2018 VOLVO XC90 cooling

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DRIVER SUPPORT
* Option/accessory.
376
Related information
• Steering assistance at risk of collision (p. 370)
Activating/deactivating Steeringassistance during collision risks
from behind
*
The driver can choose to have this function On
or Off .
To switch it off:
1. Select
SettingsMy CarIntelliSafe in
the center display's Top view.
2. Deselect
Collision avoidance assistance.
> The function will be deactivated.
NOTE
When the Collision avoidance assistancefunction is deactivated, all subfunctions of the following are deactivated: • Steering assistance at risk of run-off
• Steering assistance at risk of head-on collision
• Steering assistance during collision risks from behind
*
Although it is possible to deactivate the func- tion, the driver is advised to keep it activatedsince it can help improve driving safety inmost cases.
Related information
• Steering assistance at risk of collision (p. 370)
Limitations of steering assistanceduring collision risks from behind The function may have limited functionality in certain situations and not intervene, e.g.:
•
for smaller vehicles such as motorcycles
• if more than half of your vehicle has moved into the adjacent lane
• on roads/lanes with indistinct or no side lanemarkings
• outside the speed range 60-140 km/h(37-87 mph)
• when the power steering works at reducedpower - e.g. during cooling due to overheat-ing (see section "Speed-dependent steeringforce").
Functionality may also be reduced in other situa-tions, such as: • road work
• winter driving conditions
• narrow roads
• poor road surfaces
• a very sporty driving style
• bad weather with reduced visibility.
In these demanding driving conditions, the func-tion may not be able to properly assist the driver.In these situations, it is recommended that it isturned off.

DRIVER SUPPORT
* Option/accessory.
398
Park Assist Pilot * limitations
Park Assist Pilot PAP 127
may not be able to
detect all conditions in all situations and func- tionality may therefore be limited.WARNING
• The PAP function is supplementary driver support intended to facilitate driving andhelp make it safer – it cannot handle allsituations in all traffic, weather and roadconditions.
• Pay particular attention to people andanimals near the vehicle.
• Bear in mind that the front end of thevehicle may swing out towards oncomingtraffic during the parking maneuver.
• Objects situated higher than the detec-tion area of the sensors are not includedwhen the parking maneuver is calculated,which could cause PAP to swing into theparking space too early. Such parkingspaces should be avoided for this reason.
• PAP is not a substitute for the driver'sattention and judgment. The driver isalways responsible for ensuring the vehi-cle is driven in a safe manner, at theappropriate speed, with an appropriatedistance to other vehicles, and in accord-ance with current traffic rules and regula-tions.
The driver should be aware of the following limi-tations for Park Assist Pilot:
The parking sequence is cancelledA parking sequence will be cancelled if:
• the driver moves the steering wheel
• the vehicle's speed exceeds 7 km/h (4 mph)
• the driver taps
Cancel in the center display
• when the anti-lock brakes or the Electronic stability control are engaged - e.g. when awheel loses grip on a slippery road
• when the power steering works at reduced power - e.g. during cooling due to overheat- ing (see section "Speed-dependent steeringforce").
A message in the center display will explain whythe parking sequence was cancelled.
CAUTION
Under certain circumstances, PAP may not be able to find parking spaces – one reason maybe that the sensors are disrupted by externalsound sources that emit the same ultrasonicfrequencies that the system works with. Examples of such sources include horns, wet tires on asphalt, pneumatic brakes, exhaustnoise from motorcycles, etc.
127 Park Assist Pilot

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STARTING AND DRIVING
444
Minimum octane
Decals
Sample fuel pump octane label6
.
Decal on the inside of the fuel filler flap on cars that require premium fuel 7
.
TOP TIER Detergent GasolineVolvo endorses the use of "TOP TIER Detergent Gasoline" where available to help maintainengine performance and reliability. TOP TIERDetergent Gasoline meets a new standard jointlyestablished by leading automotive manufacturesto meet the needs of today's advanced engines.Qualifying gasoline retailers (stations) will, inmost cases, identify their gasoline as having metthe "TOP TIER Detergent Gasoline" standards.
NOTE
Information about TOP TIER Detergent Gaso- line is available at www.toptiergas.com.
NOTE
When switching to higher octane fuel or changing gasoline brands, it may be neces-sary to fill the tank more than once before adifference in engine operation is noticeable.
Fuel FormulationsDo not use gasoline that contains lead or manga- nese as a knock inhibitor, and do not use leadadditives. Besides damaging the exhaust emis-sion control systems on your vehicle, lead hasbeen strongly linked to certain forms of cancer. Many fuels contain benzene as a solvent.Unburned benzene has been strongly linked tocertain forms of cancer. If you live in an areawhere you must fill your own gas tank, take pre-cautions. These may include: •
standing upwind away from the filler nozzle while refueling
• refueling only at gas stations with vaporrecovery systems that fully seal the mouth ofthe filler neck during refueling
• wearing neoprene gloves while handling afuel filler nozzle.
Use of AdditivesWith the exception of gas line antifreeze duringwinter months, do not add solvents, thickeners, orother store-bought additives to your vehicle'sfuel, cooling, or lubricating systems. Overuse maydamage your engine, and some of these additivescontain organically volatile chemicals. Do notneedlessly expose yourself to these chemicals.
WARNING
Never carry a cell phone that is
switched on
while refueling your vehicle. If the phone rings, this may cause a spark that could ignite gaso-line fumes, resulting in fire and injury.
6 AKI (Anti Knock Index) is an average value of RON (Research Octane Number) and MON (Motor Octane Number) - (RON)+(MON)/2
7 For supplementary information - see the car's Service and Warranty Booklet.

STARTING AND DRIVING
* Option/accessory.
446
Overheating of engine andtransmission
In demanding driving conditions, such as driving in mountainous areas or hot weather, there is arisk of the engine or transmission overheating,especially when carrying heavy loads.
• Engine power may be temporarily limited.
• Remove any auxiliary lights mounted in front of the grille when driving in hot weather.
• If the temperature in the engine's coolingsystem becomes too high, a warning symbolwill appear in the instrument panel along with the message
Engine temperature High
temperature Stop safely. Pull over to a
safe location and let the engine idle for a few minutes to cool down.
• If the message
Engine temperature High
temperature Turn off engine or Engine
coolant Level low, turn off engine is dis-
played, stop the vehicle and turn off the engine.
• If the transmission begins to overheat, analternative gear shifting program will beselected. An integrated protective functionwill also be activated, the warning symbol will illuminate and the message
Transmission
warm Reduce speed to lower
temperature or Transmission hot Stop
safely, wait for cooling will be displayed in
the instrument panel. Follow the recommen- dations given by reducing speed or stopping the vehicle safely and letting the engine idle for a few minutes to let the transmissioncool.
• If the vehicle begins to overheat, the air con-ditioning may be temporarily switched off.
• After a prolonged period of driving indemanding conditions, do not turn off theengine immediately after stopping.
NOTE
It is normal for the engine's cooling fan to operate for a short time after the engine isswitched off.
Symbols in the instrument panel
SymbolMeaning
High engine temperature. Follow the recommendations provided.
Low coolant level. Follow the rec- ommendations provided.
Transmission hot/overheated/cool- ing. Follow the recommendationsprovided.
Related information
• Refilling coolant (p. 590)
• Driving with a trailer (p. 449)
• Preparing for a long trip (p. 439)
• Gear indicator
* (p. 422)

LOADING, STORAGE AND PASSENGER COMPARTMENT
* Option/accessory.563
WARNING
•Only use accessories that are not dam- aged or malfunctioning. The accessoriesmust be designed for 120 V and 60 Hz,with plugs intended for the outlet. Theaccessories must be CE marked, ULmarked or have an equivalent safetymarking.
• New let outlets, plugs or accessoriescome into contact with water or anotherfluid. Do not touch or use the outlet if itappears damaged or has been in contactwith water or another fluid.
• Do not connect power strips, adapters orextension cords to the outlet has thiscould cause the outlet's safety functionsto malfunction.
• The outlet is equipped with a pet guard.Make sure that no one picks at or dam-ages the outlet in such a way that theguard is disabled. Children should not beleft unsupervised in the vehicle when theoutlet is active.
Failure to follow the above could lead to severe or fatal electrical shocks.
Related information
• Electrical outlets (p. 560)
• Passenger compartment interior (p. 558)
Using the glove compartment
The glove compartment is located on the pas- senger side. The glove compartment can beused to store the Owner's Manual, maps, etc.There is also room for a pen and a card holder.
Glove compartment and opening button on the center console.
The glove compartment is opened by pressing the opening button in the center console.
Locking and unlocking the glove box
The glove compartment can be locked ("private locking") when the vehicle is left at a workshop,hotel, etc. When private locking is activated, thetailgate is also locked.
Using the glove box as a cooled area *
The glove compartment can be used to cool e.g. drinks or food. Cooling is possible when the cli- mate system is active (i.e. when the ignition is in mode II or when the engine is running).
The illustration is generic – the design may vary.
Activate cooling
Deactivate cooling
–Activate or deactivate cooling by moving the control as far as possible toward the passen-ger compartment/glove compartment.
Related information
• Passenger compartment interior (p. 558)
• Private Locking (p. 264)

MAINTENANCE AND SERVICE
}}
587
Engine compartment overview
This overview shows some service-related com- ponents.
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 behindthe radiator) may start or continue runningautomatically up to about 6 minutes after theengine 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 offire.
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. 585)
• Filling washer fluid (p. 632)
• Refilling coolant (p. 590)
• Fuses in the engine compartment (p. 605)
• Checking and filling engine oil (p. 588)
• Ignition modes (p. 407)
Engine oil
For the recommended service intervals and war- ranties to be applied, an approved engine oilmust be used.
Volvo recommends:
11 Fill the washer fluid at regular intervals, e.g. when refueling.

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MAINTENANCE AND SERVICE
590
NOTE
If the conditions for measuring oil level are not properly fulfilled (time after engine shut-down, vehicle inclination, ambient tempera- ture, etc.) the message
No value availablewill be shown in the center display. This does not mean that anything is wrong in the vehi-
cle systems.
Related information
• Engine oil (p. 587)
• Engine oil specifications (p. 644)
• Ignition modes (p. 407)
• Vehicle status (p. 580)
Refilling coolant
Coolant helps keep the combustion engine at the right operating temperature. The heat trans-ferred from the engine to the coolant can beused to warm the passenger compartment.
When refilling coolant, follow the instructions on the package. Never fill the cooling system withonly water. The risk of freezing is increased withtoo low or too high amounts of coolant. If there is coolant under the vehicle, smoke from the cooling system, or if more than 2 liters (about2 quarts) of coolant has been added to the sys-tem, there could be something wrong with thecooling system and starting the vehicle coulddamage the engine. Call a tow truck and do notattempt to start the engine.
WARNING
The coolant may be very hot. Never unscrew the cap when the coolant is hot. If coolantmust be filled, unscrew the expansion tankcap slowly to relieve overpressure.
Coolant expansion tank.

MAINTENANCE AND SERVICE
}}
591
Lift the rubber strip by pressing it inward into the engine compartment.
Remove the plastic cover by folding out the catch and lifting the cover upward.
Unscrew the expansion tank cap and fill coolant as needed. The level should be between the MIN and MAX marks on the
expansion tank.
CAUTION
• Mix the coolant with water of acceptable quality. If you are unsure of the quality ofthe water, use a Volvo-recommendedpremixed coolant.
• Make sure the coolant mixture is 50%water and 50% coolant.
• Only use coolants with corrosion protec-tion recommended by Volvo.
• To help ensure sufficient corrosion pro-tection in the system, only use new cool-ant when replacing larger components inthe cooling system.
• Never run the engine unless the coolingsystem is properly filled. An improperlyfilled cooling system could lead to hightemperatures and cracks in the cylinderheads.
• High levels of chlorine, chlorides andother salts may cause corrosion in thecooling system.
Related information
•
Engine compartment overview (p. 587)
• Coolant specifications (p. 645)
Replacing bulbs
The bulbs in the halogen headlights can be changed without the help of a workshop. Halogen headlights are not available on all mod- els and markets. Contact a Volvo retailer formore information. LED 13
bulbs must be replaced by a workshop.
An authorized Volvo workshop is recommended.
NOTE
For information on lights not mentioned in this article, contact a Volvo dealer or a certi-fied Volvo service technician.
The headlight bulbs can be replaced without the assistance of a workshop, but before a bulb canbe replaced, the plastic cover over the headlightneeds to be removed. The low beam lights will be accessible when the headlight's round rubber cover has beenremoved. The bulbs of the turn signals, high beam and day- time running lights/parking lights are accessibleonce the rectangular headlight cover has beenremoved.
13 LED (Ligth Emitting Diode)