check engine VOLVO S90 2020 Quick Guide

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STARTING AND DRIVING
* Option/accessory.
412
WARNING
Never turn off the engine while the vehicle is moving, e.g. when driving downhill. Thisdeactivates certain important systemssuch as power steering and brakes.
Other factors that decrease fuel consumption
Dirty air cleaner.
Dirty engine oil and clogged oil filter.
Incorrect front-end alignment.
Incorrect wheel alignment.
Some of the above items and others are checked as part of Volvo's standard mainte-nance schedule.
Related information
Drive-E
‒ purer driving pleasure (p. 28)
Eco drive mode (p. 401)
Checking tire pressure (p. 507)
Preparing for a long trip
It is important to have the vehicle's systems and equipment checked carefully before driv-ing long distances.
Check that
the engine is running properly and that fuel consumption is normal
there are no leaks (fuel, oil or other fluid)
the brake pedal is functioning properly
all lights are working
‒ adjust the head-
light height if the vehicle is carrying aheavy load
tire tread depth and air pressure are atcorrect levels. Change to snow tires whendriving in areas where there is a risk ofsnowy or icy roads
the start battery is sufficiently charged
the wiper blades are in good condition
Related information
Checking tire pressure (p. 507)
Filling washer fluid (p. 607)
Winter driving (p. 412)
Economical driving (p. 411)
Vehicle modem settings (p. 483)
Loading recommendations (p. 538)
Pilot Assist
* (p. 285)
Tire sealing system (p. 523)
Winter driving
It is important to check the vehicle before driving in cold/snowy conditions to makesure it can be driven safely.
Before the cold season arrives: Make sure the engine coolant contains 50% antifreeze. This mixture helps pro-tect the engine from frost erosion down toapprox. –35 °C (–31 °F). Do not mix dif-ferent types of antifreeze as this couldpose a health risk.
Keep the fuel tank well filled to preventcondensation from forming.
Check the viscosity of the engine oil. Oilwith low viscosity (thinner oil) improvescold-weather starting and reduces fuelconsumption when driving with a coldengine.
CAUTION
Low-viscosity oil should not be used with hard driving or in hot weather.
Check the condition and charge level of the start battery. Cold weather placesgreater demands on the start battery andreduces its capacity.
Use washer fluid containing antifreeze tohelp prevent ice from forming in thewasher fluid reservoir.

STARTING AND DRIVING
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Slippery driving conditionsTo help optimize traction and roadholding, Volvo recommends using snow tires on allwheels whenever there is a risk of snow or iceon the road.
NOTE
Certain countries require use of winter tires by law. Not all countries permit the use ofstudded tires.
Practice driving on slippery surfaces under controlled conditions to learn how the vehiclereacts.
Related information
Snow tires (p. 521)
Snow chains (p. 522)
Braking on salted roads (p. 385)
Braking on wet roads (p. 384)
Filling washer fluid (p. 607)
Start battery (p. 567)
Replacing windshield wiper blades(p. 605)
Refilling coolant (p. 556)
Driving through standing water
It may be necessary to drive the vehicle through standing water, e.g. deep puddles orflooding on the road. This must be done withgreat caution.
The vehicle can be driven through water up to a depth of 25 cm (9 in) at no more than walk-ing speed. Be particularly careful when drivingthrough flowing water. When driving through standing water, drive slowly and do not stop the vehicle. When youhave passed the water, press lightly on thebrake pedal and check that the brakes arefunctioning properly. Water, mud, slush, etc.can make the brake linings slippery, resultingin delayed braking effect. If the vehicle is equipped with contacts for an electric heater or trailer coupling, cleanthese after driving in water or mud.
Do not allow the vehicle to stand in waterup to the sills any longer than absolutelynecessary. This could result in electricalmalfunctions.
CAUTION
Engine damage could occur if water enters the air cleaner.
If water enters the transmission, thelubricating ability of the oils is reducedand the service life of these systems isshortened.
Damage to any component, engine,transmission, turbocharger, differentialor its internal components caused byflooding, vapor lock or insufficient oil isnot covered under warranty.
If the engine stalls while the vehicle isin water, do not attempt to restart it.Have the vehicle towed out of thewater to a workshop. An authorizedVolvo workshop is recommended. Riskof engine failure.
CAUTION
Because it can be difficult to determine the water depth, Volvo recommends not driv-ing through standing or running water. Thedriver is always responsible for operatingthe vehicle in a safe manner and adheringto all applicable laws and regulations.
Related information
Recovery (p. 425)

STARTING AND DRIVING
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415
2. Insert the funnel into the fuel filler pipe's
opening. There are two flaps just inside the fuel filler pipe and the tube section ofthe funnel must push both of these flapsopen before fuel can be added.
WARNING
California Proposition 65 Operating, servicing and maintaining a pas- senger vehicle can expose you to chemi-cals including engine exhaust, carbon mon-oxide, phthalates, and lead, which areknown to the State of California to causecancer and birth defects or other reproduc-tive harm. To minimize exposure, avoidbreathing exhaust, do not idle the engineexcept as necessary, service your vehicle ina well ventilated area and wear gloves orwash your hands frequently when servicingyour vehicle. For more information go towww.P65Warnings.ca.gov/passenger-vehicle.
Related information
Opening/closing the fuel filler door (p. 414)
Fuel (p. 415)
Fuel
Volvo recommends the use of detergent gas- oline to control engine deposits.
Deposit control gasoline (gasoline with detergent additives)
Detergent gasoline is effective in keeping injectors and intake valves clean. Consistentuse of deposit control gasolines will helpensure good driveability and fuel economy. Ifyou are not sure whether the gasoline containsdeposit control additives, check with the serv-ice station operator.
NOTE
Volvo recommends not using external fuel injector cleaning systems, e.g. do not adddetergent additives to gasoline before orafter refueling.
Unleaded fuelAll Volvo vehicles have a three-way catalytic converter and must only use unleaded gaso-line. US and Canadian regulations require thatpumps delivering unleaded gasoline arelabeled "UNLEADED". Only the nozzles ofthese pumps will fit in your vehicle's fuel fillerinlet. It is unlawful to dispense leaded fuel intoa vehicle labeled "unleaded gasoline only".Leaded gasoline damages the three-way cata-lytic converter and the heated oxygen sensor system. Repeated use of leaded gasoline willlessen the effectiveness of the emission con-trol system and could result in loss of emissionwarranty coverage. State and local vehicleinspection programs will make detection ofmisfueling easier, possibly resulting in emis-sion test failure for misfueled vehicles.
NOTE
Some U.S. and Canadian gasolines contain an octane enhancing additive calledmethyl-cyclopentadienyl manganese tricar-bonyl (MMT). If such fuels are used, yourEmission Control System performancemay be affected, and the Check EngineLight (malfunction indicator light) locatedon your instrument panel may light. If thisoccurs, please return your vehicle to atrained and qualified Volvo service techni-cian for service.
Gasoline containing alcohol and ethers, "Oxygenated fuels"
Some fuel suppliers sell gasoline containing "oxygenates" which are usually alcohols orethers. In some areas, state or local lawsrequire that the service pump be marked indi-cating use of alcohols or ethers. However,there are areas in which the pumps areunmarked. If you are not sure whether there isalcohol or ethers in the gasoline you buy,check with the service station operator. To

STARTING AND DRIVING
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Selecting ignition mode (p. 382)
Support battery (p. 571)
Towing using a towline
This section refers to one vehicle being towed behind another using a towline.
Before towing another vehicle, check applica- ble speed limit regulations.
Preparations and towing
CAUTION
Vehicles with the small gear selector can- not shift out of the P position when theengine is off. Contact an authorized Volvoworkshop or a professional towing com-pany for assistance towing the vehicle.
CAUTION
Note that the vehicle must always be towed with the wheels rolling forward.
Do not tow a vehicle with automatictransmission at a speed greater than80 km/h (50 mph) or for a distancegreater than 80 km (50 miles).
WARNING
Ignition mode
II must be active – all
airbags are deactivated in ignition mode I.
Always have the remote key in thevehicle when it is towed.
WARNING
The brake and steering servos do not work when the engine is off – it takesabout 5 times more pressure on the brakepedal and steering requires much moreeffort than normal.
1. Turn on the hazard warning flashers.
2. Attach the towline to the towing eyelet.
3. Put the vehicle in ignition mode II – with-
out pressing the brake pedal, turn the start knob clockwise and hold it there for about4 seconds. Release the knob, which willautomatically return to its original position.
4. Move the gear selector to neutral (N) and release the parking brake. If the battery charge level is too low, it may not be possible to release the parkingbrake. Connect an auxiliary battery to thevehicle if the battery is discharged.
> The towing vehicle can now start driv-ing.

WHEELS AND TIRES
523
Tire sealing system14
The temporary tire sealing system can be used to seal a puncture in a tire or to checkand adjust the pressure in the tire. Models equipped with a spare wheel 15
do not
have the tire sealing system.
WARNING
California Proposition 65 Operating, servicing and maintaining a pas- senger vehicle can expose you to chemi-cals including engine exhaust, carbon mon-oxide, phthalates, and lead, which areknown to the State of California to causecancer and birth defects or other reproduc-tive harm. To minimize exposure, avoidbreathing exhaust, do not idle the engineexcept as necessary, service your vehicle ina well ventilated area and wear gloves orwash your hands frequently when servicingyour vehicle. For more information go towww.P65Warnings.ca.gov/passenger-vehicle.
The tire sealing system consists of a compres- sor 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 maynot be able to fully seal tires with punctu-res in the sidewall. Do not use the tire seal-ing system on tires with large tears, cracksor 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 trunk.
Sealing compound expiration dateThe sealing compound bottle must be replaced if its expiration date has passed (seethe decal on the bottle). Handle the old bottleas hazardous waste.
Related information
Using the tire sealing system (p. 524)
Inflate tires with the compressor includedin the tire sealing system (p. 527)
Tires (p. 500)
14
Certain models only.
15 Not available on all models.

WHEELS AND TIRES
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527
16. Check the inflation pressure on the air
pressure gauge.
If the pressure is under 1.3 bar (19 psi), the tire is not sufficiently sealed. Thevehicle should not be driven. Call road-side assistance to have the vehicletowed.
If the inflation pressure is higher than1.3 bar (19 psi), the tire must be inflatedto the inflation pressure specified onthe tire pressure decal on the driver'sside door pillar (1 bar = 100 kPa =14.5 psi). If the inflation pressure is toohigh, use the air release valve to releaseair.
WARNING
Check inflation pressure regularly.
Volvo recommends driving to the nearest authorized Volvo workshop to have the tirereplaced/repaired. Inform the workshop thatthe tire contains sealing compound. The sealing compound bottle and the hose must be replaced after use. Volvo recom-mends contacting an authorized Volvo work-shop for replacement.
WARNING
After using the tire sealing system, the vehicle should not be driven farther thanapproximately 200 km (120 miles).
NOTE
The compressor is an electric device. Fol- low local regulations for disposal.
Related information
Recommended tire pressure (p. 509)
Tire sealing system (p. 523)
Inflate tires with the compressor included in the tire sealing system (p. 527)
Inflate tires with the compressor included in the tire sealing system
The vehicle's original tires can be inflated using the compressor in the tire sealing sys-tem.
1. The compressor must be switched off. Make sure that the switch is in the 0 (Off)
position and take out the electrical cable and the hose.
2. Unscrew the tire's valve cap and screw the hose's valve connector as far as possi-ble onto the valve. Be sure the air release valve on the com- pressor's hose is completely closed.
3. Connect the electrical cable to the nearest 12 V outlet and start the vehicle.
WARNING
Inhaling exhaust fumes could lead to seri- ous injury. Never leave the engine runningin an enclosed space or a space withoutsufficient ventilation.
WARNING
Never leave children unattended in the vehicle while the engine is running.

MAINTENANCE AND SERVICE
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Volvo's service program To keep the vehicle as safe and reliable as possible, follow the Volvo service schedulespecified in the Warranty and MaintenanceRecords Information booklet.
WARNING
California Proposition 65 Operating, servicing and maintaining a pas- senger vehicle can expose you to chemi-cals including engine exhaust, carbon mon-oxide, phthalates, and lead, which areknown to the State of California to causecancer and birth defects or other reproduc-tive harm. To minimize exposure, avoidbreathing exhaust, do not idle the engineexcept as necessary, service your vehicle ina well ventilated area and wear gloves orwash your hands frequently when servicingyour vehicle. For more information go towww.P65Warnings.ca.gov/passenger-vehicle.
Volvo recommends having an authorized Volvo workshop perform service and mainte-nance. Volvo workshops have the staff, serviceliterature and special tools that can providethe highest quality of service.
CAUTION
To ensure the Volvo warranty is not invali- dated, check and follow the Warranty andService Records Information booklet.
IntroductionThe maintenance services contain several checks that require special instruments andtools and therefore must be performed by aqualified technician. To keep your Volvo in topcondition, specify time-tested and provenGenuine Volvo Parts and Accessories.
The Federal Clean Air Act - U.S.
The Federal Clean Air Act requires vehicle manufacturers to furnish written instructionsto the ultimate purchaser to assure the properservicing and function of the components thatcontrol emissions. These services, which arelisted in the "Warranty and Service RecordsInformation" booklet, are not covered by thewarranty. You will be required to pay for laborand material used.
Maintenance
Your Volvo passed several major inspections before it was delivered to you, in accordancewith Volvo specifications. The maintenanceprocedures outlined in the Warranty and Serv-ice Records Information booklet, many ofwhich will positively affect your vehicle's emis-sions, should be performed as indicated. It isrecommended that receipts for vehicle emis-sion maintenance be retained in case ques-tions arise concerning maintenance. Inspec-tion and maintenance should also be per-formed anytime a malfunction is observed orsuspected.
Applicable warranties - U.S./Canada
In accordance with applicable U.S. and Cana- dian regulations, the following list of warran-ties is provided. New Vehicle Limited Warranty
Parts and Accessories Limited Warranty
Corrosion Protection Limited Warranty
Seat Belt and Supplemental Restraint Systems Limited Warranty
Emission Design and Defect Warranty
Emission Performance Warranty
These are federal warranties; other warrantiesare provided as required by state/provinciallaw. Refer to your separate Warranty andService Records Information booklet fordetailed information concerning each of thewarranties.

MAINTENANCE AND SERVICE
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Periodic maintenance helps minimize emissions
NOTE
Refer to your Service and Warranty Booklet for a comprehensive serviceand maintenance schedule up to240,000 km (150,000 miles). Thisprogram contains inspections and ser-vices necessary for the proper functionof your vehicle and includes compo-nents that affect vehicle emissions.
The Warranty and Service RecordsInformation booklet also containsdetailed information concerning thewarranties that apply to your vehicle.
On-board Diagnostic SystemOBD II is part of your vehicle's computerized engine management system. It stores diag-nostic information about your vehicle's emis-sion controls. It can light the Check Enginelight (MIL) if it detects an emission control"fault." A "fault" is a component or systemthat is not performing within an expectedrange. A fault may be permanent or temporary.OBD II will store a message about any fault.
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 canthen read "faults." In some states, this type ofinspection has replaced the tailpipe emissiontest.
How can my vehicle fail OBD II emission
inspection?
Your vehicle can fail OBD II emission inspec- tion for any of the following reasons: If your Check Engine (MIL) light is lit, your vehicle may fail inspection.
If your vehicle's Check Engine light was lit,but went out without any action on yourpart, OBD II will still have a recorded fault.Your vehicle may pass or fail, dependingon the inspection 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,serviced by a qualified Volvo technician.
If you recently had service for a lit CheckEngine light, or if you had service thatrequired disconnecting the battery, aperiod of driving is necessary to bring theOBD II system to "ready" for inspection.Two half-hour trips of mixed stop-and-go/highway driving are typically needed toallow OBD II to reach readiness. YourVolvo retailer can provide you with moreinformation on planning a trip.
Maintain your vehicle in accordance withyour vehicle's maintenance schedule.
Owner maintenancePeriodic maintenance requirements and inter-vals are described in your vehicle's Warrantyand Service Records Information booklet. The following points can be carried out between the normally scheduled maintenanceservices.
Each time the vehicle is refueled:
Check the engine oil level.
Clean the windshield, windshield wipers, headlights, and taillights.

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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 asoft cloth.
Visually inspect battery terminals for cor-rosion. Corrosion may indicate a loose ter-minal connector, or a battery near the endof its useful service life. Consult your Volvoretailer for additional information.
As needed:
Wash the vehicle, including the undercarriage, to reduce wear that can be caused by abuildup of dirt, and corrosion that can becaused by salt residues. Clean leaves and twigs from air intake vents at the base of the windshield, and from other pla-ces where they may collect.
NOTE
Complete service information for qualified technicians is available online for purchaseor subscription at www.volvotechinfo.com.
Related information
Vehicle status (p. 546)
Scheduling service and repairs (p. 547)
Connecting equipment to the vehicle's data link connector (p. 37)
Technician certification (p. 38)
Climate control system service (p. 551)
Maintenance of the brake system (p. 385)
Engine compartment overview (p. 553)
Data transfer between vehicle and workshop over Wi-Fi
Volvo workshops have a designated Wi-Fi network for data transfer between your vehi-cle and the workshop. Your visit to the work-shop will be easier and more effective whendiagnostics information and software can betransferred over the workshop's network.
At the workshop, your service technician can connect your vehicle to the workshop's Wi-Finetwork to perform troubleshooting anddownload software. For this type of communi-cation, the vehicle only connects to a work-shop's network. It is not possible to connectthe vehicle to another Wi-Fi network (e.g. yourhome network) in the same way as to a work-shop's network.
Connecting with remote keyConnection is usually managed by the servicetechnician, who will use the remote key but-tons. It is therefore important to bring a keywith buttons with you when you visit theworkshop. Pressing the lock button on theremote key three times will connect the vehi-cle to the workshop's Wi-Fi network. When the car is connected to a Wi-Fi net- work, the
symbol appears in the center
display.

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MAINTENANCE AND SERVICE
* Option/accessory.
546
NOTE
Data downloading can affect other services such as transfer data, e.g. web radio. If theaffect on other services is experienced asproblematic, the download can be interrup-ted. Alternatively, it may be appropriate toswitch off or cancel other services.
NOTE
An update can be interrupted when the ignition is switched off and the vehicle isleft. However, the update does not have to be completed before the vehicle is left as theupdate is resumed the next time the vehi-cle is used.
Updating all system software–Select Install all at the bottom of the list.
To avoid displaying a list, select
Install all viaSystem updates.
Updating individual system software–Select Install to choose the software you
would like to download.
Canceling software download–Tap the checkbox in the activity indicator that replaced Install when the download
began. Note that only a download can be cancelled. An installation cannot be cancelled once it hasbegun.
Deactivating the background search for software update
Automatic searching for software updates is activated as the default factory setting, but thefunction can be deactivated. 1.
Tap
Settings in the center display's Top
view.
2. Tap
SystemDownload Center.
3. Tap to deselect
Auto Software Update.
Related information
Download Center (p. 545)
Internet-connected vehicle
* (p. 480)
Navigating in the center display's views (p. 112)
Vehicle status The vehicle's general status can be displayed in the center display along with the option to schedule service 3
.
The Car Status app is started
from the center display's App view and has four tabs:
Messages - status messages

Status – checking engine oil level and
AdBlue level 4

TPMS - tire inflation pressure check

Appointments - appointment information
and vehicle information 3
.
Related information
Handling messages saved from the instru- ment panel (p. 105)
Checking and filling engine oil (p. 555)
Tire pressure monitoring system
* (p. 509)
Scheduling service and repairs (p. 547)
Sending vehicle information to the work-shop (p. 548)
Navigating in the center display's views(p. 112)