Volvo XC90 Excellence (2018 year). Instruction — part 32
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
2
.
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
•
•
•
Rectifying low tyre pressure with tyre moni-
toring
•
2
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.
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.
•
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
•
•
Checking tyre pressure with the tyre monitor-
ing system
•
•
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
.
The car must be stationary when calibration is
started.
6. Press
Calibrate
.
7. Tap on
OK
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.
.
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
•
•
Checking tyre pressure with the tyre monitor-
ing system
•
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.
The emergency puncture repair kit is only
intended for sealing tyres with a puncture in
the tread.
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)
•
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.
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.
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.
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.
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.
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.
•
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.
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
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.
•
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
•
•
•
Approved wheel and tyre sizes (p. 612)
•
•
•
•
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.
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.
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.
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
•
•
•
•
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.
•
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
•
•
•
Wheel bolts
Wheel bolts are used to attach the wheels to the
hubs.
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
•
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
•
•
•
•
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.
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.
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
•
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
•
•
•
•
•
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
•
•
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.
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.
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.
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
•
•
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
•
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.
8
Rim width in inches
J
Rim flange profile
18
Rim diameter in inches
42,5 Off-set in mm (distance from wheel
centre to wheel contact surface against
the hub)
Related information
•
•
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)
60
Ratio between tyre wall height and tyre
width (%)
R
Radial ply
18
Rim diameter in inches
103 Codes for the maximum permitted tyre
load, tyre load index (LI)
H
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.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст