engine VOLVO V90 2017 Owners Manual

MAINTENANCE AND SERVICE
516
Engine oil
An approved engine oil must be used in order that the recommended service intervals can beapplied.
Volvo recommends:
IMPORTANT
In order to fulfil the requirements for the engine's service intervals all engines are filledwith a specially adapted synthetic engine oilat the factory. The choice of oil has beenmade very carefully with regard to service life,starting characteristics, fuel consumption andenvironmental impact. An approved engine oil must be used in order that the recommended service intervals canbe applied. Only use a prescribed grade of oilfor both filling and oil change, otherwise thereis a risk of the service life, starting characte-ristics, fuel consumption and environmentalimpact of the car being affected. If engine oil of the prescribed grade and vis- cosity is not used, engine related componentsmay become damaged. Volvo Car Corporationdisclaims any liability for any such damage. Volvo recommends that oil changes are car- ried out at an authorised Volvo workshop.
Volvo uses different systems for warning of low/ high oil level or low oil pressure. Certain enginevariants have an oil pressure sensor, and then thedriver display's warning symbol for low oil pres- sure
is used. Other variants have an oil
level sensor, when the driver is informed via the driver display's warning symbol
and display texts. Certain variants have both systems. Contact a Volvo dealer for more information. Change the engine oil and oil filter in accordance with the intervals specified in the Service andWarranty Booklet. Using oil of a higher than specified grade is per- mitted. If the car is driven in adverse conditions,Volvo recommends using an oil of a higher gradethan the one specified.
Related information
•
Checking and filling with engine oil(p. 517)
• Adverse driving conditions for engine oil(p. 569)
• Engine oil — specifications (p. 567)

MAINTENANCE AND SERVICE
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517
Checking and filling with engine oil The oil level is detected with the electronic oil level sensor.
Filler pipe8
.
In some cases, oil may need to be topped up between service intervals. Action with regard to engine oil level does not need to be taken until a message is shown in thedriver display.
WARNING
If this symbol is shown together with the message Engine oil level
Service required, visit a workshop
- an authorised Volvo workshop is
recommended. The oil level may be too high.
IMPORTANT
If this symbol is shown together with a message about low oil level, such as
Engine oil level low
Refill 1 litre for example, then only
fill the volume specified, e.g. 1 litre.
WARNING
Do not spill oil onto the hot exhaust manifold due to the risk of fire.
Check the oil level
1. Open the Car status app from the app view
in the centre display.
2. Press the
Status button to show the oil
level.
Graphics for oil level in the centre display.
The oil level is checked using the electronic oil level gauge in the centre display when the engineis switched off.
NOTE
The system cannot directly detect changes when the oil is filled or drained. The car musthave been driven approx. 30 km and havebeen stationary for 5 minutes with the engineswitched off and on level ground before theoil level indication is correct.
8 Engines with electronic oil level sensor do not have a dipstick.

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MAINTENANCE AND SERVICE
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NOTE
If the right conditions for measuring the oil level (time after engine shutdown, the car'sinclination, outside temperature, etc.) are not met, then the message
No value availablewill be shown in the centre display. This does not mean that there is something wrong in
the car's systems.
Related information
• Engine oil (p. 516)
• Engine oil — specifications (p. 567)
• Adverse driving conditions for engine oil (p. 569)
• Ignition positions (p. 385)
• Car status (p. 506)
Topping up coolant
The coolant cools the internal combustion engine to the correct operating temperature. Theheat that is transferred from the engine to thecoolant can be used to heat the passenger com-partment.
When topping up the coolant, follow the instruc- tions on the packaging. Never top up with wateronly. The risk of freezing increases with both toolittle and too much coolant concentrate.
WARNING
Coolant can be very hot. If the coolant requires topping up when the engine is atoperating temperature, unscrew the expan-sion tank cap slowly to gently release theoverpressure.
Coolant expansion tank, left-hand drive car.
Screw off the cap in the plastic cover.
Screw off the cap on the expansion tank and top up with coolant. The coolant level must not exceed the yellow MAX mark inside the
expansion tank.
Reinstall the parts in reverse order.

MAINTENANCE AND SERVICE
519
Coolant expansion tank, right-hand drive car.
Grip the hatch's handle and lift/jiggle the hatch from the plastic cover.
Screw off the cap on the expansion tank and top up with coolant. The coolant level must not exceed the yellow MAX mark inside the
expansion tank.
Reinstall the parts in reverse order. If there is coolant under the car, if there is cool- ant smoke, or if more than 2 litres have beenfilled, always call for recovery to avoid the risk ofengine damage due to a defective cooling sys-tem when attempting to start the car.
IMPORTANT
• A high content of chlorine, chlorides and other salts may cause corrosion in thecooling system.
• Always use coolant with anti-corrosionagent as recommended by Volvo.
• Ensure that the coolant mixture is 50%water and 50% coolant.
• Mix the coolant with approved quality tapwater. In the event of any doubt aboutwater quality, used ready-mixed coolant inaccordance with Volvo recommendations.
• When changing coolant/replacing cool-ing system components, flush the coolingsystem clean with approved quality tapwater or flush with ready-mixed coolant.
• The engine must only be run with a well-filled cooling system. Otherwise, tempera-tures that are too high may occur result-ing in the risk of damage (cracks) in thecylinder head.
Related information
•
Coolant — specifications (p. 570)

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MAINTENANCE AND SERVICE
530
IMPORTANT
Use Volvo genuine washer fluid or equivalent with a recommended pH of between 6 and 8,in working dilution (e.g. 1:1 with neutralwater).
IMPORTANT
Use washer fluid with antifreeze when the temperature is below freezing to avoid freez-ing in the pump, reservoir and hoses.
Volume:• Cars
with headlamp washing: 5.5 litres.
• Cars
without headlamp washing: 3.5 litres.
Related information
•Windscreen and headlamp washers (p. 150)
• Opening and closing the bonnet (p. 514)
Starter battery
The electrical system is single-pole and uses the chassis and engine casing as a conductor. The starter battery is used to start up the electri- cal system and drive the starter motor as well asother electrical equipment in the car. The starter battery should be replaced by a workshop 13
.
The car has a voltage-regulated AC alternator. The starter battery is a 12 V AGM battery, designed for the carbon dioxide reducing func-tions, Start/Stop and regenerative charging, andto support the functionality of the car's differentsystems. The service life and function of the starter battery is influenced by factors such as the number ofstarts, discharging, driving style, driving condi-tions, climatic conditions etc. • Never disconnect the starter battery when the engine is running.
• Check that the cables to the starter batteryare correctly connected and properly tight-ened.
WARNING
•
The battery can generate oxyhydrogen gas, which is highly explosive. A spark canbe formed if a jump lead is connectedincorrectly, and this can be enough forthe battery to explode.
• The battery contains sulphuric acid, whichcan cause serious burns.
• If sulphuric acid comes into contact witheyes, skin or clothing, flush with largequantities of water. If acid splashes intothe eyes - seek medical attention imme-diately.
When connecting an external starter battery orbattery charger, use the car's charging points inthe engine compartment. The battery terminalson the car's starter battery in the cargo area must not be used.
During charging, both the starter battery and the support battery are charged.
13 An authorised Volvo workshop is recommended.

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MAINTENANCE AND SERVICE
534
Size , L×W×H (mm) 150×90×130
Capacity (Ah) 10
AAccording to EN standard.
B Cold Cranking Amperes.
IMPORTANT
When replacing the starter battery or support battery, a battery of AGM 15
type must be fit-
ted.
NOTE
• The higher the current take-off in the car, the more the alternator must be workingand the batteries charging = Increasedfuel consumption.
• When the capacity of the starter batteryhas fallen below the lowest permissiblelevel then the Start/Stop function is dis-engaged.
Temporarily reduced Start/Stop function due to high current take-off means: •
The engine starts automatically 16
without the
driver depressing the clutch pedal (manualgearbox).
• The engine starts automatically without thedriver lifting his/her foot off the foot brakepedal (automatic gearbox).
The support battery normally requires no moreservice than the normal starter battery. A work-shop should be contacted in the event of ques-tions or problems - an authorised Volvo workshopis recommended.
IMPORTANT
If the following instruction is not observed then the Start/Stop function may temporarilycease to work after the connection of anexternal starter battery or battery charger:
• The negative battery terminal on the car's starter battery must
never be used for
connecting an external starter battery orbattery charger - only the car's negative
charging point may be used as the
grounding point.
NOTE
If the starter battery has been discharged so much that the car has no normal electricalfunctions and the engine is then jump-startedwith an external battery or a battery charger,the Start/Stop function will continue to beactivated. If the Start/Stop function thenauto-stops the engine shortly after, there is agreat risk that engine auto-start will fail dueto insufficient battery capacity, because thebattery has not had the opportunity torecharge. If the car has been jump-started, or if there is insufficient time to charge the battery with abattery charger, the recommendation is totemporarily deactivate the Start/Stop functionuntil the battery has been recharged by thecar. In an outside temperature of +15 °C, thebattery needs to be charged for at least1 hour by the car. In a lower outside tempera-ture, the charging time may increase to3-4 hours. The recommendation is to chargethe battery using an external battery charger.
Related information
• Starter battery (p. 530)
• Start/Stop (p. 396)
15
Absorbed Glass Mat.
16 Automatic starting can only take place if the gear lever is in neutral position.

MAINTENANCE AND SERVICE
535
•
Using jump starting with another battery (p. 388)
• Symbols on the batteries (p. 533)
Fuses All electrical functions and components are pro- tected by a number of fuses in order to protectthe car's electrical system from damage by shortcircuiting or overloading.
If an electrical component or function does not work, it may be because the component's fusewas temporarily overloaded and failed. If thesame fuse fails repeatedly then there is a fault inthe circuit. Volvo recommends contacting anauthorised Volvo workshop for checking.
Location of central electrical units
Central electrical unit locations in a left-hand drive car. In a right-hand drive car the centralelectrical units under the glovebox change sides.
Engine compartment
Under the glovebox
Cargo area
Related information
•Replacing a fuse (p. 536)

MAINTENANCE AND SERVICE
536
Replacing a fuse All electrical functions and components are pro- tected by a number of fuses in order to protectthe car's electrical system from damage by shortcircuiting or overloading.
Changing1. Look in the fuse diagram to locate the fuse.
2. Pull out the fuse and check from the side tosee whether the curved wire has blown.
3. If this is the case, replace it with a new fuse of the same colour and amperage.
WARNING
Never use a foreign object or a fuse with an amperage higher than that specified whenreplacing a fuse. This could cause significantdamage to the electrical system and possiblylead to fire.
Related information
• Fuses (p. 535)
• Fuses in engine compartment (p. 537)
• Fuses under glovebox (p. 542)
• Fuses in cargo area (p. 546)

MAINTENANCE AND SERVICE
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537
Fuses in engine compartment
Fuses in the engine compartment protect engine and brake functions, amongst other things.

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MAINTENANCE AND SERVICE
* Option/accessory.
540
Function
AA
Heated windscreen
* right-hand
side 40
Parking heater
* 20
Control unit for brake system (ABS pump) 40
- -
Heated windscreen
* right-hand
side Shunt
Supplied when the ignition is switched on: Engine controlmodule; Transmission compo-nents; Electric steering servo;Central electronic module; Con-trol module for brake system 5
- -
Right-hand headlamp 7.5 Right-hand headlamp, certain variants of LED
C 15
- -
- -
Module for controlling battery engagement 5
Function
AA
Airbags 5
Left-hand headlamp 7.5 Left-hand headlamp, certain variants of LED C 15
Accelerator pedal sensor 5
Transmission control module 15
Engine Control Module (ECM) 5
- -
- -
- -
- -
Engine control module; Actuator; Throttle unit; EGR valve (diesel);Position sensor for turbo (die-sel); Valve for turbocharger (pet-rol) 20
Solenoids (petrol); Valve; Ther- mostat for engine cooling sys-tem (petrol); EGR cooling pump(diesel); Glow control module(diesel)10
Function
AA
Vacuum regulators; Valve; Valve for output pulse (diesel) 7.5
Control module for spoiler roller cover; Control module for radia-tor roller cover; Relay coils foroutput pulse (diesel) 5
- -
Lambda-sond, front; Lambda- sond, rear (petrol)
15
Solenoid for engine oil pump; Solenoid clutch A/C; Lambdasond, centre (petrol); Lambdasond, rear (diesel)15
- -
Engine Control Module (ECM) 20
Ignition coils (petrol); Spark plugs (petrol)
15
Control module for vehicle gas
*B
15*B
Fuel filter heater (diesel) 30
- -
- -
- -