2019 VOLVO S60 TWIN ENGINE coolant temperature

STARTING AND DRIVING
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or location or removing components, and/orrepeated use of leaded fuel.

NOTE
Unleaded fuel is required for vehicles withthree-way catalytic converters.

Heated oxygen sensors
The heated oxygen sensors monitor the oxygencontent of the exhaust gases. Readings are fedinto a control module that continuously monitorsengine functions and controls fuel injection. Theratio of fuel to air into the engine is continuouslyadjusted for efficient combustion to help reduceharmful emissions.

Related information
Octane rating (p. 429)
Fuel (p. 428)
Overheating of engine andtransmission
In certain driving conditions, such as driving inmountainous areas or hot weather, there is a riskof the engine or transmission overheating, espe-cially when carrying heavy loads.
Engine power may be temporarily limited.
Remove any auxiliary lights mounted in frontof the grille when driving in hot weather.
If the temperature in the engine's coolingsystem becomes too high, a warning symbolwill appear in the instrument panel along withthe message Engine temperature Hightemperature Stop safely. Pull over to asafe location and let the engine idle for a fewminutes to cool down.
If the message Engine temperature Hightemperature Turn off engine or Enginecoolant Level low, turn off engine is dis-played, stop the vehicle and turn off theengine.
If the transmission begins to overheat, analternative gear shifting program will beselected. An integrated protective functionwill also be activated, the warning symbol willilluminate and the message Transmissionwarm Reduce speed to lowertemperature or Transmission hot Stopsafely, wait for cooling will be displayed inthe instrument panel. Follow the recommen-dations given by reducing speed or stopping
the vehicle safely and letting the engine idlefor a few minutes to let the transmissioncool.
If the vehicle begins to overheat, the air con-ditioning may be temporarily switched off.
After a prolonged period of driving indemanding conditions, do not turn off theengine immediately after stopping.
NOTE
It is normal for the engine's cooling fan tooperate for a short time after the engine isswitched off.

Symbols in the instrument panel
SymbolMeaning
High engine temperature. Followthe recommendations provided.
Low coolant level. Follow the rec-ommendations provided.
Transmission hot/overheated/cool-ing. Follow the recommendationsprovided.

MAINTENANCE AND SERVICE
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571

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. 569)
Engine oil specifications (p. 620)
Ignition modes (p. 395)
Vehicle status (p. 560)
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.

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MAINTENANCE AND SERVICE
572
Open the cap 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. 568)
Coolant specifications (p. 621)
Replacing bulbs
Bulb types vary depending on model and equip-
ment level. If a light bulb14 breaks, it can bereplaced by following the procedure shown inthe Owner's Manual.
If you are experiencing problems with any lights
other than light bulbs, contact a workshop15.
If there is a problem with an LED16 light, theentire lamp unit will normally need to bereplaced.
NOTE
For information on lights not mentioned in theOwner's Manual, contact a Volvo dealer or acertified 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.
14Some vehicles do not have any light bulbs.15An authorized Volvo workshop is recommended.16LED (Light Emitting Diode)

INDEX
629
Drive systems 410
Driving
cooling system 431
with a trailer 434
Driving economy 420
Driving through standing water 425
driving with a trailer
towball load 618
towing capacity 618
E
Economical driving420
Electrical outlet546
use548
Electrical system 574
Electric drive motor
specifications 619
electric motor 410
Range 421
Electric parking brake 400
Electronic immobilizer 243
emergency brake lights 159
Emission inspection readiness 556
Energy distribution
using map data 417
Engine
automatic start and stop of combustion
engine411
overheating431
start392
turn off394
Engine braking 397, 406
Engine compartment
coolant 571
engine oil 569
overview 568
Engine drag control 261
Engine oil 569
filling 570
filter 569
grade and volume 620
Engine shutdown 394
Engine specifications 619
Engine temperature
high 431
Environment 27
Ethanol content
max. 10% by volume 428
Exterior dimensions 615
Extra heater (Auxiliary heater) 224
F
Federal Clean Air Act556
Ferry transport418
Flooded road425
Fluids, volumes609, 622
Fluids and oils621, 622
Fog lights
front157
rear158
Four-C418
Front seat
blower214
climate207
heating208, 209
temperature215
ventilation209
Front seat manual180
Front seats, power181
adjusting passenger seat from driver's
seat188
adjusting seat181
Lumbar support187
massage184, 185
multifunction control 184, 185, 186, 187
Side bolsters186
store position182, 183
FSC, environmental labeling23