2018 VOLVO S90 lights

STARTING AND DRIVING
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Emission controls
Three-way catalytic converter
•Keep your engine properly tuned. Certain engine malfunctions, particularly involving theelectrical, fuel or distributor ignition systems,may cause unusually high three-way catalyticconverter temperatures. Do not continue tooperate your vehicle if you detect enginemisfire, noticeable loss of power or otherunusual operating conditions, such as engineoverheating or backfiring. A properly tunedengine will help avoid malfunctions thatcould damage the three-way catalytic con-verter.
• Do not park your vehicle over combustiblematerials, such as grass or leaves, which cancome into contact with the hot exhaust sys-tem and cause such materials to ignite undercertain wind and weather conditions.
• Excessive starter cranking (in excess of oneminute), or an intermittently firing or floodedengine can cause three-way catalytic con-verter or exhaust system overheating.
• Remember that tampering or unauthorizedmodifications to the engine, the Engine Con-trol Module, or the vehicle may be illegal andcan cause three-way catalytic converter orexhaust system overheating. This includes:altering fuel injection settings or compo-nents, altering emission system components or location or removing components, and/orrepeated use of leaded fuel.NOTE
Unleaded fuel is required for vehicles with three-way catalytic converters.
Heated oxygen sensorsThe heated oxygen sensors monitor the oxygen content of the exhaust gases. Readings are fedinto a control module that continuously monitorsengine functions and controls fuel injection. Theratio of fuel to air into the engine is continuouslyadjusted for efficient combustion to help reduceharmful emissions.
Related information
•
Octane rating (p. 429)
• Fuel (p. 428)
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

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STARTING AND DRIVING
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432 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. 562)
• Preparing for a long trip (p. 425)
• Gear indicator
* (p. 412)
Battery drain The electrical functions in the vehicle drain the battery to varying degrees. Avoid using ignitionmode II when the engine is switched off. Use
ignition mode I instead, as this uses less electri-
cal current.
Note that certain accessories may also drain power from the electrical system. Do not usefunctions that use a lot of electrical current whenthe engine is turned off. Examples of such func-tions are:
• blower
• headlights
• windshield wipers
• audio system (especially at high volume).
If the starter battery voltage is low, a message isshown in the driver display. The vehicle's energy-saving function will then turn off or reduce certainfunctions, such as the blower and/or the audio system.
–Charge the battery by starting the engine and let it run for at least 15 minutes (drivingcharges the battery faster than letting theengine idle).
Related information
• Start battery (p. 573)
• Ignition modes (p. 397)

MAINTENANCE AND SERVICE
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Emission inspection readiness
How do states use OBD II for emission
inspections?
Many states connect a computer directly to a vehicle's OBD II system. The inspector can thenread "faults." In some states, this type of inspec-tion has replaced the tailpipe emission test.
How can my vehicle fail OBD II emission
inspection?
Your vehicle can fail OBD II emission inspection for any of the following reasons:
• If your Check Engine (MIL) light is lit, yourvehicle may fail inspection.
• If your vehicle's Check Engine light was lit,but went out without any action on your part,OBD II will still have a recorded fault. Yourvehicle may pass or fail, depending on theinspection practices in your area.
• If you had recent service that required dis-connecting the battery, OBD II diagnosticinformation may be incomplete and "notready" for inspection. A vehicle that is notready may fail inspection.
How can I prepare for my next OBD II
emission inspection?
• If your Check Engine (MIL) light is lit - or was lit but went out without service, have your vehicle diagnosed and, if necessary, servicedby a qualified Volvo technician.
• If you recently had service for a lit CheckEngine light, or if you had service thatrequired disconnecting the battery, a periodof driving is necessary to bring the OBD IIsystem to "ready" for inspection. Two half-hour trips of mixed stop-and-go/highwaydriving are typically needed to allow OBD II toreach readiness. Your Volvo retailer can pro-vide you with more information on planning atrip.
• Maintain your vehicle in accordance with yourvehicle's maintenance schedule.
Owner maintenancePeriodic maintenance requirements and intervalsare described in your vehicle's Warranty andService Records Information booklet. The following points can be carried out between the normally scheduled maintenance services.
Each time the car is refueled:
•Check the engine oil level.
• Clean the windshield, windshield wipers, headlights, and taillights.
Monthly:
• Check cold tire pressure in all tires. Inspect the tires for wear.
• Check that engine coolant and other fluidlevels are between the indicated "min" and"max" markings.
• Clean interior glass surfaces with a glasscleaner and soft paper towels.
• Wipe driver information displays with a softcloth.
• Visually inspect battery terminals for corro-sion. Corrosion may indicate a loose terminalconnector, or a battery near the end of itsuseful service life. Consult your Volvo retailerfor additional information.
As needed:
Wash the car, including the undercarriage, to reduce wear that can be caused by a buildup ofdirt, 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 placeswhere they may collect.
NOTE
Complete service information for qualified technicians is available online for purchase orsubscription at www.volvotechinfo.com.

MAINTENANCE AND SERVICE
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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.

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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.

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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.

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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)

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Replacing the high beam headlightbulbs
The high 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 high beam rubber cover from the headlight housing.
2. Remove the bulb by turning the bulb holder upward and then pulling it straight out. 3. Carefully pry the plastic sleeve by the con-
nector's locking lug to release it.
4. Remove the connector from the bulb.
5. Replace the bulb.
6. Position the bulb in the socket and turn it downward.
7. 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)
Replacing daytime running lights/front parking light bulbs
The daytime running light/parking light bulbs in the halogen headlights can be changed withoutthe help of a workshop.
Before the bulbs can be replaced, the plastic cov- ering over the headlight must be removed.
NOTE
Daytime running lights/parking lights are eas- ier to reach if the high beam headlight bulbsare removed. The high beam headlights aremounted above and to the side of the daytimerunning lights/parking lights. Remove thehigh beam headlight bulb by turning the bulbholder upward and then pulling it straight out.
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.