2018 AUDI A8 overheating

Cockpit overv iew
CD Note
- Auxiliary headlights and other accessories in
front of the cooling-air 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 helps 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
heating will inc rease. See an a uthorized
A ud i dealer or authorized Audi Service Fa­
cility for assistance .
Tachometer
The tachometer displays the engine speed in rev ­
olutions per minute
(RPM).
You should shift to the next lowest gea r when
the speed is below 1,500 RP M. The beginn ing of
the red zone in the tachometer ind icates the
maximum permissible engine speed fo r all gears
once the engine has been broken in and when it is
warmed up to operating temperature . Before
reaching this zone, you should shift into the next
highest gear, select the D selector lever position,
or remove your foot from the accelerator pedal.
~ Note
The needle in the tachometer @ c:> page 9,
fig. 3 may only be in the red area of the gauge
for a short time or there 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 and re­
duces operating noise.
Fuel level
The display @ only works when the ignition is
sw itched on. If the fuel level drops below 4 gal
(15
L), a red L ED will light up and the Ill indica­
tor light will turn on
c:> page 24. The red LED
will blink when the fuel level is very low.
10
The fuel tank capacity of your ve hicle is listed in
the
Techn ical Data section c:> page 334.
CD Note
Neve r drive until the tank is comp letely emp­
ty. The irregu lar supply of fuel th at results
from that can cause engine misfires . Uncom­
busted fuel w ill then enter the exhaust sys­
tem. This can cause overheating and damage
to the catalyt ic converter.
Odometer
Fig. 4 Instru ment cluster: odometer and reset button
Upper odometer
The trip odometer shows the distance driven
s ince 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 total distance
that the vehicle has driven.
Malfunction indicator
If there is a malfunction in the instrument clus­
ter,
DEF will appear in the trip odometer display.
Have the malfunction corrected as soon as possi­
ble.

lL t:0 ....
"' ......
"' .... 0 0 :c ' 12 volt sockets
Applies to: veh icles with sockets
Fig . 70 Side compartment in luggag e compartment: 12
volt socket•
Fig. 71 Example of a rear center console: 12 volt socket
The 12-volt sockets can be used for electrical ac­
cessories. The power consumption at the outlet
must not exceed 120 watts.
There is an additional 12 volt socket in the center
console
¢page 63, fig . 75.
_&, WARNING
The sockets and the electrical accessories con­
nected to them only funct ion when the igni­
tion is switched on. Incorrect usage can lead
to ser ious injuries or burns. To reduce the risk
of injuries, never leave children unattended i n
the vehicle with the vehicle key.
(D 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,
on ly use plugs that fit correct ly .
Seats and storage
115 volt socket
Applies to: vehicles with 115 volt socket
T he 115 volt socket can be used when the igni­
tion is switched on
¢ .&. . When you push the con­
nector all the way into the socket, the child safe­
ty mechanism re leases and current flows through
the socket.
Connectable devices
Electrica l 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
-The 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 sw itched on w ill act ivate aga in automati­
cally¢ .&.
_&, WARNING
- The sockets and the electrical accessories
connec ted to them only f unction when the
ignit ion is switched on. Incorrect usage can
lead to serious injuries o r 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
d ire ctly to the socket, the holder can be­
come damaged, wh ich increases the risk of
injury.
-To reduce the risk of fatal injury, store all
connected devices securely when driving so
that they do not
move around inside the ve­
h icle when braking or if involved a crash.
- To reduce the risk of fatal injury, do not spill
any fluids on the socket. Should any mo is-
ture enter the socket, make sure that it has
~
61

Seats and stor age
dried out complete ly before using the
socket again .
-Devices connected to the vehicle behave dif­
ferent ly than when they are connected to a
regu lar power supply. Therefore, connected
devices can become hot dur ing operation,
wh ich can increase the risk of injury .
-There is a risk of injury when using adapters
and extension cords, because the child safe­
ty on t he socket is switched off and the
socket is powered w ith current .
-To reduce the risk of fatal injury, do not in­
sert any conductive objects, such as knitting
need les, into the contacts on the socket.
-T o reduce the risk of injury, switch off any
connected electr ical devices if the socket
has switched off d ue to overheating.
(D Note
- Also read the operating manuals for the
connected dev ices .
- Do not connect any lamps that contain neon
tubes . Due to technical reasons, this can
cause malf unct ions in the lamp .
- Do not connect any 230 volt dev ices to the
115 volt socket . The device can be dam­
aged . Check the permitted voltage of the
device accord ing to the type label.
- With some power supply units, such as for
l aptops, switching them on disables the
in­
teg rated ove rcur rent shutdown . In this
case, disconnec t the power s upply un it from
the electrical equipment and reconnect
af­
ter approximately 10 seconds .
(D Tips
-Devices that are not shie lded or devices ne ar
the rear w indow antenna can ca use mal­
functions in the radio, TV area or in the vehi­
cle electrical system .
- T he functions on some devices may be limit ­
ed d ue to the low power output (wattage).
62
Full-Length center
console
Overview
Applies to: vehicles with full-length center co nsole
F ig. 72 Rea r: ful l-leng th center console
@ -115 Volt socket c:;, page 61
®-Cup ho lder c:;, page 63
© -12 Volt socket c:;, page 61
@ -Fo ld ing t able* c:;, page 63
© -ce nter armrest and storage compartments:
to open the deep compartment, press the right b utton and fold the center a rmrest upward. To
open the compa rtment for the massage function
remote cont rol*
c:;, page S 7 and for the tele ­
phone*, press the left button and fold the center
armrest upward.