service VOLVO S90 2018 Owner´s Manual

MAINTENANCE AND SERVICE
}}
557
Opening and closing the hood To open the hood, pull the lever in the passen- ger compartment and then turn the handle underthe hood.
Opening the hood
Pull the lever near the pedals to release the hood from its fully closed position.
Turn the handle under the front edge of the hood counterclockwise to release the catchand lift the hood.
Warning - hood not closedWhen the hood is released, a warningsymbol and graphic will be displayed inthe instrument panel and an audiblesignal will sound. If the vehicle begins
to roll, the audible signal will be repeated severaltimes.
NOTE
If the warning symbol is illuminated or an audible warning signal sounds even thoughthe hood is securely closed, consult a work-shop - an authorized Volvo workshop is rec-ommended.
Closing the hood1. Press down the hood until it begins to close under its own weight.
2. When the hood reaches the catch at the handle in the front edge of the vehicle, press down on the hood to close it completely.
WARNING
Risk of injury! When closing, make sure that the hood is completely unobstructed and thatno one can be injured.
WARNING
Make sure the hood locks securely after clos- ing. It must audibly lock on both sides.
Hood not completely closed. The illustration is generic - details may vary according to vehicle model.

||
MAINTENANCE AND SERVICE
* Option/accessory.
558
Hood completely closed. The illustration is generic - details may vary according to vehicle model.
WARNING
Never drive with the hood open! If there are any indications while driving that the hood is not completely closed, stop imme-diately and close it securely.
Related information
• Engine compartment overview (p. 559)
• Door and seat belt reminders (p. 51)
Climate control system service Service and repairs on the air conditioning sys- tem should only be done by an authorized work-shop.
Troubleshooting and repairsThe air conditioning system contains a fluores- cent tracer substance. Ultraviolet light is used tosearch for leaks in the system. Volvo recommends contacting an authorized Volvo workshop.
Vehicles with R134a refrigerant
WARNING
The air conditioning system contains the refrigerant R134a under pressure. Serviceand repairs to the system should only be doneby an authorized workshop.
Related information
•Volvo's service program (p. 548)
Replacing a windshield with head-
up display
*
Vehicles with a head-up display have a special type of windshield that meets the requirementsfor displaying projected information.
Volvo recommends contacting an authorized Volvo workshop for assistance replacing thewindshield. The correct type of replacementwindshield must be used in order for the head-updisplay to function properly.
Related information
• Head-up display
* (p. 140)
• Cleaning the head-up display
* (p. 591)

MAINTENANCE AND SERVICE
}}
559
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. 557)
• Filling washer fluid (p. 606)
• Refilling coolant (p. 562)
• Fuses in the engine compartment (p. 580)
• Checking and filling engine oil (p. 560)
• Ignition modes (p. 397)
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.

||
MAINTENANCE AND SERVICE
560If the engine oil is not checked regularly and the level becomes low, this could cause seriousengine damage.
CAUTION
To satisfy the requirements for the engine's service intervals, all engines are factory-filledwith a specially adapted synthetic engine oil.Great care has been put into the choice of oil,with consideration given to service life, starta-bility, fuel consumption and environmentalimpact. For the recommended service intervals to apply, an approved engine oil must be used.Only use the prescribed oil grade to top off orchange the oil. Otherwise, there is a risk ofthe vehicle's service life, startability, fuel con-sumption and environmental impact beingaffected. Failure to use engine oil of the prescribed grade and viscosity could cause damage toengine-related components. Volvo Car Corpo-ration disclaims warranty liability for such typeof damage. Volvo recommends entrusting oil changes to an authorized Volvo workshop.
Volvo uses different systems to warn if the oil level is too low/high or the oil pressure is low. Onengine variants with an oil pressure sensor, a
warning symbol is displayed in the instrument panel when oil pressure is low
. On engine
variants with an oil level sensor, the
warn-
ing symbol in the instrument panel and display messages are used to alert the driver. Someengine variants have both systems. Contact aVolvo retailer for more information. Change the engine oil and oil filter according to the schedule specified in the Warranty and Main-tenance Records Information booklet. Oils of ahigher grade than that specified may be used. Ifthe vehicle is driven in adverse conditions, Volvorecommends using an oil with a higher gradethan that specified.
Related information
• Checking and filling engine oil (p. 560)
• Engine oil specifications (p. 618)
Checking and filling engine oil
The engine oil level is monitored by an electronic oil level sensor.

MAINTENANCE AND SERVICE
}}
561
Filler pipe12
.
It may be necessary to top up engine oil between regularly scheduled services. No action is necessary with regard to engine oil level until a message appears in the instrumentpanel.
WARNING
If this symbol is shown together with the message Engine oil level
Service required, visit a workshop
– an authorized Volvo workshop is
recommended. The oil level may be too high.
CAUTION
If this symbol is shown together with a message about low oil level, for example
Engine oil level low
Refill 1 liter, fill only with the indi-
cated volume, e.g. 1 liter (1 quart).
WARNING
Do not spill oil on the hot exhaust pipes as this could cause a fire.
Viewing oil level in the center displayThe oil level can be viewed using the electronic oil level gauge in the center display once thevehicle has been started. The oil level should bechecked regularly.
1. Open the Car status app from App view in
the center display.
2. Tap
Status to display the oil level.
Oil level graphic in the center display.
NOTE
The system cannot directly detect changes when the oil is filled or drained. The vehiclemust have been driven approximately 30 km(20 miles) and have been stationary5 minutes on a level surface and with theengine off before the correct oil level will bedisplayed.
12
Engines with an electronic oil level sensor do not have a dipstick.

||
MAINTENANCE AND SERVICE
562
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. 559)
• Engine oil specifications (p. 618)
• Ignition modes (p. 397)
• Vehicle status (p. 552)
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, left-hand drive vehicle.

MAINTENANCE AND SERVICE
}}
563
Unscrew the cover in the plastic covering.
Unscrew the expansion tank cap and fill coolant as needed. The level should not exceed the yellow MAX mark inside the
expansion tank.
Put the components back in place in the reverse order.
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. 559)
• Coolant specifications (p. 619)
Replacing bulbs
The bulbs in the halogen headlights and rear fog light can be changed without the help of a work-shop. 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. If you are experiencing problems with any lights other than light bulbs, contact a workshop 14
. If
there is a problem with an LED 13
light, the entire
lamp unit will normally need to be replaced.
WARNING
The vehicle electrical system must be in igni- tion mode 0 when bulbs are replaced.

||
MAINTENANCE AND SERVICE
* Option/accessory.
564
CAUTION
Never touch the bulb glass with your bare fin- gers. Grease and oils from your fingers vapor-ize in the heat and will leave a deposit on thereflector, which may damage it.
NOTE
If the error message persists after the defec- tive bulb has been replaced, we recommend avisit to an authorized Volvo workshop.
NOTE
Exterior lighting such as headlights and tail- lights may develop temporary condensationon the inside of the lens. This is normal. Allexterior lighting is designed to resist this.Condensation is normally vented out of thelamp housing once the light has been lit forsome period of time.
NOTE
Bulbs for active curve lighting * contain traces
of mercury and should therefore always be submitted to a certified Volvo service techni-cian.
Related information
• Location of exterior lights (p. 565)
• Removing the plastic cover to replace bulbs (p. 564)
• Replacing the low beam headlight bulbs(p. 566)
• Replacing the high beam headlight bulbs(p. 567)
• Replacing daytime running lights/front park-ing light bulbs (p. 567)
• Replacing front turn signal bulbs (p. 568)
• Replacing the rear fog light bulb (p. 569)
• Bulb specifications (p. 572)
Removing the plastic cover toreplace bulbs
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.
–Release the pins in the plastic cover's four clips by pressing them down with a screw-driver or similar object and remove the cover-ing.
13 LED (Ligth Emitting Diode)
14 An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE
}}
* Option/accessory.565
NOTE
To bear in mind when refitting the covering:
• The pin in the clip must be pressed back completely before the clip is reinstalled inthe covering.
• When the covering is reinstalled, the pinmust be pressed in until the end surfaceis level with the surface of the clip.
Related information
• Replacing bulbs (p. 563)
• Replacing the low beam headlight bulbs (p. 566)
• Replacing the high beam headlight bulbs(p. 567)
• Replacing daytime running lights/front park-ing light bulbs (p. 567)
• Replacing front turn signal bulbs (p. 568)
• Bulb specifications (p. 572)
Location of exterior lights
The vehicle's exterior lighting consists of several different bulbs. LED 15
bulbs must be replaced
by a workshop. An authorized Volvo workshop is recommended.
Front bulbs (vehicles with halogen headlights)
Low beams
High beams
Daytime running light/parking light
Turn signal
Front fog light/cornering illumination *
(LED 15
)
Rear bulbs
Fog light
Parking light (LED) 15
Turn signal16
Parking light (LED)
Brake light (LED)
Parking light (LED)
Backup light
16
Brake light
‒ central, high-mounted (LED)
15
LED (Light Emmitting Diod)
16 Contact a workshop for replacement ‒ an authorized Volvo workshop is recommended.

||
MAINTENANCE AND SERVICE
566
Related information
•Replacing bulbs (p. 563)
• Bulb specifications (p. 572)
• Lighting panel and controls (p. 150)
Replacing the low beam headlightbulbs
The low beam bulbs in the halogen headlights can be changed without the help of a workshop.
Before the bulbs can be replaced, the plastic cov- ering over the headlight must be removed.
CAUTION
Never touch the bulb glass with your bare fin- gers. Grease and oils from your fingers vapor-ize in the heat and will leave a deposit on thereflector, which may damage it.
Left headlight.
1. Remove the low beam rubber cover from the headlight housing.
2. Remove the connector from the bulb. 3. Remove the bulb by pressing it slightly
upward and then pulling it out.
4. Insert the new bulb in the socket. The bulb's guiding pin should point straight up.
5. Press the connector into place.
6. Put the rubber cover back in place.
Related information
• Location of exterior lights (p. 565)
• Removing the plastic cover to replace bulbs (p. 564)
• Bulb specifications (p. 572)