2019 VOLVO S90 TWIN ENGINE air conditioning

STARTING AND DRIVING
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445
Hybrid battery - The hybrid battery's functionis to store electrical current. This energy isprovided by plugging the charging cable intoan electrical outlet, through regenerativebraking or from the high-voltage generator.This provides current to power the electricmotor and to temporarily power the electricalair conditioning to precondition the passen-ger compartment.
Combustion engine - The combustion enginestarts when the charge level in the hybridbattery is too low to provide the power outputrequested by the driver.
High-voltage generator2 - Charges the hybridbattery. Starter for the combustion engine.
Can provide the combustion engine withextra electrical current.
Electric motor - Powers the vehicle usingelectricity. Can provide extra torque andpower during acceleration. Provides electricalall-wheel drive functionality. Regeneratesbraking energy into electrical current.

Related information
General information about Twin Engine(p. 408)
Starting and stopping the combustion enginein Twin Engine vehicles (p. 445)
Drive modes (p. 446)
Transmission (p. 440)
Factors affecting electric motor range(p. 455)
Starting and stopping thecombustion engine in Twin Enginevehicles
An advanced control system determines the dis-tance that the vehicle can be driven on the com-bustion engine, electric motor, or both at thesame time. When driving on only the electricmotor, the vehicle may automatically start thecombustion engine due to outside circumstan-ces, e.g. low ambient temperatures. This is com-pletely normal. The combustion engine will alsoalways start when the hybrid battery is nearlyfully discharged.

Climate settings at low temperatures
At low ambient temperatures, the combustionengine will sometimes start automatically to helpachieve the desired passenger compartmenttemperature and air quality. The amount of timethe combustion engine is running can be affec-ted by:
lowering the temperature
reducing blower speed
activating Pure drive mode.

Using the electric motor in hot or cold
weather
At very low or high ambient temperatures, theelectric motor's driving range and power may be
2CISG (Crank Integrated Starter Generator) - Combined high-voltage generator and starter.

STARTING AND DRIVING
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* Option/accessory.453
Leveling control settings*
Turn off leveling control before lifting the vehiclewith a jack to help avoid problems with thepneumatic suspension.

Center display settings
Disable Leveling Control
In certain situations, this function must be turnedoff, e.g. before the vehicle is raised using a jack*.The level difference caused by raising the vehiclewith a jack could cause problems with the pneu-matic suspension.
Turning off the function in the center display:
1.Tap Settings in the Top view.
2. Tap My CarParking Brake andSuspension.
3.Select Disable Leveling Control.

Related information
Leveling control* and suspension (p. 451)
Loading recommendations (p. 580)
Economical driving
Drive economically and more environmentallyconscious by thinking ahead, avoiding rapidstarts and stops and adapting driving style andspeed to the current traffic conditions.
To help achieve the greatest distance with thelowest fuel consumption with Twin Engine,observe the following:
Charge
Charge the vehicle regularly by plugging itinto an electrical outlet. Make it a habit toalways begin trips with the hybrid battery fullycharged.
Locate charging stations along your route.
If possible, choose parking spots with charg-ing stations.

NOTE
Charge the vehicle from the electricity grid asoften as possible!

Preconditioning
Whenever possible, precondition the vehiclebefore driving by connecting the chargingcable to an electrical outlet.
Avoid parking the vehicle somewhere wherethe interior will become too hot or too coldwhile the vehicle is parked. If possible, parkthe vehicle in a climate-controlled garage.
During a short drive after passenger com-partment preconditioning, turn off the pas-senger compartment fan or the air condition-ing in a hot climate.
If preconditioning is not possible when it iscold outside, use seat and steering wheelheating first. Avoid heating the entire pas-senger compartment to reduce the amountof current being taken from the hybrid bat-tery.

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STARTING AND DRIVING
* Option/accessory.454

Driving
Choose the Pure drive mode to help mini-mize electric power consumption.
Maintain a steady speed and a generous fol-lowing distance to traffic ahead to minimizebraking. This drive mode has the lowestpower consumption.
Balance energy requirements using theaccelerator pedal. Use the indicator on theinstrument panel to see available electricpower and avoid starting the combustionengine unnecessarily. The electric motor ismore effective than the combustion engine,especially at low speeds.
When braking is necessary, brake gentlyusing the brake pedal. This will help rechargethe hybrid battery. A regenerative function isintegrated in the brake pedal and can beaugmented by the electric motor's brakingcapacity when the gear selector is in modeB.
Higher speeds increase energy consumption- air resistance increases with speed.
Activate the Hold function in the Functionview at high speeds when traveling fartherthan is possible using the hybrid battery'scapacity.
Whenever possible, avoid using the Chargefunction to charge the hybrid battery. Charg-ing the battery using the combustion engine
increases fuel consumption and carbon diox-ide emissions.
In a cold climate, reduce heating of the wind-shield/rear window, mirrors, seats and thesteering wheel.
Maintain the correct pressure in the tires andcheck pressure regularly.
The type of tires used could affect energyconsumption - consult a retailer for advice onsuitable tires.
Remove unnecessary items from the vehicle- the heavier the load, the higher the fuelconsumption.
Roof loads increase air resistance andincrease fuel consumption. Remove roofboxes, ski racks, etc. that are not in use.
Avoid driving with the windows open.
Do not keep the vehicle still on an upwardgradient by using the accelerator pedal. Usethe brakes instead.

Related information
Drive-E ‒ purer driving pleasure (p. 27)
Energy distribution in hybrid mode using mapdata* (p. 450)
Factors affecting electric motor range(p. 455)
Using the electric motor only (p. 454)
Hybrid gauge (p. 83)
Checking tire pressure (p. 549)
Using the electric motor only
When using the electric motor, Volvo TwinEngine provides a combination of good fueleconomy, low emissions and high performance.
For energy-efficient driving:
Select the Pure drive mode to help maximizedriving range using only the electric motor.
Balance energy requirements using theaccelerator pedal. Use the indicator on theinstrument panel's hybrid gauge to see avail-able electric power and avoid starting thecombustion engine unnecessarily.
When braking is necessary, brake gentlyusing the brake pedal. This will recharge thehybrid battery.
Activate the Hold function in the Functionview at high speeds when traveling fartherthan is possible using the hybrid battery'scapacity.
Reduce current consumption in the passen-ger compartment by reducing e.g. fan speed,electric heating, or air conditioning use.
Also follow the general economical driving adviceregarding speed, tires and load to maximizerange.

Related information
General information about Twin Engine(p. 408)
Economical driving (p. 453)

MAINTENANCE AND SERVICE
* Option/accessory.595
Hood completely closed. The illustration is generic -details may vary according to vehicle model.

WARNING
Never drive with the hood open!
If there are any indications while driving thatthe hood is not completely closed, stop imme-diately and close it securely.

Related information
Engine compartment overview (p. 596)
Door and seat belt reminders (p. 51)
Climate control system service
Service and repairs on the air conditioning sys-tem should only be done by an authorized work-shop.
Troubleshooting and repairs
The air conditioning system contains a fluores-cent tracer substance. Ultraviolet light is used tosearch for leaks in the system.
Volvo recommends contacting an authorizedVolvo workshop.

Vehicles with R134a refrigerant
WARNING
The air conditioning system contains therefrigerant R134a under pressure. Serviceand repairs to the system should only be doneby an authorized workshop.

Related information
Volvo's service program (p. 584)
Replacing a windshield with head-
up display*
Vehicles with a head-up display have a specialtype of windshield that meets the requirementsfor displaying projected information.
Volvo recommends contacting an authorizedVolvo workshop for assistance replacing thewindshield. The correct type of replacementwindshield must be used in order for the head-updisplay to function properly.
Related information
Head-up display* (p. 138)
Cleaning the head-up display* (p. 620)

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SPECIFICATIONS
640
Engine oil. This label contains the recom-mended engine oil specifications.
Decal A/C. Refrigerant R134a.

NOTE
The decals shown in the Owner's Manual donot claim to be exact reproductions of thosefound in the vehicle. The purpose is to showapproximately how they look and about wherethey are located on the vehicle. The informa-tion that applies for your vehicle in particularis found on the decal on the vehicle.
Related information
Air conditioning specifications (p. 648)

SPECIFICATIONS
648
Fuel tank volume
The fuel tank's refillable volume is shown in thetable below.
All models
Liter (approx)60
US gallons (approx)15.9

Related information
Refueling (p. 460)
Octane rating (p. 462)
Air conditioning specifications
The climate system in the vehicle uses a freon-free R134a refrigerant. For information regardingthe refrigerant, refer to the decal located on theinside of the hood.
The prescribed grades and volumes for fluids andlubricants in the air conditioning system areshown in the tables below.

A/C Decal
Decal for R134a
Refrigerant
Vehicles with R134a refrigerant
WeightPrescribed grade
675 g (1.49 lbs) R134a
WARNING
The air conditioning system contains therefrigerant R134a under pressure. Serviceand repairs to the system should only be doneby an authorized workshop.

Compressor oil
VolumePrescribed grade
100 ml (3.38 fl. oz.) PAG SP-A2

Evaporator
CAUTION
The A/C system evaporator must never berepaired or replaced with a previously usedevaporator. The new evaporator must be certi-fied and labeled in accordance with SAEJ2842.

Related information
Climate control system service (p. 595)

INDEX
651
1, 2, 3 ...
4WD444
A
ABS
anti-lock brakes431
AC (Air conditioning)223
ACC - Adaptive Cruise Control 292, 295,
296, 297, 298, 299, 301, 302, 303, 304,
305, 306
Accessories and extra equipment 35
installation36
Accessory installation warning 36, 37
Active Bending Lights155
Adapting driving characteristics 270, 446
Adaptive Cruise Control 292, 295, 296,
297, 298, 299, 301, 302, 303, 304, 305, 306
change cruise control functionality 305
function292
manage speed296, 297
pass301, 302
radar sensor324
set time interval298, 299
troubleshooting304
Adjusting the steering wheel193
Airbag52
activation/deactivation56
driver's side53
passenger side53, 56
Air bag, see Airbag52
Air conditioning223
Air conditioning, fluid
volume and grade648
Air distribution201
air vents201, 202
changing202
defrosting215
recirculation214
table showing options204
Air quality198, 200
allergy and asthma199
passenger compartment filter201
Air recirculation214
Alarm266
deactivating267
Allergy and asthma-inducing substances 199
All Wheel Drive, AWD444
All Wheel Drive (AWD)444
All Wheel Drive (four-wheel drive) 444
Android Auto512, 514
Antenna
location255
Apple CarPlay509, 511
Approach lighting157
Apps480
Assistance at risk of collision372, 373,
374, 375, 376, 377, 378, 379, 381
Audio and media478
Audio system
HD digital radio490
SiriusXM® Satellite radio 490, 491, 493
Auto-climate214
Auto hold437
Auto-hold brakes437
activate and deactivate438
after collision439
Automatic car wash627
Automatic high beam153
Automatic locking260
Automatic relocking240, 253
Automatic Speed Limiter 279, 281, 282, 283
Automatic transmission440
kickdown444
oil647
Auxiliary heater232
INDEX