2018 AUDI A8 light

Emergency assistance
Taking the wheel off/installing the spare
Follow these instructions step-by-step for chang­
ing the wheel .
Fig. 28 0 Changing a wheel: using the screw driver handl e
(wit h th e blade re m oved) to turn the bol ts
F ig . 2 81 Changing a wheel: alignment p in inside t he top
hole
Afte r you have loosened a ll w heel bo lts and
raised t he vehi cle off the ground, remove and re­
p lace the whee l as fo llows:
Removing the wheel
• U se the hexagonal so cket in the screwdriver
handle
t o comple tely remove the topmost
whee l bolt and set it aside on a
clean surfa ce
¢ fig. 280 .
• Screw the th readed end of the alignment pin
from the tool kit hand-tight into the empty bolt
hole¢
fig. 2a1 1>.
• The n remove the other whee l bolts as desc ribed
above.
• Takeoff th e wheel leav ing the a lignm ent pin in
the bolt ho le
¢ 0 .
l) Applies to vehicles with ceram ic brake rotors*: Use a sec­
ond alignment
pin* (stored in th e spa re whee l well mo ld­
ing) for the lower ho le, fo llowing t he descr iption for the
first alignment pin .
318
Putting on the spare wheel
• Lif t the sp are whee l and caref ully slide it over
t he alignment p in to guide it in place
¢ (D .
• Use the hexagonal socket in the sc rewdr iver
ha nd le to screw in and tighten a ll w heel bolts
slightly.
• Remove the alignment pin and insert and tight­
en the remaining w heel bo lt slight ly like the
rest.
• Tu rn the jack hand le co unte r-clockw ise to lowe r
t he vehicle unt il t he jac k is f ully re leased.
• Use the w heel bo lt wren ch to tighten a ll wheel
bolts fi rm ly¢
p age 315. Tighten them cross­
wise,
from one bo lt to the (a pprox imately) op ­
posite one, to keep the whee l centered.
([» Note
When remov ing o r installin g the wheel, the
rim co uld hit the brake rotor/ce ramic brake
r otor * and damage t he rotor . Work carefully
and have a second person he lp you.
(D Tips
N eve r use the he xagonal socket in the han dle
of the sc rew drive r to loosen or t ig hten the
whee l bolts.
- Pull the reversible blade from the screwdr iv­
er before yo u use t he hexagona l soc ket in
t h e handle to t urn the whee l bolts.
- When mounti ng tires with
unidirectional
tread design
make sure the tread pattern is
pointed the right
way¢ page 319.
- The wheel bolts sho uld be clean and easy to
t u rn. Check for dirt and corrosion on the
mating surfaces of both the wheel and t he
hub. Remove all dirt from these s urfaces be­
fore remounti ng the whee l.

Fuses and bulbs
Fuses and bulbs
Electrical fuses
Changing fuses
A fuse that has blown will have metal strips that have burned through .
Fig. 284 Driver side of the cockp it: fuse panel cover
1
•
Fig. 285 Luggage compartment: fuse panel cover
The fuses are located on front left and right of
the cockpit and behind the trim on the right side
of the luggage compartment.
.. Switch the ignition and all electrical equipment
off.
.. Check the following table to see which fuse be­
longs to the equipment .
.. Remove the cover c::> fig. 284 or c::> fig. 285 .
.. Remove the colored plastic clip from the fuse
panel, if necessary
<=:>page 323 , fig. 286. You
can dispose of the plastic clip .
.. Remove the clamp from the rear side of the
cover
c::> fig. 284 .
.. Remove the fuse using the clamp .
.. Replace the blown fuse only with an identical
new one .
.. Install the cover.
322
Fuse color identification
Color Current rating
in amps
Black 1
Purple 3
Light brown 5
Brown 7.5
Red 10
Blue 15
Yellow 20
White or transparent 25
Green 30
Orange 40
A WARNING
-
Do not repair fuses and never replace a blown
fuse with one that has a higher amp rating.
This can cause damage to the electrical sys­
tem and a fire.
(D Note
If a new fuse burns out again shortly after you
have installed it, have the electrical system
checked as soon as possible by an authorized
Audi dealer or authorized Audi Service Fac ili­
ty .
(!) Tips
-The following table does not list fuse loca­
tions that are not used .
- Some of the equipment listed in the follow­
ing tables applies only to certain model ver­
sions or certain optional equipment.

lL t:0 ....
'"" ......
'"" .... 0 0 :c ' Driver's side cockpit fuse assignment
Fig. 286 Drive r side cockpit: fuse panel with plastic bracket
Fuse panel @ (brown)
No. Equipment
1 Light switch
2 Eme rgency start coil (driver iden tification)
3 Left rear door control module
4 Head-up display
5 Horn
6 Interior lights (headliner)
Steering column lever, multifunction
8 steer ing whee l controls, steering wheel
heating
10 Powe r steering column adjustment
11 Driver door control module
12 Diagnostic con nector, light/rain sensor
14 Power steering column adjustment
lS Power steering, A/C compressor
16 Brake booster
Fuse panel © (black)
No. Equipment
1 Front seat heating
2 Windshield wipers
Fuses and bulbs
Fuse panel © (black)
3 Front exterior lighting
4 Sliding/tilting sunroof
5 Driver power window
6 Dr iver 's seat (pne umat ic)
7 Panorama glass roof
8 Dynamic steering
9 Front exterior lighting
10 Windshield/headlight washer system
11 Left rear power window
12 Panorama glass roof
Front passenger side cockpit fuse
assignment
Fig. 287 Fro nt passe nge r side cockp it: fuse panel with
plastic bracket
Fuse panel @ (black)
No. Equipment
1 Anti-theft alarm system
2 Transmission contro l module
3 Front climate control fan
4 Engine s upply
6 Engine control module
7 Front passenger door control module
323

Fuses and bulbs
Fuse panel@ (black ) Fuse panel@ (black)
8 Front passenger power window 11 Right rear power window
9 ESC con trol module 12 Front passenger's seat (pne umatic)
10 E
SC control module
Luggage compartment fuse assignment
F ig . 28 8 Luggage co mpar tment : fuse panel w it h plastic bracket
Fuse panel @ (black) Fuse panel@ (black)
No. Equipment
10 Rear seat heat
ing, refrigerator, rearv iew
1 ESC b
utton , data logger, d iagnost ic con -
nector, BCM - 1, adaptive lig ht mir
ror
1 1 Electromechanical steering
2 Network ing gateway 12 Selec tor lever, BCM-2 vol tage
3 Adaptive air suspension
13 Side assist
4 Park ing a id 14 E ngine contro l module
5 Steer
ing column lever
15 Starter
6 S usp ension contro l system senso r
7 Belt tensioners, airbag control mod ule 16
L
eft head light (he adlights w it h adap tive
li ght)/head light range co ntr ol
Heated w asher flu id no zz les, Home link
8 (garage doo r opener), night vision system
cont rol mod ule, sport differe ntia l, ionizer
9
Electromecha nica l par king brake cont rol
modu le
Fuse panel ® (red)
No . Equipment
1 Left reversible belt tensioner
2 R
ight revers ible belt tensioner
324

u. co .... N
" N .... 0 0 :c ' Fuse panel @ (red)
3
Starter diagnosis, DC/DC converter (with
Start/Stop system)
4 DC/DC converter (with Start/Stop system)
5 Image processing
6
Right headlight (headlights with adaptive
light)
7 ESC control module
8
Sound actuator, AEM control module/
crankcase housing heater
9 Adapt ive cru ise control
10 Transmission control module
11 Climate control system sensors
Fuse panel © (brown)
No. Equipment
1 Electromechan ica l park ing brake
2 Suspension control system sensor
3 Rear Infotainment system control panel
4 Smart module ( tan k)
5 Front climate control system controls
6 Rea r climate control system control panel
7 Networking gateway
8 Refrigerator
9 Special functions interface
10 Cell phone adapter, Bluetooth handset
11 AEM control module
12 Selector lever
1 3 Inte rior lighting
14 Rear exterior lighting
15 Fue l pump
16 Electromechanica l parking brake
Fuse panel @ (black)
No. Equipment
1
Luggage compa rtment lid movement-acti-
vated opening
2 Luggage compartment sockets
3 Rear socket
4 Fro nt cigarette lighter
5 Adaptive air su spension
6 115 V socket
Fuses and bulbs
Fuse panel @ (black)
7 Electromechanical parking brake
8 Rear seat heat ing
9 Rear exterior lighting
10 Rear climate control blower
Rear sunshade, closing a id, luggage com-
11 partment lid lock, convenience key, fue l
filler door
12 L uggage compartment lid control module
Fuse panel © (red)
No. Equipment
1 Rear seat adjustment buttons
3 Left rear seat (pne umatic)
5 Tra iler hitch control module
6 Left rea r seat
7 Right rear seat
8 Trailer hitch control module
9 Trailer hitch control module
10 Right rear seat (pneumat ic)
Fuse panel ® (brown)
No. Equipment
1
Start/Stop system , radio receiver/sound
amplifier
2 Sound amplifier
3
Start/Stop system, Rear Seat Entertain -
ment, radio receiver/sound amplifier
5
Automat ic dimming interior rea rview mir-
r or (for Start-Stop system)
6 DVD changer (glove compartment)
7 TV tuner
8 Infotainment system control panel/drives
9 Instrument cluster, analog clock
10 Infotainment system d isp lay
11 Radio receiver
12
Rearview camera, perip heral cameras
(parking system)
325

Fuses and bulb s
Bulbs
Replacing light bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace burned out
bulbs for you .
It is becoming increasingly more and more diffi­
cult to replace vehicle light bulbs since in many
cases, other parts of the car must first be re­ moved before you are able to get to the bulb .
This applies espec ially to the light bulbs in the
front of your car wh ich you can only reach
through the engine compartment .
Sheet metal and bulb ho lders can have sharp
edges that can cause ser ious cuts, and parts
must be co rrectly taken apart and then p roperly
put back together to help prevent breakage of
parts and long term damage from water that can
enter housings that have not been properly re ­
sea led.
F or your safety, we recommend that you have
your authorized Audi dealer replace any bu lbs for
you, since your dealer has the proper tools, the correct bulbs and the expertise.
Ga s di sc ha rge la mp s (Xe non ligh ts):
Due to the high electrical voltage, have the bulbs
replaced by a qua lified techn ic ian . Head lights
with Xenon light can be identified by the high
voltage sticker.
LED headlights* requ ire no maintenance. P lease
contact your authorized Aud i dealer if a bulb
needs to be replaced.
A WARNING
Contact w it h high -vo ltage components of the
electrical system and improper rep lacement
of gas disc harge (Xenon) head light bu lbs can
cause serious personal injury and death.
- Xenon bulbs are pressurized and can ex ­
plode when being changed.
- Changing Xenon lamps requires the special
training, instructions and equipment.
- Only an a uthorized Audi dea ler or other
qualified workshop s hou ld change the bulbs
in gas disc harge lamps .
326
A WARNING
There are parts with sharp edges on the open­
ings and on the bulb holders that can cause
serious cuts .
- If you are uncertain about what to do, have
the work performed by an author ized Audi
dealer or other qual ified workshop . Ser ious
pe rsonal inju ry may resu lt from improperly
pe rformed wor k.
(D Tips
- If you must replace the light bulbs yourself,
always remember that the eng ine compart­
ment of any vehicle is a hazardo us a rea to
work in. Always read and heed all WARN­ INGS
~ page 272.
-It is best to ask you r author ized Audi dea le r
w henever you need to change a bulb.

u. co .... N
" N .... 0 0 :c ' Emergency situations
General
This chapter is intended for trained emergency
crews and working personnel who have the nec­
essary tools and equipment to perform these
operations.
Starting by pushing or
towing
~ Note
Vehicles with an automatic transmission can­
not be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine can be started by con­
necting it to the battery of another vehicle .
If the engine should fail to start because of a dis­
charged or weak battery, the battery can be con­
nected to the battery of
another vehicle, using a
pair of jumper cables to start the engine.
Jumper cables
Use only jumper cables of sufficiently large cross
section
to carry the starter current safely. Refer
to the manufacturer's specifications.
Use only jumper cables with
insulated terminal
clamps which are distinctly marked :
plus(+) cable in most cases colored red
minus(-) cable
in most cases colored black.
A WARNING -
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal in­
jury. Follow the instructions below for safe
handling of your vehicle's battery .
-Always shield your eyes and avoid leaning
over the battery whenever possible.
-A dead battery can freeze at temperatures
around 32 °F (0 °C) . If the vehicle battery is
frozen, you must thaw it before connecting
the jump start cables. If you do not, this in-
Emergency situations
creases the risk of an explosion and chemi­
cal burns. After jump starting the vehicle,
drive to an authorized Audi dealer or author­ ized Audi Service Facility immediately to
have the vehicle battery checked.
- Do not allow battery acid to contact eyes or
skin . Flush any contacted area with water
immediately.
- Improper use of a booster battery to start a
vehicle may cause an explosion .
- Vehicle batteries generate explosive gases .
Keep sparks, flame and lighted cigarettes
away from batteries.
- Do not try to jump start any vehicle with a
low acid level in the battery .
- The voltage of the booster battery must also
have a 12-Volt rating . The capacity (Ah) of
the booster battery should not be lower
than that of the discharged battery. Use of
batteries of different voltage or substantial­
ly different "Ah " rating may cause an explo­
sion and personal injury.
- Never charge a frozen battery. Gas trapped
in the ice may cause an explosion.
- Never charge or use a battery that has been
frozen. The battery case may have be weak­
ened.
- Use of batteries of different voltage or sub­
stantially different capacity (Ah) rating may
cause an explosion and injury. The capacity
(Ah) of the booster battery should not be
lower than that of the discharged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS
c>page 272.
@ Note
- Applying a higher voltage booster battery
will cause expensive damage to sensitive
electronic components, such as control
units, relays, radio, etc.
- There must be no electrical contact between
the vehicles as otherwise current could al­
ready start to flow as soon as the positive
( + ) terminals are connected.
327

Emergency situations
@ Tips
The discharged battery must be properly con­
nected to the vehicle's electrical system .
When jump starting or charging the battery,
never connect the negative ground cable to
the battery negative post because the battery
manager system must be able to detect the
battery's state of charge. Always connect the
negat ive g round cable to the negative ground
post of the battery manager control unit.
Using the jump start
cable
Both jump start cables must be connected in the
correct order!
Fig. 289 E ngin e compartme nt: co nn ectors for jump start
cables and a charger
Fig. 290 Jump starting using a battery in anot her vehicle:
A
-p rov id in g current, B -drai ned
The procedure for connecting jump start cables
that is descr ibed next is designed to help jump
start your vehicle.
Vehicle with discharged battery:
~ Turn off lights and accessories, move automatic
transmission lever to N (Neutral) or P (Park)
and set parking bra ke.
328
Connecting the positive cable (red) to the
positive terminal
~ Open the cover on the positive terminal
qfig . 289.
1. Secure one end of the pos itive cable (red) to
the jump start pin
(D q fig. 290 (pin under
the cover =
"plus") on the vehicle that needs
to be started @.
2. Secure the other end of the positive cable
(red) to the posit ive terminal @on the bat­
tery provid ing the cur rent @.
Connecting the negative cable (black) to the
negative terminal
3. Secure one end of the negative cable (black)
to the negative terminal @ on the battery
that is providing the current @.
4. Secure the other end of the negative cable
(black) to the jump start
pin @ (hex head pin
= "negative") on the vehicle that needs to be
started @.
Starting the engine
~ Sta rt the eng ine on the vehicle providing the
jump start @and let it run at idle.
~ Now start the engine on the vehicle with the
drained battery @.
~ If the engine does not start, stop the starting
procedure after 10 seconds and then repeat it
after approx imately 30 seconds.
~ Remove the cables when the engi nes are run­
ning. Remove them in reverse order from the
way they were installed.
~ Close the cover on the posi tive terminal.
The battery is vented to the outside to prevent
gases from enter ing the vehicle interior. Make
sure that the jumper clamps are well connected
with their
metal ports in full contact with the
battery terminals .
A WARNING
-To avoid serious personal injury and damage
to the vehicle, heed all warnings and instruc­
tions of the jumper cable manufacturer. If in
doubt, call for road service.
-Jumper cables must be long enough so that
the vehicles do not touch.
..,.