2019 VOLVO S90 TWIN ENGINE maintenance

MAINTENANCE AND SERVICE
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Start battery
The vehicle has a single-pole electrical systemthat uses the chassis and engine mount as con-ductors.
The start battery is used to start the electricalsystem and power electrical equipment in thevehicle. The hybrid battery is used to start thecombustion engine.
The start battery should only be replaced by a
workshop15.
The start battery is a 12 V AGM (Absorbed GlassMat) battery, dimensioned for regenerative charg-ing and to support the function of the vehicle'svarious systems.
The service life and performance of the start bat-tery are affected by factors such as driving style,driving conditions, climate, battery discharges,number of starts, etc.
Never disconnect the start battery while theengine is running.
Make sure the cables to the start battery arecorrectly connected and the clamps aresecurely tightened.

WARNING
Batteries generate hydrogen gas, whichis flammable and explosive.
Do not connect the jumper cable to anypart of the fuel system or to any movingparts. Avoid touching hot manifolds.
Battery fluid contains sulfuric acid. Do notallow battery fluid to contact eyes, skin,fabrics or painted surfaces.
If contact occurs, flush the affected areaimmediately with water. Obtain medicalhelp immediately if eyes are affected.
Never expose the battery to open flameor electric spark. Do not smoke near thebattery. Failure to follow the instructionsfor jump starting can lead to injury.

Connection points
WARNING
PROPOSITION 65 WARNING
Battery posts, terminals, and related accesso-ries contain lead and lead compounds, chemi-cals known to the state of California to causecancer and reproductive harm. Wash handsafter handling.
Use the vehicle's connection points in the enginecompartment to connect an external start batteryor battery charger.
The battery terminals on the car's start battery inthe luggage/cargo area must not be used.
Positive connection point
Negative connection point
14LED (Light Emitting Diode)15An authorized Volvo workshop is recommended.

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CAUTION
It is not possible to charge another vehicle'sbattery by means of current through thecharging points. Using the charging points tocharge another vehicle's battery could causea fuse to blow, which would cause the charg-ing points to stop working.

CAUTION
Only a modern battery charger with controlledcharge voltage should be used to charge thestarter battery. The rapid charging functionshould not be used as this could damage thebattery.

NOTE
If both the starter battery and the hybrid bat-tery are discharged, both batteries must becharged. In such cases, it is not possible tocharge only the hybrid battery first.
The starter battery must have a certain levelof charge for it to be possible to charge thehybrid battery.
CAUTION
Failure to observe the following could causethe infotainment energy save mode to tempo-rarily stop working and/or a message in thedriver's display regarding the state of chargeof the starter battery may be temporarilyincorrect after an external starter battery orbattery charger has been connected:
The negative battery terminal of the vehi-cle's starter battery must never be usedto connect an external starter battery orbattery charger – only the vehicle's neg-ative charging point should be used asa grounding point.
NOTE
If the starter battery becomes discharged toomany times, it will shorten its service life.
The service life of the starter battery is affec-ted by several factors, such as driving condi-tions and climate. The starting capacity of thebattery reduces gradually over time. The bat-tery must therefore be recharged if the vehi-cle is not used or a long period of time or if itis only driven short distances. Severe cold fur-ther limits the starting capacity.
To keep the starter battery in a good condi-tion, the vehicle should be driven at least15 minutes per week or the battery should beconnected to a battery charger with automatictrickle charging.
A starter battery that is always kept fullycharged has the maximum service life.

MAINTENANCE AND SERVICE
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Location
The start battery is located in the trunk.

WARNING
If the starter battery is disconnected, the func-tion for automatic opening and closing mustbe reset to function correctly. A reset isrequired in order for the pinch protection towork.

Specifications for start battery
Battery typeH8 AGM
Voltage (V)12
Cold start capacityA - CCAB (A)850
Dimensions, L×W×H353×175×190 mm (13.9×6.9×7.5 inches)
Capacity (Ah)95
AAccording to EN standard.BCold Cranking Amperes.
Volvo recommends that batteries are replaced byan authorized Volvo workshop.

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CAUTION
If replacing the battery, make sure youreplace it with a battery of the same size, coldstart capacity and type as the original battery(see the decal on the battery).

Related information
Battery symbols (p. 606)
Hybrid battery (p. 605)
Jump starting using another battery (p. 466)

MAINTENANCE AND SERVICE
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Hybrid battery
The vehicle's electric motor is powered by arechargeable, maintenance-free, lithium-ionhybrid battery.

NOTE
The vehicle cannot be started if the hybridbattery is discharged.

NOTE
If both the starter battery and the hybrid bat-tery are discharged, both batteries must becharged. In such cases, it is not possible tocharge only the hybrid battery first.
The starter battery must have a certain levelof charge for it to be possible to charge thehybrid battery.

WARNING
Hybrid battery replacement may only be per-formed by a workshop – an authorized Volvoworkshop is recommended.

Coolant
The hybrid battery's cooling system has its ownexpansion tank.
CAUTION
Filling the hybrid battery coolant should onlybe performed by a workshop – an authorizedVolvo workshop is recommended.

Specifications for hybrid battery
Type: Lithium-ion
Power reserve: 10.4 kWh.

NOTE
The capacity of the hybrid battery decreaseswith age and use, which could result inincreased use of the combustion engine,leading to higher fuel consumption andreduced electric motor range.
Related information
Battery symbols (p. 606)
Start battery (p. 601)
Charging the hybrid battery (p. 409)

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Battery symbols
There are warning symbols and information onthe batteries.
Wear protective goggles.
See the Owner's Manual foradditional information.
Keep batteries away fromchildren.
Batteries contain corrosiveacid.
Avoid smoking, openflames, and/or sparks.
Risk of explosion.
Recycle properly.

NOTE
A used start battery contains lead and mustbe recycled in an environmentally responsiblemanner.

Related information
Start battery (p. 601)
Hybrid battery (p. 605)
Fuses and fuseboxes
All electrical functions and components are pro-tected by a number of fuses in order to protectthe vehicle's electrical system from damage byshort circuiting or overloading.
WARNING
Never use a foreign object or a fuse with ahigher amperage than that specified toreplace a fuse. This could cause significantdamage to the electrical system and possiblylead to a fire.

WARNING
Orange wiring may only be handled by quali-fied personnel.

WARNING
Several components in the vehicle work withhigh voltage that can be hazardous in case ofan incorrect procedure.
Do not touch anything that is not clearlydescribed in this Owner's Manual.
If any electrical component or function is notresponding, the component may have blown afuse due to temporary overload. If the same fuseblows repeatedly, there may be a problem withthe component. Volvo recommends contacting anauthorized Volvo workshop to have the compo-nent checked.

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Location of fuseboxes
The illustration is generic - appearance may vary accord-ing to vehicle model.
Engine compartment
Under the glove compartment
Trunk/cargo compartment

Related information
Replacing fuses (p. 607)
Fuses in the trunk (p. 615)
Fuses in the engine compartment (p. 608)
Fuses under the glove compartment(p. 612)
Replacing fuses
All electrical functions and components are pro-tected by a number of fuses in order to protectthe vehicle's electrical system from damage byshort circuiting or overloading.
1. Refer to the fuse diagram to locate the fuse.
2. Pull out the fuse and examine it from theside to determine if the curved metal wire inthe fuse is intact.
3.If the wire is broken, replace the fuse with anew fuse of the same color and amperage.
WARNING
Never use a foreign object or a fuse with ahigher amperage than that specified toreplace a fuse. This could cause significantdamage to the electrical system and possiblylead to a fire.

WARNING
Contact an authorized Volvo workshop forassistance replacing fuses not listed in theOwner's Manual. If performed incorrectly, sig-nificant damage can be caused to the electri-cal system.

Related information
Fuses and fuseboxes (p. 606)
Fuses in the trunk (p. 615)
Fuses in the engine compartment (p. 608)
Fuses under the glove compartment(p. 612)

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Fuses in the engine compartment
The fuses in the engine compartment help pro-tect electrical components such as engine andbrake functions.