2019 VOLVO S90 TWIN ENGINE coolant

MAINTENANCE AND SERVICE
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599

NOTE
If the conditions for measuring oil level arenot properly fulfilled (time after engine shut-down, vehicle inclination, ambient tempera-ture, etc.) the message No value availablewill be shown in the center display. This doesnot mean that anything is wrong in the vehi-cle systems.

Related information
Engine oil (p. 597)
Engine oil specifications (p. 646)
Ignition modes (p. 429)
Vehicle status (p. 588)
Refilling coolant
Coolant helps keep the combustion engine atthe right operating temperature. The heat trans-ferred from the engine to the coolant can beused to warm the passenger compartment.
When refilling coolant, follow the instructions onthe package. Never fill the cooling system withonly water. The risk of freezing is increased withtoo low or too high amounts of coolant.
If there is coolant under the vehicle, smoke fromthe cooling system, or if more than 2 liters (about2 quarts) of coolant has been added to the sys-tem, there could be something wrong with thecooling system and starting the vehicle coulddamage the engine. Call a tow truck and do notattempt to start the engine.

WARNING
The coolant may be very hot. Never unscrewthe cap when the coolant is hot. If coolantmust be filled, unscrew the expansion tankcap slowly to relieve overpressure.
Coolant expansion tank, left-hand drive vehicle.

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MAINTENANCE AND SERVICE
* Option/accessory.600
Unscrew the cover in the plastic covering.
Unscrew the expansion tank cap and fillcoolant as needed. The level should notexceed the yellow MAX mark inside theexpansion tank.
Put the components back in place in the reverseorder.

CAUTION
Do not ingest the contents. May causedamage to organs (kidneys).
Use premixed coolant according to Vol-vo's recommendations. If concentratedcoolant is used, make sure that the cool-ant mixture is 50% coolant and 50%water of acceptable quality.
Do not mix different types of coolant.
To help ensure sufficient corrosion pro-tection in the system, only use new cool-ant when replacing larger components inthe cooling system.
Never run the engine unless the coolingsystem is properly filled. An improperlyfilled cooling system could lead to hightemperatures and cracks in the cylinderheads.
High levels of chlorine, chlorides andother salts may cause corrosion in thecooling system.
Related information
Engine compartment overview (p. 596)
Coolant specifications (p. 647)
Replacing bulbs
Halogen headlights are not available on all mod-els and markets. Contact a Volvo retailer formore information.
LED14 bulbs must be replaced by a workshop.An authorized Volvo workshop is recommended.

NOTE
For information on lights not mentioned inthis article, contact a Volvo dealer or a certi-fied Volvo service technician.

NOTE
Exterior lighting such as headlights and tail-lights may develop temporary condensationon the inside of the lens. This is normal. Allexterior lighting is designed to resist this.Condensation is normally vented out of thelamp housing once the light has been lit forsome period of time.

NOTE
Bulbs for active curve lighting* contain tracesof mercury and should therefore always besubmitted to a certified Volvo service techni-cian.

MAINTENANCE AND SERVICE
605
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)

MAINTENANCE AND SERVICE
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* Option/accessory.609
Fuse pliers are provided on the inside of the fusebox cover to assist in removing and insertingfuses.
There are also spaces for several extra fuses inthe fusebox.

Positions
There is a decal with a diagram of the locationsof the fuses on the inside of the cover.
Fuses 1–13, 18–30, 35–37 and 46–70 are"Micro" fuses.
Fuses 14–17, 31–34, 38–45 and 71–78 are"MCase" fuses and should only be replaced
by a workshop16.
FunctionAmpere
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Control module for actuatorfor engaging/changing gears,automatic transmission
5
High-voltage coolant heatercontrol module5
FunctionAmpere
Control module for A/C; heatexchanger cut-off valve; cut-off valve for coolant throughthe climate system
5
Hybrid battery control module;high-voltage converter forcombined high-voltage gener-ator/starter motor with 500V–12 V voltage converter
5
––
Converter for controlling feedto rear axle electric motor10
Hybrid battery control module;high-voltage converter forcombined high-voltage gener-ator/starter motor with 500V–12 V voltage converter
10
Charge module5
Cut-off valve for hybrid batterycoolant; coolant pump 1 forhybrid battery
10
Coolant pump for electric drivesystem10
FunctionAmpere
Hybrid component cooling fan 25
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Front USB port in tunnel con-sole, front*5
12 V outlet in tunnel console,front15
12 V outlet in tunnel console
between second-row seatsA
12 V outlet in tunnel console,
between rear seatsB; USBports in tunnel console
between rear seatsB
15
16An authorized Volvo workshop is recommended.

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MAINTENANCE AND SERVICE
* Option/accessory.614
FunctionAmpere
Door module in right-side reardoor
Power right rear seatA
20
Fuses in the trunk/cargo com-partment10
Control module for Internet-connected vehicle; Controlmodule for Volvo On Call
5
Door module in left-side reardoor
Power left rear seatB
20
Audio control module (ampli-fier) (certain models only)40
––
Multi-band antenna module 5
Front seat massage function*5
––
Rear door sun curtain modules 15
Fuel pump control module 15
FunctionAmpere
Relay windings for distributionbox in engine compartment;Relay windings for transmis-sion oil pump
5
––
Driver's seat heating15
Front passenger's seat heat-ing15
Coolant pump10
––
Power driver's seat*20
Active chassis control module*20
––
Sensus control module10
––
Climate system blower module(rear)10
Power front passenger seat*20
FunctionAmpere
Display for rear seat conven-
ience functionsA; On-boarddiagnostics (OBD II) in tunnel
console between rear seatsA;
Extra movement sensorA
5A
TV* (certain markets only)5
Primary fuse for fuses 9, 53and 5815
AExcellenceBExcellence

Related information
Fuses and fuseboxes (p. 606)
Replacing fuses (p. 607)

SPECIFICATIONS
645
Engine specifications
Engine specifications (output, etc.) for eachengine variant are shown in the table below. Thespecifications for Special Edition vehicles mayvary.
Twin Engine vehicles are powered by both agasoline engine and an electric motor (ERAD –Electric Rear Axle Drive).

NOTE
Not all engines are available on all markets.
EngineEngine codeAOutput
(kW/rps)
Output
(hp/rpm)
Torque
(Nm/rps)
Torque
(ft. lbs./rpm)
Number of cylinders
T8 Twin EngineB4204T28233/100 313/6000 400/37–90 295/2200–54004
AThe engine code, component and manufacturer serial numbers can be found on the engine.

Electric motor
Max. output: 65 kW (87 hp).
Torque: 240 Nm.

Related information
Type designations (p. 638)
Engine oil specifications (p. 646)
Coolant specifications (p. 647)

SPECIFICATIONS
647
Coolant specifications
Recommended grade: Volvo-approved pre-mixed coolant. If concentrated coolant is used,mix with 50% water. Consult a Volvo retailer ifyou have any questions.
To avoid deterioration of the cooling system,engine trouble, etc., only approved Volvo coolantshould be used.

WARNING
Do not ingest. May cause damage to organs(kidneys). The product contains ethylene gly-col, inhibitor, emetic, water, etc.

Related information
Refilling coolant (p. 599)
Transmission fluid specifications
Under normal driving conditions, the transmis-sion fluid will not need to be changed during itsservice life. However, it may need to be changedif the vehicle is driven frequently in adverse driv-ing conditions.
Automatic transmission
Prescribed transmission fluid:AW1

Related information
Type designations (p. 638)
Brake fluid specifications
The medium in the hydraulic brake system iscalled brake fluid and is used to transfer brakingforce from e.g. pressure on the brake pedal via amaster brake cylinder to one or more slave cylin-ders, which in turn act on a mechanical brake.
Recommended grade: Volvo Original or similarfluid that meets a combination of Dot 4, 5.1 andISO 4925 class 6.

NOTE
Changing or filling brake fluid should beentrusted to an authorized Volvo workshop.

Related information
Engine compartment overview (p. 596)

INDEX
653
Charging
hybrid battery 409
opening and closing the charging
door 414
start charging 415
Status 417, 419
stop charging 421
Charging cable 411
Charging current 411
Checking engine oil level 598
Child restraints 63, 65
booster cushions 71
convertible seats 69
infant seats 67
ISOFIX/LATCH anchors 74
lower attachment points 73
recalls and registration 65
top tether anchors 72
Child safety 63
Child safety locks 259
Circuit breaker 413
City Safety 333, 334, 336, 337, 343, 345
City Safety braking for oncoming vehicles 342
City Safety in crossing traffic 339, 340
City Safety when evasive maneuver preven-
ted341
Cleaning621, 623, 624
automatic car wash627
car wash624, 625, 627, 628, 629, 630
center display619
Seat belts621
textile upholstery619, 621, 622
upholstery 619, 621, 622, 623, 624
wheels630
Cleaning wheels630
Cleaning wiper blades628
Clean Zone199
Clean Zone Interior Package199
Climate196
auto-regulation214
blower control219, 220
parking224
perceived temperature197
Sensors196
temperature control221, 222
voice control197
zones196
Climate controls207
center display207
rear seat207
Climate system196, 207
Refrigerant648
repairs595
Clock, setting89
Collision42, 47, 52, 61
Collision warner
detection of pedestrians337
radar sensor324
Collision warning333, 346
Color code, paintwork632
Color codes632
Compass474
calibration475
Condensation in headlights625, 627,
628, 629
Connecting vehicle to Internet
No connection or poor connection 528
via a mobile device (WiFi)525
via cellular phone (Bluetooth) 525
via vehicle's modem526
Connect phone515
Contact information26
Convertible seats69
coolant647
Coolant, filling599
Cooling system
overheating465
Corner Traction Control271
Corrosion protection630
Crash, see Collision42