2009 MINI COOPER CONVERTIBLE Owners Manual

REFERENCEAT A GLANCE CONTROLS DRIVING TIPS MOBILITY
103
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
104
MINI Cooper tire inflation pressures
Tire size Pressure specifications in psi/kPa
Speeds up to a
max. of
100 mph /160 km/hSpeeds 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
175/65 R 15 84 T M+S
175/65 R 15 84 H M+S
175/65 R 15 84 H
175/60 R 16 82 H M+S RSC
195/55 R 16 87 H RSC
195/55 R 16 87 H M+S RSC
195/55 R 16 87 V M+S RSC
205/45 R 17 84 V M+S RSC
205/45 R 17 84 V RSC
205/45 R 17 84 V M+S RSC
205/40 R 18 82 W RSC33/230 33/230 33/230 33/230 38/260 38/260
Emergency wheel:
115/70 R 15 90 M60/420 60/420 – – 60/420 60/420
More details on the permissible load and weights can be found on page155.

REFERENCEAT A GLANCE CONTROLS DRIVING TIPS MOBILITY
105
MINI Cooper S tire inflation pressures
Tire size Pressure specifications in psi/kPa
Speeds up to a
max. of
100 mph /160 km/hSpeeds including those exceeding
100 mph / 160 km/h
All pressure specifications
in the table are indicated in
psi/kilopascal with cold
tires. Cold = ambient tem-
perature
195/55 R 16 87 V RSC
195/55 R 16 87 H M+S RSC
195/55 R 16 87 V M+S RSC33/230 33/230 33/230 33/230 38/260 38/260
205/45 R 17 84 V M+S RSC
205/45 R 17 84 V RSC
205/40 R 18 82 W RSC
175/60 R 16 82 H M+S RSC38/260 38/260 38/260 38/260 41/280 41/280
More details on the permissible load and weights can be found on page155.

Wheels and tires
106
MINI John Cooper Works tire inflation pressures
Tire size Pressure specifications in psi/kPa
Speeds up to a
max. of
100 mph /160 km/hSpeeds 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
185/50 R 17 86 H M+S XL RSC
205/45 R 17 84 V M+S RSC
205/45 R 17 84 W RSC38/260 38/260 38/260 38/260 41/280 41/280
205/40 R 18 82 W RSC 41/280 41/280 41/280 41/280 44/300 44/300
More details on the permissible load and weights can be found on page155.

REFERENCEAT A GLANCE CONTROLS DRIVING TIPS MOBILITY
107
MINI Cooper Convertible tire inflation pressures
Tire size Pressure specifications in psi/kPa
Speeds up to a
max. of
100 mph /160 km/hSpeeds 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
175/65 R 15 84 T M+S
175/65 R 15 84 H
175/60 R 16 82 H M+S RSC
195/55 R 16 87 H RSC
195/55 R 16 87 H M+S RSC
205/45 R 17 84 V RSC
205/40 R 18 82 W RSC35/240 35/240 35/240 35/240 38/260 38/260
Emergency wheel:
115/70 R 15 90 M60/420 60/420 – – 60/420 60/420
More details on the permissible load and weights can be found on page155.

Wheels and tires
108
MINI Cooper S Convertible tire inflation pressures
Tire size Pressure specifications in psi/kPa
Speeds up to a
max. of
100 mph /160 km/hSpeeds 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
195/55 R 16 87 V RSC
195/55 R 16 87 H M+S RSC
195/55 R 16 87 V M+S RSC35/240 35/240 35/240 35/240 38/260 38/260
205/45 R 17 84 V M+S RSC
205/45 R 17 84 V RSC
205/40 R 18 82 W RSC
175/60 R 16 82 H M+S RSC39/270 39/270 39/270 39/270 42/290 42/290
More details on the permissible load and weights can be found on page155.

REFERENCEAT A GLANCE CONTROLS DRIVING TIPS MOBILITY
109
Tire coding
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:
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 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 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, 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 laboratory 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
failure. The grade C corresponds to a level of
performance which all passenger car tires must
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 R 17 91 V
e.g.
Manufacturer's
code for tire make
Tire size and
tire design
Tire ageDOT xxxx xxx 5008

Wheels and tires
110
meet under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A represent
higher levels of performance on the laboratory
test wheel 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 excessive loading, either sep-
arately or in combination, 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, page111.
M+S
Winter and all-season tires.
These have better winter properties than sum-
mer tires.
XL
Designation for specially reinforced tires.
Tire condition
Inspect your tires regularly 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 1/8 in/
3 mm, although, for example, European legisla-
tion only specifies a minimum tread depth of
1/16 in/1.6 mm. At tread depths below 1/8 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 1/6 in/4 mm, they become perceptibly less
suitable for winter conditions. 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 the tire's circumference;
the letters TWI, for Tread Wear Indicator, on the
tire's sidewalls identify tires that incorporate
these wear indicators. When tire tread is worn
down to the level of the wear indicators, the
remaining tread depth is 1/16 in/1.6 mm.
Tire damage
Please note that low-profile tires cause wheels,
tires and suspension parts to be more suscepti-
ble to road hazard and consequential damages.
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 immediately
and have wheels and tires thoroughly
checked. To do so, drive carefully to the nearest
MINI Dealer or tire shop that works according to
MINI repair procedures with correspondingly
trained personnel. If necessary, have the vehicle
towed there.
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 ... 5008 means that the tire was manufac-
tured in week 50 of 2008.