Volvo S90 Owner's Manual page 427

All-wheel drive*
7
All-wheel drive (AWD ) means that the car is
driving all four wheels at the same time, which
improves traction.
To achieve the best possible traction, the motive
force is distributed automatically to the wheels
with the best grip. The system continuously cal-
culates the need for torque to the rear wheels,
and can immediately redistribute up to half of the
motor's torque to the rear wheels.
All-wheel drive also has a stabilising effect at
higher speeds. Under normal driving conditions,
the majority of power is transmitted to the front
wheels. When stationary, the all-wheel drive is
always engaged in preparation for maximum trac-
tion during acceleration.
All-wheel drive characteristics vary depending on
the selected drive mode.
Related information
Drive modes* (p. 425)
•
Gearbox (p. 417)
•
7 All Wheel Drive
Applies to automatic gearbox.
8
Drive modes*
Selection of drive mode affects the car's driving
characteristics in order to enhance the driving
experience and facilitate driving in special situa-
tions.
Using the drive modes it is possible to quickly
have access to the car's numerous functions and
settings for different driving needs. The following
systems are adapted to obtain the best possible
driving characteristics in each respective drive
mode:
Steering
•
8
Engine/gearbox /all-wheel drive*
•
Brakes
•
Shock absorption
•
Driver display
•
Start/stop function
•
Climate settings
•
Select the drive mode that best suits the current
driving conditions. Remember that not all drive
modes are available in all situations.
Selectable drive modes
Comfort
This is the car's normal mode.
•
STARTING AND DRIVING
When the car starts, it is in Comfort
the start/stop function is activated. These set-
tings mean that the car feels comfortable, the
steering is light, the shock absorption is soft and
body's movement is smooth.
This drive mode is the certification mode for car-
bon dioxide emissions.
Eco
Adapt the car for more energy-efficient and
•
environmentally-conscious driving with the
Eco mode.
The drive mode means, for example, that the
Start/Stop function is activated and the output of
certain climate settings is reduced.
Eco
When driving in mode, the driver display
shows an eco-meter that indicates in real time
how economical your driving is.
mode and
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425
* Option/accessory.