VOLVO S90 2018 Owner´s Manual

MAINTENANCE AND SERVICE
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569
Related information
•Location of exterior lights (p. 565)
• Removing the plastic cover to replace bulbs (p. 564)
• Bulb specifications (p. 572)
Replacing the rear fog light bulb The rear fog light bulb is located behind a panel on the inside of the trunk lid on the driver's side.
NOTE
Replacement of the rear fog light bulb should only be performed by a workshop – anauthorized Volvo workshop is recommended.
To replace the rear fog light bulb:
Rubber cover the trunk lid lock.
1. Remove the rubber cover over the trunk lid
lock by moving it from side to side and pull- ing it straight off. It can be put back intoposition by pressing it into place.
Buttons in the trunk lid.
2. Remove the buttons in the trunk lid by insert-ing a flat object (e.g. a kitchen knife or screwdriver) behind the short sides of thebutton console and prying it out. The electri-cal connector for the buttons does not needto be disconnected.

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Trunk lid closing handle.
The closing handle on the inside of the trunk lid must be removed on the side of the vehi-cle in which the fog light is mounted.
3. Insert a flat object (kitchen knife, screwdriver, etc.) into the sides of the handle console torelease the two catches while prying out thehandle. To put the handle back into position,press hard until the catches click back intothe locked position.
CAUTION
Both lock lugs of the closing handle must be
pressed in at the same time before the han-
dle can be folded out and removed.
Attaching clips on the panel.
4. Remove the three outermost clips on the panel on the inside of the trunk lid on the side in which the fog light is mounted.
The rectangular section of the clip points toward the front and rear of the vehicle.
5. To remove a clip: Insert a flat object (e.g.kitchen knifes or screwdrivers) into both short sides of the clip to release
both
catches at the same time and then pry and
pull out the clip.
The hinge's plastic cover is held into place by a plastic clip and three latches.
6. To remove the hinge's plastic cover on the side in which the fog light is mounted: Press down the pin in the center of the plastic clipusing a screwdriver or similar. Pry/pull outthe plastic clip.
7. Release the plastic cover's three latches using e.g. a small screwdriver and remove theplastic cover.
8. Carefully pry and pull down the loosened section of panel to access the bulb.

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NOTE
To bear in mind when reinstalling the plastic rivet for the plastic guard of the hinge:
• Before the plastic rivet can be used forreinstallation, its center pin must first bepressed back far enough that it protrudesfrom the plastic rivet.
• Once the plastic guard of the hinge issecured in position, press the plastic rivetinto the hole of the plastic guard.
• Finally, the pin is pressed into the plasticrivet until its end surface is in line withthe surface of the plastic rivet.
Left-side rear fog light
Left-side bulb housing.
1. Remove the bulb holder by turning it a quar-
ter-turn counterclockwise and then pulling it out.
2. Remove the old bulb from the bulb holder by pressing it in and turning it counterclockwise.
3. Insert the new bulb by pressing it in and turning it clockwise.
4. Wipe any dirt, grease or moisture from the bulb's glass.
5. Insert the bulb into the bulb holder and turn it a quarter-turn clockwise.
6. Put the panel, plastic cover over the hinge and other parts back into place in the reverseorder.
Related information
• Location of exterior lights (p. 565)
• Bulb specifications (p. 572)

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Bulb specifications The following specifications apply to the bulbs in the halogen headlights and the rear fog light. If you are experiencing problems with any other lights, contact a workshop17
.
FunctionWAType
Low beams 55 H11
High beams 65 H9
Front turn signal 24 PY24WDaytime running light/ parking light, front 21/5 W21/5W
Rear fog light 21 H21W LL
A Watt
Related information
• Location of exterior lights (p. 565)
• Replacing bulbs (p. 563)
17
An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE
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573
Start battery
The vehicle has a single-pole electrical system that uses the chassis and engine mount as con-ductors. The start battery is used to start the electrical system and power the starter motor and otherelectrical equipment in the vehicle. The start battery should only be replaced by a workshop 18
.
The vehicle has a voltage-regulated alternating current generator. The starter battery is a 12 V battery, designed for the carbon dioxide reducing functions Start/Stopand regenerative charging, and to support thefunctionality of the car's different 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, which is 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 engine compartment to connect an external start batteryor battery charger. The battery terminals on the car's starter battery in the luggage/cargo area must
not be used.
If the start battery is being charged, the support battery will also be charged.
Positive connection point
Negative connection point
18 An authorized Volvo workshop is recommended.

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CAUTION
Only a modern battery charger with controlled charge voltage should be used to charge thestarter battery and support battery. The rapidcharging function should not be used as thiscould damage the battery.
CAUTION
Failure to observe the following could cause the 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 used
to connect an external starter battery orbattery charger – only the vehicle's neg-
ative charging point should be used as
a grounding point.
NOTE
If the starter battery becomes discharged too many 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 fully charged has the maximum service life.
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.
CAUTION
On certain models, the battery is secured with a tensioning strap. Make sure that the ten-sioning strap is always securely tightened.

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Specifications
BatteryH7 AGMH8 AGM
Voltage (V) 12 12
Cold start capacity A
- CCA B
(A) 800
850
Dimensions, L×W×H 315×175×190 mm (12.4×6.9×7.5 inches) 353×175×190 mm (13.9×6.9×7.5 inches)
Capacity (Ah) 80 95
A
According to EN standard.
B Cold Cranking Amperes.
Volvo recommends that batteries are replaced by an authorized Volvo workshop.
CAUTION
When replacing the starter battery or support battery, an AGM 19
battery must be installed.
CAUTION
If replacing the starter battery, make sure you replace it with a battery with the same coldstart capacity and type as the original battery(see the decal on the battery).
NOTE
The size of the starter battery should conform to the dimensions of the original battery.
Related information
• Battery symbols (p. 577)
• Support battery (p. 576)
• Jump starting using another battery (p. 433)
19
Absorbed Glass Mat.

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Support battery In addition to the start battery, vehicles equipped with the Start/Stop function also have a supportbattery.
Vehicles with the Start/Stop function are equip- ped with two 12-volt batteries ‒ a heavy-duty
start battery and a support battery that provides extra current during the Start/Stop function'sstart sequence.
The support battery is located in a box next to the spring strut in the engine compartment.
NOTE
• The higher the current consumption in the vehicle, the more the alternator has towork and the batteries have to becharged = increased fuel consumption.
• When the starter battery capacity hasdropped below the lowest permissiblelevel, the Start/Stop function is disen-gaged.
When the Start/Stop function is temporarily reduced due to high current consumption:
• The engine will auto-start, even if the driverdoes not lift their foot from the brake pedal.
The support battery does not normally requiremore service than the start battery. If you have any questions or concerns, consult a workshop ‒
an authorized Volvo workshop is recommended.
CAUTION
If the following is not observed, the Start/ Stop function may temporarily stop workingafter connection of an external starter batteryor battery charger: • The negative battery terminal of the vehi- cle's starter battery must
never be used
to connect an external starter battery orbattery charger – only the vehicle's neg-
ative charging point should be used as
a grounding point.

MAINTENANCE AND SERVICE
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577
NOTE
If the starter battery is discharged to the extent that the vehicle does not have normalelectrical functions and the engine must thenbe jump-started with an external battery or abattery charger, the Start/Stop function mayremain activated. If the Start/Stop functionshortly thereafter auto-stops the engine, thereis a huge risk that auto-start of the engine willfail due to insufficient battery capacity sincethe battery had not had time to recharge. If the vehicle has been jump-started or if there has not been enough time for the bat-tery to be charged with a battery charger, it isadvisable to temporarily deactivate theStart/Stop function until the battery has beenrecharged by the vehicle. At an ambient tem-perature of about +15°C (about 60°F), thebattery must be charged by the vehicle for atleast one hour. At lower ambient tempera-tures, the charging time can increase to3-4 hours. It is advisable to charge the batterywith an external battery charger.
Specifications
Voltage (V) 12 Cold start capacityA
-
CCA B
(A) 170
Dimensions, L×W×H150×90×130 mm
(5.9×3.5×5.1 inches)
Capacity (Ah) 10
A According to EN standard.
B Cold Cranking Amperes.
CAUTION
When replacing the starter battery or support battery, an AGM 20
battery must be installed.
Related information
• Start battery (p. 573)
• Start/Stop function (p. 418)
• Battery symbols (p. 577)
Battery symbols
There are warning symbols and information on the batteries.
Wear protective goggles.
See the Owner's Manual for additional information.
Keep batteries away from children.
Batteries contain corrosive acid.
20Absorbed Glass Mat.

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Avoid smoking, open
flames, and/or sparks.
Risk of explosion.
Recycle properly.
NOTE
A used start battery or backup battery con- tains lead and must be recycled in an environ-mentally responsible manner.
Related information
• Start battery (p. 573)
• Support battery (p. 576)
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 a higher amperage than that specified toreplace a fuse. This could cause significantdamage to the electrical system and possiblylead to a fire.
If any electrical component or function is not responding, 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.
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. 579)
• Fuses in the trunk (p. 586)
• Fuses in the engine compartment (p. 580)
• Fuses under the glove compartment (p. 583)