2020 VOLVO S90 TWIN ENGINE oil pressure

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.

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MAINTENANCE AND SERVICE
592
FunctionAmpere Type
Solenoids; Valve; Overpressure coupling 10 Micro
Vacuum regulator; Electric bypass valve: Ventilation valve7.5 Micro
Spoiler damper control module; Cooler damper control module 5 Micro
–– Micro
Heated oxygen sensor front and rear15 Micro
Oil pump solenoid; A/C magnetic coupling; Heated oxygen sensor front, center and rear15 Micro
– – Micro
Engine control module20 Micro
Ignition coils; spark plugs 15 Micro
– – MCase
–– MCase
Transmission oil pump control module30 MCase
– – MCase
Transmission actuator25 MCase
– – MCase

MAINTENANCE AND SERVICE
* Option/accessory.
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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611
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.
CAUTION
Only use paintwork treatments recom- mended by Volvo. Other treatments, suchas preservation, sealing, protection, lustersealing or similar, could damage the paint-work. Paintwork damage caused by suchtreatments are not covered by Volvo's war-ranty.
Related information
Cleaning the exterior (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)
Hand washing
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.
Important to keep in mind when handwashing your vehicle
Avoid washing the vehicle in direct sun- light. This could cause the detergent orwax to dry out and become abrasive.
Remove bird droppings from paintwork assoon as possible. It contains chemicalsthat affect and discolor paintwork veryquickly. Use e.g. soft paper or a spongesoaked in lots of water. Consult an author-ized Volvo workshop for assistanceremoving discoloration.
Hose down the underbody, including thewheel housings and bumper.
Hose down the entire vehicle and removeany loose dirt, droppings etc. to reducethe risk of scratches from washing. Do notspray directly onto locks.
If necessary, use cold degreaser on heavilysoiled surfaces. Note that in such casesthe surfaces must not be hot from the sun.

MAINTENANCE AND SERVICE
* Option/accessory.
614
Settings for automatically activating the parking brake (p. 408)
Keyless and touch-sensitive surfaces
*
(p. 250)
High-pressure washing 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. Use a car washingdetergent.
If washing the vehicle with a high-pressure wash, use sweeping movements and keep thenozzle at least 30 cm (13 in.) from the vehicle.Do not spray directly onto locks.
Related information
Cleaning the exterior (p. 610)
Polishing and waxing (p. 610)
Hand washing (p. 611)
Automatic car washes (p. 613)
Cleaning the wiper blades (p. 614)
Cleaning exterior plastic, rubber and trimcomponents (p. 615)
Cleaning rims (p. 616)
Corrosion protection (p. 616)
Cleaning the wiper blades 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. Use a car washingdetergent.
Asphalt, dust and salt residue on wiper blades, as well as insects, ice etc. on the windshield,shorten the service life of wiper blades. When cleaning, put the wiper blades in the service position.
NOTE
Wash the wiper blades and windshield regularly with a lukewarm soap solution orvehicle shampoo. Do not use strong sol-vents.
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 exterior plastic, rubber and trim components (p. 615)

MAINTENANCE AND SERVICE
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* Option/accessory.615

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.

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MAINTENANCE AND SERVICE
616
CAUTION
Avoid washing the vehicle with cleaner with a pH value below 3.5 or above 11.5.This could cause discoloration of anodizedaluminum components like the roof rail andaround the side windows. Never use metal polishing agent on ano- dized aluminum components. This couldcause discoloration and destroy the sur-face treatment.
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 rims (p. 616)
Corrosion protection (p. 616)
Cleaning rims
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.
Only use rim cleaning products recommended by Volvo. Strong rim cleaning agents could damage the surface and stain the chromed aluminum rims.
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 exterior plastic, rubber and trimcomponents (p. 615)
Cleaning rims (p. 616)
Corrosion protection (p. 616)
Corrosion protection Your vehicle is constructed with protection against corrosion.
Corrosion protection for the body consists of modern metallic protective coatings on thesheet metal, a high-quality painting process,corrosion-protected and minimized metaloverlap, and shielding plastic components,abrasion protection and supplemental rustinhibitor in exposed areas. In the chassis,exposed components of the wheel suspensionare made of corrosion-resistant cast alumi-num.
Inspection and maintenanceThe corrosion protection does not normallyrequire maintenance, but keeping the vehicleclean helps reduce the risk of corrosion. Theuse of strong alkaline or acidic cleaning fluidsshould be avoided on shiny body components.Any stone chips in the paint should betouched up as soon as they are discovered.
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)