Audi A4 2023 Owner's Manual page 106

Driving
The Start/Stop system is automatically activated
'once the ignition is switched on.
Switching the Start/Stop system off and on
The @~ button is located above the selector lev-
er in the center console. The button will be illu-
minated when the function is switched off.
> Press @° to switch the system on or off.
If you switch the system off during a Stop phase,
the engine will start again automatically.
Basic requirements
~The driver's door and the hood must be closed
and the driver's safety belt must be fastened.
-"P", "N", or "D" must be engaged.
~The steering wheel must not be turned far in ei-
ther direction.
- The vehicle must have driven faster than 2 mph
(3 km/h) since the last time it stopped.
- The vehicle is not in trailer mode.
Always switch the Start/Stop system off when
driving through water > page 104.
= Depending on the driving situation, the en-
gine may already stop when coasting before
the vehicle has come to a complete stop.
= If you select the "D" position after shifting
into reverse, the vehicle must be driven fast-
er than 6 mph (10 km/h) in order for the
Start/Stop system to become active again.
This makes it possible to maneuver without
stopping the engine.
Stopping and starting the engine
Applies to: vehicles with Start/Stop system
» Press and hold the brake pedal until the vehicle
has stopped. The [J indicator light appears in
the instrument cluster once the engine stops
automatically.
» The engine starts again when you remove your
foot from the brake pedal. The indicator light
turns off.
104
If the parking brake is set, the engine will only
start again when the accelerator pedal is press-
ed.
—Press the brake pedal during a Stop phase
to keep the vehicle from rolling.
— The ignition will turn off if you press the
[START ENGINE STOP] button during a Stop
phase.
~ Ifyou leave the vehicle briefly during a Stop
phase and then enter again, the driver's
door must be closed and the safety belt
must be fastened in order for the engine to
be able to restart.
~You can control if the engine will stop or not
by reducing or increasing the amount of
force you use to press the brake pedal. For
example, if you only lightly press on the
brake pedal in stop-and-go traffic or when
turning, the engine will not switch off when
the vehicle is stationary. If you press the
brake pedal harder, the engine will switch
off.
Applies to: vehicles with Start/Stop system
The system checks if certain conditions are met
before and during the Stop phase, and deter-
mines if the engine stops and how long it re-
mains stopped. For example, if power usage is
high, the engine will not be stopped. Along with
other conditions, the following factors influence
the automatic engine start or stop:
— Environmental conditions (slopes, inclines, ele-
vation, temperature)
~ Battery (charge status, temperature, power us-
age)
— Engine temperature
— Assist systems
= Driving behavior
Depending on the engine, the [i] indicator light
may appear if the engine is not stopped.