Audi A5 Owner's Manual page 18

document_0900452a8179700c.book Seite 16 Donnerstag, 22. März 2007 10:19 10
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.
Applies to vehicles: with diesel engine

Glow plug system
The indicator lamp lights up to show that the glow plugs
are preheating.
Your vehicle is equipped with an automatic glow plug system.

The indicator lamp lights up while the glow plugs are preheating.
If the engine fails to start immediately, the glow plugs have not
finished preheating. In this case, keep the clutch pedal depressed
(or keep your foot on the brake if your vehicle has an automatic
gearbox) until the engine starts.
Note
If the glow plug indicator lamp should start flashing while the
vehicle is moving, this indicates a fault in the engine management
system. The engine should be serviced without delay.
If the indicator lamp fails to light up when the ignition is
switched on, this can mean that the glow plug system is defective.
The engine should be serviced.
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 196.
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 196.

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.