overheating AUDI A8 2017 Owners Manual

Cockpit overv iew
CD Note
-Auxiliary headlights and other accessories in
front of the cooling-a ir intake impair the
cooling effect of the coolant. This increases
the r isk of the engine overheat ing during
high outside temperatures and heavy en-
gine load.
- The front spoiler also he lps to distr ibute
cooling air correctly wh ile driving. If the
spoiler is damaged, the cooling effect will
be impaired and the risk of the engine over­
hea ting will inc re ase. See an a uthorized
A udi dealer or au thori zed A udi Service Fa­
cility for assistance .
Tachometer
The tachometer display s the engine speed in rev­
olutions per minute
(RPM).
You shou ld shift to the nex t lowest gea r whe n
the speed is below 1,500 R PM. The beginn ing of
the red zone in the t achometer indic ates the
maxim um permissible eng ine speed fo r all gears
once the engine has been broken in an d when it is
warmed up to operating temperature . Before
reaching this zone, you should shift into the next
h ighest gear, select the D selector lever pos ition,
or remove your foot from the accelerator pedal.
CD Note
The needle in the tachometer @ <=:> page 9,
fig. 3 may only be in the red area of the gauge
for a short t ime or the re is a risk of engine
damage. The locat ion where the red zone be­
gi ns varies depending on the engine.
@ For the sake of the environment
Upshifting early helps you to save fuel a nd re­
duce operating noise.
Fuel level
The display ® only works when the ignition is
sw itched on. If the fuel level d rops below 4 gal
(15
L), a red L ED will light up and the ll) ind ica­
tor light will tur n on
<=:> page 24 . The red LED
will blink when the fuel level is very low.
10
The fuel tank capacity of your ve hicl e is listed in
the
Techn ical Data section <=:> page 334 .
CD Note
Never dr ive until t he ta nk is comp letely emp­
ty. The irreg ular su pp ly of fuel t hat res ults
from that can cause engine m isfires . Uncom­
b uste d fue l w ill then enter the exhaust sys ­
tem. This ca n cause overheating and damage
to the catalyt ic converter.
Odometer
Fi g. 4 Instru ment cluster: odometer a nd reset button
Upper odomet er
The trip odometer shows the distance driven
since it was last reset. It can be used to measure
short distances.
The trip odometer can be reset to zero by press ­
ing the ~ reset button.
Lower odometer
The lower odomete r shows the tota l distance
that the vehicle has d riven.
Malfunction indicator
If there is a malfunction in the instr ument clus­
te r,
DEF will appear in the trip odometer display.
Have the malfu nction corrected as soon as possi­
ble.

0 co .... N ,..._
N .... 0 0 :c ' Drive to an authorized Aud i dea ler o r a uthorized
Audi Service Facility immediately to have the
malfunct ion corrected.
fi. D Light/rain sensor
El Automatic headl ights / automatic wipers :
System fault
The light/ra in sensor is malfunction ing.
The low beams remain switched on at all times
for safety reasons when the light switch is in the
AU TO 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 windshield w iper lev­
er .
Drive to an authori zed Aud i dea ler or authorized
Audi Service Facility immediately to have the malfunct ion corrected.
!-: Sport differential
A ppl ies to: ve hicles with sport differential
Ill Sport differential : System fault
There is a malfunction with the spo rt differentia l.
Dr ive to an authorized Aud i dea le r o r a uthorized
Aud i Service Facility immediately to have the
malfunct ion corrected.
Ill Sport differential : Overheating
The transm ission temperature has increased s ig­
ni ficantly due to the sporty driving manne r. D rive
in a less sporty manner until the temperature re­
turns to the normal range and the indic ator light
switches of .
& WARNING
-
Contact your authori zed A udi dealer or a
qualified workshop if the sport differentia l is
faulty or malfunctioning. The repair must be
performed by trained personnel using the cor­
rect o il in order to ensure safety.
Coc kpit o ve rv iew
¢ Q Turn signals
If the . or B indicator light blinks , the turn
s ignals a re act ivated. If bot h ind icator lights are
blinking, the emergency flashers are activated.
If an ind icator light blinks tw ice as fast as usual,
a turn signal bu lb has fai led. Carefully d rive to an
autho riz e d Aud i dea le r or authorized Aud i Serv ice
F acility immed iate ly to have the 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
Fo r more information on the turn signa ls, re­
fer to<=>
page 44.
On Board Diagnostic
System (OBD)
Malfunction Indicator Lamp (MIL)
The Ma lfunction Indicator Lamp (MI L) ¢,ij in the
inst rument cluster is part of the On-Boa rd Diag­
nostic (OBD II) system .
T he wa rning/indicator light ill uminates when the
ignition is sw itched on and goes out after the en­
gine starts and the idle has stabilized. This indi­
cates that the MIL is working properly.
If the li ght do es not go out after the eng ine is
sta rted, or i lluminates while you are driving, a
malfunction may exist in the engine system. If
the lig ht illuminates, the catalytic converter
could be damaged.
Cont inue driving
with reduced power (avoiding
s ustained high speeds and/o r rapid accelera­
tions) and have the condit ion corrected. Contact
your authori zed Aud i dea ler .
If the light i llum inates, the elect ronic speed lim­
iter may also be malf unct ion ing. For more infor­
mation
c> page 26, Electronic speed limiter .
An improperly closed fue l filler cap may also
ca use the MIL light to illuminate ¢
page 269.
25

0 co .... N ,..... N .... 0 0 :c ' A WARNING ,~
The sockets and the electrical accessories con­
nected to them only function when the igni­
tion is switched on . Incorrect usage can lead
to serious injuries or burns. To reduce the risk
of injur ies, never leave children unattended in
the vehicle with the vehicle key.
0 Note
- Never connect any accessories that provide
power (such as solar panels or battery
charger for the vehicle battery) to the ciga­ rette lighter. They can damage the vehicle
electrical system.
- To reduce the risk of damage to the sockets,
only use plugs that fit correctly.
115 volt socket
Appl ies to: vehicles with 115 volt socket
The 115 volt socket can be used when the igni­
tion is switched on
c::> ,& . When you push the con­
nector all the way into the socket, the child safe­
ty mechanism releases and current flows through
the socket .
Connectable devices
Elect rical devices can be connected to the 115
volt socket in the vehicle. The device connected
to the socket must not use more than 150 watts
of power (300 watts peak power). Check the
power usage of the connected device on the type
label.
LED on the socket
- Th e socket is ready for use when the LED is
green.
- There is a malfunction if the LED is blinking red.
The socket will switch off automatically due to
overcurrent or overheating. The socket will
switch on again automatically after a cool­
down period. Any devices that are connected
and switched on will activate again automati­
cally
c::> .&. .
Seats and storage
A WARNING
-The sockets and the electrical accessories
connected to them only function when the
ignition is switched on. Incorrect usage can
lead to serious injuries or burns. To reduce
the risk of injuries, never leave children un­
attended in the vehicle with the vehicle key.
- If devices or connectors that are heavy (for
example a power supply unit) are attached
directly to the socket, the holder can be­
come damaged, which increases the risk of inj ury.
- To reduce the risk of fatal injury, store all
connected devices securely when driving so
that they do not move around inside the ve­
hicle when braking or if involved a crash.
- To reduce the risk of fatal injury, do not spill
any fluids on the socket. Should any mois­
ture enter the socket, make sure that it has
dried out completely before using the sock­
et again.
- Devices connected to the vehicle behave dif­
ferently than when they are connected to a
regular power supply. Therefore, connected
devices can become hot during operation,
which can increase the risk of injury.
- There is a risk of injury when using adapters and extension cords, because the child safe­
ty on the socket is switched off and the
socket is powered with current.
- To reduce the risk of fatal injury, do not in­
sert any conductive objects, such as knitting
needles, into the contacts on the socket.
- To reduce the risk of injury, switch off any
connected electrical devices if the socket has switched off due to overheating.
0 Note
-Also read the operating manuals for the
connected devices.
- Do not connect any lamps that contain neon
tubes. Due to technical reasons, this can
cause malfunctions in the lamp.
- Do not connect any 230 volt devices to the
115 volt socket . The device can be dam­
aged. Check the permitted voltage of the
device according to the type label.
-
61