2020 VOLVO S90 TWIN ENGINE low oil pressure

YOUR VOLVO
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Drive-E ‒ purer driving pleasure
Volvo is committed to the well-being of its customers. As a natural part of this commit-ment, we care about the environment inwhich we all live. Concern for the environ-ment means an everyday involvement inreducing our environmental impact.
Volvo's environmental activities are based on a holistic view, which means we consider theoverall environmental impact of a productthroughout its complete life cycle. In this con-text, design, production, product use, andrecycling are all important considerations. Inproduction, Volvo has partly or completelyphased out several chemicals including CFCs,lead chromates, asbestos, and cadmium; andreduced the number of chemicals used in ourplants 50% since 1991. Volvo was the first in the world to introduce into production a three-way catalytic converterwith a Lambda sond, now called the heatedoxygen sensor, in 1976. The current version ofthis highly efficient system reduces emissionsof harmful substances (CO, HC, NOx) from theexhaust pipe by approximately 95 - 99% andthe search to eliminate the remaining emis-sions continues. Volvo is the only automobilemanufacturer to offer CFC-free retrofit kits forthe air conditioning system of all models as farback as the 1975 model 240. Advanced elec-tronic engine controls and cleaner fuels arebringing us closer to our goal. In addition to continuous environmental refinement of con-ventional gasoline-powered internal combus-tion engines, Volvo is actively looking atadvanced technology alternative-fuel vehicles. When you drive a Volvo, you become our part- ner in the work to lessen the vehicle's impacton the environment. To reduce your vehicle'senvironmental impact, you can:
Maintain proper air pressure in your tires.Tests have shown decreased fuel econ-omy with improperly inflated tires.
Follow the recommended maintenanceschedule in your Warranty and ServiceRecords Information booklet.
Drive at a constant speed whenever possi-ble.
See a trained and qualified Volvo servicetechnician as soon as possible for inspec-tion if the check engine (malfunction indi-cator) light illuminates, or stays on afterthe vehicle has started.
Properly dispose of any vehicle-relatedwaste such as used motor oil, used batter-ies, brake pads, etc.
When cleaning your vehicle, please usegenuine Volvo car care products. All Volvocar care products are formulated to beenvironmentally friendly.
Twin Engine vehicles
If possible, precondition the vehicle withthe charging cable before driving.
If preconditioning is not possible in coldweather, use the seat and steering wheelheating primarily. Avoid heating the entirepassenger compartment, which reducesthe hybrid battery's charge level.
Choose the
Pure drive mode to help mini-
mize electric power consumption.
In hilly terrain, put the gear selector in mode
B to utilize the electric motor's
braking function when the acceleratorpedal is released. This helps charge thehybrid battery.
Related information
Economical driving (p. 428)
Starting and stopping preconditioning(p. 225)
Air quality (p. 200)

DISPLAYS AND VOICE CONTROL
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Warning symbols in the instrument panelThe warning symbols alert the driver that an important function is activated or that a seri-ous fault or error has occurred.
Symbol Meaning
WARNING The red warning symbol illumi- nates to indicate that a fault hasbeen detected that could affectsafety or driveability. An explana-tory message will be simultane-ously displayed in the instrumentpanel. The warning symbol mayalso illuminate in combinationwith other symbols.
Seat belt reminder This symbol will glow steadily or flash if the driver or front seatpassenger has not fastened theirseat belt or if anyone in the rearseat has removed their seat belt.
Symbol Meaning
Airbags If this symbol remains illumi- nated or comes on while driving,a fault has been detected in oneof the vehicle's safety systems.Read the message in the instru-ment panel. Volvo recommendscontacting an authorized Volvoworkshop.
A
B Fault in brake system If this symbol illuminates, the brake fluid level may be too low.Contact your nearest authorizedworkshop to have the brake fluidlevel checked and adjusted.
Symbol Meaning
A
B
Parking brake on This symbol glows steadily when the parking brake is applied. A flashing symbol indicates that a fault has occurred. Read themessage in the instrument panel.
Low oil pressure If this symbol illuminates while driving when the engine oil pres-sure is too low. Stop the engineimmediately and check theengine oil level. Add oil if neces-sary. If the symbol illuminatesand the oil level is normal, con-tact a workshop. Volvo recom-mends contacting an authorizedVolvo workshop.
Generator not charging This symbol illuminates during driving if a fault is detected in theelectrical system. Contact aworkshop. Volvo recommendscontacting an authorized Volvoworkshop.

STARTING AND DRIVING
* Option/accessory.
432
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. 527)
Filling washer fluid (p. 621)
Winter driving (p. 432)
Economical driving (p. 428)
Vehicle modem settings (p. 501)
Loading recommendations (p. 558)
Pilot Assist
* (p. 287)
Tire sealing system (p. 542)
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.
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. 541)
Snow chains (p. 541)
Braking on salted roads (p. 406)
Braking on wet roads (p. 405)
Filling washer fluid (p. 621)
Start battery (p. 579)
Replacing windshield wiper blades(p. 619)
Refilling coolant (p. 576)

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MAINTENANCE AND SERVICE
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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, haveyour 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 maintenance services.
Each time the vehicle 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 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. 567)
Scheduling service and repairs (p. 567)
Connecting equipment to the vehicle's data link connector (p. 37)
Technician certification (p. 38)
Climate control system service (p. 571)
Maintenance of the brake system (p. 406)
Engine compartment overview (p. 573)

MAINTENANCE AND SERVICE
574
Checking and filling engine oil (p. 575)
Ignition modes (p. 401)
Engine oil For the recommended service intervals and warranties to be applied, an approved engineoil must be used.
Volvo recommends:
If the engine oil is not checked regularly and the level becomes low, this could cause seri-ous engine damage.
CAUTION
To satisfy the requirements for the engine's service intervals, all engines are factory-filled with a specially adapted syntheticengine oil. Great care has been put into thechoice of oil, with consideration given toservice life, startability, fuel consumptionand environmental impact. For the recommended service intervals to apply, an approved engine oil must beused. Only use the prescribed oil grade totop off or change the oil. Otherwise, thereis a risk of the vehicle's service life, starta-bility, fuel consumption and environmentalimpact being affected. Failure to use engine oil of the prescribed grade and viscosity could cause damage toengine-related components. Volvo Car Cor-poration disclaims warranty liability forsuch type of 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.On engine variants with an oil pressure sensor,

MAINTENANCE AND SERVICE
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575
a warning symbol is displayed in the instru- ment panel when oil pressure is low
. On
engine variants with an oil level sensor, the
warning symbol in the instrument panel
and display messages are used to alert the driver. Some engine variants have both sys-tems. Contact a Volvo retailer for more infor-mation. Change the engine oil and oil filter according to the schedule specified in the Warranty andMaintenance Records Information booklet.Oils of a higher grade than that specified maybe used. If the vehicle is driven in adverse con-ditions, Volvo recommends using an oil with ahigher grade than that specified.
Related information
Checking and filling engine oil (p. 575)
Engine oil specifications (p. 631)
Checking and filling engine oil
The engine oil level is monitored by an elec- tronic oil level sensor.
Filler pipe 1314
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 instru-ment panel.
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 indicated 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 elec- tronic oil level gauge in the center display oncethe vehicle has been started. The oil levelshould be checked regularly.
13 Engines with an electronic oil level sensor do not have a dipstick.
14 The layout of the engine compartment may vary depending on model and engine variant.

MAINTENANCE AND SERVICE
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610
Cleaning floor mats and inlay mats (p. 607)
Cleaning leather upholstery
* (p. 608)
Cleaning the leather steering wheel(p. 609)
Cleaning the exterior
The vehicle should be washed as soon as it becomes dirty. This makes the vehicle easierto clean because dirt does not attach asstrongly. It also reduces the risk of scratchesand keeps the vehicle looking new. Wash thevehicle in a car wash or garage with an oilseparator and use car washing detergent.
Related information
Cleaning the exterior (p. 610)
Polishing and waxing (p. 610)
Hand washing (p. 611)
Automatic car washes (p. 613)
High-pressure washing (p. 614)
Cleaning the wiper blades (p. 614)
Cleaning exterior plastic, rubber and trim components (p. 615)
Cleaning rims (p. 616)
Corrosion protection (p. 616)
Polishing and waxing
Polish and wax the vehicle when the paint is matte or to provide extra protection. Thevehicle does not need to be polished until it isat least a year old. However, it can be waxedduring the first year. Do not polish or wax thevehicle in direct sunlight. The surface of thevehicle should not be warmer than 45 °C(113 °F).
Wash and dry the vehicle very carefully before polishing or waxing. Removeasphalt and tar stains with asphaltremover or paint thinner. More stubbornstains can be removed with a grindingpaste designed for vehicle paint.
Use polish first and then liquid or pastewax. Follow the instructions on the pack-age carefully. Many products contain bothpolish and wax.
A wide range of polymer-based waxes canbe purchased today. These waxes are easyto use and produce a long-lasting, high-gloss finish that protects the bodyworkagainst oxidation, road dirt and fading.

MAINTENANCE AND SERVICE
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Cleaning rims (p. 616)
Corrosion protection (p. 616)
Cleaning exterior plastic, rubber and trim components The vehicle should be washed as soon as it becomes dirty. The longer the dirt remains,the more difficult it will be to keep the vehicleclean. It could also lead to paint damage.Wash the vehicle in a car wash or garagewith an oil separator and use car washingdetergent.
A special cleaning agent available from Volvo retailers is recommended for the cleaning andcare of colored plastic parts, rubber and trimcomponents, e.g. glossy trim. Follow theusage instructions for the cleaning agent care-fully. Avoid using car washing detergents with a pH value lower than 3.5 or higher than 11.5. Doingso could result in the discoloring of anodized aluminum surfaces
* (as shown in the illustra-
tions below). Abrasive polishing agents are not recommended for these areas (as shown in the illustrations below).
Components that should be washed with a cleaning product with a pH value between 3.5 and 11.5.
CAUTION
Avoid waxing and polishing plastic and rubber. If using degreaser on plastic and rubber, only rub (if necessary) with slight pressure.Use a soft sponge. Polishing glossy trim moldings can wear away or damage the glossy surface layer. Polish containing abrasives must not be used.