Audi S5 Owner's Manual page 18

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16 Instruments and warning/indicator lamps
Note
If the warning lamp lights up while the vehicle is moving, this indi-
cates a fault in the engine management system. The engine should
be serviced by a qualified workshop without delay.
Electronic stabilisation program (ESP)
This warning lamp monitors the electronic stabilisation
program.

The warning lamp has the following functions:
It flashes when the ESP or traction control system (ASR) inter-
venes while the vehicle is in motion.
The warning lamp will light up continuously if the ESP or the
traction control system (ASR) has been switched off using the ESP
OFF button ⇒ page 186.
It lights up when the ignition is switched on and should go out
again after about 2 seconds. This signals that the lamp is working
properly.
It will light up continuously if there is a malfunction in the ESP.
It will also come on if a fault should occur in the ABS because the
ESP operates in conjunction with the ABS.
If the battery has been disconnected, if the battery voltage is very
low, or if the engine has been started from an outside power source,
the ESP system will perform an initialisation of the various on-board
sensors while you drive the first few metres. The warning lamp will
light up during this period. It will go out when the initialisation has
been completed.
If the warning lamp lights up and stays on after the engine is
started, this may mean that the control system has temporarily
switched off the ESP. In this case the ESP can be reactivated by
switching the ignition off and then on again. If the warning lamp
goes out, this means the system is fully functional.
For further information on the ESP ⇒ page 186.

Airbag system
This warning lamp monitors the airbag and seat belt
tensioner system.


The warning lamp should light up for a few seconds when the
ignition is switched on.
If the warning lamp does not go out, or if it lights up, flashes or
flickers when the vehicle is moving, this indicates a malfunction in
the system. This is also the case if the warning lamp does not light
up when the ignition is switched on.
WARNING
If a malfunction should occur, have the system checked immedi-
ately by a qualified workshop. If this is neglected, there is a risk
that the airbag system and/or belt tensioners may not be acti-
vated in an accident.
 
Turn signals
Depending on which turn signal is operated, either the left

right indicator lamp flashes. Both indicator lamps will flash when
the hazard warning lights are switched on.
If one turn signal should fail, the indicator lamp will start flashing
twice as fast.
This does not apply when towing a caravan or trailer. The indicator
lamp will stop flashing if one of the turn signals on the vehicle or the
caravan/trailer should fail. For further information on the turn
signals ⇒ page 58.

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