tires BMW 228I 2014 User Guide

LoadingVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐
ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
Hints Overloading the vehicle
To avoid exceeding the approved carry‐
ing capacity of the tires, never overload the ve‐
hicle. Overloading can lead to overheating and
increases the rate at which damage develops
inside the tires. This could result in a sudden
loss of tire inflation pressure.◀
No fluids in the trunk
Make sure that fluids do not leak into the
trunk; otherwise, the vehicle may be dam‐
aged.◀
Securing cargo
Always position and secure the cargo as
described above; otherwise, it can endanger
the car's occupants if sudden braking or
swerving becomes necessary.
Heavy or hard objects should not be carried
loose inside the car; otherwise, they could be
thrown around as a result of hard braking, sud‐
den swerves, etc., and endanger the occu‐
pants.◀
Determining the load limit1.Locate the following statement on your ve‐
hicle’s placard:▷The combined weight of occupants
and cargo should never exceed XXX kg
or YYY lbs. Otherwise, damage to the
vehicle and unstable driving situations
may result.2.Determine the combined weight of the
driver and passengers that will be riding in
your vehicle.3.Subtract the combined weight of the driver
and passengers from XXX kilograms or
YYY pounds.4.The resulting figure equals the available
amount of cargo and luggage load ca‐
pacity.
For example, if the YYY amount equals
1,000 lbs and there will be four 150 lbs
passengers in your vehicle, the amount of
available cargo and luggage load capacity
is 400 lbs: 1,000 lbs minus 600 lbs =
400 lbs.5.Determine the combined weight of lug‐
gage and cargo being loaded on the vehi‐
cle. That weight may not safely exceed the
available cargo and luggage load capacity
calculated in Step 4.Seite 151LoadingDriving tips151
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Saving fuelVehicle equipmentAll standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐
ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
General information Your vehicle contains advanced technology for
the reduction of fuel consumption and emis‐
sions.
Fuel consumption depends on a number of dif‐
ferent factors.
The implementation of certain measures, driv‐
ing style and regular maintenance can have an
influence on fuel consumption and on the envi‐
ronmental impact.
Remove unnecessary cargoAdditional weight increases fuel consumption.
Remove attached parts
following use
Remove auxiliary mirrors, roof or rear luggage
racks which are no longer required following
use.
Attached parts on the vehicle impair the aero‐
dynamics and increase the fuel consumption.Close the windows and glass
sunroof
Driving with the glass sunroof and windows
open results in increased air resistance and
thereby reduces the range.
Tires
General information Tires can affect fuel consumption values in
various ways, for instance fuel consumption
can be influenced by the size of the tires.
Check the tire inflation pressure
regularly
Check and, if necessary, correct the tire infla‐
tion pressure at least twice a month and before
starting on a long trip.
Low tire inflation pressure increases rolling re‐
sistance and thus raises fuel consumption and
tire wear.
Drive away immediately
Do not wait for the engine to warm-up while
the vehicle remains stationary. Start driving
right away, but at moderate engine speeds.
This is the fastest way for the cold engine to
reach its operating temperature.
Look well ahead when
driving
Avoid unnecessary acceleration and braking.
By maintaining a suitable distance to the vehi‐
cle driving ahead of you.
Driving smoothly and looking ahead reduces
fuel consumption.Seite 154Driving tipsSaving fuel154
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Mobility
In order to always ensure your mobility, you will find important information on operating fluids,wheels and tires, maintenance and Roadside Assistance in the following.Online Edition for Part no. 01 40 2 924 974 - X/13

Wheels and tiresVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐
ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
Tire inflation pressure Safety information
The tire characteristics and tire inflation pres‐
sure influence the following:▷The service life of the tires.▷Road safety.▷Driving comfort.
Checking the pressure
Tires have a natural, consistent loss of pres‐
sure.
Check the tire inflation pressure regularly
Regularly check the tire inflation pres‐
sure, and correct it as needed: at least twice a
month and before a long trip. If you fail to ob‐
serve this precaution, you may be driving on
tires with incorrect tire pressures, a condition
that may not only compromise your vehicle's
driving stability, but also lead to tire damage
and the risk of an accident.◀
Tires heat up during driving, and the tire infla‐
tion pressure increases along with the temper‐
ature of the tire. The tire inflation pressure
specifications relate to cold tires or tires with
the ambient temperature.
Only check the tire inflation pressure when the
tires are cold. This means after driving no more
than 1.25 miles/2 km or when the vehicle has
been parked for at least 2 hours.
After correcting the tire inflation pressure:▷Reinitialize the Flat Tire Monitor.▷Reinitialize the Tire Pressure Monitor.
Pressure specifications The tire inflation pressure table, refer to
page 167, contains all pressure specifications
for the specified tire sizes at the ambient tem‐
perature. Pressure specifications apply to ap‐
proved tire sizes and recommended tire
brands. This information can be obtained from
your service center.
To identify the correct tire inflation pressure,
please note the following:
▷Tire sizes of your vehicle.▷Maximum permitted driving speed.
Tire inflation pressures up to
100 mph/160 km/h
For speeds of up to 100 mph/160 km/h and for
optimum driving comfort, note the pressure
values in the tire inflation pressure table, refer
to page 167, and adjust as necessary.
These pressure values can also be found on
the tire inflation pressure label on the driver's
door pillar.
Seite 166MobilityWheels and tires166
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Maximum permissible speed
Do not exceed 100 mph/160 km/h; other‐
wise, tire damage and accidents may result.◀
Tire inflation pressure values up to
100 mph/160 km/h
228iTire sizePressure specifications in
bar/PSISpecifications in
bar/PSI with cold
tires225/45 R 17 91 H
M+S RSC2.2 / 322.2 / 32205/50 R 17 89
V M+S A/S RSC
205/50 R 17 89 H
M+S RSC
225/40 R 18 92 V
M+S XL RSC
225/40 R 18 92 V
M+S XL A/S RSC2.2 / 322.5 / 36Front: 225/45
R 17 91 W RSC
Rear: 245/40 R 17
91 W RSC2.2 / 32
--
2.2 / 32Front: 225/40
R 18 88 Y RSC
Rear: 245/35 R 18
88 Y RSC2.2 / 32
--
2.6 / 38Tire sizePressure specifications in
bar/PSIFront: 225/35
R 19 88 Y XL RSC
Rear: 245/30 R 19
89 Y XL RSC2.5 / 36
--
2.8/41Compact wheel
T 125/80 R 17 99
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
M235i
Tire sizePressure specifications in
bar/PSISpecifications in
bar/PSI with cold
tires225/40 R 18 92 V
M+S XL A/S RSC
205/50 R 17 89 H
M+S RSC
225/45 R 17 91 H
M+S RSC
225/40 R 18 92 V
M+S XL RSC2.2 / 322.6 / 38Front: 225/40 R
18 88 Y Std
Rear: 245/35 R 18
92 Y Std2.2 / 32
--
2.6 / 38Front: 225/40
R 18 88 Y RSC
Rear: 245/35 R 18
88 Y RSC2.2 / 32
--
2.6 / 38Seite 167Wheels and tiresMobility167
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Tire sizePressure specifications in
bar/PSIFront: 225/35
R 19 88 Y XL RSC
Rear: 245/30 R 19
89 Y XL RSC2.5 / 36
--
2.8 / 41Compact wheel
T 125/80 R 17 99
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
Tire inflation pressures at max.
speeds above 100 mph/160 km/h
Speeds above 100 mph/160 km/h
In order to drive at maximum speeds in
excess of 100 mph/160 km/h, please observe,
and, if necessary, adjust tire pressures for
speeds exceeding 100 mph/160 km/h from the
relevant table on the following pages. Other‐
wise tire damage and accidents could occur.◀
Tire inflation pressure values over
100 mph/160 km/h
228i
Without high-speed tuning feature
Tire sizePressure specifications in
bar/PSISpecifications in
bar/PSI with cold
tires225/45 R 17 91 H
M+S RSC2.2 / 322.6 / 38Tire sizePressure specifications in
bar/PSI205/50 R 17 89
V M+S A/S RSC
225/40 R 18 92 V
M+S XL A/S RSC
205/50 R 17 89 H
M+S RSC
225/40 R 18 92 V
M+S XL RSC2.4 / 352.8 / 41Front: 225/45
R 17 91 W RSC
Rear: 245/40 R 17
91 W RSC2.2 / 32
--
2.4 / 35Front: 225/40
R 18 88 Y RSC
Rear: 245/35 R 18
88 Y RSC2.2 / 32
--
2.6 / 38Front: 225/35
R 19 88 Y XL RSC
Rear: 245/30 R 19
89 Y XL RSC2.5 / 36
--
2.8/41Compact wheel
T 125/80 R 17 99
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
With high-speed tuning feature
Tire sizePressure specifications in
bar/PSISpecifications in
bar/PSI with cold
tires225/45 R 17 91
H M+S RSC2.5 / 362.9 /42Seite 168MobilityWheels and tires168
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Tire sizePressure specifications in
bar/PSI205/50 R 17 89
H M+S RSC
225/40 R 18 92
V M+S XL RSC2.6 / 383.1 / 45Front: 225/45
R 17 91 W RSC
Rear: 245/40
R 17 91 W RSC2.5 / 36
--
3.0 /44Front: 225/40
R 18 88 Y RSC
Rear: 245/35
R 18 88 Y RSC2.4 / 35
--
2.9 /42Front: 225/35
R 19 88 Y XL
RSC
Rear: 245/30
R 19 89 Y XL
RSC2.8 / 41
--
3.2/ 46Compact wheel
T 125/80 R 17
99 MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
M235i Without high-speed tuning feature
Tire sizePressure specifications in
bar/PSISpecifications in
bar/PSI with cold
tires225/40 R 18 92 V
M+S XL A/S RSC
205/50 R 17 89 H
M+S RSC
225/45 R 17 91 H
M+S RSC
225/40 R 18 92 V
M+S XL RSC2.5 / 362.8 / 41Front: 225/40 R
18 88 Y Std
Rear: 245/35 R 18
92 Y Std2.2 / 32
--
2.6 / 38Front: 225/40
R 18 88 Y RSC
Rear: 245/35 R 18
88 Y RSC2.2 / 32
--
2.6 / 38Front: 225/35
R 19 88 Y XL RSC
Rear: 245/30 R 19
89 Y XL RSC2.5 / 36
--
2.8/ 41Compact wheel
T 125/80 R 17 99
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
With high-speed tuning feature
Seite 169Wheels and tiresMobility169
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Tire sizePressure specifications in
bar/PSISpecifications in
bar/PSI with cold
tires205/50 R 17 89 H
M+S RSC
225/45 R 17 91 H
M+S RSC
225/40 R 18 92 V
M+S XL RSC2.7 / 393.1 / 45Front: 225/40 R
18 88 Y Std
Rear: 245/35 R
18 92 Y Std2.5 / 36
--
2.9 / 42Front: 225/40
R 18 88 Y RSC
Rear: 245/35
R 18 88 Y RSC2.5 / 36
--
2.9 / 42Front: 225/35
R 19 88 Y XL
RSC
Rear: 245/30
R 19 89 Y XL
RSC2.9 /42
--
3.2/ 46Compact wheel
T 125/80 R 17 99
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
Tire identification marks
Tire size 245/45 R 18 96 Y
245: nominal width in mm
45: aspect ratio in %
R: radial tire code
18: rim diameter in inches
96: load rating, not for ZR tires
Y: speed rating, before the R on ZR tires
Speed letter
Q = up to 100 mph, 160 km/h
R = up to 106 mph, 170 km/h
S = up to 112 mph, 180 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
DOT code: DOT xxxx xxx 1013
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
1013: tire age
Tires with DOT codes meet the guidelines of
the U.S. Department of Transportation.
Tire age
DOT … 1013: the tire was manufactured in the
10th week 2013.
Recommendation
Regardless of wear, replace tires at least every
6 years.
Uniform Tire Quality GradingQuality grades can be found where applicable
on the tire sidewall between tread shoulder
and maximum section width.
For example: Treadwear 200; Traction AA;
Temperature A
DOT Quality Grades Treadwear
Traction AA A B C
Temperature A B CSeite 170MobilityWheels and tires170
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All passenger car tires must conform to Fed‐
eral Safety Requirements in addition to these
grades.
TreadwearThe treadwear 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 g,
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, however, and may depart signifi‐
cantly from the norm due to variations in driv‐
ing 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 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 include acceleration, cornering,
hydroplaning, or peak traction characteristics.
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.
Sustained high temperature can cause the ma‐
terial 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
Vehicle Safety Standard No. 109. Grades Band
A represent higher levels of performance onthe laboratory test wheel than the minimum re‐
quired by law.
Temperature grade for this tire
The temperature grade for this tire is es‐
tablished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla‐
tion, or excessive loading, either separately or
in combination, can cause heat buildup and
possible tire failure.
If necessary, have the vehicle towed.◀
RSC – Run-flat tires
Run-flat tires, refer to page 174, are labeled
with a circular symbol containing the letters
RSC marked on the sidewall.
M+S
Winter and all-season tires with better cold
weather performance than summer tires.
Tire tread
Summer tires Do not drive with a tire tread depth of less than
0.12 in/3 mm.
There is an increased danger of hydroplaning if
the tread depth is less than 0.12 in/3 mm.
Winter tires
Do not drive with a tire tread depth of less than
0.16 in/4 mm.
Below a tread depth of 0.16 in/4 mm, tires are
less suitable for winter operation.Seite 171Wheels and tiresMobility171
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Minimum tread depth
Wear indicators are distributed around the
tire's circumference and have the legally re‐
quired minimum height of 0.063 in/1.6 mm.
They are marked on the side of the tire with
TWI, Tread Wear Indicator.
Tire damage
General information
Inspect your tires often for damage, foreign
objects lodged in the tread, and tread wear.
Notes
Driving over rough or damaged road surfaces,
as well as debris, curbs and other obstacles can cause serious damage to wheels, tires and
suspension parts. This is more likely to occur
with low-profile tires, which provide less cush‐
ioning between the wheel and the road. Be
careful to avoid road hazards and reduce your
speed, especially if your vehicle is equipped
with low-profile tires.
Indications of tire damage or other vehicle de‐
fects:
▷Unusual vibrations during driving.▷Unusual handling such as a strong ten‐
dency to pull to the left or right.
Damage can, e. g., be caused by driving over
curbs, road damage, or similar things.
In case of tire damage
If there are indications of tire damage, re‐
duce your speed immediately and have the
wheels and tires checked right away; other‐
wise, there is the increased risk of an accident.
Drive carefully to the nearest service center.
Have the vehicle towed or transported there.
Otherwise, tire damage can become life threat‐
ening for vehicle occupants and also other
road users.◀
Repair of tire damage
For safety reasons, the manufacturer of
your vehicle recommends that you do not have
damaged tires repaired; they should be re‐
placed. Otherwise, damage can occur as a re‐
sult.◀
Changing wheels and tires
Mounting Information on mounting tires
Have mounting and balancing performed
only by a service center.
If this work is not carried out properly, there is
the danger of subsequent damage and related
safety hazards.◀
Wheel and tire combination
You can ask the service center about the right
wheel/tire combination and wheel rim versions
for the vehicle.
Incorrect wheel and tire combinations impair
the function of a variety of systems such as
ABS or DSC.
To maintain good handling and vehicle re‐
sponse, use only tires with a single tread con‐
figuration from a single manufacturer.
Following tire damage, have the original wheel
and tire combination remounted on the vehicle
as soon as possible.Seite 172MobilityWheels and tires172
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