Get MOBILITY -> Wheels and tires Guide for BMW M8 4 Door First Generation (2019-2025)

Wheels and tires

MOBILITY

Wheels and tires

Tire pressure specifications

Vehicle features and options

In the tire inflation pressure table

This chapter describes all standard, country-

specific, and optional equipment offered with

the series. It also describes features and func-

tions that are not necessarily available in the

vehicle, e.g., due to the selected options or

country versions. This also applies to safety

functions and systems. When using these

functions and systems, the applicable laws

and regulations must be observed.

The tire inflation pressure table contains all tire

inflation pressure specifications for the speci-

fied tire sizes at the ambient temperature. The

tire inflation pressure values apply to tire sizes

recommended by the manufacturer of the ve-

hicle for the vehicle type.

To identify the correct tire inflation pressure,

please note the following:

▷

Tire sizes of the vehicle.

Maximum speed for driving.

Tire pressure

On the control display

The current tire inflation pressure values for

the mounted tires can be displayed on the con-

trol display.

General information

The tire condition and tire pressure influence

the following:

▷

The service life of the tires.

Driving safety.

The current tire inflation pressure value is lo-

cated on each tire.

Driving comfort.

Checking the tire pressure

Fuel consumption.

General information

Tires heat up while driving. The tire pressure

increases with the tire temperature.

Safety information

Warning

Tires have a natural, consistent tire pressure

loss.

A tire with too little or no tire inflation pres-

sure may heat up significantly and sustain

damage. This will have a negative impact

on aspects of handling such as steering and

braking response. There is a risk of accident,

injury, or property damage. Regularly check

the tire inflation pressure, and correct it as

needed, for instance twice a month and be-

fore a long trip.

The displays of inflation devices may under-

read by up to 0.1 bar/2 psi.

Checking using tire inflation pressure

specifications in the tire inflation

pressure table

1. Determine the intended tire inflation pres-

sure levels for the mounted tires.

2. Check the tire inflation pressure in all four

tires, using a pressure gage, for example.

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Wheels and tires

MOBILITY

3. Correct the tire inflation pressure if the ac-

tual tire inflation pressure deviates from the

intended tire inflation pressure.

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 and

adjust as necessary.

4. Check whether all valve caps are screwed

onto the tire valves.

The tire inflation pressure specifications in the

tire inflation pressure table only relate to cold

tires or tires at the same temperature as the

ambient temperature.

Only check the tire inflation pressure levels

when the tires are cold, i.e.:

▷

A distance traveled of max. 1.25 miles/2 km

has not been exceeded.

▷

If the vehicle has not moved again for at

least 2 hours after a trip.

These pressure values can also be found on

the tire pressure label on the driver's door pil-

lar.

Checking using the tire inflation

pressure specifications on the control

display

Do not exceed a speed of 100 mph/160 km/h.

1. "CAR"

2. "Vehicle status"

Tire pressure values up to

100 mph/160 km/h

3.

"Tire Pressure Monitor"

4. Check whether the current tire inflation

pressure levels deviate from the intended

tire pressure value.

M8 Convertible

Tire size

Pressure specifications in

bar/PSI

5. Correct the tire inflation pressure if the ac-

tual tire inflation pressure deviates from the

intended tire inflation pressure.

Specifications in

bar/PSI with

cold tires

The display of the current tire pressure may be

limited when the vehicle is stationary. After a

short drive, the tire pressure is updated.

265/40 R 19 102 2.3 / 33

V XL M+S

2.3 / 33

-

After correcting the tire pressure

For the flat tire monitor:

Front: 265/40 R 2.3 / 33

19 102 V XL

M+S

Reinitialize the Flat Tire Monitor.

With Tire Pressure Monitor:

The corrected tire inflation pressures are ap-

plied automatically. Make sure that the correct

tire settings have been made.

Rear: 285/40 R

19 107 V XL

M+S

-

2.3 / 33

With tires that cannot be found in the tire pres-

sure values on the control display, reset the

Tire Pressure Monitor (TPM).

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Wheels and tires

MOBILITY

Tire size

Pressure specifications in

bar/PSI

Tire size

Pressure specifications in

bar/PSI

Front: 275/40

ZR 19 105 Y XL

2.2 / 32

-

Front: 265/40 R 2.6 / 38

19 102 V XL

M+S

-

Rear: 285/40

ZR 19 107 Y XL

-

2.2 / 32

-

Rear: 285/40 R

19 107 V XL

M+S

-

2.6 / 38

Front: 275/35

ZR 20 102 Y XL

2.2 / 32

-

Front: 275/40

ZR 19 105 Y XL

2.5 / 36

-

Rear: 285/35

ZR 20 104 Y XL

2.2 / 32

Rear: 285/40

ZR 19 107 Y XL

-

2.5 / 36

-

Tire pressures, 100 mph/160 km/h

Front: 275/35

ZR 20 102 Y XL

2.4 / 35

-

Warning

Rear: 285/35

ZR 20 104 Y XL

2.5 / 36

When driving at speeds greater than

100 mph/160 km/h, incorrect tire pressures

can negatively affect vehicle handling, e.g.,

safety or comfort while driving. The tires can

become damaged, which may cause an ac-

cident. There is a risk of accident, injury,

or property damage. To drive at maximum

speeds, note the specified tire pressure for

driving above 100 mph/160 km/h in the tire

inflation pressure table, and adjust as neces-

sary.

With M Driver’s Package:

Tire size

Pressure specifications in

bar/PSI

Specifications in

bar/PSI with

cold tires

265/40 R 19 102 2.6 / 38

V XL M+S

2.7 / 39

-

Tire pressure values over

100 mph/160 km/h

Front: 265/40

R19 102 V XL

M+S

2.6 / 38

M8 Convertible

Without M Driver’s Package:

Rear: 285/40 R

19 107 V XL

M+S

-

2.6 / 38

Tire size

Pressure specifications in

bar/PSI

Specifications in

bar/PSI with

cold tires

Front: 275/40

ZR 19 105 Y XL

3.0 / 44

-

Rear: 285/40

ZR 19 107 Y XL

3.1 / 45

265/40 R 19 102 2.6 / 38

V XL M+S

2.7 / 39

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Wheels and tires

MOBILITY

Tire size

Pressure specifications in

bar/PSI

Designation Maximum speed

H

V

up to 131 mph/210 km/h

Front: 275/35

ZR 20 102 Y XL

3.0 / 44

-

up to 150 mph/240 km/h

up to 167 mph/270 km/h

up to 186 mph/300 km/h

above 186 mph/300 km/h

W

Y

Rear: 285/35

ZR 20 104 Y XL

-

3.1 / 45

(Y)

Tire marking

Tire Identification Number

DOT code: DOT xxxx xxx 0124

xxxx: manufacturer code for the tire brand

xxx: tire size and tire design

0124: tire age

Tire size

245/45 R 18 96 Y

245: nominal width in mm

45: cross-sectional relationship in %

R: radial tire code

Tires with DOT codes meet the guidelines of

the U.S. Department of Transportation.

18: rim diameter in inches

96: load index

Tire age

Y: speed code letter

Recommendation

Regardless of the tire tread depth, replace tires

at least every 6 years.

ZR tires: reinforced radial tire for speeds ex-

ceeding 150 mph/240 km/h

Maximum tire load

Maximum tire load is the maximum permissi-

ble weight for which the tire is approved.

Manufacture date

You can find the manufacture date of the tire

on the tire sidewall.

Locate the maximum tire load on the tire

sidewall and the Gross Axle Weight Rating –

GAWR – on the certification label on the driver

door B-pillar. Divide the tire load by 1.1. It must

be greater than one-half of the vehicle’s Gross

Axle Weight Rating – GAWR. Note, front vs.

rear GAWR and tire loads, respectively.

Designation

Manufacture date

DOT … 0124

1st week of 2024

Uniform Tire Quality Grading

Quality grades can be found where applicable

on the tire sidewall between tread shoulder

and maximum section width.

Speed letter

E.g.: Treadwear 200; Traction AA; Tempera-

ture A

Designation Maximum speed

Q

R

S

T

up to 100 mph/160 km/h

up to 106 mph/170 km/h

up to 112 mph/180 km/h

up to 118 mph/190 km/h

DOT Quality Grades

Treadwear

Traction AA A B C

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Wheels and tires

MOBILITY

Temperature A B C

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

required by law.

All passenger vehicle tires must conform to

Federal Safety Requirements in addition to

these grades.

Treadwear

Warning

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. E.g., 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, 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.

The temperature grade for this tire is estab-

lished 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.

M+S

Winter tires, as well as all-season tires with

better winter performance than summer tires,

can be identified by the M+S marking on the

tire side wall.

Traction

The traction grades, from highest to lowest,

are AA, A, B, and C.

Tire tread

Safety information

Warning

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 perform-

ance.

If the tire tread depth is too low, driving

safety may be impaired in critical situations

such as aquaplaning or slush on the road.

There is a risk of accident, injury, or property

damage. The tire tread depth may not fall

below 0.12 in/3 mm for summer tires and

0.16 in/4 mm for winter and all-season tires,

or observe the statutory regulations on mini-

mum tread depth.

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

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

322

Wheels and tires

MOBILITY

Minimum tread depth

Safety information

Warning

Damaged tires can lose tire inflation pres-

sure, which can lead to loss of vehicle control.

There is a risk of accident, injury, or property

damage. If tire damage is suspected while

driving, immediately reduce speed and stop.

Have wheels and tires checked. To do so,

drive carefully to an authorized service center

or another qualified service center or repair

shop. Have the vehicle towed or transported

as needed. Do not repair damaged tires, but

have them replaced.

Distributed over the tire circumference are

the tire manufacturer’s wear indicators with a

height of at least 0.06 in/1.6 mm, which serve

as an indicator of tire tread wear.

The positions of the wear indicators are

marked on the tire sidewall with TWI, Tread

Wear Indicator.

Warning

The wheels, tires and chassis components

can become damaged when driving over

curbs, road damage, or other obstacles.

Larger wheels have a smaller tire cross-sec-

tion. The smaller the tire cross-section, the

higher the risk of tire damage. There is a

risk of accident, injury, or property damage. If

possible, avoid driving over curbs, road dam-

age or other obstacles, or drive over them

slowly and carefully.

Tire damage

General information

Check your tires regularly for damage, foreign

objects lodged in the tread, and tread wear.

Indications of tire damage or other vehicle mal-

functions:

▷

Unusual vibrations.

Unusual tire or running noises.

Exchanging wheels and

tires

Unusual vehicle handling such as a strong

tendency to pull to the left or right.

▷

Uneven wear pattern, e.g., increased wear

in the area of the tire shoulder.

Mounting and wheel balancing

Have the wheel mounted and balanced by an

authorized service center or another qualified

service center or repair shop.

Damage can be caused by the following situa-

tions, for instance:

▷

Driving over curbs.

Road damage.

Suitable wheels and tires

Tire pressure too low.

Vehicle overloading.

Incorrect tire storage.

General information

Only certain wheel/tire combinations are suit-

able depending on vehicle and equipment.

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Wheels and tires

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The vehicle manufacturer determines wheel/

tire combinations on the basis of the following

criteria:

tire combination remounted on the vehicle as

soon as possible.

▷

Tire size, e.g., tire width, aspect ratio.

Wheel size, e.g., rim diameter, offset.

Recommended tire brands

For more information on wheel/tire combina-

tions and special equipment, contact an au-

thorized service center or another qualified

service center or repair shop.

Safety information

Warning

Wheels and tires that are not suitable for

the vehicle can damage parts of the vehicle.

There is a risk of accident, injury, or prop-

erty damage. The vehicle manufacturer rec-

ommends that you use only wheels and tires

that have been recommended for the vehicle

type.

Tire types are developed for each vehicle and

optimized specifically for the individual require-

ments of that vehicle, e.g.:

▷

Vehicle handling.

Comfort.

Noise characteristics.

Specially developed tires are marked with

a star on the tire sidewall. After replacing

wheels and tires, the vehicle manufacturer rec-

ommends using star-marked tires again. The

vehicle manufacturer recommends that you

use tires of the same make and tread design.

Warning

Mounted steel wheels can cause technical

problems, for instance unexpected loosening

of the lug bolts and damage to the brake

disks. There is a risk of accident, injury,

or property damage. Do not mount steel

wheels.

New tires

Tire traction is not optimal due to manufactur-

ing circumstances when tires are brand new.

Drive conservatively for the first

200 miles/300 km.

Warning

Wheel/tire combinations that are not suitable

for the vehicle can affect vehicle handling

and a number of system functions, e.g.,the

Antilock Braking System or Dynamic Stability

Control. There is a risk of accident, injury, or

property damage. The manufacturer of the

vehicle recommends that you use wheels and

tires that have been recommended by the

vehicle manufacturer for the vehicle type. Fol-

lowing tire damage, have the original wheel/

Retreaded tires

Warning

Retreated tires can have different tire casing

structures. With advanced age the service life

can be limited. There is a risk of accident,

injury, or property damage. The manufacturer

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Wheels and tires

MOBILITY

of the vehicle does not recommend the use of

retreaded tires.

All-season tires with the M+S designation, but

without icon with mountain and snowflake,

have better winter characteristics than summer

tires but generally do not achieve the perform-

ance of winter tires.

Maximum speed

Safety information

Wheel change between axles

Warning

If the maximum permissible speed of your

mounted tires is exceeded, the tires may be

damaged. There is a risk of accident, injury,

or property damage. Do not exceed the maxi-

mum permissible speed of the tires.

A wheel change between the axles on vehi-

cles with different tire sizes or rim sizes on

the front and rear axles can cause damage

to the tires and the vehicle. There is a risk of

accident, injury, or property damage. Do not

rotate the tires between the axles on vehicles

with different tire sizes or rim sizes on the

front and rear axles.

Maximum speed of winter tires

If the maximum speed of the vehicle is higher

than the permissible speed of the winter tires,

the maximum permissible speed must be indi-

cated with a sign placed in the field of vision.

The info label is available from an authorized

service center or another qualified service cen-

ter or repair shop.

Storing tires

Tire pressure

Do not exceed the maximum tire inflation pres-

sure indicated on the tire sidewall.

Winter tires

Storage

▷

Store wheels and tires in a cool, dry and

dark place.

General information

▷

Always protect tires against all contact with

oil, grease, and solvents.

▷

Do not leave tires in plastic bags.

Remove dirt from wheels or tires.

Repairing a flat tire

Safety precautions

Winter tires are recommended for operating on

winter roads.

▷

Park the vehicle as far away as possible

from passing traffic and on solid ground.

Winter tires can be identified by the icon with

mountain and snowflake, as well as the M+S

marking on the tire sidewall.

▷

Turn on the hazard warning system.

Secure the vehicle against rolling away by

setting the parking brake.

325

Wheels and tires

MOBILITY

▷

Turn the steering wheel until the front

wheels are in the straight-ahead position

and engage the steering wheel lock.

Sealant bottle and filler hose

Have all vehicle occupants get out and

make sure that they remain outside the

hazardous area such as behind a guardrail.

If necessary, set up a warning triangle at an

appropriate distance.

Tire repair set

1

Sealant bottle

2

3

4

5

Sealant bottle outlet

Filler hose

Principle

The tire repair set is used to temporarily seal

minor tire damage so that it is possible to con-

tinue driving.

Sealant bottle connection

Wheel valve connection

General information

Compressor

▷

The filled in tire sealant closes the damage

from the inside when it hardens.

▷

Follow the instructions for using the tire

repair set, which are provided on the com-

pressor and sealant bottle.

▷

The tire repair set may be insufficient if the

tire damage measures more than approx.

0.16 in/4 mm.

Do not remove foreign objects that have

penetrated the tire. Remove foreign objects

only when they are visibly protruding from

the tire.

1

Compressor

2

3

4

5

6

Tire pressure display

Sealant bottle mount

Pressure reducing valve button

Connector for socket

Power switch

▷

The compressor can be used to check the

tire inflation pressure.

Overview

Storage

Safety precautions

Depending on vehicle equipment, the tire re-

pair set is stored as follows:

▷

Park the vehicle as far away as possible

from passing traffic and on solid ground.

▷

In the cargo area under the cargo floor

panel.

▷

Turn on the hazard warning system.

Set the parking brake.

▷

In the cargo area on the left or right side.

In the cargo area behind a side trim panel.

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Wheels and tires

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▷

Turn the steering wheel until the front

wheels are in the straight-ahead position

and engage the steering wheel lock.

3. Connect the filler hose to the outlet of the

sealant bottle and turn clockwise by 90° to

the stop.

As soon as permitted by the traffic flow,

have all vehicle occupants get out and

make sure that they remain outside the

hazardous area such as behind a guardrail.

▷

If necessary, set up the hazard triangle or

hazard warning lights at an appropriate

distance.

Remove the warning label for the maximum

permissible speed from the sealant bottle

and attach it in the visible area in the vehi-

cle interior.

4. Unscrew the valve cap from the wheel and

screw the connecting piece of the filler hose

onto the valve.

Preparing the tire repair set

1. Insert the sealant bottle into the mount on

the housing of the compressor.

5. With the compressor switched off, insert the

connector into the power socket in the vehi-

cle interior.

2. Turn the sealant bottle clockwise by 90° to

the stop.

Filling the tire with sealing

compound

Safety information

DANGER

If the exhaust pipe is blocked or ventilation is

insufficient, harmful exhaust gases can pene-

trate the vehicle. The exhaust gases contain

pollutants which are colorless and odorless.

In enclosed areas, exhaust gases can also

accumulate outside of the vehicle. There is a

danger to life. Keep the exhaust pipe free and

ensure sufficient ventilation.

327

Wheels and tires

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NOTICE

3. Unscrew the valve cap.

4. Stow the tire repair set in the trunk.

The compressor can overheat during ex-

tended operation. There is a risk of damage

to property. Do not run the compressor for

more than 10 minutes.

5. Immediately drive 6 miles/10 km to ensure

that the tire sealant is evenly distributed in

the tire.

Do not exceed the permissible maximum

speed of 50 mph/80 km/h.

If possible, do not drive at speeds less than

12 mph/20 km/h.

Filling the tire with sealing compound

1. With standby state or drive-ready state

switched on, switch on the compressor.

Tire sealant may spray from the damaged

area during the initial wheel rotations.

Let the compressor run for max. 10 minutes

to fill in the tire sealant and reach a tire

pressure of 2.5 bar/36 psi.

Adjusting the tire pressure

1. Stop at a suitable location.

While the tire is being filled with tire sealant,

the tire pressure can briefly reach approx.

6 bar/87 psi. Do not turn off the compres-

sor in this phase.

2. Connect the hose directly to the compres-

sor and turn clockwise by 90° until it audi-

bly engages.

3. Unscrew the valve cap from the wheel and

screw the connecting piece of the hose

onto the valve.

2. Switch off the compressor.

Checking the tire pressure

Read the tire pressure on the tire pressure dis-

play of the compressor. The tire pressure must

be at least 2.5 bar/36 psi.

Tire pressure too high

If the tire pressure is too high, reduce the tire

pressure with the pressure reducing valve on

the compressor.

4. Insert the connector into the socket in the

vehicle interior.

Minimum tire inflation pressure is not

reached

5. Read the tire pressure on the tire pressure

display of the compressor.

Do not continue driving unless a minimum tire

pressure of 2.5 bar/36 psi is reached. Contact

an authorized service center or another quali-

fied service center or repair shop.

Do not continue driving unless a minimum

tire pressure of 1.3 bar/19 psi is displayed.

Contact an authorized service center or an-

other qualified service center or repair shop.

Minimum tire inflation pressure is

reached

6. Correct the tire pressure to 2.5 bar/36 psi.

1. Pull the connector out of the socket in the

vehicle interior.

▷

Increase tire pressure: with standby or

drive-ready state turned on, turn on the

2. Disconnect the hose from the sealant bottle

and the valve on the wheel.

328

Wheels and tires

MOBILITY

compressor and let it run for a maxi-

mum of 10 minutes.

Snow chains

Safety information

Warning

▷

Reduce tire pressure: press the pressure

reducing valve button on the compres-

sor.

Removing and stowing the tire

repair set

1. Switch off the compressor.

Mounting snow chains on unsuitable tires

can cause the snow chains to come into

contact with vehicle parts. There is a risk of

accident, injury, or property damage. Only

fit snow chains on tires recommended by

the vehicle manufacturer for use with snow

chains.

2. Pull the connector out of the socket in the

vehicle interior.

3. Disconnect the hose from the compressor

and the valve on the wheel.

4. Unscrew the valve cap.

5. Stow the tire repair set together with the

hose in the trunk.

Warning

Insufficiently tight snow chains may damage

tires and vehicle components. There is a risk

of accident, injury, or property damage. Make

sure that the snow chains are always suf-

ficiently tight. Re-tighten as needed accord-

ing to the snow chain manufacturer's instruc-

tions.

Continuing the trip

Do not exceed the permissible maximum

speed of 50 mph/80 km/h.

Do not exceed a maximum distance traveled of

125 miles/200 km.

Re-initialize the flat tire monitor or reset the

Tire Pressure Monitor.

Fine-link snow chains

Replace the faulty tire and the sealant bottle

from the tire repair set as soon as possible.

The manufacturer of the vehicle recommends

the use of fine-link snow chains. Certain types

of fine-link snow chains have been tested by

the manufacturer of the vehicle and recom-

mended as road-safe.

Additional information:

▷

Flat tire monitor, refer to page 336.

Tire pressure monitor, refer to page 330.

For information on suitable snow chains, con-

tact an authorized service center or another

qualified service center or repair shop.

System limits

If the tire cannot be made drivable, contact an

authorized service center or another qualified

service center or repair shop.

Use

Use only in pairs on the rear wheels, equipped

with the tires of the following size:

With the Tire Pressure Monitor: using sealant

can damage the wheel electronics. In this case,

have the electronics checked and replaced at

the next opportunity.

▷

265/40 R 19.

Information on the wheel size and rim offset is

located on the inside of the wheel.

The list can also include wheel/tire sizes that

are only suitable for certain models.

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Information on wheels and tires approved for

the vehicle can be requested from an author-

ized service center or another qualified service

center or repair shop.

Additional information:

Tire inflation pressure, refer to page 318.

Safety information

Follow the snow chain manufacturer's instruc-

tions.

Warning

Do not initialize the flat tire monitor after

mounting snow chains, as doing so may result

in incorrect readings.

The display of the target pressures is not

a substitute for the tire inflation pressure de-

tails on the vehicle. Incorrect entries in the

tire settings can lead to incorrect target tire

inflation pressure values. In this case, it can-

not be guaranteed that the notification of a

tire pressure loss will be reliable. There is a

risk of injury and risk of damage to property.

Make sure that the sizes of your mounted

tires are displayed correctly and match the

information on the tires and the tire inflation

pressure specifications on the vehicle.

Do not reset the Tire Pressure Monitor after

mounting snow chains, as doing so may result

in incorrect readings.

When driving with snow chains, if needed,

briefly activate M Dynamic Mode.

Maximum speed with snow chains

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

when using snow chains.

Functional requirements

The following prerequisites must be met for

the system; otherwise, reliable notification of a

tire pressure loss is not assured:

Tire pressure monitor

Principle

The Tire Pressure Monitor monitors the tire

pressure and issues a warning if the tire pres-

sure has dropped.

▷

Every time a tire or wheel is changed, the

correct details on the mounted tires must

be entered in the tire settings.

▷

The Tire Pressure Monitor does not acti-

vate until after driving for a few minutes:

General information

Sensors in the tire valves measure the tire in-

flation pressure and tire temperature.

▷

After a tire or wheel change.

After a reset, for tires with special ap-

proval.

Using the tire settings in iDrive, the system

can automatically compare the predefined tar-

get pressures with the actual tire inflation pres-

sures.

▷

After changing the tire setting.

▷

For tires with special approval:

If tires are being used that are not specified

in the tire inflation pressure details on the ve-

hicle such as tires with special approval, the

system needs to be actively reset. The system

will then take over the actual tire inflation pres-

sures as the target pressures.

▷

After a tire or wheel change, a reset was

performed with the correct tire inflation

pressure.

▷

After the tire inflation pressure was ad-

justed to a new value, a reset was per-

formed.

When operating the system, also note the in-

formation found in the Tire inflation pressure

chapter.

Wheels with wheel electronics.

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Tire settings

Status display

General information

Current status

The tire sizes of the mounted tires can be

gathered from the tire inflation pressure details

on the vehicle or directly on the tires.

The system status can be displayed on the

control display, e.g., whether or not the system

is active.

The tire details do not need to be re-entered

when the tire pressure is corrected.

1. "CAR"

2. "Vehicle status"

For summer and winter tires, the tire details

entered last are stored. After a tire or wheel

change, the settings of the tire sets used last

can be selected.

3.

"Tire Pressure Monitor"

The current status is displayed.

Current tire pressure

Changing settings

1. "CAR"

The current tire pressure is displayed for each

tire.

The current tire inflation pressures may

change while driving or depending on the out-

side temperature.

2. "Vehicle status"

3.

"Tire Pressure Monitor"

4. "Tire settings"

5. "Tire selection"

6. "Manual"

Current tire temperature

The current tire temperatures are displayed.

7. "Tire type"

The current tire temperatures may change

while driving or due to the outside tempera-

ture.

8. Select the tire type that is mounted on the

rear axle.

For tires with special approval:

"Other tires/raceway"

Tire conditions

Observe further proceeding in the perform

a reset section.

General information

Tire and system status are indicated by the

color of the wheels and a text message on the

control display.

9. Select the maximum road speed that will be

used with the tires.

10. "Save tire settings"

Any existing messages may not be deleted if

the nominal pressure is not reached after the

tire inflation pressure is corrected.

The measurement of the current tire inflation

pressure is started. The measurement prog-

ress is displayed.

All wheels green

▷

The system is active and bases warnings

on the target pressures.

▷

For tires with special approval: the system

is active and bases warnings on the tire

inflation pressures stored during the last re-

set.

331

Wheels and tires

MOBILITY

One to four yellow wheels

A flat tire or major tire pressure loss has occur-

red in the indicated tires.

Messages: for tires without special

approval

General information

When a flat tire is indicated, the Dynamic Sta-

bility Control may be turned on.

Gray wheels

It may not be possible to identify tire pressure

losses.

Safety information

Possible causes:

▷

Malfunction.

Warning

During tire inflation pressure measurement,

after confirmation of the tire settings.

A damaged regular tire with low or no tire

inflation pressure impacts handling such as

steering and braking response. There is a risk

of accident, injury, or property damage. Do

not continue driving. Repair the flat tire or re-

place the wheel.

▷

For tires with special approval: a reset is

performed for the system.

For tires with special approval:

performing a reset

1. "CAR"

If a tire inflation pressure check is

required

2. "Vehicle status"

3. "Tire Pressure Monitor"

4. Make sure that correct tire settings have

been made.

Message

An icon with a Check Control message appears

on the control display.

Tire settings, refer to page 331.

5. Turn on drive-ready state and do not drive

off.

Icon

Possible cause

Leak detected on the tire.

6. Reset tire pressure: "Perform reset".

7. Drive off.

Inflation was not carried out accord-

ing to specifications, for instance

when the tire has not been suffi-

ciently inflated or in the case of a nat-

ural steady tire pressure loss.

The wheels are displayed in gray and the fol-

lowing is displayed: "Resetting tire pressure…".

After a travel time of several minutes, the set

tire inflation pressures are accepted as the

predefined tire inflation pressures. The reset is

completed automatically while driving.

Measure

Check the tire pressure and correct as needed.

If the tire inflation pressure is too low

Message

After a successfully completed reset, the

wheels on the control display are shown in

green and the following is displayed: "Reset

successful."

You may interrupt this trip at any time. When

you continue driving the reset resumes auto-

matically.

A yellow warning light is illuminated in

the instrument cluster.

332

Wheels and tires

MOBILITY

In addition, an icon with a Check Control mes-

sage appears on the control display.

Messages: for tires with special

approval

Icon

Possible cause

General information

When a flat tire is indicated, the Dynamic Sta-

bility Control may be turned on.

There is a tire pressure loss.

Safety information

Measure

1. Reduce the vehicle speed. Do not exceed a

speed of 80 mph/130 km/h.

Warning

2. At the next opportunity, for instance at a fill-

ing station, check the tire inflation pressure

in all four tires and correct if necessary.

A damaged regular tire with low or no tire

inflation pressure impacts handling such as

steering and braking response. There is a risk

of accident, injury, or property damage. Do

not continue driving. Repair the flat tire or re-

place the wheel.

If there is a significant tire pressure

loss

Message

If a tire inflation pressure check is

required

A yellow warning light is illuminated in

the instrument cluster.

Message

In addition, an icon with the affected tire ap-

pears in a Check Control message on the con-

trol display.

An icon with a Check Control message appears

on the control display.

Icon

Possible cause

Icon

Possible cause

Inflation was not carried out accord-

ing to specifications, e.g., the tire has

not been sufficiently inflated.

There is a flat tire or a major tire

pressure loss.

The system has detected a wheel

change, but no reset was done.

Measure

1. Reduce your speed and stop cautiously.

Avoid sudden braking and steering maneu-

vers.

The tire inflation pressure has fallen

below the level of the last reset.

No reset was performed for the sys-

tem. The system issues a warning

based on the tire inflation pressures

stored during the last reset.

2. Read the description on what to do in case

of a flat tire.

Actions in the event of a flat tire, refer to

page 334.

Measure

1. Check the tire pressure and correct as

needed.

2. Perform a system reset.

333

Wheels and tires

MOBILITY

Measure

If the tire inflation pressure is too low

1. Reduce your speed and stop cautiously.

Avoid sudden braking and steering maneu-

vers.

Message

A yellow warning light is illuminated in

the instrument cluster.

2. Read the description on what to do in case

of a flat tire.

In addition, an icon with a Check Control mes-

sage appears on the control display.

Actions in the event of a flat tire, refer to

page 334.

Icon

Possible cause

Actions in the event of a flat tire

1. Identify the damaged tire.

There is a tire pressure loss.

No reset was performed for the sys-

tem. The system issues a warning

based on the tire inflation pressures

stored during the last reset.

Check the tire pressure in all four tires,

for instance using the tire pressure display

of a flat tire kit.

For tires with special approval: if the tire

pressure in all four tires is correct, the Tire

Pressure Monitor may not have been reset.

In this case, perform the reset.

Measure

1. Reduce the vehicle speed. Do not exceed a

speed of 80 mph/130 km/h.

If no tire damage can be identified, con-

tact an authorized service center or another

qualified service center or repair shop.

2. At the next opportunity, for instance at a fill-

ing station, check the tire inflation pressure

in all four tires and correct if necessary.

2. Repair the flat tire, e.g., with a flat tire kit or

by changing the wheel.

3. Reset the system.

Use of sealing compound, for instance from

the flat tire kit, may damage the wheel elec-

tronics. Have the electronics replaced at the

next opportunity.

If there is a significant tire pressure

loss

Message

A yellow warning light is illuminated in

the instrument cluster.

System limits

Temperature

The tire inflation pressure depends on the

tire's temperature.

In addition, an icon with the affected tire ap-

pears in a Check Control message on the con-

trol display.

Driving or exposure to the sun will increase the

tire temperature, thus increasing the tire infla-

tion pressure.

Icon

Possible cause

There is a flat tire or a major tire

pressure loss.

The tire inflation pressure is reduced when the

tire temperature falls again.

No reset was performed for the sys-

tem. The system issues a warning

based on the tire inflation pressures

stored during the last reset.

These circumstances may cause a warning

when temperatures fall very sharply.

334

Wheels and tires

MOBILITY

size indicated on the vehicle placard or tire

inflation pressure label, you should determine

the proper tire inflation pressure for those

tires.) As an added safety feature, the vehi-

cle has been equipped with a tire pressure

monitoring system (TPMS) that illuminates a

low tire pressure telltale when one or more

of your tires is significantly under-inflated. Ac-

cordingly, when the low tire pressure telltale

illuminates, you should stop and check your

tires as soon as possible, and inflate them to

the proper pressure. Driving on a significantly

under-inflated tire causes the tire to overheat

and can lead to tire failure. Under-inflation also

reduces fuel efficiency and tire tread life, and

may affect the vehicle's handling and stopping

ability. Please note that the TPMS is not a

substitute for proper tire maintenance, and it

is the driver's responsibility to maintain correct

tire pressure, even if under-inflation has not

reached the level to trigger illumination of the

TPMS low tire pressure telltale. The vehicle

has also been equipped with a TPMS malfunc-

tion indicator to indicate when the system is

not operating properly. The TPMS malfunction

indicator is combined with the low tire pres-

sure telltale. When the system detects a mal-

function, the telltale will flash for approximately

one minute and then remain continuously il-

luminated. This sequence will continue upon

subsequent vehicle start-ups as long as the

malfunction exists. When the malfunction indi-

cator is illuminated, the system may not be

able to detect or signal low tire pressure as

intended. TPMS malfunctions may occur for a

variety of reasons, including the installation of

replacement or alternate tires or wheels on the

vehicle that prevent the TPMS from function-

ing properly. Always check the TPMS malfunc-

tion telltale after replacing one or more tires

or wheels on the vehicle to ensure that the re-

placement or alternate tires and wheels allow

the TPMS to continue to function properly.

Sudden tire pressure loss

The system cannot indicate sudden serious

tire damage caused by external circumstances.

Failure performing a reset

Tires with special approval: the system will not

function correctly if a reset was not performed,

for example a flat tire may be indicated al-

though the tire inflation pressures are correct.

Malfunction

Message

The yellow warning light flashes and is

then illuminated continuously. A Check

Control message is displayed. It may

not be possible to identify tire pressure losses.

Measure

▷

A wheel without wheel electronics is

mounted: have the wheels checked, if

needed.

▷

Fault caused by systems or devices with

the same radio frequency: after leaving the

area of the interference, the system auto-

matically becomes active again.

▷

For tires with special approval: the system

was unable to complete the reset. Perform

a system reset again.

Tire Pressure Monitor malfunction: have

the vehicle checked by an authorized serv-

ice center or another qualified service cen-

ter or repair shop.

Declaration according to NHTSA/

FMVSS 138 Tire Pressure Monitoring

System

Each tire, including the spare (if provided)

should be checked monthly when cold and in-

flated to the inflation pressure recommended

by the vehicle manufacturer on the vehicle

placard or tire inflation pressure label. (If the

vehicle has tires of a different size than the

335

Wheels and tires

MOBILITY

▷

After the tire inflation pressure has been

adjusted.

Flat tire monitor

After a tire or wheel change.

Principle

The flat tire monitor detects a tire pressure

loss while driving and issues a warning if the

tire pressure has dropped.

Performing initialization

When initializing, the set tire inflation pressures

serve as reference values in order to detect a

flat tire. Initialization is started by confirming

the tire inflation pressures.

General information

The system detects tire pressure loss on the

basis of rotation speed differences between

the individual wheels while driving.

Do not initialize the system when driving with

snow chains.

1. "CAR"

In the event of a tire pressure loss, the diam-

eter and therefore the rate of rotation of the

corresponding wheel changes. The difference

will be detected and reported as a flat tire.

2. "Vehicle status"

3. "Flat Tire Monitor"

4. Turn on drive-ready state and do not drive

off.

The system does not measure the actual infla-

tion pressure in the tires.

5. Start the initialization with: "Perform reset"

6. Drive off.

Functional requirements

The following prerequisites must be met for

the system; otherwise, reliable notification of a

tire pressure loss is not assured:

The initialization is completed while driving,

which can be interrupted at any time.

The initialization automatically continues when

driving continues.

▷

After a tire or wheel change, an initialization

was performed with the correct tire inflation

pressure.

Messages

▷

After the tire pressure was adjusted to a

new value, an initialization was performed.

General information

When a flat tire is indicated, the Dynamic Sta-

bility Control (DSC) is turned on, if needed.

Status display

The current status of the flat tire monitor can

be displayed, e.g., whether the flat tire monitor

is active.

Safety information

Warning

1. "CAR"

A damaged regular tire with low or no tire

inflation pressure impacts handling such as

steering and braking response. There is a risk

of accident, injury, or property damage. Do

not continue driving. Repair the flat tire or re-

place the wheel.

2. "Vehicle status"

3.

"Flat Tire Monitor"

The status is displayed.

Initialization required

An initialization must be performed in the fol-

lowing situations:

336

Wheels and tires

MOBILITY

▷

Sporty driving style: slip on traction wheels,

high lateral acceleration (drifting).

Indication of a flat tire

A yellow warning light is illuminated in

the instrument cluster.

When driving with snow chains.

In addition, an icon with a Check Control mes-

sage appears on the control display.

Changing wheels/tires

Icon

Possible cause

General information

When a flat tire kit is used, an immediate wheel

change when there is a tire pressure loss in the

event of a breakdown is not always necessary.

There is a flat tire or a major tire

pressure loss.

If necessary, a suitable wheel change tool, e.g.,

a jack, is available as an accessory from an

authorized service center or another qualified

service center or repair shop.

Measure

Reduce your speed and stop cautiously. Avoid

sudden braking and steering maneuvers.

Actions in the event of a flat tire

1. Identify the damaged tire.

Safety information

To do this, check the tire pressure in all four

tires, for instance using the tire pressure

display of a flat tire kit.

Warning

The jack is only provided for short-term lifting

of the vehicle for wheel changes. Even if all

safety precautions are observed, there is a

risk of the raised vehicle falling if the jack tips

over. There is a risk of injury or danger to life.

When the vehicle is raised with the jack, do

not lie under the vehicle and do not switch on

the drive-ready state.

When the tire inflation pressure in all four

tires is correct, the flat tire monitor may not

have been initialized. In this case, initialize

the system.

If tire damage cannot be identified, contact

an authorized service center or another

qualified service center or repair shop.

2. Repair the flat tire, e.g., with a flat tire kit or

by changing the wheel.

Warning

Placing supports, e.g., wooden blocks or sim-

ilar, under the jack may reduce its ability to

bear weight because of the limited height.

The load-carrying capacity of the wooden

blocks may be exceeded and the vehicle may

tip over. There is a risk of injury or danger to

life. Do not place supports under the jack.

System limits

The system could be delayed or malfunction in

the following situations:

▷

A natural, even tire pressure loss in all

four tires will not be recognized. Therefore,

check the tire inflation pressure regularly.

▷

Sudden serious tire damage caused by ex-

ternal circumstances cannot be recognized

in advance.

▷

The system has not been initialized.

When driving on a snowy or slippery road.

337

Wheels and tires

MOBILITY

Warning

do not exert lateral effort on the vehicle or

pull abruptly on the vehicle. Have a stuck

wheel removed by an authorized service cen-

ter or another qualified service center or re-

pair shop.

The jack, issued by the vehicle manufacturer,

is provided in order to perform a wheel

change in the event of a breakdown. The

jack is not designed for frequent use, e.g.,

changing from summer to winter tires. Using

the jack frequently may cause it to become

jammed or damaged. There is a risk of injury

and risk of damage to property. Only use the

jack to change an emergency or spare wheel

in the event of a breakdown.

NOTICE

Using an impact wrench to loosen or tighten

the wheel lock bolt can damage the wheel

lock bolt. There is a risk of damage to prop-

erty. Only use a lug wrench to loosen and

tighten the wheel lock bolt.

Warning

Securing the vehicle against rolling

away

The jack may slip on soft, uneven, or slippery

ground, e.g., snow, ice, tiles, etc. There is a

risk of injury. If possible, change the wheel on

a flat, solid, slip-resistant surface.

General information

The vehicle manufacturer recommends to ad-

ditionally secure the vehicle against rolling

away when changing a wheel.

Warning

The jack is optimized for lifting the vehicle

and for the jacking points on the vehicle only.

There is a risk of injury. Do not lift any other

vehicle or cargo using the jack.

On a level surface

Warning

When the jack is not inserted into the jacking

point provided for this purpose, the vehicle

may be damaged or the jack may slip when

it is being cranked up. There is a risk of injury

or risk of damage to property. When cranking

up the jack, ensure that it is inserted in the

jacking point next to the wheel well.

Place chocks or other suitable objects in front

and behind the wheel that is diagonal to the

wheel being changed.

Warning

A vehicle that is raised on a jack may fall

off of the jack if lateral forces are exerted on

it. There is a risk of injury and risk of dam-

age to property. While the vehicle is raised,

338

Wheels and tires

MOBILITY

On a slight downhill gradient

Unscrewing

1. Attach the adapter to the lug lock bolt.

2. Unscrew the lug lock bolt.

3. Remove the adapter after unscrewing the

lug bolt.

Screwing on

1. Attach the adapter to the lug lock bolt. If

necessary, turn the adapter until it fits on

the lug lock bolt.

If it is necessary to change a wheel on a slight

downhill gradient, place chocks and other suit-

able objects, e.g., rocks, under the wheels of

the front and rear axles, against the direction

that the vehicle will move.

2. Screw on the lug lock bolt. The tightening

torque is 101 lbs ft/140 Nm.

3. Remove the adapter and stow it after

screwing on the lug bolt.

Preparing the vehicle

Lug bolt lock

▷

Park the vehicle on solid and non-slip

ground at a safe distance from road traffic.

Principle

▷

Turn on the hazard warning system.

Set the parking brake.

The wheel lug bolts have a special coding. The

lug bolts can only be released with the adapter

which matches the coding.

Engage a gear or move the selector lever to

position P.

Overview

▷

As soon as permitted by the traffic flow,

have all vehicle occupants get out and

make sure that they remain outside the

hazardous area such as behind a guardrail.

Depending on vehicle equipment, store the lug

bolt lock adapter as follows:

▷

In the cargo area under the cargo floor

panel.

▷

Depending on the vehicle equipment, get

wheel change tools and, if necessary, the

emergency wheel from the vehicle.

▷

In the cargo area on the left or right side.

In the cargo area behind a side trim panel.

If necessary, set up a warning triangle or

portable hazard warning light at an appro-

priate distance.

▷

Secure the vehicle additionally against roll-

ing away.

Loosen the lug bolts a half turn.

▷

Lug lock bolt, arrow 1.

Adapter, arrow 2.

339

Wheels and tires

MOBILITY

Jacking points

1. Hold the vehicle jack with one hand, ar-

row 1, and grasp the jack crank handle or

lever with your other hand, arrow 2.

The jacking points are located at the indicated

positions.

2. Insert the jack into the rectangular recess of

the jacking point closest to the wheel to be

changed.

Jacking up the vehicle

Warning

Hands and fingers can be jammed when us-

ing the jack. There is a risk of injury. Comply

with the described hand position and do not

change this position while using the jack.

3. Extend the jack by turning the jack crank

handle or lever clockwise.

4. Take your hand away from the jack as soon

as the jack is under load and continue turn-

ing the jack crank handle or lever with one

hand.

340

Wheels and tires

MOBILITY

5. Make sure that the car jack foot extends

vertically and is at a right angle beneath the

jacking point.

3. Check tire inflation pressure at the next op-

portunity and correct as needed.

4. Re-initialize the flat tire monitor or reset the

Tire Pressure Monitor.

5. Check to make sure the lug bolts are tight

with a calibrated torque wrench.

6. Drive to the nearest authorized service cen-

ter or another qualified service center or

repair shop, then have the damaged tire

replaced.

6. Crank the vehicle up until the vehicle jack

has the entire surface on the ground

and the relevant wheel is maximum 1.2 in-

ches/3 cm above ground.

Mounting a wheel

Mount one emergency wheel only, as required.

1. Unscrew the lug bolts.

2. Remove the wheel.

3. Put the new wheel or emergency wheel on

and screw in at least two lug bolts in a

crosswise pattern until hand-tight.

When non-original light-alloy wheels of the

vehicle manufacturer are mounted, the ac-

companying lug bolts may have to be used

as well.

4. Hand-tighten the remaining lug bolts and

tighten all lug bolts well in a crosswise pat-

tern.

5. Turn the jack crank handle counterclock-

wise to retract the jack and lower the vehi-

cle.

6. Remove the jack and stow it securely.

After the wheel change

1. Tighten the lug bolts crosswise. The tight-

ening torque is 101 lbs ft/140 Nm.

2. Stow the faulty wheel in the cargo area, if

necessary.

341

MOBILITY -> Wheels and tires for Your BMW M8 4 Door First Generation (2019-2025)

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