Get Mobility -> Wheels and tires Guide for BMW M3 4 Door Sixth Generation (2015-2025)

Mobility

Wheels and tires

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.

Vehicle features and options

This chapter describes all standard, country-

specific and optional features offered with the

series. It also describes features that are not

necessarily available in your car, e. g., due to

the selected options or country versions. This

also applies to safety-related functions and

systems. The respectively applicable country

provisions must be observed when using the

respective features and systems.

The displays of inflation devices may under-

read by up to 1.45 psi/0.1 bar.

For Tire Pressure Monitor: after correcting the

tire inflation pressure, reset the Tire Pressure

Monitor.

Tire inflation pressure specifications

The tire inflation pressure table, refer to

page 173, contains all tire inflation pressure

specifications for the specified tire sizes at the

ambient temperature. Tire inflation pressure

specifications apply to approved tire sizes and

recommended tire brands. This information

can be obtained from your service center.

Tire inflation pressure

Safety information

The tire characteristics and tire inflation pres‐

sure influence the following:

▷

The service life of the tires.

Road safety.

To identify the correct tire inflation pressure,

please note the following:

Driving comfort.

▷

Tire sizes of your vehicle.

Maximum permitted driving speed.

Checking the tire inflation pressure

Check the tire inflation pressure regularly

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 173, and adjust as necessary.

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 have a natural, consistent loss of tire in‐

flation pressure.

Tires heat up while driving, and the tire infla‐

tion pressure increases along with the tire's

temperature. The tire inflation pressure speci‐

fications relate to cold tires or tires with the

ambient temperature.

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Wheels and tires

Mobility

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.◀

These pressure values can also be found on

the tire inflation pressure label on the driver's

door pillar.

Tire inflation pressure values over

100 mph/160 km/h

Maximum permissible speed

M3

Do not exceed 100 mph/160 km/h; other‐

wise, tire damage and accidents may result.◀

Tire size

Pressure specifications in

bar/PSI

Tire inflation pressure values up to

100 mph/160 km/h

Specifications in

bar/PSI with cold

tires

M3

Tire size

Pressure specifications in

bar/PSI

255/40 R 18 99 2.5 / 36

V M+S XL

2.8 / 40

3.2 / 46

Specifications in

bar/PSI with cold

tires

255/35 R 19 96 2.9 /42

V M+S XL

Front: 255/40 R 2.4 / 34

-

18 95 (Y)

-

2.4 / 34

255/40 R 18 99 2.2 / 31

V M+S XL

2.3 / 33

2.6 / 37

Rear: 275/40 R

18 99 (Y)

255/35 R 19 96 2.4 / 34

V M+S XL

Front: 255/35 R 2.4 / 34

19 92 (Y)

-

2.6 / 37

Front: 255/40 R 2.2 / 31

-

Rear: 275/35 R

19 100 (Y) XL

18 95 (Y)

-

2.2 / 31

Rear: 275/40 R

18 99 (Y)

Front: 255/35 R 2.2 / 31

-

Tire identification marks

19 92 (Y)

-

2.2 / 31

Tire size

245/45 R 18 96 Y

245: nominal width in mm

Rear: 275/35 R

19 100 (Y) XL

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Mobility

Wheels and tires

45: aspect ratio in %

R: radial tire code

DOT Quality Grades

Treadwear

18: rim diameter in inches

Traction AA A B C

Temperature A B C

96: load rating, not for ZR tires

Y: speed rating, before the R on ZR tires

All passenger car tires must conform to Fed‐

eral Safety Requirements in addition to these

grades.

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

Treadwear

The 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.

Tire Identification Number

DOT code: DOT xxxx xxx 0115

xxxx: manufacturer code for the tire brand

xxx: tire size and tire design

0115: tire age

Traction

The traction grades, from highest to lowest,

are AA, A, B, and C.

Tires with DOT codes meet the guidelines of

the U.S. Department of Transportation.

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.

Tire age

DOT … 0115: the tire was manufactured in the

1st week of 2015.

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.

Recommendation

Regardless of wear and tear, replace tires at

least every 6 years.

Uniform Tire Quality Grading

Temperature

Quality grades can be found where applicable

on the tire sidewall between tread shoulder

and maximum section width.

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

For example: Treadwear 200; Traction AA;

Temperature A

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Wheels and tires

Mobility

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 on

the laboratory test wheel than the minimum re‐

quired by law.

Minimum tread depth

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.

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.

If necessary, have the vehicle towed.◀

M+S

Winter and all-season tires with better cold

weather performance than summer tires.

Tire damage

General information

Inspect your tires often for damage, foreign

objects lodged in the tread, and tread wear.

Tire tread

Summer tires

Hints

Do not drive with a tire tread depth of less than

0.12 in/3 mm.

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.

There is an increased danger of hydroplaning if

the tire 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.

Indications of tire damage or other vehicle de‐

fects:

▷

Unusual vibrations while 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.

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Mobility

Wheels and tires

In case of tire damage

Approved wheels and tires

If there are indications of tire damage, re‐

duce your speed immediately and have the

rims and tires checked right away; otherwise,

there is the increased risk of an accident.

You should only use wheels and tires

that have been approved by the vehicle manu‐

facturer for your vehicle type; otherwise, e.g.,

despite having the same official size ratings,

variations can lead to chassis contact and with

it, the risk of severe accidents

Drive carefully to the nearest service center. If

necessary, have the vehicle towed or trans‐

ported there. Otherwise, tire damage can be‐

come life threatening for vehicle occupants

and also other traffic.◀

The manufacturer of your vehicle cannot eval‐

uate non-approved wheels and tires to deter‐

mine if they are suited for use, and therefore

cannot guarantee the operating safety of the

vehicle.◀

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.◀

Recommended tire brands

Changing wheels and tires

Mounting

Information on mounting tires

For each tire size, the manufacturer of your ve‐

hicle recommends certain tire brands. These

can be identified by a star on the tire sidewall.

Have mounting and balancing performed

only by a service center.

If work is not carried out properly, there is a

danger of subsequent damage and related

safety hazards.◀

With proper use, these tires meet the highest

standards for safety and handling.

Wheel and tire combination

New tires

You can ask the service center about the right

wheel/tire combination and wheel rim versions

for the vehicle.

Tire traction is not optimal due to manufactur‐

ing circumstances when tires are brand-new;

they achieve their full traction potential after a

break-in time.

Incorrect wheel and tire combinations impair

the function of a variety of systems such as

ABS or DSC.

Drive conservatively for the first

200 miles/300 km.

To maintain good handling and vehicle re‐

sponse, use only tires with a single tread con‐

figuration from a single manufacturer.

Retreaded tires

The manufacturer of your vehicle does not rec‐

ommend the use of retreaded tires.

Following tire damage, have the original wheel

and tire combination remounted on the vehicle

as soon as possible.

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Wheels and tires

Mobility

Retreaded tires

Mobility System

Possibly substantial variations in the de‐

sign and age of the tire casing structures can

limit service life and have a negative impact on

road safety.◀

The concept

With the Mobility System, minor tire damage

can be sealed quickly to enable continued

travel. To accomplish this, sealant is pumped

into the tires, which seals the damage from the

inside.

Winter tires

Winter tires are recommended for operating on

winter roads.

The compressor can be used to check the tire

inflation pressure.

Although so-called all-season M+S tires pro‐

vide better winter traction than summer tires,

they do not provide the same level of perform‐

ance as winter tires.

Hints

▷

Follow the instructions on using the Mobi‐

lity System found on the compressor and

sealant container.

Maximum speed of winter tires

▷

Use of the Mobility System may be ineffec‐

tive if the tire puncture measures approx.

1/8 in/4 mm or more.

If the maximum speed of the vehicle is higher

than the permissible speed for the winter tires,

then a respective symbol is displayed in your

field of vision. You can obtain this sign from the

tire specialist or from your service center.

▷

Contact the nearest service center if the

tire cannot be made drivable.

Maximum speed for winter tires

If possible, do not remove foreign bodies

that have penetrated the tire.

Do not exceed the maximum speed for

the respective winter tires; otherwise, tire dam‐

age and accidents can occur.◀

Pull the speed limit sticker off the sealant

container and apply it to the steering

wheel.

Rotating wheels between axles

▷

The use of a sealant can damage the TPM

wheel electronics. In this case, have the

electronics checked at the next opportu‐

nity and have them replaced if needed.

The manufacturer of your vehicle advises

against switching wheels between the front

and rear axles. This can impair the handling

characteristics.

Enclosed areas

Rotating the tires is not permissible on vehi‐

cles with different tire sizes or rim sizes on the

front and rear axles.

Do not let the engine run in enclosed

areas, since breathing in exhaust fumes may

lead to loss of consciousness and death. The

exhaust gases contain carbon monoxide, an

odorless and colorless but highly toxic gas.◀

Storage

Store wheels and tires in a cool, dry place with

as little exposure to light as possible.

Storage

Always protect tires against all contact with oil,

grease and fuels.

The Mobility System is located under the

cargo floor panel.

Do not exceed the maximum tire inflation pres‐

sure indicated on the side wall of the tire.

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Mobility

Wheels and tires

Sealing container

Filling the tire with sealant

1. Shake the sealing container.

▷

Sealing container, arrow 1.

Filling hose, arrow 2.

2. Pull the connection hose fully out of the

compressor housing. Do not kink the hose.

Observe use-by date on the sealant container.

Compressor

3. Screw the connection hose onto the con‐

nector of the sealant container.

1

2

3

4

5

6

7

Holder for bottle

Compressor

Connector/cable for socket

Connection hose

On/off reel

Inflation pressure dial

Reduce inflation pressure

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Wheels and tires

Mobility

4. Insert the sealant container on the com‐

pressor housing in an upright position.

7. With the ignition turned on or the engine

running, reel on the compressor.

Switch off the compressor after 10 mi‐

nutes

5. Screw the filling hose of the sealant con‐

tainer onto the tire valve of the defective

wheel.

Do not allow the compressor to run longer than

10 minutes; otherwise, the device will overheat

and may be damaged.◀

Let the compressor run for approx. 3 to 8 mi‐

nutes to fill the tire with sealant and achieve a

tire inflation pressure of approx. 2.5 bar.

While the tire is being filled with sealant, the

tire inflation pressure may sporadically reach

approx. 5 bar. Do not reel off the compressor at

this point.

6. With the compressor switched off, insert

the plug into the power socket inside the

vehicle.

If a tire inflation pressure of 2 bar is not

reached:

1. Switch off the compressor.

2. Unscrew the filling hose from the wheel.

3. Drive 33 ft/10 m forward and back to dis‐

tribute the sealant in the tire.

4. Inflate the tire again using the compressor.

If a tire inflation pressure of 2 bar cannot be

reached, contact your service center.

Stowing the Mobility System

1. Unscrew the filling hose of the sealant con‐

tainer from the wheel.

2. Unscrew the connection hose of the com‐

pressor from the sealant container.

3. Connect the filling hose of the sealant con‐

tainer previously connected to the tire

valve with the available connector on the

sealant container.

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Mobility

Wheels and tires

This prevents leftover sealant from escap‐

ing from the container.

Snow chains

4. Wrap the empty sealant container in suita‐

ble material to avoid dirtying the cargo

area.

Fine-link snow chains

Only certain types of fine-link snow chains

have been tested by the manufacturer of the

vehicle, classified as road-safe and approved.

5. Stow the Mobility System back in the vehi‐

cle.

Information about the approved snow chains

are available from the service center.

Distributing the sealant

Immediately drive approx. 5 miles/10 km to en‐

sure that the sealant is evenly distributed in the

tire.

Use

Use only in pairs on the rear wheels, equipped

with the tires of the following size:

Do not exceed a speed of 50 mph/80 km/h.

▷

255/40 R 18

255/35 R 19

If possible, do not drive at speeds less than

12 mph/20 km/h.

Follow the snow chain manufacturer's instruc‐

tions.

To correct the tire inflation pressure

1. Stop at a suitable location.

Make sure that the snow chains are always

sufficiently tight. Retighten as needed accord‐

ing to the chain manufacturer's instructions.

2. Screw the connection hose of the com‐

pressor directly onto the tire valve stem.

Do not initialize the Tire Pressure Monitor after

mounting snow chains, as doing so may result

in incorrect readings.

3. Insert the connector into the power socket

inside the vehicle.

4. Correct the tire inflation pressure to

2.5 bar.

When driving with snow chains, if needed

briefly activate M Dynamic Mode.

▷

Increase pressure: with the ignition

turned on or the engine running, reel

on the compressor.

Maximum speed with snow chains

Do not exceed a speed of 30 mph/50 km/h

when using snow chains.

▷

To reduce the pressure: press the but‐

ton on the compressor.

Continuing the trip

Do not exceed the maximum permissible

speed of 50 mph/80 km/h.

Reinitialize the Tire Pressure Monitor.

Replace the defective tire and the sealant con‐

tainer of the Mobility System as soon as possi‐

ble.

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Mobility -> Wheels and tires for Your BMW M3 4 Door Sixth Generation (2015-2025)

Related Topics

Mobility