2018 AUDI A8 roof rack

lL t:0 ....
"" ......
"" .... 0 0 :c ' -Do not hang heavy objects on the coat
hooks, as they could cause personal injury in
a sudden stop.
CD Note
Objects on the rear shelf that rub against the
rear window can damage the rear window de­
fogger wires.
@ Tips
- A vent slot is located between the shelf and
the rear window. Do not b lock the vent with
any items you may place on the rear window
shelf.
- Do not p lace bulky items on the rear window
shelf as they could restr ict or block the driv­
er's vision in the rear view mirror.
Roof rack
A ppl ies to: ve hicles with roof rac k
Fig . 78 Attachment po ints for the roof rack
If luggage or cargo is to be carried on the roof,
you must observe the following:
- Only a specially designed roof rack may be used
on your veh icle . These roof racks are the basis
for a complete roof rack system. Additional at­
tachments/carrier systems are necessary to
transport luggage and sports equipment . We
recommend roof racks and attachments from
the Audi Genu ine Accessor ies program .
- When installing the roof rack, make sure that it
is mounted only at the designated points on
the roof
c::> fig . 78 .
-The permissible roof load for your vehicle is
220 lbs (100 kg) . The roof load is the total of
the weight of the roof rack, the attachments and the cargo you are carrying. However, you
S eats and storag e
must also note the pe rmitted load of the carri ­
er system being used . For the permitted axle
load and the permitted tota l vehicle weight,
see
Q page 333.
A WARNING
-Follow the installation instruct ions provided
wit h the roof rack system . If you do not se­
cure the roof rack system and objects on the
roof correctly, they could come loose from
the vehicle and ca use a n accident.
- Using a roof rack system increases the r isk
of an acc iden t, because it changes the d riv­
ing characte risti cs by shifting the center of
g ravi ty and/or the increasing the sur face
area exposed to wind. Adapt your driving
and speed to the current cond itions.
CD Note
Make su re that the open luggage compart­
ment lid and the tilt ing/slid ing sun roof * do
not come into contact with objects on the
roof.
@ For the sake of the environment
Your vehicle will use more fue l due to the in­
creased wind resistance. So remove the roof rack after using it .
Luggage compartment
General information
WARNING
Read and fo llow the important safety preca u­
tions in
Q page 213, Storing cargo correctly .
65

Drivin g
-Avoid driving through sa lt water, because
this can cause corrosion .
Economical and environmentally-friendly
driving
The amount of fuel consumption, the env iron­
mental impact and the wear to the engine,
brakes and t ires depends mostly on your dr iv ing
style. W it h an anticipatory and economic dr iv ing
style , fu el consumption can be reduced by ap ­
p roximate ly 10 -15% . The following tips wi ll help
you conserve the environment and your money at the same time .
Anticipatory driving
A veh icle uses the most fuel when acce le rating.
When you dr ive with ant ic ipat io n, you do no t
need to brake as often and so you accelerate less .
When possib le, let your vehicle coast with a
gear
eng aged ,
for example, when you notice that the
next traffic light is red. This produces an engine
braking effect, which helps to protect the brakes
and tires and reduces the emissions and fuel con­
sumpt ion to zero (fuel shut -off during decelera­
tion) .
Shift efficientl y
Upshifting earlier is an effective way to save fuel.
Staying in a gear too long uses fue l unnecessari­
ly . Press down on the accelerator pedal slowly
and avoid "k ick-down" .
Avoid full accel eration
You shou ld rare ly trave l at the maximum vehicle
speed. High speeds cause a disproportionately h igh increase in fuel consumption, emissions and
traffic no ise . Slower driving saves fuel.
Reduce idlin g time
The Start/Stop system* he lps to reduce the idling
time automatically. In vehicles without the Start/
Stop system*, it is efficient to switch the eng ine
off when stopped at ra ilroad crossings and long
red l ights . Stopp ing the engine for 30 -40 sec­
onds already saves more fuel than the amount of
ext ra fuel needed to resta rt the eng ine.
74
It takes a ve ry long time in id le to warm the en­
gine up to operating temperature. Wear and
emissions are especially high in the warm -up
phase. Therefore, you shou ld begin driving im­
med iate ly after starting the engine. Avoid high
RPMs while doing this .
Hav e maintenance perfo rmed regul arly
By having maintenance performed reg ularly on
your vehicle, you can help to reduce fuel con­
sumption before you even start to drive. The maintenance condition of your vehicle not on ly
affects traffic safety and long-term value but al­
so impacts fuel consumpt ion. A poorly main­
ta ined engine can lead to fuel consumpt ion that
i s 10% hig he r th an no rma l.
Avoid short trip s
The engine and exhaust cleaning system must
reach their optimal operat ing temperature to ef­
fect ively reduce consumpt ion and emissions .
A cold engine uses a d isproportionately high
amount of fuel. The engine reaches operat ing
temperature and consumption normalizes only
after approximately 2 .5 m iles (4 km) .
Check the tire pressu re
To save fue l, make sure the t ires are always in­
flated to the correct pressure
¢ page 291. The
fuel consumpt ion can increase by 5% if the pres­
sure is only 0 .5 bar too low . Due to the increased
r oll ing resistance, low tire p ressures w ill also
l ead to greater tire wear and will affe ct driv ing
behav ior.
Drive w ith summer tires when poss ible because
t hi s can increase fue l economy by up to 10% .
Eliminate unnecessary weight
Since every pound of extra weight increases fuel
consumption, it pays to remove any unnecessary
weight.
A roof rack increases the w ind resistance on the
vehicle and shou ld be removed when it is not
needed. You will save approximately 12% of your
fuel when at speeds from 62-75 mph (100-120 km/ h).
.,.

u. co .... N
" N .... 0 0 :c ' If the front passenger airbag dep loys, the Feder ­
a l Standard requires the airbag to meet the "low
risk" deployment criteria to help reduce the risk
of injury through interaction with the airbag.
"Low risk" dep loyment occurs in those crashes
that take place at lower decelerations as defined in the electronic control unit
r;:;. page 23 7.
Al way s remember: Even though your vehicle is
equ ipped w ith Advanced A irbags, the s afest p lace
for children is properly restrained on the back
seat . Please be sure to read the important infor­
mat io n in the sect ions that follow and be su re to
h eed a ll of the WARN INGS.
A WARNING
T o red uce the r isk of injury when an airbag in­
flates, a lways wear safety be lts properly .
- If you are unrest rained, lean ing fo rwa rd, s it ­
t ing s idew ays or o ut of pos it ion in any way,
yo ur risk of in jury is much higher .
- Yo u will also receive se rious injur ies a nd
cou ld even be killed if you are up aga inst the
airbag or too close to it when it inflates
-
even with an Advanced Airbag I!!> page 22 7.
A WARNING
A child in a rearward-facing chi ld seat insta l­
led on the front passenger seat will be ser i­
ously injured and can be k illed if the front air­
bag inflates - even with an Advanced Airbag
System .
- Although the Advanced A irbag System in
yo ur vehicle is designed to turn off t he front
airbag when a rearward-facing ch ild re­
straint has been insta lled on the front pas­
senger seat, nobody can abso lutely g uara n­
tee that deployment is impossible in a ll con ­
c e ivable s ituat ions that may happen dur ing
the usefu l life o f yo ur vehicle .
- T he inf lat ing air bag w ill hit th e chi ld sea t or
infant carrier w it h great fo rce and will
smash the c hild seat and child against the
backrest , center a rmrest, door, or roof.
- Always install rearward -fac ing c hild re ­
straints on the rear seat .
- If you must install a rearwar d fac ing c hild
seat on the front passenger seat because of
Airbag syste m
except io n al circumstances and the PASSEN ­
GER AIR BAG OFF
li ght does not come on
and stay on, immed iate ly install the rea r­
faci ng chi ld seat in a rear seating pos it io n
a nd have the airbag system inspected by
your Aud i dea le r.
A WARNING
-
If, in exceptional c ircu mstances, you must in­
stall a forward-fa cing child rest ra in t on the
fron t passenger's seat:
- Always make su re the forward-facing seat
has bee n des igned and certified by its man­
uf acture r for use o n a front sea t with a pas ­
senge r front and side airbag.
- N eve r put the fo rw ar d-faci ng chi ld restra in t
up ag ainst o r very ne ar th e i nstr ument pan ­
el.
- Always move the fro nt passenge r seat to
the hig hest posit io n in the up and down ad ­
justment range and move it bac k to the
rearmost positio n in the seat's fo re and aft
ad justment range, as far away from the a ir ­
bag as poss ible, before install ing the for ­
ward-facing ch ild restraint .
- Always make sure that the safety be lt upper
anchorage is behind the c hild restraint and
not next to o r in front of the ch ild restraint
so that the safety be lt will be p roperly posi­
tioned .
- Make sure that t he
PASSENGER AIR BAG
OFF
l ight comes on and stays on a ll the time
wheneve r th e ignit ion is switched o n.
Advanced Airbag System components
The front passenge r seat in your ve hicle has a lo t
of ve ry important parts of t he Advanced A irb ag
System in it. These parts incl ude the weight ­
sensing mat, sensors, wiring, brackets, and
more . The f unction of th e system in the front
passenger seat is checked by the electronic con­
trol unit when the ign ition is on. The control unit
moni tors the Advanced Airbag System and turns
the a irbag ind icator light on when a malfunction
i n the system compone nts is detected . The func­
t ion of the a irbag ind icator light is described in
greate r deta il be low. Because t he front
233

Airbag syste m
Because airbags inflate in the blink of an eye with
great force, things you have on your lap or have
p laced on the seat cou ld become dangerous pro ­
jectiles, and be pushed into you if the airbag in­
flates .
When an airbag deploys, fine dust is re leased.
This is normal and is not caused by a fire in the
veh icle. Th is dust is made up mostly of a powder
used to lubricate the airbags as they deploy. It
could irr itate sk in .
It is important to remember that while the sup ­
p lemental a irbag system is designed to reduce
the likelihood of serious injuries, other injuries,
for example swelling, bruising and m inor abra ­
sions, can also happen when airbags inflate . A ir­
bags do not protect the arms or the lower parts
of the body. Front a irbags supplement the th ree­
point safety belts only in some fronta l co llisions
in which the veh icle decelerat ion is high enough
to deploy the airbags.
Front airbags will not deploy:
- i f the ign it ion is switched off when a crash oc-
c ur s,
- i n s ide collisions,
- in rear -end collisions,
- in rollovers,
- when the crash deceleration measured by the
airbag system is less than the minimum thresh­
o ld needed for airbag deployment as registered
by the electronic control unit .
The front passenger airbag als o will not
deplo y:
- when the front passenger seat is not occupied,
- when the weight on the front passenger seat as
sensed by the Advanced A irbag System indi­
cates that the front airbag on the passenger
s ide has to be turned off by the electronic con­
trol unit (the
P A SSENGER AIR BAG OFF light
comes on and stays on).
_& WARNING
Sitting in the wrong pos ition can increase the
r is k of serious in jury in c rashes.
- To reduce the risk of inju ry when the airbags
inflate, the d river an d passengers must
al-
236
ways sit in an upright posit ion, must not
lean aga inst or place any part of their body
too close to the area where the airbags are
located.
- Occupants who are unbe lted, out of posit ion
or too close to the airbag can be serious ly
in jured by an airbag as it unfolds with g reat
force in the blink of an eye
~ page 228.
_& WARNING
A child in a rearward-facing child seat instal­ led on the front passenger seat will be seri­
ously injured and can be killed if the front air­
bag inflates
-even with an Advanced Airbag
System.
- The infla ting air bag will h it the ch ild seat o r
infan t ca rrier wi th great force and wi ll
smash the child seat and child against the
backrest, center armrest, door or roof .
- Always install rear -fac ing ch ild seats on the
rear seat.
- If you must install a rea rw ar d facing child
seat on the front passenger seat because o f
except ional circumstances and the
PASSEN·
GER AIR BAG OFF
light does not come on
and stay on, immed iate ly install the rear­
facing chi ld seat in a rear seating posit ion
and have the airbag system inspected by
your Aud i dea le r.
_& WARNING
Objects between you and the airbag will in­
crease the r is k of injury in a c rash by interfe r­
ing wi th the way the airbag unfolds or by be­
ing p ushed into you as the air bag infla tes.
- Never hold things in you r hands o r on your
lap when the veh icle is in use.
- Never transport items on or in the a rea of
the front passenge r seat. Objects could
move into the area of the front airbags dur­
ing b raking or other s udden maneuvers and
become dangerous projectiles that can
cause serious persona l injury if the airbags
inflate.
- Never p lace or attach accessories or othe r
objects (such as cup holders, telephone brackets, large, heavy or bulky ob jects) on -

Airb ag syste m
by being pushed into you as the airbag in­
flates.
- Never p lace or attach accessories or other
objects (such as cup holders, telephone brackets, or even Large, bulky objects) on
the doors, over or near the area marked
"AIRBAG" on the seat backrests.
- Such objects and accessories can become
dangerous projectiles and cause injury
when the supplemental side airbag de­ ploys.
- Never carry any objects or pets in the de­ ployment space between them and the
airbags or allow children or other passen­
gers to travel in this position.
- Always use the built-in coat hooks only for
Lightweight clothing. Never leave any heavy
or sharp-edged objects in the pockets that
may interfere w ith side airbag deployment
and can cause personal injury in an accident.
- Always prevent the side airbags from being
damaged by heavy objects knocking against
or hitting the sides of the seatbacks.
- The airbag system can only be triggered
once. If the airbag has been triggered, the
system must be replaced by an author ized
Audi dealership .
- Damage (cracks, deep scratches etc.) to the
original seat covers or to the seam in the
area of the side a irbag mod ule m ust always
be repa ired immed iately by an authorized
Audi dealer .
- If children are seated imp roperly, their risk
of injury increases in the case of an acc ident
¢ page 249, Child safety.
- Never attempt to modify any components of
the a irbag system in any way.
- In a side collision, side a irbags w il l not func­
t ion properly if sensors cannot correctly
measure increasing air pressure ins ide the
doors when air escapes through larger, un­
closed openings in the door panel.
- Never drive with inter ior door tr im panels
removed .
- Never drive when parts have been re­
moved from the inside door panel and the
open ings they leave have not been proper­
ly closed.
2 4 6
- Never drive when loudspeakers in the
doors have been removed unless the
speaker holes have been properly closed.
- Always make certain that openings are
covered or filled if additional speakers or
other equipment is installed in the inside
door panels.
- Always have work on the doors done by an
authorized Aud i dea ler or qualified work­
shop.
Side curtain airbags
Description of side curtain airbags
The side curtain airbag system can provide sup­
plemental protection to properly restrained oc ­
cupants.
Fig. 237 S id e curt ain airbags, driver's sid e: side curtain air­
bag location
The side curtain airbags are located on both sides
of the interior above the front and rear side win­
dows¢
fig. 237. They are identified by the word
"AIRBAG" on the windshield frame and the cen­
ter roof p illar .
The side curtain airbag system supplements the
safety belts and can help to reduce the risk of in­
jury for occupants' heads and upper torso on the
s ide of the vehicle that is struck in a side colli­
sion. The side curtain airbag inflates in side im­
pacts and only when the vehicle acceleration reg­
istered by the control unit is high enough. If this
rate is below the reference value programmed in­
to the control unit, the side airbags will not be
triggered, even though the car may be badly damaged as a result of the collision .
It is not pos­
sible to define an airbag triggering range that
will cover every possible angle of impact, since
..,.

....
"' -N .... N
-0
0
J: ..
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production options weight
Ma ximum (permissible }
inflation pres sure
means the maximum cold infla­
tion pressure to which a t ire may
be inflated . Also called "maxi ­
mum inflation pressure."
Normal occupant weight
means 150 l bs. (68 kilograms)
times the number of occupants
seated in the veh icle up to the to­
tal seating capacity of your vehi­
c le.
Occupant distribution
means distribution of occupants
in a vehicle.
Outer diameter
means the overall diameter of an
inflated new tire .
Overall width
means the linear distance be­
tween the exteriors of the side­
walls of an inflated tire, including
elevations due to labeling, deco­
rations, or protective bands or
ribs .
Wheels
Ply
means a layer of rubber-coated
parallel cords .
Production options weight
means the combined weight of
those installed regular production
options weighing over 5 lbs. (2.3 kg) in excess of those standard
items which they replace, not pre ­
viously considered in curb weight
or accessory weight, including heavy duty brakes , ride levelers ,
roof rack, heavy duty battery, and
special trim .
Radial ply tire
means a pneumatic tire in which
the ply cords that extend to the beads are laid at substantially 90
degrees to the centerline of the
tread .
Recommended inflation
pressure
see ~ page 286, Cold tire infla­
tion pressure .
Reinforced tire
means a tire designed to operate
at higher loads and at higher in­
flat ion pressures than the corre­
sponding standard tire. Rein ­
forced tires may be iden tified as
.,.
28 7

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

Index
Rain/light sensor
H eadlights . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Intermittent mode (windshield wipers) . . . SO
Range (tank level) . . . . . . . . . . . . . . . . . . . . . . 12
Reading lights . . . . . . . . . . . . . . . . . . . . . . . . . 46
Rear fog lights . . . . . . . . . . . . . . . . . . . . . . . . 43
Rear lid
refer to Luggage compartment lid . . . . . . . 33
Re ar Se at Entertainment (RSE) . . . . . . . . . . 194
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Rearview camera
refer to Parking systems ....... .. . 116 ,117
Rearview mirror . . . . . . . . . . . . . . . . . . . . . . . 48
Rear window defogger . . . . . . . . . . . . . . . . . . 71
Rear window sunshade . . . . . . . . . . . . . . . . . . 49
Recircu lation mode (automatic climate con-
trol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Recuperation . . . . . . . . . . . . . . . . . . . . . . . . . 12
Refrigerator Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Remote control
refer to Remote control key . . . . . . . . . . . . 28
Remote control key . . . . . . . . . . . . . . . . . . . . 28
Remote control operation Garage door opener (Homelink) . . . . . . . . . 41
Repair manuals . . . . . . . . . . . . . . . . . . . . . . . 336
Repairs Airbag system . . . . . . . . . . . . . . . . . . . . . . 240
Replacement key . . . . . . . . . . . . . . . . . . . . . . 28
Replacing Light bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 326
Reporting Safety Defects ........... 215,216
Reset button (trip odometer) . . . . . . . . . . . . 10
Reset (restart) . . . . . . . . . . . . . . . . . . . . . . . 197
Residual heat (deluxe automatic climate con-
trol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Restart (reset) . . . . . . . . . . . . . . . . . . . . . . . 197
Retractor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Reverse gear . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Rewinding (audio/video file) . . . . . . . . . . . . 191
Rims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Clean ing . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Road noise compensation . . . . . . . . . . . . . . 205
Roof load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
348
Roof rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Route
refer to Route plan . . . . . . . . . . . . . . . . . . 170
Route criteria . . . . . . . . . . . . . . . . . . . . . . . . 173
Route guidance
refer to Navigation . . . . . . . . . . . . . . . . . . . 166
Route list . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Route plan Editing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Route list . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Storing 170
s
Safe driving habits . . . . . . . . . . . . . . . . . . . . 208
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Airbagsystem ... .. .. ............. .. 227
Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Cargo .... .... .. .. .. ............. .. 213
Correct seating position . . . . . . . . . . . . . . 209
Pedal area ....... .. .. ............... 213
Telephone. .. .. .. .. .. ... .. ..... ... .. 147
Safety be lt position . . . . . . . . . . . . . . . . . . . 223
Safety belts . .. .. .. .. .. ........... 219,222
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Securing child safety seats . . . . . . . . . . . . 259
Safety be lt warning light . . . . . . . . . . . . . . . 219
Safety instructions for side curtain airbags . . . . . . . . . . . . . . . 248
for using child safety seats . . . . . . . . . . . . 252
for using safety belts . . . . . . . . . . . . . . . . . 221
Monitoring the Advanced Airbag System . 239
Sc rewdrive r . . . . . . . . . . . . . . . . . . . . . . . . . . 312
SD card reader . . . . . . . . . . . . . . . . . . . . . . . 182
Seat adjustment Head restraints . . . . . . . . . . . . . . . . . . . . . 211
Seat heating/ventilation . . . . . . . . . . . . . . . . 71
Seating position Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Front passenger . . . . . . . . . . . . . . . . . . . . . 210
Incorrect seat position . . . . . . . . . . . . . . . 212
Occupants. . . . . . . . . . . . . . . . . . . . . . . . . . 209
Rear passengers . . . . . . . . . . . . . . . . . . . . . 211
Seats Adjusting the front seats . . . . . . . . . . . . . . . 54
Adjusting th e rear seats . . . . . . . . . . . . . . . 56