2013 BMW 3 SERIES COUPE wheel

249
Wheels and tires
Mobility
Convertible: inflation pressures 335is
Front: 225/35 R 19 88 Y XL RSC
2.7/39 -2.9/42 -
Rear: 255/30 R 19 91 Y XL RSC - 3.2/46- 3.4/49
Compact spare wheel:
T 125/80 R 17 99 M Traveling speeds up to a max. of 50 mph/80 km/h
4.2/60
Tire size Pressure specifications in bar/psi
Traveling speeds up to a max. of
100 mph/160 km/h Traveling speeds
including those exceeding
100 mph/160 km/h
All pressure specifications in the table are
indicated in bar/psi with cold tires.
Cold = ambient temperature
Tire size Pressure specifications in bar/psi
Traveling speeds up to a max. of
100 mph/160 km/h Traveling speeds
including those
exceeding
100 mph/160 km/h
All pressure specifications in the table are
indicated in bar/psi with cold tires.
Cold = ambient temperature
225/45 R 17 91 H M+S RSC 2.3/33 2.8/412.7/39 3.2/46
225/45 R 17 94 V M+S XL RSC 2.4/35 2.9/422.9/42 3.4/49
Front: 225/40 R 18 88 W RSC 2.4/35 -2.9/42 -
Rear: 255/35 R 18 90 W RSC - 2.9/42- 3.4/49
Front: 225/40 R 18 88 Y RSC 2.4/35 -2.6/38 -
Rear: 255/35 R 18 90 Y RSC - 2.9/42- 3.1/45
Front: 225/35 R 19 88 Y XL RSC 2.7/39 -2.9/42 -
Rear: 255/30 R 19 91 Y XL RSC - 3.2/46- 3.4/49
Compact spare wheel:
T 125/80 R 17 99 M Traveling speeds up to a max. of 50 mph/80 km/h
4.2/60

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MobilityWheels and tires
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 ... 1013 means that the tire
was manufactured in week 10 of 2013.
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 betw een 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 Requir ements 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 conditio ns on a specified gov-
ernment test course. For example, a tire graded
150 would wear one and one-half (1 γ) times as
well on the government course as a tire graded
100. The relative performance of tires depends
upon the actual conditio ns 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.
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 4012

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251
Wheels and tires
Mobility
The traction grade assigned to this tire is
based on straight-ahe
ad braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics. <
Temperature
The temperature grades are A, the highest, B,
and C, representing the ti re'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 whee l 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 exce ssive loading, either
separately or in combin ation, 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 page252.
M+S
Winter and all-season tires.
These have better wint er properties than
summer tires.
XL
Designation for specia lly reinforced tires.
Tire condition
Inspect your tires frequently for tread wear,
signs of damage and for foreign objects lodged
in the tread. Check the tread depth.
Minimum tread depth
The tread depth should not drop below 0.12 in/
3 mm, although, for example, European legisla-
tion only specifies a minimum tread depth of
0.063 in/1.6 mm. At tread depths below 0.12 in/
3 mm there is an increased risk of high-speed
hydroplaning, even when only small amounts of
water are present on the road surface.
When winter tires wear down past a tread depth
of 0.16 in/4 mm, they be come perceptibly less
suitable for winter condit ions. In the interest of
safety, new tires sh ould be installed.
Wear indicators in the base of the tread groove
are distributed around th e tire's circumference;
the letters TWI, for Tread Wear Indicator, on the
tire's sidewalls identify tires that incorporate
these wear indicators. On ce the tire tread has
worn down to the wear indicators, the tire has
worn to a depth of 0.063 in/1.6 mm.
Wheel/tire damage
Driving over rough or damaged road surfaces,
as well as debris, curbs and other obstacles can
cause serious damage to wheels, tires, and sus-
pension parts. This is more likely to occur with
low-profile tires, which provide less cushioning
between the wheel and th e road. Be careful to
avoid road hazards and reduce your speed,
especially if your vehi cle is equipped with low-
profile tires.

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252
MobilityWheels and tires
Unusual vibrations encountered during normal
vehicle operation can indicate tire failure or
some other vehicle defect. This can, for exam-
ple, be caused by driving over curbs. The same
applies to any other abnormal road behavior,
such as pulling severely to the right or left.
In these cases, reduce speed immedi-
ately and have wheels and tires thor-
oughly checked. To do so , drive carefully to the
nearest BMW center or tire dealer. If necessary,
have the vehicle towed there.
O t h e r w i s e , t i r e d a m a g e c a n p o s e a l e t h a l h a z a r d
to vehicle occupants and other road users. <
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 ... 1013 means that the tire was manufac-
tured in week 10 of 2013.
New wheels and tires
Have new wheels and tires mounted only
by your BMW center or by a tire dealer. If
this work is not carried out properly, there is a
danger of subsequent damage and related
safety hazards. Make sure that the new wheels
are balanced. <
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 ag e, 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 offi cial size ratings could
actually have different dimensions, which could
lead to body contact an d 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
combination 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. Af ter a tire has been
damaged, mount the previous wheel and tire
combination 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 Monito r may not be able to
detect a puncture, refer to page 102. Your
BMW center will be glad to advise you.

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Wheels and tires
Mobility
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 th an 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
accidents. <
If the car is capable of speeds higher than that
permitted for the winter ti res, 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 agains t 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 th is could impair driving
characteristics. If the tires are of mixed sizes,
swapping wheels between the axles is not
permissible.
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 en sures that the tire can
continue to be used su bject to certain restric-
tions, even if depressurized.
For information on continuing to drive with a flat
tire, refer to Indication of a flat tire, page 101.

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MobilityWheels and tires
Snow chains
Only certain fine-link sn ow chains have been
tested by BMW, classifi ed 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 Fl at 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
page 98.<

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262
MobilityCare
Care
Vehicle equipment
In this chapter, all pr oduction, country, and
optional equipment that is offered in the model
range is described. For this reason, descrip-
tions will be given of some equipment that may
not be available in a vehi cle, for example due to
the special options or national-market version
selected. This also app lies to safety related
functions and systems.
Washing the vehicle
Notes
When using steam cleaners or high-pres-
sure cleaning jets, ma ke sure to maintain
a sufficient distance and stay below a maximum
temperature of 140 °F/60 6.
Too close a distance, too high a pressure, or too
high a temperature may cause damage or pre-
liminary damage that can then lead to long-term
damage.
Follow the operating instructions for the steam
jet or high-pressure washer. <
When using high-pressure washers, do
not spray the sensors, e.g. of the Park
Distance Control, for an extended period and
maintain a distance of at least 1 ft/30 cm from
them. <
Regularly remove foreign objects, e.g. leaves, in
the vicinity of the windshield when the hood is
open.
Wash the vehicle more frequently, particularly
in winter.
Heavy soiling and road salt can lead to vehicle
damage.
Automatic car washes
Notes
In car washes with high pressures and
nozzle positions, wate r may drip into the
vehicle around the windows. <
Please note the following:
> Give preference to car washes that use
cloth or soft brushes in order to avoid paint
damage.
> Wheels and tires must not be damaged by
transport devices.
> Fold in exterior mirror, refer to page 55; oth-
erwise, they can be damaged due to the
width of the vehicle.
> Deactivate the rain sensor, refer to page 73,
to prevent undesired wiper operation.
> Remove additional add-on parts, e.g. spoil-
ers or phone antennas, if they could be
damaged.
> Unscrew the rod antenna.
> Leave the remote control in the ignition
lock.
Avoid car washes with guide rail heights
over 4 in/10 cm, otherwise there is
danger of damaging chassis parts. <
Convertible: retractable hardtop
Proceed as you would in a normal car wash.
When you open a wet hardtop, water
drops may run into the trunk. If necessary,
remove items from the trunk beforehand to
avoid water stains or soiling. <

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MobilityCare
Use BMW Premium Leather Care since dirt and
grease will otherwise slowly affect the protec-
tive layer of the leather.
Suitable care products are available at your
BMW center.
Upholstery care
Regularly vacuum with a vacuum cleaner.
To remove severe spots such as beverage
stains, use a soft sponge or lint-free microfiber
cloth and suitable interior cleaners.
Clean the upholstery down to the seams using a
sweeping motion. Avoid strong rubbing.
Opened Velcro fasteners on pants or
other articles of clothing can damage the
seat covers. Ensure that Velcro fasteners are
closed. <
Care of special parts
Light-alloy wheels
When cleaning on the vehicle, use only neutral
rim cleaner with a pH value of 5 to 9. Do not use
coarse cleansers and do not use steam clean-
ers at temperatures greater than 140 7/60 6.
Follow manufacturer's instructions.
Aggressive, acid-containin g, or strongly alka-
line cleaning agents can destroy the protective
coating of nearby components such as the
brake discs.
Chrome look surfaces
Carefully clean vehicle parts such as the radia-
tor grill or door handles with copious quantities
of water and possibly a shampoo additive, par-
ticularly when roads are treated with deicing
salt.
Rubber parts
Treat only with water or rubber care products.
Do not use silicon-contain ing care products on
rubber seals; otherwise, noise and damage
could occur.
Fine wood parts
Clean fine wood trim and fine wood parts only
with a damp cloth. Wipe dry with a soft cloth.
Plastic parts
These include:
> Imitation leather surfaces
> Roofliner
> Lamp glasses
> Display pane of instrument cluster
> Parts spray painted matte black
> Painted parts in the passenger
compartment
Use a microfibre cloth for cleaning.
Moisten the cloth slightly with water.
Do not soak the roofliner.
Do not use any cleaners that contain alco-
hol or solvents such as lacquer thinner,
cold cleaning agents, fuel, and the like; other-
wise, you may damage the surfaces. <
Safety belts
Dirty belt straps impede the reeling action and
thus have a negative impact on safety.
Do not clean chemically, as this may
destroy the webbing. <
Only clean with a mild soap solution in the
installed state.
Only reel in seat be lts when they are dry.
Carpet and floor mats
Keep floor mats, carpet, and other objects
out of the movement range of the pedals;
otherwise, they may inhi bit the function of the
pedals during driving.
Do not place additional floor mats onto an
existing one or onto other objects.
Only use floor mats that have been approved for
the vehicle and can be appropriately fastened.
Make sure that the floo r mats are securely fas-
tened again after they ha ve been removed, e.g.
for cleaning. <

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