fuel consumption VOLVO S90 TWIN ENGINE 2019 User Guide

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STARTING AND DRIVING
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3. Press the drive mode control or tap its buttonin the center display to confirm the selection.
> The selected drive mode is shown in theinstrument panel.
If a drive mode is grayed out in the pop-up menu,it cannot be selected.

Related information
Drive modes (p. 446)
Energy distribution in hybrid mode
using map data*
The Hybrid drive mode is the vehicle's defaultdrive mode in which the electric motor and thecombustion engine work separately or togetherin hybrid mode. If a destination has beenselected in the navigation system*, the Predictive
Efficiency4 function can use map data to effec-tively distribute the electric power throughout thetrip.
This can lower fuel consumption in comparisonwith normal hybrid mode, in which the vehicle firstruns on electricity and then switches to the com-bustion engine when the hybrid battery is dis-charged.
If the distance to the destination is greater thanthe calculated range on the electric motor, thefunction will distribute electric power optimally forthe entire trip. This makes it possible to avoid sit-uations in which normal hybrid mode would oth-erwise use a large portion of the electric powerto e.g. use the electric motor at high speeds on ahighway and then use the combustion engine atlower speeds during city driving.
The greatest fuel savings are attained when thetrip begins on a highway, is between 50 and 100km (30 and 60 miles) long, and the hybrid batteryis fully charged at the start of the trip.
Requirements for the function
Certain conditions must be met for the functionto be possible:
A destination must be set in the navigationsystem and the distance to the destinationmust be longer than the possible rangeusing only the electric motor.
Hybrid drive mode must be selected.
The Hold and Charge functions must bedisabled.
The hybrid battery must be charged.

Usage tips
If you commute and it is not possible to chargethe vehicle at work, enter your workplace as awaypoint and your home as the destination. Dis-charging of the hybrid battery will then be distrib-uted over the entire commute to and from work.
Add similar commutes, i.e. the route between twocharges, as Favorites in the navigation system tofacilitate access.

Related information
Drive modes (p. 446)
Economical driving (p. 453)
4Certain markets only.

STARTING AND DRIVING
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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
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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)

STARTING AND DRIVING
457

Charge
Engine charges hybridbattery.
This function charges thehybrid battery with the help ofthe combustion engine forincreased use of the electricmotor at a later time.

Symbols in the instrument panel
The symbol is displayed in the hybrid battery gaugewhen Hold is activated.
The symbol is displayed in the hybrid battery gaugewhen Charge is activated.

Related information
Using the electric motor only (p. 454)
Economical driving (p. 453)
Hybrid gauge (p. 83)
Preparing for a long trip
It is important to have the vehicle's systems andequipment checked carefully before driving longdistances.
Check that:
the engine is running properly and that fuelconsumption is normal
there are no leaks (fuel, oil or other fluid)
the brake pedal is functioning optimally
all lights are working ‒ adjust the headlightheight if the vehicle is carrying a heavy load
tire tread depth and air pressure are at cor-rect levels. Change to snow tires when driv-ing in areas where there is a risk of snowy oricy roads
the start battery is sufficiently charged
the wiper blades are in good condition

Related information
Checking tire pressure (p. 549)
Filling washer fluid (p. 635)
Winter driving (p. 458)
Economical driving (p. 453)
Vehicle modem settings (p. 527)
Loading recommendations (p. 580)
Pilot Assist (p. 308)
Speed limiter (p. 275)
Tire sealing system (p. 564)

WHEELS AND TIRES
542
Tires
The function of the tires is to carry loads, providetraction on road surfaces, reduce vibrations andprotect the wheels from wear.
The tires significantly influence the vehicle's driv-ing characteristics. The type, dimensions, tirepressure and speed rating have a considerableimpact on how the vehicle performs.
Your vehicle is equipped with tires according tothe vehicle's tire information placard on the B-pil-lar (the structural member at the side of the vehi-cle, at the rear of the driver's door opening).

WARNING
A damaged tire could cause the driver to losecontrol of the vehicle.
CAUTION
Some Volvo models are equipped with anUltra High Performance tire and wheel com-bination designed to provide maximum drypavement performance with consideration forhydroplaning resistance. They may be moresusceptible to road hazard damage and,depending on driving conditions, may achievea tread life of less than 30,000 km (20,000miles). Even if this vehicle is equipped withVolvo's advanced AWD or stability system,these tires are not designed for winter driving,and should be replaced with winter tires whenweather conditions dictate.
The tires have good road holding characteristicsand offer good handling on dry and wet surfaces.It should be noted however that the tires havebeen developed to give these features on snow/ice-free surfaces.
Most models are equipped with "all-season" tires,which provide a somewhat higher degree of road-holding on slippery road surfaces than tires with-out the "all-season" rating. However, for optimalroadholding on icy or snow-covered roads, Volvorecommends snow tires on all four wheels.
When replacing tires, be sure that the new tiresare the same size designation, type (radial) andpreferably from the same manufacturer, on all
four wheels. Otherwise there is a risk of alteringthe vehicle's roadholding and handling characte-ristics.

Recommended tires
On delivery, the car is equipped with Volvo origi-
nal tires that have the VOL1 marking on the sideof the tires. These tires have been designed spe-cifically for your vehicle. It is therefore importantwhen replacing tires that the new tires have thissame marking to help maintain the vehicle's driv-ing characteristics, comfort and fuel consumption.

New tires
Tires are perishable goods. After a few years,they will begin to harden and their friction proper-ties will gradually deteriorate. Always replace tireswith the freshest tires possible. This is particularlyimportant for snow tires. A series of numbers is
1This may vary for certain tire dimensions.

MAINTENANCE AND SERVICE
597
Engine oil
For the recommended service intervals and war-ranties to be applied, an approved engine oilmust be used.
Volvo recommends:
If the engine oil is not checked regularly and thelevel becomes low, this could cause seriousengine damage.

CAUTION
To satisfy the requirements for the engine'sservice intervals, all engines are factory-filledwith a specially adapted synthetic engine oil.Great care has been put into the choice of oil,with consideration given to service life, starta-bility, fuel consumption and environmentalimpact.
For the recommended service intervals toapply, an approved engine oil must be used.Only use the prescribed oil grade to top off orchange the oil. Otherwise, there is a risk ofthe vehicle's service life, startability, fuel con-sumption and environmental impact beingaffected.
Failure to use engine oil of the prescribedgrade and viscosity could cause damage toengine-related components. Volvo Car Corpo-ration disclaims warranty liability for such typeof damage.
Volvo recommends entrusting oil changes toan authorized Volvo workshop.
Volvo uses different systems to warn if the oillevel is too low/high or the oil pressure is low. Onengine variants with an oil pressure sensor, a
warning symbol is displayed in the instrument
panel when oil pressure is low . On engine
variants with an oil level sensor, the warn-ing symbol in the instrument panel and displaymessages are used to alert the driver. Someengine variants have both systems. Contact aVolvo retailer for more information.
Change the engine oil and oil filter according tothe schedule specified in the Warranty and Main-tenance Records Information booklet. Oils of ahigher grade than that specified may be used. Ifthe vehicle is driven in adverse conditions, Volvorecommends using an oil with a higher gradethan that specified.

Related information
Checking and filling engine oil (p. 598)
Engine oil specifications (p. 646)

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)