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Audi A8 2018 - On-Board Diagnostic System (OBD)

Audi A8 2018
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Drive to an authorized Aud i dea ler or a ut horized
Audi Service Facility immediately to have t he
mal funct ion corrected.
~ D Light/rain sensor
El Automatic headl ights / automatic wipe rs:
System fault
The light/rain sensor is malfunctioning.
The low beams remain swit ched on at all t imes
for safety reasons when the light switch is in the
AUTO position. You can continue to turn the
lights on and
off using the light switch . You can
still control all functions that are independent of
the ra in sensor through the windshie ld w iper lev-
er .
Drive to an aut horized Audi dea ler or a ut horized
Aud i Service Facility immediately to have the
malfunct ion corrected.
!-: Sport differential
Applies to: vehicles with sport differential
(I Sport differential : System fault
There is a malfunction with the sport differentia l.
Drive to an authorized Aud i dea le r o r a ut horized
Audi Service Facility immediately to have t he
malfunction corrected.
I'll Sport differential : Overheating
The transm iss ion temperature has increased s ig-
nificantly due to the sporty driving manne r. Drive
in a less sporty manner until the temperature re-
turns to the normal range and the ind icator ligh t
sw itches of .
A WARNING
Cont act an author ized Audi dealer or au t ho r-
ized Aud i Serv ice Facility if the sport diffe ren -
tial is fau lty or mal functioning. The repair
must be performed by tra ined personne l us-
ing the correct oi l in order to ens ure safety .
Coc k pit o v er v iew
¢¢Turn signals
If the B or 1B ind icator light blinks , the tur n
signals a re act ivated. If bot h ind icator lights are
blinking, the emergency flashers are activa t ed.
If an ind icator light blinks tw ice as fast as usual,
a turn signal bul b has fai led. Carefully d rive to an
autho rized Aud i dea le r or a utho rized Aud i Serv ice
Facility immed iate ly t o have t he ma lfunction co r-
rected . The indicator light does not indicate a
malfunction if a turn signal on the trailer or on
the vehicle fa ils in trailer towing mode.
(D Tips
For more information on the tu rn signa ls, re -
fer to~
page 44.
On-Board Diagnostic
System (OBD)
Malfunction Indicator Lamp (MIL)
The Malfunction Indicato r Lamp (MIL) ¢..ijj in the
instrument cluster is part of the On-Board Diag-
nostic (OBD II) system .
The warning/indicator light illuminates w hen the
ignition is switched on and goes out after the en -
gine starts and the idle has stabilized . This indi -
cates that the MIL is wor king properly.
If the light doe s not go out after the eng ine is
started, or illuminates while you are driving, a
malfunction may exist in t he engine system. If
the light illuminates, the catalytic converter
could be damaged.
Continue driving with reduced powe r (avoiding
sustained high speeds and/or rapid accelera -
tions) and have the condit ion corrected. Contact
your authori zed Aud i dea ler .
If the light illuminates, the electronic speed lim -
iter may also be malf unctioning. For more infor -
mation
c> page 26, Electronic speed limiter .
An improperly closed fue l filler cap may also
cause the MIL light to illuminate
c> page 2 70.
25

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