2012 MINI Countryman Owner's Manual

MOBILITYWheels and tires
136
Wheels and tires
Vehicle equipment
In this chapter, all production, country, and
optional equipment that is offered in the model
range is described. Equipment is also described
that is not available because of, for example,
selected options or coun try version. This also
applies to safety relate d functions and systems.
Tire inflation pressures
Information for your safety
It is not merely the tire s' 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.
Checking pressure
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 precauti on you may be driving
on tires with incorrect ti re pressures, a condition
that can not only compromise your vehicle's
driving stability, but also l e a d t o t i r e d a m a g e a n d
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.
Att empt s to drive o n a flat t ire can lead to lo ss of
control over the vehicle. <
Check the tire inflation pressures only on cold
tires. This means after a maximum of 1.25 miles/
2 km driving or when the vehicle has been
parked for at least 2 hou rs. When tires are warm,
the tire inflation pressure is higher.
After adjusting the tire inflation pressure,
reinitialize the Flat Tire Monitor, page 68,
or reset the Tire Pressure Monitor, page 70.<
Pressure specifications
The tables below provide all the correct inflation
pressures for the specified tire sizes at ambient
temperature.
The tire inflation pressures apply to the
tire sizes approved and the tire brands
recommended by the manufacturer of your
MINI. Your MINI dealer will be glad to advise
you. <
For correct identification of the right tire infla-
tion pressures, ob serve the following:
> Tire sizes for your vehicle
> 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 follo wing pages in the col-
umns for traveling speeds up to a maximum of
100 mph or 160 km/h.
These tire inflation pre ssures can also be found
on the driver's side door pillar when the driver's
door is open.
The maximum permitted speed for these
tire inflation pressures is 100 mph or
160 km/h. Do not exceed this speed; otherwise,
tire damage and accidents may occur. <
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Wheels and tiresMOBILITY
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Tire inflation pressures for driving above
100 mph or 160 km/h
In order to drive at maximum speeds in
excess of 100mph or 160km/h, adjust
pressures to the respective tire inflation pres-
sures listed on the foll owing 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 law could
occur.
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MOBILITYWheels and tires
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Tire inflation pressures MINI Cooper Countryman
Tire size Tire pressures in bar/psi
Speeds up to a max. of 100 mph/160 km/h Speeds including those
exceeding
100 mph/160 km/h
All pressure specifications in the
table are indicated in bar/psi for
cold tires. Cold = ambient
temperature
195/60 R 16 89 H M+S
205/55 R 17 91 H M+S
205/55 R 17 91 H M+S RSC
205/55 R 17 91 V RSC
225/45 R 18 91 V RSC
225/40 R 19 89 V RSC 2.2/32 2.2/32 2.4/35 2.4/35
More details on the permissible load and weights can be found on page186.
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Tire inflation pressures MINI Cooper S Countryman / Cooper S ALL4 Countryman
Tire size Tire pressures in bar/psi
Speeds up to a max. of 100 mph/160 km/h Speeds including those
exceeding
100 mph/160 km/h
All pressure specifications in the
table are indicated in bar/psi for
cold tires. Cold = ambient
temperature
195/60 R 16 89 H M+S
205/55 R 17 91 H M+S
205/55 R 17 91 H M+S RSC
205/55 R 17 91 V RSC
225/45 R 18 91 V RSC
225/40 R 19 89 V RSC 2.2/32 2.2/32 2.6/38 2.6/38
More details on the perm issible load and weights can be found on page 186.
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MOBILITYWheels and tires
140
MINI Countryman John Cooper Works tire inflation pressures
Tire size Tire pressures in bar/psi
Speeds up to a max. of 100 mph/160 km/h Speeds including those
exceeding
100 mph/160 km/h
All pressure specifications in the
table are indicated in bar/psi for
cold tires. Cold = ambient
temperature
195/60 R 16 89 H M+S Std
205/55 R 17 91 H M+S RSC
205/55 R 17 91 H M+S A/S RSC
225/45 R 18 91 V RSC
225/40 R 19 89 V RSC 2.4/35 2.4/35 2.6/38 2.6/38
More details on the permissible load and weights can be found on page186.
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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 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
US Department of Transportation.
DOT code:
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 (1 γ) 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 si gnificantly from the
norm due to variations in driving habits, service
practices and differences in road characteristics
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 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 incl ude acceleration, corner-
ing, hydroplaning, or peak traction characteris-
tics. <
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 labo ratory test wheel. Sus-
tained high temperature can cause the material
of the tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire
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,
(before the R on ZR tires)
225/45 R 17 91 V
For instance:
Manufacturer's code
for tire make
tire size and
tire design
Tire ageDOT xxxx xxx 1012
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MOBILITYWheels and tires
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failure. The grade C corresponds to a level of
performance which all pa ssenger car tires must
meet under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A represent lev-
els of performance on the laboratory test wheel
that exceed 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
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, page 143.
M+S
Winter and all-season tires.
These have better winter properties than sum-
mer tires.
XL
Designation for specia lly reinforced tires.
Tire condition
Inspect your tires regula rly for tread wear, signs
of damage and for foreign objects lodged in the
tread. Check the tread depth.
Tread depth
The tread depth should not drop below 0.12 in/
3 mm, although, for exam ple, 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.
Winter tires
When winter tires wear down past a tread depth
of 0.16 in/4 mm, they become perceptibly less suitable for winter condit
ions. In the interest of
safety, new tires should be installed.
Minimum tread depth
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. If the tire tread has been
driven down to the wear indicators, a tread
depth of 0.063 in/1.6 mm has been reached.
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 the road. Be careful to
avoid road hazards and reduce your speed,
especially if your vehi cle is equipped with low-
profile tires.
Unusual vibrations encountered during normal
vehicle operation can indi cate tire failure or
some other vehicle defect . This can, for exam-
ple, be caused by drivin g 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 immediately
and have wheels and tires thoroughly
checked. To do so, drive carefully to the nearest
MINI dealer or a specialized tire shop that has
specially trained personnel working in accor-
dance with the specifications of the MINI manu-
facturer. If necessary, have the vehicle towed
there.
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Otherwise, tire damage can be extremely dan-
gerous for vehicle occupants and other road
users.<
Tire age
The manufacturing date of tires is contained in
the tire coding:
DOT ... 1012 means that the tire was manufac-
tured during the 10th week of 2012.
For various reasons, such as the development of
brittleness, the manufacturer of your MINI rec-
ommends tire replacemen t after no more than
6 years, regardless of th e actual wear of the
tires.
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 reinforcement
in the sidewalls ensures that the tire can con-
tinue to be used subject to certain restrictions,
even if depressurized.
For information on continuing to drive with a flat
tire, refer to Indication of a flat tire, page69.
New wheels and tires
Have new wheels and tires mounted only
by your MINI dealer or a specialized tire
shop that has specially trained personnel work-
ing in accordance with th e specifications of the
MINI manufacturer. If this work is not carried out properly, there is a danger of subsequent dam-
age and related safety ha
zards. Make sure that
the new wheels are balanced. <
Retreaded tires
The manufacturer of your MINI recom-
mends that you avoid using retreaded
tires, as this could impair driving safety. The
causes for this include potentially different tire
casing structures and of ten wide variations in
tire age, which can result in a limited service
life.<
Correct wheels and tires
The manufacturer of your MINI recom-
mends mounting only wheels and tires
that it has specifically approved for use on your
particular model. Alth ough other wheels and
tires may theoretically have the same dimen-
sions, variations in factors such as manufactur-
ing tolerances can result in contact between tire
and bodywork, ultimately leading to serious
accidents. The manufactur er of your MINI can-
not evaluate non-approved wheels and tires to
determine if they are su ited for use, and there-
fore cannot ensure the operating safety of the
vehicle if they are mounted. <
Your MINI dealer will be glad to inform you
about the correct wheel an d tire combination for
your vehicle.
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.
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
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