Volvo XC90 Excellence (2018 year). Instruction

WHEELS AND TYRES

* Option/accessory.

533

Checking tyre pressure with the tyre

monitoring system

With the system for tyre monitoring, Indirect Tyre
Pressure Monitoring System (ITPMS), tyre pres-
sure status can be viewed in the centre display.

Checking status

1. Open the

Car status

app in the app view.

2. Tap on

TPMS

to show the status of the

tyres.

Status indication

The graphics show the status for each tyre

Green tyre:

•

The tyre pressure is above the limit value for
a warning.

Yellow tyre:

•

The tyre's pressure is too low. Stop and
check/rectify the tyre pressure as soon as
possible. Calibrate ITPMS after the tyre pres-
sure has been adjusted.

All tyres yellow:

•

The pressure is too low in two or more tyres.
Stop and check/rectify the tyre pressures as
soon as possible. Calibrate ITPMS after the
tyre pressures have been adjusted.

All tyres grey:

•

Calibration in progress.

•

Unknown status.

Several minutes driving above 35 km/h (22 mph)
may be required for the system to become active.

All tyres grey and a message:

•

Tyre pressure system

Temporarily

unavailable

. The indicator symbol flashes

and changes to constant glow after approx. 1
minute. The system is currently unavailable,
activated shortly.

•

Tyre pressure system

Service required

The indicator symbol flashes and changes to
constant glow after approx. 1 minute. The
system is not working correctly, contact an
authorised Volvo workshop (recommended).

Related information

•

Tyre monitoring

* (p. 531)

•

Calibrating tyre monitoring

* (p. 535)

•

Rectifying low tyre pressure with tyre moni-
toring

* (p. 534)

•

Car status (p. 552)

The figure is schematic. Layout may vary depending on car model or updated software.

WHEELS AND TYRES

* Option/accessory.

534

Rectifying low tyre pressure with

tyre monitoring

When the tyre monitoring system, Indirect Tyre
Pressure Monitoring System (ITPMS), gives a
warning, the tyre pressure in one or more of the
car's tyres is too low.

Check and rectify the tyre pressure
when the indicator symbol for ITPMS is
illuminated and the message

Tyre

pressure low

is shown. Calibrate

ITPMS after the tyre pressure has been adjusted.

1. Check the tyre pressure in all four tyres with

a tyre pressure gauge.

2. Inflate the tyres to the correct pressure as

indicated on the tyre pressure label on the
door pillar on the driver's side.

3. Recalibrate the ITPMS system, see the sec-

tion "Calibrating tyre monitoring".

4. Drive the car at a speed above 35 km/h

(22 mph).

Note that the ITPMS symbol does not extin-
guish until the low tyre pressure has been
rectified and new calibration has been per-
formed.

NOTE

To avoid incorrect tyre pressure, the pressure
should be checked on cold tyres. "Cold tyres"
means the tyres are the same temperature as
the ambient temperature (approx. 3 hours
after the car has been driven). After a few kil-
ometres of driving, the tyres warm up and the
pressure increases.

NOTE

•

After a tyre has been inflated, always refit
the dust cap in order to avoid damage to
the valve from gravel, dirt, etc.

•

Only use plastic dust caps. Metal dust
caps can rust and become difficult to
unscrew.

WARNING

•

Incorrect tyre pressure may lead to tyre
failure, which could result in the driver
losing control of the car.

•

The system cannot indicate sudden tyre
damage in advance.

Related information

•

Tyre monitoring

* (p. 531)

•

Checking tyre pressure with the tyre monitor-
ing system

* (p. 533)

•

Calibrating tyre monitoring

* (p. 535)

•

Approved tyre pressures (p. 614)

•

Inflate tyres with the compressor from the
emergency puncture repair kit (p. 540)

WHEELS AND TYRES

* Option/accessory.

535

Calibrating tyre monitoring

In order for the Indirect Tyre Pressure Monitoring
System (ITPMS) to work correctly, a reference
value for the tyre pressure must be determined.
This must be performed each time the tyres are
changed or the tyre pressure is changed.

For example, when driving with a heavy load or at
high speed above 160 km/h (100 mph), the tyre
pressure should be adjusted in accordance with
Volvo's recommended tyre pressure values. Fol-
lowing which, the system must be recalibrated.

1. Switch off the car.

2. Inflate the tyres to the desired pressure in

accordance with the tyre pressure label on
the door pillar on the driver's side.

3. Start the car.

4. Open the

Car status

app in the app view.

5. Press

TPMS

NOTE

The car must be stationary when calibration is
started.

6. Press

Calibrate

7. Tap on

to confirm that the tyre pressure

in all four tyres has been checked and
adjusted.

8. Drive the car.

Calibration is performed when the car is
driven at a speed above 35 km/h (22 mph).
Calibration is interrupted temporarily if the
engine is switched off, but is resumed auto-
matically in the background when the car is
driven again.
> When sufficient data has been collected

to enable the system to detect low tyre
pressure, the tyres in the centre display
change colour from grey to green. The
system provides no additional confirma-
tion that the calibration is complete.

If calibration fails, a message is shown:

Calibration unsuccessful. Please try
again.

NOTE

Remember that the TPMS system must be
recalibrated at each tyre change or if the tyre
pressure is adjusted. New reference values
must be stored for the system to work cor-
rectly.

Related information

•

Tyre monitoring

* (p. 531)

•

Checking tyre pressure with the tyre monitor-
ing system

* (p. 533)

•

Rectifying low tyre pressure with tyre moni-
toring

* (p. 534)

WHEELS AND TYRES

536

Emergency puncture repair kit

The emergency puncture repair kit, Temporary
Mobility Kit (TMK), is used to seal a puncture as
well as to check and adjust the air pressure.

The puncture repair kit consists of a compressor
and a bottle with sealing fluid. The sealing works
as a temporary repair. The sealing fluid effectively
seals tyres punctured in the tread.

The puncture repair kit has limited capacity to
seal tyres which have punctures in the wall. Do
not use the puncture repair kit on tyres that have
larger slits, cracks or similar damage.

NOTE

The emergency puncture repair kit is only
intended for sealing tyres with a puncture in
the tread.

NOTE

The compressor for temporary emergency
puncture repair has been tested and
approved by Volvo.

Location

The puncture repair kit is located in the foam
block under the floor in the cargo area.

Sealing fluid bottle

The bottle of sealing fluid must be replaced if the
bottle's expiry date has passed (see the decal on
the bottle). Treat the old bottle as environmentally
hazardous waste.

The sealing fluid bottle must be replaced after
use. Volvo recommends that the replacement is
performed by an authorised Volvo workshop.

WARNING

The bottle with sealing fluid contains 1.2-

Ethanol and natural rubber-latex.

•

Harmful if ingested.

•

Could result in allergic reaction in the
event of skin contact.

•

Avoid contact with the skin and eyes.

•

Store out of the reach of children.

WARNING

•

In the event of skin contact with the seal-
ing fluid, it must be washed off immedi-
ately with soap and plenty of water.

•

Sealing fluid that makes contact with an
eye must be rinsed away immediately with
eye wash fluid or with plenty of water. If
the discomfort persists then the eye
should be examined by a doctor.

Related information

•

Using the emergency puncture repair kit
(p. 537)

•

Inflate tyres with the compressor from the
emergency puncture repair kit (p. 540)

•

Tyres (p. 528)

WHEELS AND TYRES

}}

537

Using the emergency puncture

repair kit

Seal a puncture with the emergency puncture
repair kit, Temporary Mobility Kit (TMK).

Overview

Electrical cable

Air hose

Pressure reducing valve

Protective cap

Label, maximum permitted speed

Bottle holder (orange cap)

Pressure gauge

Sealing fluid bottle

Switch

Connecting

1. Set up the warning triangle and activate the

hazard warning lights if a tyre is being sealed
in a trafficked location.

If the puncture was caused by a nail or simi-
lar, allow this to remain in the tyre. It helps to
seal the hole.

2. Detach the decal for maximum permitted

speed that is affixed on one side of the com-
pressor. Affix it visibly on the windscreen as a
reminder to observe the speed limit. You
should not drive faster than 80 km/h
(50 mph) after the emergency tyre repair kit
has been used.

3. Check that the switch is in position 0 (Off),

and locate the electrical cable and the air
hose.

4. Unscrew the orange-coloured cap from the

compressor, and unscrew the cork from the
sealing fluid bottle.

NOTE

Do not break the bottle's seal before use. The
seal is broken automatically when the bottle is
screwed in.

WHEELS AND TYRES

538

5. Screw in the bottle to the bottom of the bot-

tle holder.
> The bottle and the bottle holder are

equipped with a reverse catch to prevent
sealant leakage. When the bottle is
screwed in it cannot be unscrewed from
the bottle holder again. Bottle removal
must be performed at a workshop, Volvo
recommends an authorised Volvo work-
shop.

WARNING

•

In the event of skin contact with the seal-
ing fluid, it must be washed off immediately
with soap and plenty of water.

•

Sealing fluid that makes contact with an
eye must be rinsed away immediately with
eye wash fluid or with plenty of water. If the
discomfort persists then the eye should be
examined by a doctor.

WARNING

Do not unscrew the bottle, it is equipped with

a reverse catch to prevent leakage.

6. Unscrew the tyre's dust cap.

Check that the pressure reducing valve on
the air hose is fully screwed on, and screw in
the air hose's valve connection to the bottom
of the tyre valve's thread.

7. Connect the electrical cable to the closest

12 V socket and start the car.

NOTE

Make sure that none of the other 12 V sock-
ets is in use when the compressor is operat-
ing.

WARNING

Do not leave children in the car without

supervision when the engine is running.

8. Start the compressor by flicking the switch to

position I (On).

WARNING

Never stand next to the tyre when the com-

pressor is running. If cracks or unevenness

arise then the compressor must be switched

off immediately. The journey should not be

continued. Call roadside assistance for recov-

ery to a tyre centre. Volvo recommends an

authorised tyre centre.

NOTE

When the compressor starts, the pressure
can increase up to 6 bar (88 psi) but the
pressure drops after approximately
30 seconds.

9. Inflate the tyre for 7 minutes.

IMPORTANT

The compressor must not be operated for
longer than 10 minutes - risk of overheating.

WHEELS AND TYRES

}}

539

10. Switch off the compressor to check the pres-

sure on the pressure gauge. Minimum pres-
sure is 1.8 bar (22 psi) and maximum is
3.5 bar (51 psi). Release air using the pres-
sure reducing valve if the tyre pressure is too
high.

WARNING

If the pressure is below 1.8 bar (22 psi) then

the hole in the tyre is too big. The journey

should not be continued. Call roadside assis-

tance for recovery to a tyre centre. Volvo rec-

ommends an authorised tyre centre.

11. Switch off the compressor and detach the

electrical cable.

12. Unscrew the air hose from the tyre valve and

refit the dust cap on the tyre.

13. Fit the protective cap on the air hose in order

to avoid leakage of the remaining sealing
fluid. Place the equipment in the cargo area.

14. As soon as possible, drive at least 3 km

(2 miles) at a maximum speed of 80 km/h
(50 mph) so that the sealing fluid can seal
the tyre, and then perform a follow-up check.

NOTE

Sealant will spurt out of the puncture during
the first few rotations of the tyre.

WARNING

Make sure that nobody is standing near the

car and gets the sealing fluid splashed onto

them when the car is driven away. The dis-

tance should be at least 2 metres (7 feet).

15. Follow-up inspection

Connect the air hose on the tyre valve and
screw in the valve connection to the bottom
of the tyre valve's thread. The compressor
must be switched off.

16. Read the tyre pressure on the pressure

gauge.

•

If it is below 1.3 bar (19 psi) then the tyre
is insufficiently sealed. The journey should
not be continued. Call roadside assistance
for recovery.

•

If the tyre pressure is higher than 1.3 bar
(19 psi), the tyre must be inflated to the
pressure specified in accordance with the
tyre pressure label on the driver's side
door pillar (1 bar = 100 kPa). Release air
using the pressure reducing valve if the
tyre pressure is too high.

17. If the tyre needs to be inflated:

1. Connect the electrical cable to the closest

12 V socket and start the car.

2. Start the compressor and inflate the tyre

to the pressure specified in accordance
with the tyre pressure label.

3. Switch off the compressor.

WHEELS AND TYRES

540

18. Remove the tyre sealing equipment.

Fit the protective cap on the air hose in order
to avoid leakage of the remaining sealing
fluid.

WARNING

Do not unscrew the bottle, it is equipped with

a reverse catch to prevent leakage.

19. Refit the dust cap on the tyre.

NOTE

•

After a tyre has been inflated, always refit
the dust cap in order to avoid damage to
the valve from gravel, dirt, etc.

•

Only use plastic dust caps. Metal dust
caps can rust and become difficult to
unscrew.

NOTE

The sealing fluid bottle and the hose must be
replaced after use. Volvo recommends that
this replacement is performed by an author-
ised Volvo workshop.

WARNING

Check the tyre pressure regularly.

Volvo recommends that the car is driven to the
nearest authorised Volvo workshop for the
replacement/repair of the damaged tyre. Advise
the workshop that the tyre contains sealing fluid.

WARNING

•

You should not drive faster than 80 km/h
(50 mph) after the emergency tyre repair
kit has been used.

•

Maximum mileage with tyres containing
sealing fluid is 200 km (120 miles).

•

Volvo recommends visiting an authorised
Volvo workshop as soon as possible for
inspection of the sealed tyre. The staff
there can determine whether or not the
tyre can be repaired or if it needs to be
replaced.

Related information

•

Emergency puncture repair kit (p. 536)

Inflate tyres with the compressor

from the emergency puncture repair

kit

The car's original tyres can be inflated using the
compressor in the emergency puncture repair
kit.

1. The compressor must be switched off. Make

sure that the switch is in position 0 (Off), and
take out the electrical cable and the air hose.

2. Unscrew the tyre's dust cap and screw in the

air hose's valve connection to the bottom of
the thread on the tyre's air valve. Check that
the pressure reducing valve on the air hose
is fully screwed in.

3. Connect the electrical cable to the closest

12 V socket and start the car.

WARNING

Inhaling car exhaust fumes could result in

danger to life. Never leave the engine running

in sealed areas or areas that lack sufficient

ventilation.

WARNING

Do not leave children in the car without

supervision when the engine is running.

4. Start the compressor by flicking the switch to

position I (On).

WHEELS AND TYRES

* Option/accessory.

541

IMPORTANT

Risk of overheating. The compressor must not
run for more than 10 minutes.

5. Inflate the tyre to the pressure specified on

the tyre pressure label on the driver side door
pillar. Release air using the pressure reduc-
ing valve if the tyre pressure is too high.

6. Switch off the compressor. Detach the air

hose and the electrical cable.

7. Refit the dust cap on the tyre.

NOTE

•

After a tyre has been inflated, always refit
the dust cap in order to avoid damage to
the valve from gravel, dirt, etc.

•

Only use plastic dust caps. Metal dust
caps can rust and become difficult to
unscrew.

Related information

•

Emergency puncture repair kit (p. 536)

•

Approved tyre pressures (p. 614)

When changing wheels

The car's wheels can be changed, e.g. to winter
wheels or a spare wheel.

Follow the relevant instructions for removing and
fitting wheels.

When changing to another tyre
dimension

Check that the tyre dimension is approved for
use on the car.

Contact an authorised Volvo workshop for updat-
ing the software at each change of tyre dimen-
sion. A software download may be necessary
both when changing to larger and smaller dimen-
sions, and also when switching between summer
and winter wheels.

Related information

•

Removing a wheel (p. 542)

•

Fitting the wheels (p. 543)

•

Approved wheel and tyre sizes (p. 612)

•

Tool kit (p. 546)

•

Winter wheels (p. 545)

•

Spare wheel

* (p. 544)

•

Wheel bolts (p. 544)

WHEELS AND TYRES

* Option/accessory.

542

Removing a wheel

Instructions for removing a wheel when chang-
ing wheels.

1. Set up the warning triangle and activate the

hazard warning lights if a tyre is being
changed in a trafficked location.

2. Apply the parking brake and engage gear

position P.

Applies to cars with

Leveling Control

*: If

the car is equipped with air suspension, this
must be disabled before the car is raised
with a jack

Deactivate the function via the top view of
the centre display by pressing

Settings

My Car

Parking Brake and Suspension

and selecting

Disable Leveling Control

WARNING

Check that the jack is not damaged, that the

threads are thoroughly lubricated and that it is

free from dirt.

3. Take out the jack

*, wheel wrench* and tools

for the wheel bolts' plastic caps that are fitted
in the foam block.

Tool for removing the plastic caps on the wheel bolts.

NOTE

The normal car jack is only designed for occa-
sional, short-term use, such as when chang-
ing a wheel after a puncture, changing to win-
ter/summer wheels, etc. Only the jack for the
specific car model may be used to raise the
car. If the car is to be jacked up more often, or
for a longer time than is required just to
change a wheel, use of a garage jack is rec-
ommended. In this instance, follow the
instructions for use that come with the equip-
ment.

4. Place chocks in front of and behind the

wheels which will remain on the ground to
prevent them from rolling. Use heavy wooden
blocks or large stones for example.

5. Screw together the towing eye with the

wheel wrench

* to the stop position.

IMPORTANT

The towing eye must be screwed all the way
into the wheel bolt wrench

6. Remove the plastic caps from the wheel

bolts with the intended tool.

7. Loosen the wheel bolts ½-1 turn anticlock-

wise with the wheel wrench

WHEELS AND TYRES

}}

* Option/accessory.

543

WARNING

Never position anything between the ground

and the jack, nor between the jack and the

car's jacking point.

IMPORTANT

The ground must be firm, smooth and level.

8. When raising the car, it is important that the

jack

* or lifting arms are fitted in the intended

points on the car's underbody. The triangle
markings in the plastic cover indicate the
locations of the jacking/lifting points. There
are two jacking points on each side of the
car. There is a recess for the jack at each
point.

Crank up the jack

* so that it makes contact

with the car's jacking point. Check that the
head of the jack is correctly positioned in the
jacking point so that the bump in the centre
of the head fits into the jacking point hole
and the base is positioned vertically below
the jacking point. Also make sure you turn
the jack so that the crank is as far away from
the side of the car as possible, at which point
the jack's arms are perpendicular to the
direction of the car.

WARNING

Never crawl under the car when it is raised on

the jack.
Passengers must leave the car when it is

raised on the jack. If a wheel must be

changed in a trafficked environment, passen-

gers must stand in a safe place.

9. Lift the car so that the wheel is free. Remove

the wheel bolts and lift off the wheel.

Related information

•

When changing wheels (p. 541)

•

Raise the car (p. 557)

•

Fitting the wheels (p. 543)

•

Tool kit (p. 546)

Fitting the wheels

Instructions for fitting a wheel when changing
wheels.

WARNING

Never crawl under the car when it is raised on

the jack.
Passengers must leave the car when it is

raised on the jack. If a wheel must be

changed in a trafficked environment, passen-

gers must stand in a safe place.

1. Clean the contact surfaces between wheel

and hub.

2. Put on the wheel. Tighten the wheel bolts

thoroughly.

Do not use lubricant on the threads of the
wheel bolts.

3. Lower the car so that the wheels cannot

rotate.

WHEELS AND TYRES

* Option/accessory.

544

4. Tighten the wheel bolts crosswise. It is impor-

tant that the wheel bolts are tightened prop-
erly. Tighten to 140 Nm (103 ft.lbs.). Check
the tightening torque with a torque wrench.

5. Refit the plastic caps on the wheel bolts.

NOTE

•

After a tyre has been inflated, always refit
the dust cap in order to avoid damage to
the valve from gravel, dirt, etc.

•

Only use plastic dust caps. Metal dust
caps can rust and become difficult to
unscrew.

Related information

•

Removing a wheel (p. 542)

•

When changing wheels (p. 541)

•

Spare wheel

* (p. 544)

Wheel bolts

Wheel bolts are used to attach the wheels to the
hubs.

IMPORTANT

The wheel bolts must be tightened to
140 Nm (103 ft. lbs.). Overtightening or loose
tightening may damage the nuts and the
bolts.

Only use rims that are tested and approved by
Volvo and which are Volvo genuine accessories.

Check the tightening torque of the wheel bolts
with a torque wrench.

Do not use lubricant on the threads of the wheel
bolts.

Locking wheel bolts

In the foam block under the cargo area floor
there is space for the sleeve for the lockable
wheel bolts.

Related information

•

When changing wheels (p. 541)

Spare wheel

The spare wheel can be used to replace a punc-
tured normal wheel.

The spare wheel is stored in a bag and must be
secured with two straps on the floor of the cargo
area during driving. The backrests of the third row
of seats must be lowered.

The straps must be tensioned crosswise over the
wheel and attached in the car's four load retain-
ing eyelets.

Check the tyre pressure in the spare wheel regu-
larly as well.

Tools for changing a wheel are stored under the
cargo area floor, see the section "Tool kit".

WHEELS AND TYRES

* Option/accessory.

545

Related information

•

Removing a wheel (p. 542)

•

Fitting the wheels (p. 543)

•

Tool kit (p. 546)

•

Jack

* (p. 547)

Winter wheels

Winter wheels are adapted for winter road con-
ditions.

Volvo recommends winter tyres with particular
dimensions. Tyre dimensions are dependent on
engine variant. When driving on winter tyres, the
correct type of tyres must be fitted to all four
wheels.

NOTE

Contact a Volvo dealer for advice about which
wheel rim and type of tyre are most suitable.

Tips for changing to winter tyres

When summer and winter wheels are changed,
mark which side of the car they were mounted
on, for example L for left and R for right.

Studded tyres

Studded winter tyres should be run in gently for
500-1000 km so the studs settle properly into
the tyres. This gives the tyre, and especially the
studs, a longer service life.

NOTE

The legal provisions for the use of studded
tyres vary from country to country.

Tread depth

Road conditions with ice, slush and low tempera-
tures place considerably higher demands on tyres
than summer conditions. Volvo therefore recom-
mends not to drive on winter tyres that have a
tread depth of less than 4 mm.

Snow chains

Volvo recommends that snow chains are not
used on wheel dimensions greater than
19 inches.

Mounting instructions are supplied with Volvo
original snow chains.

Snow chains may only be used on the front
wheels (also applies to all-wheel drive cars).
Never drive faster than 50 km/h (30 mph) with
snow chains. Avoid driving on bare ground as this
wears out both the snow chains and tyres.

WARNING

Use Volvo genuine snow chains or equivalent

chains designed for the car model, and tyre

and rim dimensions. Only single-sided snow

chains are permitted.
In the event of uncertainty about the show

chain, Volvo recommends that an authorised

Volvo workshop should be contacted. The

wrong snow chains may cause serious dam-

age to the car and lead to an accident.

Related information

•

When changing wheels (p. 541)

WHEELS AND TYRES

* Option/accessory.

546

Tool kit

Tools that can be useful during towing, wheel
changes or similar are found in the car's cargo
area.

The foam block under the cargo area floor con-
tains the car's towing eye, puncture repair kit, tool
for removing the plastic caps from the wheel
bolts and a socket for the lockable wheel bolts.

If the car is equipped with spare wheel

* then a

jack

* and wheel wrench* are included, as well as

a package

* with disposable gloves and a bag for

the damaged wheel.

Related information

•

When changing wheels (p. 541)

•

Jack

* (p. 547)

•

Warning triangle (p. 546)

•

First aid kit (p. 548)

•

Towing eye (p. 460)

Warning triangle

Use the warning triangle to warn other road
users if the car is stationary in traffic.

Also activate the hazard warning flashers.

Storage spaces

The warning triangle is located in the compart-
ment on the inside of the tailgate.

Folding up the warning triangle

WHEELS AND TYRES

* Option/accessory.

547

Open the hatch by first turning the knob a
quarter turn and then pulling the hatch from
its brackets in the top and bottom edges.

Press the latch that secures the warning tri-
angle slightly to the right and remove the
case.

Remove the warning triangle from the case,
unfold it and put the ends together.

Fold out the warning triangle's support legs.

Follow the regulations for the use of a warning
triangle. Position the warning triangle in a suita-
ble place with regard to traffic.

Make sure that the warning triangle and case are
properly secured in their storage space and that
the hatch is fully closed after use.

Related information

•

Tool kit (p. 546)

•

Hazard warning flashers (p. 148)

Jack

Use the jack to raise the car when changing a
wheel.

Only use the original jack when fitting a spare
wheel or when changing between summer and
winter wheels. The jack's thread must always be
well greased.

IMPORTANT

The tools and jack

* must be stored in the

intended location in the car's cargo area
when not in use.

The jack needs to be cranked together to the
correct position in order to have space.

NOTE

Applies to cars with level control

If the car is equipped with air suspension then
this must be deactivated before the car is raised
with the jack.

Switch off the function via the centre display:

1. Press on

Settings

in the top view.

2. Press

My Car

Parking Brake and

Suspension

3. Select

Disable Leveling Control

Related information

•

Tool kit (p. 546)

•

Raise the car (p. 557)

WHEELS AND TYRES

548

First aid kit

The first aid kit contains first aid equipment.

Store the first aid kit in the space on the right-
hand side in the cargo area.

Related information

•

Tool kit (p. 546)

Dimension designation for wheel

rim

Wheel and rim dimensions are designated in
accordance with the examples in the table
below.

The car has an approval for the complete vehicle
with certain combinations of wheel rims and
tyres.

All wheel rims have a dimension designation, for
example: 8Jx18x42.5.

Rim width in inches

Rim flange profile

Rim diameter in inches

42,5 Off-set in mm (distance from wheel

centre to wheel contact surface against
the hub)

Related information

•

Tyres (p. 528)

•

Dimension designation for tyre (p. 548)

•

Approved wheel and tyre sizes (p. 612)

Dimension designation for tyre

Designations for tyre dimension, load index and
speed rating.

The car has an approval for the complete vehicle
with certain combinations of wheel rims and
tyres.

Designation of dimensions

All tyres have a dimension designation, such as
235/60 R18 103 H.

235 Tyre width (mm)

Ratio between tyre wall height and tyre
width (%)

Radial ply

Rim diameter in inches

103 Codes for the maximum permitted tyre

load, tyre load index (LI)

Speed rating for maximum permitted
speed, speed rating (SS). (In this case
210 km/h (130 mph).)

Load index

Each tyre has a certain capacity to carry a load, a
load index (LI). The car's weight determines the
load capacity required of the tyres. The lowest
permitted load index is specified in a load index
table.

Volvo XC90 Excellence (2018 year). Instruction - part 32