Volvo S90 2019 Owner's Manual page 450

STARTING AND DRIVING
|| the accelerator pedal the gearbox is automatically
disengaged from the engine whose speed is
reduced to idling speed with reduced consump-
tion.
The function is best used where it is possible to
freewheel a long way, e.g. roads with a slight
downhill gradient or when there is a predictable
speed reduction to freewheel into a zone with a
lower speed limit.
Activating the freewheel function
The function is activated when the accelerator
pedal is fully released, in combination with the
following parameters:
Drive mode Eco is activated.
•
The gear selector is in D position.
•
Speed within the range of
•
approx. 65-140 km/h (40-87 mph).
The road's downhill gradient is not steeper
•
than approx. 6%.
The driver display shows COASTING when the
freewheel function is being used.
Limitations
The freewheel function is not available if:
Engine and/or gearbox are not at normal
•
operating temperature.
The gear selector is moved from the D posi-
•
tion and the manual position.
Only cars with automatic gearbox.
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448
The speed is outside the range of
•
approx. 65-140 km/h (40-87 mph).
The road's downhill gradient is steeper than
•
approx. 6%.
Manual gear changing is performed with the
•
steering wheel paddles*.
Deactivating and switching off the freewheel
function
In certain situations it may be desirable to deacti-
vate or switch off the function in order to use
engine braking. Examples of such situations may
be on steep downhill gradients or before an
imminent overtaking manoeuvre - in order to be
able to do it in the safest way possible.
Deactivate the freewheel function as follows:
Actuate the accelerator or brake pedal.
•
Move the gear selector to manual position.
•
Changing gear with steering wheel paddles*.
•
Switch off the freewheel function as follows:
Change drive mode*, or switch off the Eco
•
drive mode in the function view.
Even without the freewheel function, it is possible
to freewheel for short distances. This, in turn,
reduces consumption. However, for the best fuel
economy it is better to have the freewheel func-
tion activated and be able to freewheel for longer
distances.
Cruise control Eco Cruise
When using the cruise control in the Eco drive
mode, the car's acceleration and deceleration will
be lower compared to other drive modes, which
enables further fuel savings. This means that the
car's speed can be slightly above or below the
set speed.
On a smooth road, the car's speed can devi-
•
ate from the set speed when the cruise con-
trol is active and the car free-rolls.
On a steep uphill slope, the car's speed
•
drops until a downshift is made
reduced acceleration starts in order to
achieve the set speed.
On a downhill slope where the car free-rolls,
•
the car's speed can be slightly above or
below the set speed. The function uses nor-
mal engine braking to maintain the set
speed. The foot brake is also used if neces-
sary.
9 , then
* Option/accessory.