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STARTING AND DRIVING
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* Option/accessory, for more information, see Introduction.267
ECO*
Eco is a function 10
developed by Volvo to give
the driver the opportunity to actively drive more economically and to help reduce fuel consump-tion.
IntroductionWhen Eco is activated, the fol- lowing functions are modified:
• The automatic transmission's shifting points
• The engine management system and accel- erator pedal response
• Stop/stop function (Start/Stop – introduction(p. 262)): the engine can auto-stop beforethe vehicle has come to a full stop
• Eco Coast functionality is activated: enginebraking is disabled
• Climate system settings: certain functions(e.g., air conditioning) will be temporarilyreduced or deactivated
NOTE
When Eco is activated, several climate system parameters are changed and the function ofcertain current-consuming systems will bereduced. Some of these functions can be restarted manually but full functionality will not berestored until Eco is deactivated.
Function
ECO On/Off button in the center console
ECO symbol in the instrument panel
When the engine is switched off, ECO is deacti- vated and must be reactivated each time theengine is started (with the exception of certainengines). The
ECO symbol will be displayed in the instru-
ment panel and the indicator light in the ECO
button will be on when Eco is activated.
Eco on or offWhen ECO is deactivated, theECO symbol will not be dis-
played in the instrument panel and the indicator light in the ECO button will be off. The
function will remain deactivated until the button is pressedagain.
Eco CoastEco Coast is an integral part of the Eco function and essentially deactivates engine braking, allow-ing the vehicle to roll freely.
NOTE
To function optimally, Eco Coast should pri- marily be used when the vehicle can coast asfar as possible.
When the driver releases the accelerator pedal, the transmission is automatically disengagedfrom the engine and engine rpm will be reducedto the idle level (approx. 700-800 rpm), whichhelps reduce fuel consumption.
10 Option on models equipped with certain 4-cylinder engines
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STARTING AND DRIVING
* Option/accessory, for more information, see Introduction.
284 nents, altering emission system components or location or removing components, and/orrepeated use of leaded fuel.
NOTE
Unleaded fuel is required for vehicles with three-way catalytic converters.
Heated oxygen sensorsThe heated oxygen sensors monitor the oxygen content 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
•
Information displays – warning symbols(p. 69)
• Engine and cooling system (p. 277)
Economical driving
Better driving economy may be obtained by thinking ahead, avoiding rapid starts and stopsand adjusting the speed of your vehicle to imme-diate traffic conditions.
Economical driving conserves natural
resources
Observe the following rules: • Bring the engine to normal operating tem- perature as soon as possible by driving witha light foot on the accelerator pedal for thefirst few minutes of operation. A cold engineuses more fuel and is subject to increasedwear.
• Whenever possible, avoid using the vehiclefor driving short distances. This does notallow the engine to reach normal operatingtemperature.
• Drive carefully and avoid rapid accelerationand hard braking.
• Use the transmission's Drive (
D) position as
often as possible and avoid using kick-down.
• Using the transmission's Sport mode 13
may
increase fuel consumption somewhat. Use the transmission's Drive ( D) position as often
as possible. For additional information about Sport mode, see Transmission – Geartronic(p. 258). •
Using the engine's optional Eco function canhelp improve fuel economy. For additional information, see ECO
* (p. 267).
• Do not exceed posted speed limits.
• Avoid carrying unnecessary items (extra load) in the vehicle.
• Maintain correct tire pressure. Check tirepressure regularly (when tires are cold).
• Remove snow tires when threat of snow orice has ended.
• Note that roof racks, ski racks, etc, increaseair resistance and also fuel consumption.
• At highway driving speeds, fuel consumptionwill be lower with the air conditioning on andthe windows closed than with the air condi-tioning off and the windows open.
• Using the onboard trip computer's fuel con-sumption modes can help you learn how todrive more economically.
Other factors that decrease gas mileage are:
• Dirty air cleaner
• Dirty engine oil and clogged oil filter
• Dragging brakes
• Incorrect front end alignment
13
Certain models only.
Page 383 of 398
SPECIFICATIONS
381
Air conditioning – specification and volume
The air conditioning system in your vehicle con- tains the following:
Refrigerant : R134a (HFC134a)
Volume: 1.7 lbs (770 g)
Compressor oil : PAG