2014 AUDI S8 catalytic converter

Adjusting the disp lay and the warning
tones. . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Er ror messages . . . . . . . . . . . . . . . . . . 132
Trailer hitch . . . . . . . . . . . . . . . . . . . . . 132
Homelink . . . . . . . . . . . . . . . . . . . . . 133
Universal remote control ..... .. .. . .
Safety fir st ..... .... ... .. .. .. . .
Driving Safely ................ .
General notes ............ .. .. .. . .
Proper occupa nt seating positions . . .
Driver and passenger side footwell .. .
Pedal area .. ................. .. . .
Stowing luggage .......... ... .. . .
Report ing Safety Defects ... .. .. .. . .
Safety belt s ... .. ... ... .. .. .. . .
Gene ral notes ............ .... .. . .
Why s afety belts? ........ .... .. . .
Safety belts . ... .. .... ... .. .. ... .
Safety belt pretens ioners . ... .. .. . .
Airbag system ................ .
Important things to know . ... .. .. . .
F ront airbags ... ...... ... .. .. .. . .
Monitoring the Advanced Airbag
System ........................ .
Knee airbags ............. .... .. . .
Side airbags ................ .. .. .
Side curta in a irbags ........ ...... .
Child Safety ..... ..... ..... .. . .
Important th ings to know ...... .. . .
C hi ld safety seats ................ .
I nstall ing a chi ld safety seat .. .. .. . .
L A TC H L ower ancho rages and tethe rs
for chi ld ren . ............. .... .. . .
Addit ional Information
Audi pre sense ........ .. .. .. . .
Preventat ive passenger p rotec tion 133
135
135
135
136
140
140
141
1 4 3
145
1 4 5
146
1 48
15 1
153 153
157
164
168 171
174
177
177
183
187
190 196
197 19 7
Vehi cle operation . . . . . . . . . . . . . 199
Intelligent technology .. .. .. .. 199
Notice about data recorded by vehicle
control modules . . . . . . . . . . . . . . . . . . 199
Electronic Stabilization Control (ESC) . 199
Table of contents 3
Bra ki ng . . . . . . . . . . . . . . . . . . . . . . . . . 201
Servotronic -advanced power steering
system . . . . . . . . . . . . . . . . . . . . . . . . . 203
Driving with your quattro . . . . . . . . . . 204
Energy management . . . . . . . . . . . . . . 204
Driving and environment .... .
The first 1,000 miles (1,500 km) and
afterwards .. .. .... ..... ..... ... .
Catalytic converter .. . .. .... ...... .
D iesel pa rticulate filter ........... .
S h utting down veh icle ............ .
Avoid damaging the vehicle ........ .
Driving throug h water on ro ads .... .
Operate your vehicle economically and
minimize poll ution . .. .. .. ..... ... .
Trailer towing ... . .. .. ..... ... .
Driving with a trailer . .. ..... ... .. .
Trai ler towing tips
Vehicle care ..... . .. .. ..... ... .
Vehicle care and cleaning .. .. .
General information ............. .
Car washes .. .. .. .. ............. .
Cleaning and care information ..... .
Fuel supply and filling your
fuel tank ... .. .. ... ............ .
Gasoline ........ .. ............. .
Diesel fuel ....... .............. .
Fuel tank .. ... .... .............. .
Se lective ca ta lytic reduction ....... .
Checking and filling .......... .
Engine hood . .. .. ............... .
E ngine compartment ............. .
Engine o il ... .. .. .. ............. .
Engine cooling system .. ..... ... .. .
Brake fluid . ... .. .. . ... ...... ... .
Battery ... .. .. .. .. . .. ... .... ... .
Windsh ie ld/headlight washer 207
207
208
208
2
09
209
2 09
209
212
212
214
2 16
216
216
216
217
222
222
223
224
2 27
231
2 31
2 33
2 34
239
242
243
container . . . . . . . . . . . . . . . . . . . . . . . 247
Tires and wheels . . . . . . . . . . . . . . 248
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Tire pressure monitoring system . . . . 266
•
•

208 Driving and en vir onm ent
Catalytic converter
Appl ies to vehicles: with gasoline e ngin e
It is very important that your emission con­
trol system (catalytic converter) is function­
ing properly to ensure that your vehicle is run­
ning in an environmentally sound manner .
.. Always use lead-free gasoline i=> page 222,
Fuel supply .
.. Never run the tank down all the way to emp-
ty .
.. Never put too much motor oil in your engine
¢ page 23 7, Adding engine oil .. Never try to push- or tow-start your veh icle.
The catalytic converter is an eff ic ient "clean­
up" device built into the exhaust system of
the vehicle. The catalyti c converter burns
many of the pollutants in the exhaust gas be­
fore they are released into the atmosphere.
The exclus ive use of unleaded fuel is cr itically
important for the l ife of the cata lytic convert­
e r and proper functioning of the engine.
A WARNING
T he temperature of the exhaust system is
high, both when driving and after stopping
the engine .
- Never touch the exhaust tail pipes once
they have become hot. This could result
in burns.
- Do not park or operate the vehicle in
areas where the hot exhaust system may
come in contact with dry grass, brush,
fuel spill or other material which can
cause a fire.
- Do not apply additional undercoating or
rustproofing on or near the exhaust
man ifold, exhaust p ipes, catalytic con­
verter or heat shields . During driving, the
substance used for undercoating cou ld
overheat and cause a fire.
@) Note
- Be aware that just one tank f illing with
leaded fuel will already seriously de­
grade the performance of the cata lytic
conve rter. -
Do not exceed the correct engine oil level
i=>page 237.
-Do not drive until the fue l tank becomes
completely empty . The engine co uld mis­
fire . Unburned fuel could also get into
the exhaust system and this cou ld cause
the catalytic converter to overheat.
- Do not switch off the ignition while the
vehicle is mov ing.
- Do not continue to operate your vehicle
under these conditions, as otherwise fuel
can reach the catalyt ic converter. Th is
cou ld result in overheating of the con­
verter, requir ing its replacement .
- To assure efficient operation of the Emis­
sion Control System:
- Have you r vehicle maintained p roperly
and in accordance w ith the service rec­
ommendations in your Warranty & Maintenance book let.
- Lack of prope r maintenance as we ll as
improper use of the vehicle wi ll impair
the function of the em ission contro l
system and could lead to damage.
@) For the sa ke of the en vironment
Even when the Emission Control System is
ope rat ing properly, the exhaust gas can
have a sulfur-like exhaust gas smell under
some operat ing states. This depends on
the sulfur content of the fuel being used .
Using a different brand of fuel may help,
or f illing the tank with lead-free super
grade gasoline.
Diesel particulate filter
Applies to vehicles: with diese l eng ine
The diesel part icu late filter filters nearly all of
the soot pa rticles out of the exhaust . T he fil­
ter cleans itself automat ica lly unde r no rma l
dr iv ing cond itions . If the filte r cannot clean it­
self (for example, because you are on ly driving
short distances), the filter becomes clogged
with soot and the
II symbol for the diesel
particulate filter i lluminates
i=> page 21. ..,.

Fuel filler flap emergency release
You can open the fuel filler flap by hand if the
power locking system should fail.
Fig . 192 Veh icles w it h select ive catalytic reduct ion :
R ig ht side trim pane l
Fig . 1 93 Right side trim pa ne l in the lu ggage compart ­
ment: emergency release mechan ism
The emergency release mechanism is located
behind the right side trim pa ne l in the lug­
gage compartmen t. In vehicles with se lec tive
catalyt ic red uction *, remove the ve nt gri lle
first:
• Press b oth tabs @
r:::;, fig. 192 and ti lt the
ven t grille downward . You can then remove
t h e g rille upwa rd .
• Loosen the loop
r:::;, fig. 193 from the retainer
and then pull on the loop carefully
r:::;, (D ,
• Press on the left s ide of the fuel filler door
to open
r:::;, page 225, fig . 190.
(D Note
O nl y pull on the loop until you feel resist­
ance. You will not hear it release. Other­
w ise you cou ld damage t he emergency re­
lease mechanism .
Fuel suppl y and filli ng your fuel t ank 22 7
Selective catalytic
reduction
General information
Applies to vehicles: wi th diesel engine
On vehicles with se lective cata lytic reduction,
an urea solution (AdB lue) is injected into the
exhaust system before a n itrogen oxide cata­
lytic converter to reduce nitrogen emissions.
The Ad Blue is stored in a separate tank in t he
vehicle. The Ad Blue usage accounts for ap­
proximately 0.5% to 1.2% of the d iesel fue l
that is used.
You must refill the Ad Blue or have it refi lled
by your aut horized Audi dea ler or qua lified
workshop as soon as the Ad Blue refill mes­
sage appears in the instrument cluster
c;, page 229.
A WARNING
Failure to heed AdBlue refill information in
the instrument clus ter can prevent the ve­
hicl e from be ing started and dr iven. If the
vehi cle can not be driven and an emergen cy
ar ises, pe rsonal inju ry c an o ccu r.
- Always have the Ad Blue tank refi lled we ll
befo re the tank runs dry.
(i'} Tips
- Th e instr ument cluster d isplay ind icates
t he distance remain ing that can be d riv­
en
r:::;, page 228. I f th e A d Bl ue tank is
c omple tely empty, t he eng ine will not
sta rt ag ain afte r th e ig niti on is swit ched
off.
-Ad Blue is requi red by law t o opera te th is
vehicle.

298 Index
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 80
Setup ..... ................ ..... .. 82
Automatic climate control system
synchron izing .......... .. .. .. .. .. .. 81
Automatic transmission . .. .. .. .. .. .. . 116
Automatic transmission (tiptronic) Emergency mode . . . . . . . . . . . . . . . . . . 120
Kick -down . . . . . . . . . . . . . . . . . . . . . . . . 119
Manual shifting .......... .. .. .. .. . 119
Parking lock emergency release . .. .. . 121
Selector lever positions . . . . . . . . . . . . . 116
Automatic wipers .................. .. S3
Auto Safety Hotline . . . . . . . . . . . . . . . . . 143
Average consumption ........... .. .. .. 25
Average speed . . . . . . . . . . . . . . . . . . . . . . . 25
Avoid damaging the vehicle ...... .. .. . 209
B
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Charging . .. ................ ... .. . 245
I mportant warnings .......... .. .. . 243
L ocat ion . . . . . . . . . . . . . . . . . . . . . . . . . 243
low ... .. .. .. . .......... .. .. .. .. . 204
Replacing the battery . . . . . . . . . . . . . . 246
State of charge ............ ... .... . 204
Winter operation .......... ... .... . 243
Working on the battery .... .. .. .. .. . 243
Before driving ........... .. .. .. .. .. . 135
Blended gasoline . ...... ... .... .. .. . 222
Blower (automatic climate control) . ... .. 81
Booster seats .............. ... .. ... 185
Brake fluid Changing the brake fluid ... .. .. .. .. . 242
Check ing the brake fluid level ... .. .. . 242
What is the correct brake fluid level? .. 242
What should I do if the brake fluid warn-
ing light comes on? ..... .. .. .. .. .. . 242
Brake system Anti-lock braking system ... .. .. .. .. . . 19
Brake assist system ......... .. .. ... 199
Brake booster . .. ...... .... ... .. .. . 203
Brake fluid .............. .... ..... 242
Brake fluid spec ificat ions for refill and re­
p la cement . . . . . . . . . . . . . . . . . . . . . . . 242
Brake light defective ....... ... .... . . 22
Brake pads ............... ... .... . 207
Electromechanica l parking brake .. .. . . 86 Fluid
reservoir ... ................ . 242
How does moisture or road salt affect the
brakes? .......................... 201
Warning/indicator lights ........ .... . 14
Worn brake pads symbol . . . . . . . . . . . . . 20
braking guard Messages ..... .. ............. .... 101
Braking guard . .. .. ... .......... .. .. . 94
Settings .. .... ............... .... 101
Break-in period .. .. ... .......... .. .. 207
Brake pads .. .. .. .......... ... .. .. 207
Tires ...... ... .. .. ........ ... .. .. 207
Bul bs .. .... .... ................... 282
C
California Proposition 65 Warning ..... 232
Battery specific . . . . . . . . . . . . . . . . . . . 24S
Capacities .. .. .. . .............. .. .. 290
Engine oil ..... .. ... .......... .. .. 234
Carbon parts Cleaning . . . . . . . . . . . . . . . . . . . . 218,219
Car carrier Transporting your vehicle ....... .... 287
Care ... .... .... ............... .... 216
Cargo area
refer to Luggage compartment . .. .. .. 141
Catalytic converter . ................. 208
Center armrest
Cockpit ........................... 61
Rear ............................. 68
Central locking .. .. ... ........... ... . 33
Emergency locking .. ........... .... . 37
Certification .. .. .. ............. .. .. 29S
Changing a wheel .. ............. .... 272
Chang ing engine oil ....... ...... .. .. 238
Checking Engine coolant level . ........... .. .. 240
Tire pressure .................... .. 254
Child restraints Danger of using child restraints in the
front seat . ................... .... 15S
Where can I get additional information
about child restraints and their use? .. 196
Child restraint system anchors ..... ... 190