2018-2026 Audi Q8 SUV Driving -> Start/Stop system User Manual
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Driving -> Start/Stop system for Your Audi Q8 SUV First Generation (2018-2026)

Driving  
Energy management  
Start/Stop system  
Your vehicle is equipped with an intelligent ener-  
gy management system for distributing electrici-  
ty. This significantly improves the starting ability  
and increases the vehicle battery life.  
Description  
Applies to: vehicles with Start/Stop system  
The Start/Stop system can help increase fuel  
economy and reduce CO emissions. In Start/  
2
Stop mode, the engine shuts off automatically  
when stopped, for example at a traffic light.  
Tips  
If you drive short distances frequently, the  
vehicle battery may not charge enough  
while driving. As a result, convenience func-  
tions for electrical equipment may be tem-  
porarily unavailable.  
If certain conditions are met, the engine may  
stop before the vehicle has come to a complete  
stop. If you press the accelerator pedal when this  
happens, the engine will start and driving power  
will be transmitted.  
The vehicle battery will gradually drain if  
the vehicle is not driven for long periods of  
time, or if electrical equipment is used  
when the engine is not running. To ensure  
that the vehicle can still be started, the  
electrical equipment will be limited or  
turned off.  
The ignition and important assist systems such  
as the brake booster will remain available during  
the Stop phase. The engine will restart automati-  
cally when needed.  
The Start/Stop system is automatically activated  
once the ignition is turned on.  
Messages  
Turning the Start/Stop system off or on  
The button is located in front of the transmis-  
sion selector in the center console. The button  
will be illuminated when the function is turned  
off.  
The following messages may appear, depending  
on the vehicle equipment:  
Drive system: malfunction! Safely stop vehi-  
cle  
Press to turn on or off.  
There is a malfunction in the drive system. The  
brake booster and the power steering may stop  
working. Stop the vehicle immediately or as soon  
as possible and do not continue driving. Secure  
the vehicle against rolling before exiting the vehi-  
cle ðpage 100. Have the problem corrected by  
an authorized Audi dealer or authorized Audi  
Service Facility.  
If you turn off the system during a Stop phase,  
the engine will start again automatically.  
Basic requirements  
The driver's door and hood must be closed.  
The "P", "N", or "D" position must be engaged.  
The steering wheel must not be turned far in ei-  
ther direction.  
Drive system: malfunction! Please contact  
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.  
Service  
There is a malfunction in the drive system. The  
driving power is limited. Drive slowly to an au-  
thorized Audi dealer or authorized Audi Service  
Facility to have the malfunction corrected.  
Note  
Always turn the Start/Stop system off when  
driving through water ðpage 107.  
107  
Driving  
Starting and stopping the engine automat-  
ically  
Tips  
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.  
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)  
Stopping and starting the engine  
Applies to: vehicles with Start/Stop system  
Battery (charge status, temperature, power us-  
age)  
Press and hold the brake pedal until the vehicle  
Engine temperature  
has stopped. The indicator light appears in  
the instrument cluster once the engine stops  
automatically.  
Assist systems  
Driving behavior  
The engine starts again when you remove your  
Messages  
Applies to: vehicles with Start/Stop system  
foot from the brake pedal. The indicator light  
turns off.  
The following messages may appear, depending  
on the vehicle equipment:  
If the parking brake is set, the engine will only  
start again when the accelerator pedal is press-  
ed.  
Drive system: please start the vehicle manually  
This message appears when specific conditions  
are not met during a Stop phase. The Start/Stop  
system will not be able to restart the engine. The  
engine must be started with the  
Tips  
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  
START ENGINE STOP  
button.  
button during a Stop  
Vehicle starting system: malfunction! Please  
contact Service  
phase.  
If you 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.  
There is a malfunction in the Start/Stop system.  
Drive the vehicle to an authorized Audi dealer or  
authorized Service Facility as soon as possible to  
have the malfunction corrected.  
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 turn off when  
the vehicle is stationary. If you press the  
brake pedal harder, the engine will turn off.  
Brakes  
General information  
You can apply the vehicle's brakes using the brake  
pedal.  
108  

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