2014 AUDI S8 suspension

168 Airbag system
and safety belts with pretensioners are
scrapped, al l applicable laws and regula·
tions must be observed. Your authorized
Audi dea ler is familiar with these require·
ments and we recommend that you have
your dealer perform this service for you .
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
change the way that the Advanced Airbag Sys­
tem performs in a crash. For example, using
tire-rim combinations not approved by Audi, lowering the vehicle, chang ing the stiffness of
the suspension, including the spring s, suspen­
sion struts, shock absorbers etc. can change
the forces that are measured by the a irbag
sensors and sent to the electronic control
unit . Some suspension changes can, for exam­
ple, increase the force levels measured by the
sensors and make the airbag system deploy in
crashes in which it would not deploy if the
changes had not been made. Other kinds of
changes may reduce the force levels meas ­
ured by the sensors and prevent the airbag
from deploying when it should.
The sensors in the safety belt buckle for the
driver and front passenger seat tell the elec­
tronic control module if the safety belt is
latched or not. If the safety belt is being used,
the front airbag will deploy at a slightly high­
er rate of vehicle deceleration than if the safe ­
ty belt is not being used . Therefore, in a par­
ticular collision, it is possible that an airbag
will not deploy at a seating position where the
safety belt is being used but will inflate at the
position where the safety belt is not being
used . It is important that nothing interfere
with the safety belt buckles so that the sen­
sors can send the correct information about
safety belt use to the electronic control unit.
A WARNING
Changing the vehicle's suspension includ­
ing use of unapproved tire-rim combina­
tions can change Advanced Airbag per-formance and increase the risk of serious
personal injury in a crash.
- Never install suspension components
that do not have the same performance
characteristics as the components origi­ nally installed on your vehicle.
- Never use tire-rim combinations that
have not been approved by Audi.
A WARNING
--
Items stored between the safety belt buckle and the center console can cause
the sensors in the buckle to send the
wrong information to the e lectronic con­
trol module and prevent the Advanced Air­
bag System from working properly.
- Always make sure that nothing can inter­
fere with the safety belt buckles and that
they are not obstructed .
Knee airbags
Description of knee airbags
The knee airbag system con provide supple­
mental protection to properly restrained
front seat occupants.
Fig. 169 Driver 's knee airbag
The driver knee airbag is in the instrument
panel underneath the steering wheel
¢ fig . 169, the airbag for the passenger is at
about the same height in the instrument pan­
el underneath the glove compartment.
The knee airbag offers additional protection
to the driver's and passenger's knees and up­
per and lowe r th igh areas and supplements
the protection provided by the safety belts. ..,.

A WARNING ,~
- Do not park your vehicle over flammable
materials such as grass or leaves because
the high temperature of the diesel par­
t icu late filter cou ld start a fire .
- Do not apply an underbody protectant in the exhaust system area or a fire could start .
Shutting down vehicle
If you would like your veh icle to remain inop ­
erat ive for a longer period of time, contact an
Aud i or other specia lized dealer. They can ad­
vise you on necessary precautions e.g . corro­
sion prevention, ma intenance and storage.
Pay attention to additiona l information con­
cerning the battery. Refer to~
page 243.
Avoid damaging the
vehicle
When you a re driving on poor roads, or over
curbs, steep ramps, etc., make certain that low-lying parts such as spoilers and exhaust
system parts do not bottom out and get dam­
aged.
This is especially true for vehicles with low­
slung chassis (sports chassis)* and fully load ­
ed vehicles.
Driving through water
on roads
Note the following to avoid vehicle damage
when driving through water, for example on
flooded roads :
- The water must not be any higher than the
bottom of the veh icle body.
- Do not drive faster than wa lking speed.
A WARNING
After driving through water, mud, slush,
etc., the brakes may be slow to take effect
because of wet brake rotors and pads. Dry
-
Drivin g and environment 209
the brakes first by braking carefully to re­
store the full braking effect.
(D Note
- Vehicle components such as the engine,
transmission, suspension or electrical
system can be severely damaged by driv­
ing through water.
- Always switch off the Start-Stop-System
when driving through water~
page 88.
(D Tips
-Check the depth of the water before driv­
ing through it .
- Do not stop the vehicle, drive in reverse
or switch the engine off when driving
through water.
- Keep in mind that oncoming vehicles may create waves that raise the water
level and make it too deep for your vehi­
cle to drive through safely .
- Avoid driving through salt water because
it can cause corrosion.
Operate your vehicle
economically and minimize pollution
General
Your personal style of driving will determine
t he economy of your vehicle , as well as ex­
haus t and noise levels.
Fuel economy, environmental impact, and
wear on your engine, brakes and tires largely
depend on three factors:
- your personal driving style
- operating conditions
- technical limitations
If you ant icipate what you need to do next and
drive econom ically, you can easily cut your
fuel consumpt ion by 10-15 percent . Th is sec­
tion w ill give you some tips on how you can
help the env ironment and your pocketbook. •
•

264 Tires and wheels
The speed rating letter code( ¢ page 251) is
on the side wall of the tire¢ page
259.
A WARNING
Winter tires have maximum speed limits
that may be lower than your vehicle's max­
imum speed . Always know the maximum
speed before driving off. Never drive faster
than the speed permitted for your specific
winter tires. This will cause damage to the
tires leading to an accident and serious
personal injury to you and your passen­
gers.
A WARNING I>=
Driving faster than the maximum speed
for which the winter tires on your vehicle
were designed can cause tire failure in­
cluding a blowout and sudden deflation,
loss of control, crashes and serious per­
sonal injuries. Have worn or damaged tires
replaced immediately.
- Winter tires have maximum speed rating
that may be lower than your vehicle's
maximum speed .
- Never drive faster than the speed for
which the winter or other tires installed on your vehicle are rated.
A WARNING
Always adjust your driving to the road and
traffic conditions. Never let the good ac­
celeration of the winter tires and all-wheel
drive tempt you into taking extra risks . Al­
ways remember :
- When braking , an all-wheel drive vehicle
handles in the same way as a front drive
vehicle.
- Drive carefully and reduce your speed on
icy and slippery roads, even winter tires
cannot help under black ice conditions.
@) For the sake of the environment
Use summer tires when weather condi­
tions permit. They are quieter, do not wear
as quickly and reduce fuel consumption.
Snow chains
Snow chains may be fitted only to the front
wheels, and only to certain tire sizes . Ask your
authorized Audi dealer on which tire sizes snow chains can be used.
If you are going to use snow chains, then you
must install them on the front wheels at
least.
The snow chains must have low-profile links
and must not be thicker than 0.4 inch
(10,5 mm) , including the lock.
Remove wheel center covers and trim discs
before putting snow chains on your vehicle
¢ (!) . For safety reasons cover caps must then
be fitted over the wheel bolts. These are avail­
able from authorized Audi dealers.
A WARNING
=
Using the wrong snow chains for your vehi-
cle or installing them incorrectly can in­
crease the risk of loss of control leading to
serious personal injury.
- Snow chains are available in different
sizes . Always make sure to follow the in­
structions provided by the snow chain manufacturer.
- When driving with snow chains never
drive faster than the speed permitted for
your specific snow chains.
- Always observe local regulations.
(D Note
- Remove snow chains before driving on
roads not covered with snow to avoid
damaging tires and wearing the snow
chains down unnecessarily .
- Snow chains, which come into direct con­
tact with the wheel rim, can scratch or damage it. Therefore, make sure that the
snow chains are suitably covered. Check
the position of the snow chains after
driving a few yards and correct if neces­
sary. Follow the instructions from the
snow chain manufacturer when doing so.
-If the Adaptive Air Suspension should
malfunction, do not mount or use snow
11-

280 Fuses and bulbs
Luggage compartment fuse assignment
Fig. 23 2 Luggage compartment: fuse pa nel with plas tic bracket
Fuse panel @ (black )
No. Equipment Amps
No. Equipment Amps
11 Dynam ic steer ing 5
E SC button, da ta logger, di· 12
Selector lever,
BCM-2
5
1 agnostic connector, BCM · 1,
5 13 Audi s ide ass ist 5
adap tive light ing system
14 Engine control modu le
5
2 Networking gateway
5
15 Sta rter 40
3 adap tive air s usp ension 5
4 Parking system
5 16 Left headlight/Headlight
10/5
range control system
5 Steering colum n leve r 5
6
Suspension contro l system
5
sensor
Fu se panel @ (red)
No. Equipment Amps
7 Bel
t tensione rs, airbag con-
5
trol module
Heated washe r fl uid no zzles, 1
Left reversible be
lt tens ioner
2S
2 Right revers
ible belt ten -
25
sioner
H ome link (garage door
Starter diagnos is, DC/DC
8 opener), nig ht vision system 5
3 co
nverter (S tart-Stop-Sys·
5
con trol mod ule, sport diffe r-
tern)
ent ia l, ionizer
9
Electromechan ica l park ing
5
brake contro l modu le 4
DC/DC converter (Start-
7,5
Stop-System)
5 Image proce ssing 7,5
10 Rear seat heating, coo
ler, in·
5
terior rearview mirror

Fuses and bulb s 281
No . Equ ipment Amps Fus
e pan el@ (bla ck)
•
6 R
ight headlight (headlight
10
with adaptive light)
7 ESC control module 5 No. Equipment Amps
1 Automatic luggage com
-
5
partment lid
•
8
Sound actuator, AEM control
7,5
module 3 Rear
sockets 20
5 adaptive air suspension
15
9 Adaptive cruise control 10
6 115-Vsocket 25
10 Transmiss
ion control mod-
5
ule 7 E
lectromechanical parking
30
brake
11 Climate control
system sen-
5
8 Rear seat heating 25
sors
9 Rear exterior lighting 20
Fuse pan el© (bro w n)
No. Equipment Amps
10 Rear climate control system
20
blower
1 E
lectromechanical parking
5
brake
2 Suspension control system
5 Rear
sun shade, closing aid,
11 luggage
compartment lock,
20
convenience key, fue l filler
door
sensor
3 Right rear door
control mod-
7,5
ule 12
Luggage compartment
lid
30
control module
4 Smart modul tank 5
Fuse panel ® (red)
5 Front
climate control system
15
contro ls
6 Rear climate control
system
10
controls N o. Eq uipm ent Amps
1 Rear
seat adjustment but-
5
tons
3 Left rear seat (pneumatics) 7,5
7 Networking gateway 5
5 Tra
iler hitch control module* 20
8 Cooler
15
6 Left rear seat 30
9
Interface for specia l func-
5
tions 7 Right rear seat
30
8 Trailer hitch contro l module*
20
10 Cell phone
adapter, Blue-
5
tooth handset
9 T ra iler hitch control modu le* 15
11 AEM control modu le 15 10
Right rear
seat (pneumatics) 7,5
12 Selector lever 10
Fuse pan el® (bro wn)
13 Ambient lighting
10 No. Equipment Amps
14 Rear exterior lighting 20
15 Fuel
pump
25 1 Start-Stop-System,
Radio re-
30
ceiver/sound amplifier
16 Electromechanical parking
30
brake 2 Sound amplifie
r 30
Start-Stop-System, Rear
3 Seat
Entertainment, radio 7,5
receiver/sound amplifier
5 Automatic dimming interior
5
rearview mirror
6 DVD changer 5

@ Tips
Check carefully to make sure the hook-up
is secure before moving the car up the flat­
bed truck ramp .
Vehicle transport
Whenever you hov e your vehicle transported,
be sure to note the following :
(D Note
Mount the tie-down chains/cables over the
running surface (circumference) of the
tires. Never secure the vehicle by the axle,
the suspension struts or the front or rear
towline eye . For technical reasons, the
pressure in the suspension struts may
change du ring the transport and this will
adve rsely affect vehicle handling.
Lifting vehicle
Lifting with workshop hoist and with
floor jack
The vehicle may onl y be li~ed at the lif ting
points illu stra ted.
Fi g. 2 40 Front l ift ing po int
Fig. 2 41 Rea r lifti ng poin t
• Read and heed WARNING Q ,&. .
Emergenc y situ ation s 287
• Activate the vehicle jack mode in the MMI :
!CAR I function button > Ca r system s control
button>
Ser vici ng & ch ecks > Air su sp. :
jack mo de > On .
• Locate lifting poin ts Q fig . 240 and
¢ fig . 241 .
• Adjust lifting arms of wo rkshop hoist o r
floor jack to match veh icle lifting points.
• Insert a rubber pad be tween the floo r jack/
workshop hoist and the lift ing po ints .
The vehicle jack mode must be activated so
that the automat ic adjustment of the Adap­
tive Ai r Suspens ion does not make it more dif­
fic ult to raise the vehicle with the floor ja ck.
If you mu st l ift your vehicle with a fl oor jack
t o wo rk underneath , be sure the vehi cle i s
s af ely s upported on stand s intended for thi s
purpose.
Front lifting point
The lifting point is located on the floor pan re­
i nforcement about at the same leve l as the
jac k mounting point
c:> fig . 240 . Do not lift
t h e v ehi cle at the verti cal sill reinf orcement .
Rear lifting point
The lifting point is located o n the vert ical rein ­
forcement of the lower sill for the on-board
jack ¢
fig. 241 .
Lifting with vehicle jack
Refer to ¢ page 275.
&_ WARNING ,-~
-To reduce the risk of serious injury and
vehicle damage .
- Always lift the vehicle only at the spe­
c ia l workshop ho ist and floor jack lift
points illustrated
c:> fig . 240 and
c:> fig. 241 .
- Failure to lift the vehicle at these
po ints could cause the vehicle to tilt or
fall from a lift if there is a change in ve­
hicle weight distribution and balance .
This might happen, for example, when h eavy components such as the eng ine
block or transmission are removed.

29 0 Techni cal Dat a
Gross Ax le Weight R atin g
The Gross Axle Weight Rating is the maximum
l oad that can be applied at each axle of the
vehicle
c::> &. .
Vehicle capacity weight
The vehicle capac ity we ight (max. load) is list­
ed eithe r on the dr iver's side B-pillar or inside
the fuel filler flap.
A WARNING
- The actual Gross Axle Weight Rat ing at
the front and rear axles should not ex­
ceed the perm iss ible weights, and their
combination must not exceed the Gross
Vehicle Weight Rat ing.
Dimensions
I>
Leng th in (mm)
Width in (mm)
Width (across mir rors) in (mm)
He ight (unloaded)a) in (mm)
T urning circle diameter
ft (m)
-
- Exceeding permissible weight ratings can
result in veh icle damage, acc idents and
personal injury.
(D Note
- The vehicle capacity weight figures apply
when the load is distributed evenly in the
vehicle (passengers and luggage). When
transport ing a heavy load in the luggage
compartment, carry the load as near to
the rear axle as poss ible so that the vehi­
cle's handling is not impaired.
- Do not exceed the maximum permissible
axle loads or the maximum gross veh icle
we ight. Always remember that the vehi­
cle's handling w il l be affected by the ex­
tra load. Therefo re, adj ust your speed ac­
cordingly.
- Always observe local regulat ions.
AS SS ASL
202.4 (5137) 202.2 (5136) 207.52 (5267)
76 .7 (1949) 76 .7 (1949) 76 .7 (1949)
83.17 (2111) 83.17 (2111) 83.17 (2111)
57 .52 (1460) 57 .4 (1458) 57.96 (1471)
40.35 (12.3) 40.35 (12 .3) 41.67 (12 .7)
a) The he ight of the vehicle depends on the tires and the suspension.
When driving up steep ramps, on rough roads,
over curbs, etc . it is important to remember
that some parts of your ve hicle, such as spoil-
Capacities
Fuel tank: total capacity
Windsh ield and headlight* washer fluid container ers
or exhaust system components, may be
close to the ground. Be carefu l not to damage
them.
gal ( liters)
approx. 23.8 (90.0)
quarts (liters) approx. 5.29 (5.0)

300 Index
Defrosting (windows) ......... .. .... .. 81
Deluxe automatic climate control . . . . . . . 80
Determining co rrect load limit ... ..... 257
D iese l fue l ..... ........... .... .... . 223
Diesel particulate filter . . . . . . . . . . 21,208
Digita l compass ............ ... .... .. 56
Dimensions .... ............. .. .... . 290
Dimming the rearview mirror .. .. ...... 56
Disp lays
C leaning ... ................ ..... . 218
Distance
. ... .......... ...... ... .. .. 25
Door/rear lid warning . . . . . . . . . . . . . . . . .
24
Doors
Mechanical child safety lock . ..... .. .. 41
Power child safety lock ........ .... . . 41
Driver information system
CD/radio display . . . . . . . . . . . . . . . . . . . . 24
Door/rear lid warning . . . . . . . . . . . . . . . 24
Efficiency program . . . . . . . . . . . . . . . . . . 26
Exterior temperature display ..... .. .. 24
On-board computer . . . . . . . . . . . . . . . . . 25
Driver seating position
drive select
adaptive air suspension/sport ... .. .. .
Ad . d
apt,ve ampers ......... ... .. .. .
Curve light . ... . ...... ... .. .. .. .. .
D . t . ynam,c s eering ....... .. .. .. .. .. .
Eng ine sound ............ .. .. .. .. .
Safety belt tensioner ....... ... .... .
Sport differential .......... ... .... .
Drive select .. ... .. ..... ... .. .. .. .. .
Driving safely .. ........... .. .. .... . 136
110
110
110
110
110
110
110
110
135
Driving through water ........ .. .. .. . 209
Driving time . . . . . . . . . . . . . . . . . . . . . . . . 25
Duplicate key . . . . . . . . . . . . . . . . . . . . . . . 31
Dust filter
refer to Pol lutant filter (automatic A/C
system) .... ................ ..... .. 79
Dynamic steering . . . . . . . . . . . . . . . 22, 110
E
Easy entry feature ............ .. .... .. 83
EDL
refer to E lectronic differentia l lock ... . 199 Efficiency
program . . . . . . . . . . . . . . . . . . . 26
Fuel economy messages . . . . . . . . . . . . . 26
Other equ ipment ................. .. 26
E lectr ica l accessories (sockets) . . . . . 68, 74
Electromechanical parking brake Emergency braking ............... .. 88
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 86
Parking ... .. .. .. .. ........... .. .. . 87
Re leas ing and closing .............. . 86
Starting assist ... ............. .. .. . 87
Starting from rest ................ .. 87
Starting
off with a trailer ............. 88
Warning/indicator lights ........ ... .. 15
E lectronic differential lock .......... .. 199
Warning/ind icator lights ........ .... . 18
Electronic differential lock (EDL)
Warning/ind icator lights . ............ 19
E lectronic immobilizer . . . . . . . . . . . . 27, 32
E lectronic power control (EPC)
warning/indicator light . . . . . . . . . . . . . . 20
Electronic speed limiter ............. .. 30
E lectronic Stabilization Contro l (ESC) . .. 199
Warning/indicator lights ............ . 18
Emergency actuat ion
Doors ........ .. ............. ... .. 37
Luggage compartment lid .......... .. 40
Parking lock ..... ................ . 121
Power sunroof .................. .. . 44
Emergency brak ing . ... .......... .. .. . 88
Emergency flasher . ................ .. 47
Warning/ind icator lights ..... ... .. .. . 23
Emergency operation
Panoramic sunroof ............. .. .. . 45
Sun shade (roof) .............. .... . 4S
Emergency starting ................ . 283
Emergency towing ...... ........... . 285
Emergency warn ing triangle ...... .... 269
Energy management
Engine 204
Compartment .. .. ..... ........... . 233
Coolant ...... ... .. .............. . 239
Data ....... .. .. .. ........... .... 291
Start-Stop-System ............. .. .. . 88
starting ....... .. .. .............. .. 84
Starting with jumper cables ...... ... 283
St .
opping .. .... .. .. .............. .. 84