2018 VOLVO XC90 TWIN ENGINE brake

||WHEELS AND TIRES
* Option/accessory.
566
Related information
• Removing a wheel (p. 566)
• Installing a wheel (p. 568) Removing a wheel
Instructions for removing a wheel when chang-
ing wheels. Wheel changes must always be car-
ried out correctly.
CAUTION •
When not in use, the jack* should be kept
in its storage compartment under the
cargo compartment floor.
• The jack provided with your vehicle is
intended to be used only in temporary sit-
uations such as changing wheels in the
event of a flat tire. Only the jack that
came with your particular model should
be used to lift the vehicle. If the vehicle
needs to be lifted more frequently or for a
prolonged period, using a garage jack or
hoist is recommended. Always follow this
device's instructions for use.
WARNING •
Apply the parking brake and put the gear
selector in the Park (P) position.
• Block the wheels standing on the ground,
use rigid wooden blocks or large stones.
• Check that the jack is not damaged, the
threads are properly lubricated and it is
free from dirt.
• Be sure the jack is on a firm, level, non-
slippery surface and that it is upright and
not leaning.
• The jack must correctly engage in the
jack attachment.
• No objects should be placed between the
base of the jack and the ground, or
between the jack and the attachment bar
on the vehicle.
• Never let anyone remain in the vehicle
when it is raised on a jack.
• If a tire must be changed near passing
traffic, make sure all passengers move to
a safe location.
• Use a jack intended for the vehicle when
changing a tire. For any other job, use
stands to support the vehicle.
• Never crawl under or allow any part of
your body to be extended under a vehicle
supported by a jack.

WHEELS AND TIRES
}}
* Option/accessory. 567
1.

Turn on the vehicle's hazard warning flashers
if a wheel change must be performed in an
area with traffic.
2. Apply the parking brake and put the gear selector in P.
For vehicles with Leveling Control*: If the
vehicle is equipped with pneumatic suspen-
sion, this must be switched off before the
vehicle is lifted with the jack*.
3. Take out the jack*, lug wrench* and tool for
removing the plastic covers, which are
stowed in the foam block. Tool for removing the plastic covers on the wheel bolts.
4. Place chocks in front of and behind the
wheels that are still on the ground. For exam-
ple, use heavy wooden blocks or large
stones. 5.
Using the lug wrench*, screw the towing eye
into place as far as possible according to the
instructions.
CAUTION The towing eyelet must be screwed into the
lug wrench* as far as possible.
6. Remove the plastic covers from the wheel
bolts using the designated tool.
7.

With the vehicle still on the ground, use the
lug wrench/towing eye to loosen the wheel
bolts ½-1 turn by pressing downward (coun-
terclockwise). 8. When hoisting the vehicle, it is important that
the jack* or garage lift arms are positioned
on the designated points under the vehicle.
The triangle markings on the plastic cover
indicate where the jack attachment points/
lifting points are located. There are two jack
attachment points on each side of the vehi-
cle. There is a groove for the jack at each
attachment point. 9. Position the jack under the attachment point
being used, ensuring that the surface is firm,
flat and not slippery.

||WHEELS AND TIRES
* Option/accessory.
568 10. Crank it up until it is properly aligned and it is
in contact with the vehicle's jack attachment
point. Make sure the top of the jack (or the
garage lift arms) is correctly positioned in the
attachment point, with the bump on the top
of the jack in the recess in the attachment
point and the base positioned vertically under
the attachment point.
11. Turn the jack so that the crank is as far as possible from the side of the vehicle, which
will position the jack's arms perpendicular to
the vehicle's direction of movement.
12. Raise the vehicle until the wheel to be changed can move freely. Unscrew the wheel
bolts and lift off the wheel.
Related information
• Leveling control settings* (p. 453)
• When changing wheels (p. 564)
• Hoisting the vehicle (p. 605)
• Jack* (p. 565)
• Tool kit (p. 564)
• Installing a wheel (p. 568) Installing a wheel
Instructions for installing a wheel during a wheel
change.
NOTE The jack provided with your vehicle is
intended to be used only in temporary situa-
tions such as changing wheels in the event of
a flat tire. Only the jack that came with your
particular model should be used to lift the
vehicle. If the vehicle needs to be lifted more
frequently or for a prolonged period, using a
garage jack or hoist is recommended. Always
follow this device's instructions for use.
WARNING •
Apply the parking brake and put the gear
selector in the Park (P) position.
• Block the wheels standing on the ground,
use rigid wooden blocks or large stones.
• Check that the jack is not damaged, the
threads are properly lubricated and it is
free from dirt.
• Be sure the jack is on a firm, level, non-
slippery surface and that it is upright and
not leaning.
• The jack must correctly engage in the
jack attachment.
• No objects should be placed between the
base of the jack and the ground, or
between the jack and the attachment bar
on the vehicle.
• Never let anyone remain in the vehicle
when it is raised on a jack.
• If a tire must be changed near passing
traffic, make sure all passengers move to
a safe location.
• Use a jack intended for the vehicle when
changing a tire. For any other job, use
stands to support the vehicle.
• Never crawl under or allow any part of
your body to be extended under a vehicle
supported by a jack.

||WHEELS AND TIRES
572
CAUTION
Snow chains can be used on the vehicle, with
the following restrictions:
• Volvo recommends not using snow
chains on wheel dimensions larger than
19 inches.
• Always follow the manufacturer's installa-
tion instructions carefully. Install chains
as tightly as possible and retighten peri-
odically.
• Only put snow chains on the front wheels
(also applies to all-wheel drive vehicles).
• If accessory, aftermarket or "custom"
tires and wheels with different dimen-
sions than the original tires and wheels
are used, snow chains in some cases
may NOT be used. Sufficient distance
between the chains and brakes, suspen-
sion and body components must be
maintained.
• Check local regulations regarding the use
of snow chains before installing.
• Never exceed the snow chain manufac-
turer's specified maximum speed limit.
Under no circumstances should you
exceed 50 km/h (30 mph).
• Avoid bumps, holes or sharp turns when
driving with snow chains. •
Avoid driving on surfaces without snow as
this wears out both the snow chains and
the tires.
• The handling of the vehicle can be
adversely affected when driving with
chains. Avoid fast or sharp turns as well
as locked wheel braking.
• Some types of strap-on chains affect
brake components and therefore must
NOT be used. Consult a Volvo retailer for more information
about snow chains.
Related information
•
Winter driving (p. 461) Tire sealing system
13
The temporary tire sealing system can be used
to seal a puncture in a tire or to check and
adjust the pressure in the tire.
Models equipped with a spare wheel 14
do not
have the tire sealing system.
The tire sealing system consists of a compressor
and a bottle containing sealing compound. The
sealing functions as a temporary repair.
NOTE The sealing compound effectively seals tires
with punctures in the tread but may not be
able to fully seal tires with punctures in the
sidewall. Do not use the tire sealing system
on tires with large tears, cracks or similar
damage.
NOTE
The compressor is intended for temporary tire
sealing and is approved by Volvo.
LocationThe tire sealing system is located in a foam block
under the floor of the cargo compartment.

LOADING, STORAGE AND PASSENGER COMPARTMENT
* Option/accessory.587
WARNINGIn a head-on collision at a speed of 50 km/h
(30 mph), an unsecured object weighing 20
kg (44 pounds) can reach a projectile weight
equivalent to 1000 kg (2200 pounds).
WARNING
If objects are loaded higher than the upper
edge of the side windows, leave a 10 cm (4
in.) space between the objects and the win-
dow. Objects placed closer to this could
impede the function of the inflatable curtain
concealed inside the headlining.
WARNING
Always secure the load. Otherwise, it may shift
during heavy braking and injure people in the
vehicle.
Cover sharp edges and sharp corners with
something soft.
Turn off the engine and apply the parking
brake when loading/unloading long objects.
Otherwise, it is possible for the load to reach
the gear lever or gear selector and move it to
a drive position – which could cause the vehi-
cle to begin rolling.
Extra cargo space
The rear seat backrests can be folded down to
increase cargo compartment space and simplify
loading. If the rear seat backrests are folded down, make sure that no objects loaded into the
vehicle prevent the WHIPS system for the front
seats from functioning correctly.
Raising/lowering the rear end of the
vehicle*
The rear end of the vehicle can be lowered or
raised for easier loading or to facilitate attaching
a trailer*.
The controls for raising/lowering are located at
the rear edge of the cargo compartment's right
side panel. Controls for raising/lowering the rear end of the vehicle.
The controls consist of two buttons ‒ one button
for lowering and one button for raising the rear
end. Press and hold the relevant button until the
desired height is reached.
The rear end of the vehicle cannot be raised
higher than its normal height. The rear end will return to the normal height
when the vehicle begins driving.
NOTE It is not possible to adjust the height of the
vehicle's rear when one or more of the doors
or the hood is open. This does not apply to
the tailgate.
WARNING
Make sure that no people, animals or objects
are found under the vehicle when it is low-
ered. This could endanger life and cause
damage to the vehicle or objects.
Related information
•
Load anchoring eyelets (p. 589)
• Folding the second row backrests (p. 192)
• Roof loads and load carriers (p. 588)
• Leveling control* and suspension (p. 450)
• Weights (p. 659)

||MAINTENANCE AND SERVICE
600
Monthly:
•
Check cold tire pressure in all tires. Inspect
the tires for wear.
• Check that engine coolant and other fluid
levels are between the indicated "min" and
"max" markings.
• Clean interior glass surfaces with a glass
cleaner and soft paper towels.
• Wipe driver information displays with a soft
cloth.
• Visually inspect battery terminals for corro-
sion. Corrosion may indicate a loose terminal
connector, or a battery near the end of its
useful service life. Consult your Volvo retailer
for additional information.
As needed:
Wash the car, including the undercarriage, to
reduce wear that can be caused by a buildup of
dirt, and corrosion that can be caused by salt res-
idues.
Clean leaves and twigs from air intake vents at
the base of the windshield, and from other places
where they may collect.
NOTE Complete service information for qualified
technicians is available online for purchase or
subscription at www.volvotechinfo.com.
Related information
•
Vehicle status (p. 602)
• Scheduling service and repairs (p. 603)
• Connecting equipment to the vehicle's data
link connector (p. 36)
• Technician certification (p. 37)
• Climate control system service (p. 608)
• Maintenance of the brake system (p. 432)
• Engine compartment overview (p. 609) Data transfer between vehicle and
workshop over Wi-Fi
Volvo workshops have a designated Wi-Fi net-
work for secure data transfer between your vehi-
cle and the workshop. Your visit to the workshop
will be easier and more effective when diagnos-
tics information and software can be transferred
over the workshop's network.
When you arrive at the workshop, your technician
can connect your vehicle to the workshop's Wi-Fi
network to perform troubleshooting and down-
load software. For this type of communication,
the vehicle only connects to the workshop's net-
work. The vehicle can only be connected to the
designated workshop networks, not to any other
network, e.g. your home network.
Manual connection to workshop Wi-FiManual connection is usually performed by a
service technician. Because the technician uses
the buttons on your remote key to connect the
vehicle, it is important that you bring a key with
buttons when taking the vehicle in to a workshop.
Pressing the lock button on the remote key three
times will connect the vehicle to the workshop's
Wi-Fi network.
When the car is connected to a Wi-Fi network,
the symbol appears in the center display.

MAINTENANCE AND SERVICE
609
Engine compartment overview
This overview shows some service-related com-
ponents. Some of the components included in the vehi-
cle's electric drive system are located in the
engine compartment. Exercise caution when
accessing the engine compartment and only
touch what is required for normal maintenance.
WARNING Orange wiring may only be handled by quali-
fied personnel.
WARNING
Several components in the vehicle work with
high voltage that can be hazardous in case of
an incorrect procedure.
• Do not touch anything that is not clearly
described in this Owner's Manual.
• Be careful when checking/filling fluids in
the engine compartment. The layout of the engine compartment may vary depend-
ing on model and engine variant.
Coolant expansion tank
Brake fluid reservoir (located on the driver's
side)
Washer fluid filler pipe
11 Fusebox
Air filter
Engine oil filler pipe
WARNING Bear in mind that the cooling fan (located at
the front of the engine compartment behind
the radiator) may start or continue running
automatically up to about 6 minutes after the
engine is turned off.
Always entrust engine washing to a workshop
– an authorized Volvo workshop is recom-
mended. If the engine is hot, there is a risk of
fire.
WARNING
The ignition system works with extremely high
and dangerous voltages. The vehicle electrical
system should always be in ignition mode 0
when work in being performed in the engine
compartment.
Do not touch any spark plugs or ignition coils
when the vehicle electrical system is in igni-
tion mode II or when the engine is warm.
Related information
•
Opening and closing the hood (p. 607)
• Filling washer fluid (p. 650)
• Refilling coolant (p. 612)
• Fuses in the engine compartment (p. 622)
• Checking and filling engine oil (p. 611)
• Ignition modes (p. 427) 11
Fill the washer fluid at regular intervals, e.g. when refueling.

MAINTENANCE AND SERVICE
622Fuses in the engine compartment
The fuses in the engine compartment help pro-
tect electrical components such as engine and
brake functions.