirror50
Timer, refer to Preselecting
switch-on times110
Tire inflation pressure208
– loss93,94
Tire pressure monitoring,
refer to Flat Tire Monitor92
Tire Pressure Monitor
TPM94
– resetting the system95
– system limitations94
– warning lamp95
Tire puncture, refer to Flat Tire
Monitor93
Tire Quality Grading218Tires
– age218,220
– air loss95
– breaking in126
– changing, refer to Changing
wheels236
– condition219
– damage219
– inflation pressure208
– labels218
– minimum tread depth219
– new wheels and tires220
– pressure monitoring, refer to
Flat Tire Monitor92
– pressure monitoring, refer to
Tire Pressure Monitor
TPM94
– puncture93
– replacing220
– size218
– storage221
– tread depth219
– wear indicators, refer to
Minimum tread depth219
– wheel/tire combination, refer
to Correct wheels and
tires220
– winter tires221
TMC station, refer to Traffic
bulletins148
Tone
– control154
– middle setting156
Tools, refer to Onboard
vehicle tool kit233
Top, refer to Retractable
hardtop38
Top 50 of music
collection174
Torque, refer to Engine
data246
Tow bar242
Tow fitting241
– screw thread241Tow fittings for tow-starting
and towing away241
Towing241
– car with automatic
transmission241
– methods242
– with 7-gear Sports
automatic transmission with
double clutch242
Towing and tow-starting241
Town/city, for navigation135
Tow rope242
Tow-starting241,243
TPM, refer to Tire Pressure
Monitor94
Track
– selecting on CD165
Traction control, refer to
Dynamic Stability Control
DSC89
Traffic bulletins
– categories149
Traffic bulletins, filtering149
Traffic bulletins for
navigation148
– display in map view149
– during destination
guidance150
Traffic jam
– displaying traffic
bulletins148
Transmission
– 7-gear Sports automatic
transmission with double
clutch60
– automatic transmission with
Steptronic58
– idle position61
– Launch Control64
– manually unlocking parking
lock63
– manual transmission57
– overriding selector lever lock
for automatic transmission
with Steptronic59
– reverse gear61