fuel VOLVO V90 2017 Service Manual

WHEELS AND TYRES
482
TyresAmongst other things, the function of the tyres is to carry load, provide grip on the road surface,dampen vibration and protect the wheel fromwear.
The tyres greatly affect the car's driving characte- ristics. The type of tyre, dimensions, tyre pressureand speed rating are important for how the carperforms.
Recommended tyresOn delivery, the car is equipped with Volvo origi- nal tyres that have the VOL 1
marking on the side
of the tyres. These tyres are carefully adapted to the car. In the event of changing tyres, it is there-fore important that the new tyres also have thismarking in order for the car's driving characteris-tics, comfort and fuel consumption to be main-tained.
New tyres
Tyres are perishable. After a few years they begin to harden at the same time as the frictioncapacity/characteristics gradually deteriorate. Forthis reason, aim to get as fresh tyres as possiblewhen you replace them. This is especially impor-tant with regard to winter tyres. The last four dig-its in the sequence mean the week and year ofmanufacture. This is the tyre's DOT marking(Department of Transportation), and this is statedwith four digits, for example 0715. The tyre in thefigure was manufactured in week 07 of 2015.
Tyre ageAll tyres older than 6 years old should bechecked by an expert even if they seem undam-aged. Tyres age and decompose, even if they arehardly ever or never used. The function cantherefore be affected. This applies to all tyres that are stored for future use. Examples of externalsigns which indicate that the tyre is unsuitable foruse are cracks or discoloration.
Wear and maintenanceCorrect tyre pressure results in more even wear.Driving style, tyre pressure, climate and road con-dition affect how quickly the tyres age and wear. To avoid differences in tread depth and to pre- vent wear patterns forming on the tyres, the frontand rear wheels can be switched with each other.A suitable distance for the first change is approx.5000 km and then at 10000 km intervals. Volvo recommends the an authorised Volvo work- shop is contacted for checking if you are uncer-tain about tread depth. If significant differences inwear (> 1 mm difference in tread depth) betweentyres have already occurred, then the least worntyres must always be fitted on the rear. Under-steer is normally easier to correct than oversteer,and leads to the car continuing forwards in astraight line rather than having the rear end skid-ding to one side, resulting in possible completeloss of control over the car. This is why it isimportant for the rear wheels never to lose gripbefore the front wheels.
WARNING
A damaged tyre may lead to loss of control over the car.
1
There may be deviations for certain tyre dimensions.

WHEELS AND TYRES
484
Tread wear indicators on the tyres Tread wear indicators show the status of the tyre's tread depth.
A tread wear indicator is a narrow elevation across the longitudinal grooves of the tyre's treadpattern. On the side of the tyre are the lettersTWI (Tread Wear Indicator). When the tyre's treaddepth is down to 1.6 mm, the tread will be level inheight with the tread wear indicators. Change tonew tyres as soon as possible. Remember thattyres with little tread depth provide very poor gripin rain and snow.
Related information
•Tyres (p. 482)
Checking the tyre pressures Tyres with the correct air pressure increase driv- ing safety, save fuel and extend the service life ofthe tyres.
Tyre pressure decreases over time, this is a natu- ral phenomenon. Tyre pressure also variesdepending on ambient temperature. Inadequatetyre pressure increases fuel consumption, short-ens tyre lifespan and impairs the car's drivingcharacteristics. Driving on tyres with tyre pressurethat is too low could result in the tyres overheat-ing and being damaged. Tyre pressure affectstravelling comfort, road noise and driving charac-teristics.
Recommended tyre pressure
The tyre pressure label on the driver's side door pillar (between frame and rear door) shows which pressures the tyres should have at different loadsand speed conditions.
Improved fuel economy with ECO pressure
For a light load (max. 3 people) and a speed of up to 160 km/h (100 mph), the ECO pressurescan be chosen for optimum fuel economy. How-ever, the lower comfort pressures are recom-mended instead if optimum noise and travellingcomfort are desired.
Checking the air pressure1. Check the tyre pressures monthly. Carry out
the check on cold tyres, which means thatthe tyres should have the same temperatureas the outside temperature. After several fewkilometres of driving, the tyres warm up andthe pressure increases.
2. If necessary, inflate so that the air pressure corresponds with the approved tyre pressurein accordance with the tyre pressure label.
NOTE
• After a tyre has been inflated, always refit the dust cap in order to avoid damage tothe valve from gravel, dirt, etc.
• Only use plastic dust caps. Metal dustcaps can rust and become difficult tounscrew.

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WHEELS AND TYRES
* Option/accessory.
486
General information on the tyre monitoring system
In the information below, the tyre monitoring sys- tem is referred to generically as TPMS. Each tyre, including the spare tyre *, should be
checked once a month. When checking, the tyre should be cold and have the air pressure recom-mended by the car manufacturer specified on thetyre pressure label or in the tyre pressure table. Ifthe car has tyres of a different size than that rec-ommended by the manufacturer, find out whatthe correct air pressure level is for these. As an extra safety feature, the car is equipped with a tyre pressure monitoring system (TPMS),which shows when the air pressure in one ormore tyres is too low. When the indicator symbolfor low air pressure is lit, stop and check the tyresas soon as possible and inflate to the correct airpressure. Driving with tyres that have tyre pressure that is too low may cause the tyre to overheat, whichcan cause a puncture. Low tyre pressure alsoreduces fuel efficiency as well as tyre service life,and can affect car handling and stopping ability.Note that TPMS does not replace regular tyremaintenance. It is the driver's responsibility tomaintain correct tyre pressure, even if the limit forlow tyre pressure has not been reached so thatthe indicator symbol illuminates. The car is also equipped with a TPMS system fault indicator, which indicates when the system is not functioning correctly. The TPMS systemfault indicator is combined with the indicator sym-bol for low tyre pressure. When the systemdetects a fault, the symbol in the driver displaywill flash for about one minute and then remainilluminated. This procedure will be repeated whenthe car is started until the fault has been rectified.When the symbol is illuminated, the system's abil-ity to detect or warn of low tyre pressure may beaffected. A TPMS system fault can occur for several rea- sons, such as after changing to a spare tyre, orchanging tyres or wheels that prevent TPMS fromfunctioning correctly. Always check the indicator symbol for TPMS after changing one or more tyres in order toensure the new tyre or wheel is working correctlywith TPMS.
Messages in the driver displayThe following messages may be shown when theindicator symbol is illuminated:
•
Tyre pressure low Check tyres, calibrate
after fill
•Tyre pressure system Temporarily
unavailable
•Tyre pressure system Service required.
If the system cannot determine which tyre has low pressure, all four tyres will be indicated in thecentre display.
To bear in mind
• Always calibrate the system after a wheelchange or tyre pressure adjustment. See thetyre pressure label on the driver's side doorpillar for Volvo's recommended tyre pres-sures.
• The system does not replace normal tyremaintenance.
• There is no option to deactivate ITPMS.
Related information
•Tyres (p. 482)
• Checking tyre pressure with the tyre monitor- ing system
* (p. 487)
• Calibrating tyre monitoring
* (p. 489)
• Rectifying low tyre pressure with tyre moni-toring
* (p. 488)

MAINTENANCE AND SERVICE
* Option/accessory.509
Related information
•Volvo ID (p. 23)
• Online car
* (p. 463)
• Car status (p. 506)
Inspection and service of the system for vehicle gas
*5
The system for vehicle gas must be inspected regularly by an authorised workshop - an author-ised Volvo workshop is recommended.
WARNING
The gas is compressed to high pressure. This system must only be serviced and repaired byan authorised workshop. Never attempt to disassemble or adjust the gas system or its component parts yourself-risk of serious personal injury.
Remote updates Several of the car's systems can be updated from the centre display with an online car.
The Download Centre app is
started from app view in the centre display and enables:
• searching for and updating system software
• updating map data for Sensus Navigation
*
• downloading, updating and uninstalling apps.
Related information
•
System updates (p. 510)
• Downloading, updating and uninstalling apps (p. 468)
5
Applies to the Bi-Fuel model variant.

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)

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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.

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MAINTENANCE AND SERVICE
* Option/accessory.
538
Applies to the Bi-Fuel model variant *B
On the inside of the cover there are tweezers that facilitate the procedure for the removal and fittingof fuses. The fuse box also provides space for severalspare fuses.PositionsOn the inside of the cover is a label that showsthe location of the fuses.

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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
- -
- -
- -

MAINTENANCE AND SERVICE
541
FunctionAA
- -
- -
Starter motor Shunt
Starter motor 40
A
Ampere
B Applies to the Bi-Fuel model variant.
C LED (Light Emitting Diode)
Related information
• Replacing a fuse (p. 536)
• Fuses under glovebox (p. 542)
• Fuses in cargo area (p. 546)