2017 VOLVO V90 check engine

MAINTENANCE AND SERVICE
515
Bonnet completely closed.
WARNING
Never drive with an open bonnet! If there are any signs that the bonnet is not properly closed whilst driving, stop immedi-ately and close it.
Related information
•Engine compartment overview (p. 515)
• Door and seatbelt reminder (p. 62)
Engine compartment overview
The overview shows some service-related com- ponents.
The appearance of the engine compartment may differ depending on model and engine variant.
Coolant expansion tank
Reservoir for brake and clutch fluid (located on the driver's side)
Washer fluid filler pipe 7
Central electrical unit
Air filter
Engine oil filler pipe
WARNING
Remember that the radiator fan (located at the front of the engine compartment, behindthe radiator) may start automatically someafter the engine has been switched off. Always have the engine cleaned by a work- shop - an authorised Volvo workshop is rec-ommended. There is a risk of fire if the engineis hot.
WARNING
The ignition system works at a very high and hazardous voltage. The car's electrical system must always be in ignition position
0 when
work is being performed in the engine com- partment. Do not touch the spark plugs or ignition coil when the car's electrical system is in ignition position II or when the engine is hot.
Related information
• Opening and closing the bonnet (p. 514)
• Filling washer fluid (p. 529)
• Topping up coolant (p. 518)
• Fuses in engine compartment (p. 537)
• Checking and filling with engine oil (p. 517)
• Ignition positions (p. 385)
7
Fill the washer fluid at regular intervals, e.g. when refuelling.

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
}}
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
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.

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)

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SPECIFICATIONS
568
Related information
•Type designations (p. 558)
• Adverse driving conditions for engine oil (p. 569)
• Checking and filling with engine oil (p. 517)
• Engine oil (p. 516)

SPECIFICATIONS
569
Adverse driving conditions for engine oil Adverse driving conditions can lead to abnor- mally high oil temperature or oil consumption.Below are some examples of adverse drivingconditions.
Check the oil level more frequently for long jour- neys:• towing a caravan or trailer
• in mountainous regions
• at high speeds
• in temperatures colder than -30 °C or hotterthan +40 °C.
The above also apply to shorter driving distancesat low temperatures. Choose a fully synthetic engine oil for adverse driving conditions. It provides extra protection forthe engine.
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.
Related information
• Engine oil — specifications (p. 567)
• Engine oil (p. 516)