Catalytic converter
Applies to vehicles: with gasoline engine
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 c::> page 218,
Fuel supply .
... Never run the tank down all the way to emp
ty .
... Never put too much motor oil in your engine
c::> page 232, Adding engine oil
The catalytic converter is an eff icient "clean
up" device built into the exhaust system of
the vehicle. The catalytic converter burns
many of the pollutants in the exhaust gas be
fore they are released into the atmosphere.
The exclusive use of unleaded fuel is cr it ically
i mportant for the life of the cata lytic convert
e r and proper functioning of the engine.
& WARNING ,~
T he temperature of the exhaust system is
high, both when driving and after stopping
the engine .
- Never touch the exha ust 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
manifold, exhaust p ipes, catalytic con
verter or heat shields . During driving, the
substance used for undercoating cou ld
overheat and cause a fire.
(D Note
- Be aware that just one tank f illing with
leaded fuel will already seriously de-
grade the performance of the catalytic
conve rter.
Dri vin g and en vironm ent 205
-Do not exceed the correct engine oil level
c::>page 232.
-Do not drive until the fue l tank becomes
completely empty. The engine cou ld 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 veh icle
under these conditions, as otherwise fuel
can reach the catalyt ic converter. Th is
cou ld result i n overheating of the con
verter, requir ing its replacement.
- To assure efficient operation of the Emis
sion Control System:
- Have you r vehicle main tained properly
and in accordance w ith the se rv ice rec
ommendations in your Warranty & Maintenance book let.
- Lack of proper maintenance as we ll as
improper use of t he vehicle wi ll impair
the function of the emission cont ro l
system and could lead to damage.
@) For the sake of the env ironment
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 filling the tank with lead-free s uper
g rade gasoline.
Diesel particulate filter
App lies to vehicles: wit h diese l eng ine
The diesel part iculate filter filters nearly all of
the soot pa rticles out of the exhaust . T he fil
te r clea ns itself automat ica lly unde r no rma l
driv ing cond itions. If the filter cannot clean it
self (for example, because you are on ly driving
sho rt distances), the filter becomes clogged
with soot and the
Ill symbo l for the diesel
particulate filter i lluminates
c::> page 22. ..,_
•
•
228 Check ing and filling
- Always disconnect the battery.
- Never smoke or wor k near heaters or
open flames . Fluids in the engine com
partment could start a fire.
- Keep an approved fire extinguisher im
mediately available.
- To avoid electrical shock and persona l in
jury while the engine is running or being started, never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repa ir
with the engine running:
- Fi rst, fully apply the parking brake,
move se lec tor lever to P (Pa rk) .
- Always use extreme caution to prevent
clot hing, jewe lry, or long ha ir from ge t
ting caught in the radiator fan, V -belts
or other moving parts, or from contact ing hot parts . Tie back hair before
start ing, and do not wear cloth ing that
will hang or droop into the eng ine .
- Minimize exposure to emission and chemica l ha zards¢ ,&..
A WARNING
California Propos ition 65 Warning:
- Engine exhaust, some of its constituents,
and certa in veh icle components conta in
or emit chemicals known to the State of
Califor nia to cause cancer and b irth de
fects a nd reproduct ive ha rm. In addition ,
certain fluids conta ined in vehicles and
certa in prod ucts of co mponent wear co n
ta in or emi t chemicals known to the
State o f Ca lifornia to cause can cer and
birth defects or other reproductive harm . -
Battery posts, terminals and re lated ac
cessories conta in lead and lead com
pounds, chemicals known to the State of
California to cause cancer and reproduc
tive harms. Wash hands after handling .
(D Note
When adding flu ids, always make sure that
they are poured into the proper conta iner
or f iller opening, otherwise serious dam
age to vehicle systems w ill occur.
® For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly. If
you see spots from oil or other ve hicle flu
i ds, have yo ur vehicle inspected by a n au
thori zed Audi dea le r.
Closing the engine hood
.,. Pull the hood down un til the pressure from
the struts is reduced.
.,. Let the hood
drop down and latch in p lace .
Do not try to push it shut; it may fail to en
gage ¢&_ .
A WARNING
-
A hood that is not completely latched
could fly up and b lock your view while dr iv
ing .
-When you close the engine hood, check it
to make sure the safety catch has p roper
ly engaged. The hood sho uld be flush
with the surrou nding vehicle body pa rts.
- If you notice while driv ing that the hood
is not s ecured prope rly, stop at onc e and
close it.
232 Checking and filling
(D Note
Driving with an insufficient oi l level is like
ly to ca use seve re damage to the eng ine.
@ Tips
- The oil pressure warning display. i s
not an indicator of the oil level. Do not
r ely on it. Instead , check the oil level in
your engine at regular intervals, pref
erably each t ime you refuel, and always
before going on a long trip .
-If you have the impression your engine
consumes excessive amo unts of oi l, we
recommend that yo u consult your Audi
dealer to have the ca use of you r co nce rn
prope rly diagnosed. Keep in mind that
t h e accurate measure men t of oil con
s u mp tion requires gre at ca re and may
ta ke some time. Your Audi dealer h as in
str uctions about how to measure oil con
sumption accurate ly .
Checking the engine oil level
Fig . 194 Di splay: o il leve l in dicato r
... Pa rk your vehi cle on a leve l surfac e.
... Shu t the engine off when i t is wa rm.
... Swi tch on ly th e igni tion ba ck on.
... Wa it approxima tely two mi nutes .
... Se lect : ICAR !funct io n button>
(Car)* sy s
tems
control button > Se rvicing & checks >
O il level.
... Check the oil leve l in t he display¢ fig. 194 .
Add engi ne oil if the bar of the oil level indi
cator is n ear "m in"
¢ page 232.
Depending on the way the vehicle is driven
a nd the operating conditions, oil consumpt ion can be u
p to 1/2 quart pe r 60 0 miles (0.5 liter
per 1,000 km) . Con sumption may be hig he r
within the first 3,000 miles (5,000 km) .
(D Tips
The oil level indicator in t he MM I Disp lay is
o nl y an information display . If t he oil level
i s lo w, a min imum oil warn ing appears in
the instr ument cluster. Add oil
¢
page 232 . If the hood has been opened ,
the cur ren t oil leve l is s hown in the instru
m ent cluste r th e next t ime the ignit ion is
sw itc hed on.
Adding engine oil 'l:::7:
Fi g. 195 Eng in e compa rtm en t: cove r on t he e ng in e o il
fille r neck
B efo re y ou chec k anyt hing in the engine com
par tmen t,
always read and heed all WARN
INGS
¢ .&. in Working in the engine com part
ment on page 22
7 .
... Shu t the eng ine off .
... Uns crew the cap
"I".:::?-to the eng ine o il filling
hole
¢ fig . 195, ¢page 229, fig . 193 .
... Carefully top off with 0 . 5 quarts (0 .5 liters)
of the appropr iate oil
¢ page 229 .
... Check the oi l level again after two min utes
¢ page 232, Checking the engine oil level.
... Top off the o il aga in, if necessary .
... Screw the cap back on the fi lling hol e .
.&_ WARNING
=
- W hile toppi ng off, t he o il mu st not come
i n cont act wit h hot engi ne part s - fire
h aza rd !
234 Check ing and filling
@ For the sake of the environment
- Before changing your oil , first make sure
you know where you can properly dispose
of the used o il.
- Always dispose of used engine oil proper
l y. Do not dump it on garden soi l, wood
ed areas, into open streams or down
sewage dra ins.
- Recycle used engine oil by taking it to a
used engine oil collection facility in your
area, or contact a service station .
Engine cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro tects the engine from freezing in the winter.
The cooling system is sea led and generally re
q uir es little attention .
The cooling system has been filled at the fac
tory with a pe rmanent coolant which does not
need to be c hanged. The coolant consists of a
mixture of spec ia lly conditioned water and the
manufacturer 's glyco l-b ased coo lant add i-
tive G l3 antifreeze with ant icorrosion addi
tives (50% for USA models ; 60% for Canadian
mod els). This mixture both assures the nec es
sary frost protection and protects metal com ponents in the engine's cooling sys tem from
corrosion and scaling . It a lso raises the boil
ing point of the coolant .
Do not red uce the concentration o f the coo l
ant in the summer by adding plain water.
The
proportion of coolant add itive mu st be at
l e a st 50 % but not more than 60 %
to main
tain antifreez e protection and cooling efficien
cy . If the coolant frost prote ct ion is too low,
the coo lant cou ld freeze and damage the veh i
cle hea ting and eng ine cooling system.
For yea r-round d riving, antifreeze is added at
the fac to ry for temperatures down to:
-- 31°F( -35°C)USA
- -40 °F ( -40 °C) Canada. If
you must add coolant, use a mixture o f wa
ter and coolant additive . Mixing the coo lant
additive with distilled water is recommended.
A WARNING
-
Before you c heck anything in the engine
compartment, always read and heed a ll
WAR NINGS
c::, & in Working in the engine
compartment on page 22
7 .
(D Note
- Before winter sets in, have the coo lant
checked to see if the coolant additive in
your vehicle is sufficient to meet the cli mate conditions . This is especia lly impor
tan t if you live in a reg io n where the win
t er is ex treme ly cold. If ne cessa ry, i n
crease the pr opo rtion of coo lant add itive
t o 60%.
- Whe n adding coolant additive to yo ur
c oolin g sys tem, remembe r:
- We recommend using on ly coolant ad
d itive Gl2++ or Gl3 (check the label)
for your vehicle . This coolant additive is
ava ila ble at autho rized Aud i deale rs.
Other types of antifreeze ca n sig nifi
ca ntly reduce co rr os io n protection. The
r es ult ing co rrosion c an c ause a los s o f
coolant and serious engine damage.
- Do not add any type of rad iator leak seal
a n t to y our vehicle 's engine coolant.
Add ing radiator repai r fl uid may adverse
ly affect the function and performance of
your cooling system and co uld resu lt in
damage not covered by yo ur New Vehicle
Limited Warranty.
-
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance .
Fig. 196 Eng ine compartment: cover on the coolant
expansion tank
Before you check anything in the engine com
partment,
alwa ys read and hee d all W ARN
ING S ¢.&. in Working in the engine compart
ment on page 22
7 .
.,. Park your vehicle on a level surface.
.,. Switch off the ignit ion.
.,. Read the engine coolant level from the cool
ant expansion tank¢
fig. 196, ¢ page 229 ,
fig. 193 .
With a cold engine, the coolant
level should be between the "min" and
"max" mar kings. When the engine is warm,
the leve l may be slightly above the "max"
marking.
The location of the coolant expansion tank
can be seen in the engine compartment illus
tration¢
page 229 .
To obtain an accurate read ing, the eng ine
must be switched off.
The expans ion tank in you r vehicle is equipped
with an electric coolant level sensor .
When the coolant level is too low, the warning
light in the Auto -Check System ¢
page 17 will
illum inate u ntil you add coolant a nd the level
has been restored to normal. Even though
there is an electric coolant level sensor, we
still recommend you check the coolan t leve l
from time to time.
Coolant loss
Coolant loss may indicate a leak in the cool ing
system. In the event of coolant loss, the cool-
Checkin g and fillin g 235
ing system should be inspected immediately
by your authorized Audi dealer . It is not
enough merely to add coolant.
In a
s ea led system, losses can occur on ly if
the boiling point of the coo lant is exceeded as
a result of overheating.
A WARNING
The cooling system is under pressure and
can get very hot. Reduce the risk of scald
ing from hot coolant by follow ing these
steps.
- Turn off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escap ing f lu id and steam by cover ing the
cap with a la rge, th ick rag.
- Turn the cap slowly and very carefully in
a counter-clockwise d irect ion while ap
plyi ng light, downward pressure on the
top of the cap .
- To avo id being burned, do not sp ill anti
freeze or coolant on the exhaust system
or hot engine parts. Under certa in cond i
tions, the ethylene gly col in engine coo l
a nt can catch fire.
(D Note
Do not add any type of radiator leak sea L
ant to your veh icle's engine coo lant . Add
i ng radiato r repa ir flui d may adverse ly af
fect the funct io n and performa nce o f your
cooling system and could result in damage
not covered by your New Vehicle Limited
War ranty.
Adding coolant
Be very careful when adding engine coolant .
Before you che ck anyth ing in the eng ine com
partmen t,
alway s read and heed all WARN
INGS ¢.&_ in Working in the engine compart
ment on page
227 .
.,. Tur n off the engi ne.
.,. Let the engine cool down.
29 0 Index
A
Accessories . ...... ..... ... .. .. .... . 28 7
Active lane ass ist ... ... .. .. .. .. .. .. .. 95
Activating and deactivating . . . . . . . . . . . 96
C leaning the camera area .. .. .. .. .. . 214
Descr ipt ion ... ........... .. .. .... .. 95
I nstrument cluster indicator light . . . . . 96
Messages . . . . . . . . . . . . . . . . . . . . . . . . . 96
Notes on instrument cluster display . . . . 96
Setting the steering wheel vibrat ion . . . . 97
AC (automatic cl imate control) . .. .. .. .. 72
AC (climate control) . . . . . . . . . . . . . . . . . . 70
Adaptive air suspension/sport . ... .. .. . 102
Adapt ive cruise control . . . . . . . . . . . . . . . . 86
C leaning the senso r ....... .. .. .... . 214
Messages ............... .. .. .. .. .. 93
Request for driver intervention . . . . . . . . 91
Stop-and-go traffic . . . . . . . . . . . . . . . . . 90
Adapt ive Lig ht (defective) ... .. .. .... .. 23
AdBlue .. .. .. .. . .......... .. .. .... . 223
F illing . .. .. ............... .. .... . 225
Messages in the instrument cluster dis-
play ... .. .. ... .... .... .. .. .. .. .. . 224
Adding Eng ine coolant ........... .. .. .. .. . 235
Eng ine oil ................. .. .... . 232
W indshield washer fluid . ...... .. .. . 241
Additives Eng ine oi l ............... .. .. .... . 232
Adj usting
A ir dist ribution (au tomatic climate con-
trol) .. ... ... .. .. ..... ... .. .. .... .. 73
ai r distribution (climate control) ... .. . . 70
Front seats . . . . . . . . . . . . . . . . . . . . . . . . 53
Instrument illum inat ion ..... .. .... .. 47
Steer ing column e lectrically .. .. .... .. 75
Steer ing column manually ... .. .. .. . . 75
Temperature (automat ic climate co ntrol) 73
Temperature (climate control) .... .. .. 70
A irbag system . . . . . . . . . . . . . . . . . 149, 170
Advanced Airbag System ... .. .. .... . 153
Advanced Airbag System components . 157
Care ..... .. ................ ... ... 165
C hi ldren ... ... .... ...... .. .. .. .. . 177
C hil d restra ints ........... .. .. .. .. . 177
Componen ts (front airbags) .. .. .. .. . 157 Danger of fitting a ch
ild seat on the front
passenger seat ... .. ... ..... ... .. .. 151
Disposa l .. .. .. .. ... .. ..... ... .. .. 165
Front a irbags . . . . . . . . . . . . . . . . 153, 155
How do the front airbags work? .. .... 159
How many a irbags does my vehicle
have? ...... .. .. .. ... ... ... .. .. .. 157
How the Advanced Airbag System com-
ponents work togethe r ......... .. .. 159
Important safe ty instru ct ions on the
knee airbag system .. .. ..... ... .. .. 168
Important things to know .. ... ... . .. 149
Knee airbags ..... .. ... ..... ... .. .. 166
Monitoring .... .. ............. .... 161
PASSENGER AIR BAG OFF light ... .... 162
Repairs ... .... .. ............. .... 165
Safety instructions ................. 164
S ide a irbags ... .. ... .. .. ... ..... .. 169
S ide curtain airbags ... ...... ... .. .. 172
Warning/ind icator lights ........ .. .. . 19
Warning/Indicato r lights ....... .. .. 161
When must the system be inspected? 161
Aircraft Transporting your vehicle
Alcantara 280
Cleaning .. .... .. ............. .... 216
All -wheel drive .... .. ... ..... ... .. .. 201
Winter tires ..... ... .. ..... ... .. .. 258
Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Amb ience lighting .............. .... . 47
Anti-freeze
refer to Engine coolant . ..... ... .. .. 234
Anti- lock b rak ing system ............ . 196
Wa rning/ind icator lights . . . . . . . . . 19, 20
Anti-slip regulation ............. .. .. 196
Warning/ind icator lights .. ... ..... .. . 19
Anti-theft systems Electronic immobi lizer .. ..... ... .. .. . 33
Asht ray .... .... ................... . 59
Audi braking guard
refer to brak ing guard ............. .. 86
Audi drive select
refer to drive select ............ .... 102
A udi Serv ice Repair Manuals and Litera-
tu re ... .. .. .. .. .. .. .... . ..... ... .. 285
29 4 Index
Start -Stop -System . . . . . . . . . . . . . . . . . . 81
starting .... ... . ...... ... .. .. .... .. 76
Starting with jumper cab les .. .. .. .. . 276
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . 77
E ng ine compartmen t ... .... .. .. .... . 229
C losing the hood . ..... ... .. .. .... . 228
Opening the hood ..... ... .. .. .... . 227
Safety instructions ..... ... .. .. .... . 227
Working in the engine compartment . . 227
E ng ine coolan t ... .. ... .... .. .. .. .. . 234
Adding coolant . .. ..... ... .. .. .... . 235
Checking the engine coolant leve l .. .. . 235
Expansion tank . .. ..... ... .. .. .... . 235
M alfunct ion symbo l . . . . . . . . . . . . . . . . . 17
Radi ator f an .... ... .. ...... .. .. .. . 236
T emperature gauge ........ .... ..... 11
Eng ine oil ... ... .. ..... ... .. .. .... . 229
Adding .... ... . ...... ... .. .. .... . 232
Addit ives . .... .... .... ....... .. .. . 232
Ch ang ing .. .... .. ... .. .. .. .. .. ... 233
Check ing the eng ine o il level .. .. .... . 232
Ind ications and cond it ions req uiring ex -
tra checking .................. .... 232
I nd icator light . . . . . . . . . . . . . . . . . . . . . 18
O il cons umption . .. ... .... .. .. .. .. . 23 1
O il grades .... .... .... ... .... .. .. . 229
P ressu re mal function . ... .. .. ... ... .. 18
Recomm ended oil check int ervals . ... . 232
Sensor def ective . . . . . . . . . . . . . . . . . . . . 22
Specification and viscos ity .. .. .. .... . 229
E ng ine sound ...... ....... .. .. .. .. . 102
Eng ine speed limitat ion ...... ... .. .... 22
Engin e start-stop mode
refer to Start-Stop-System . .. .. .. .. . . 83
E ng ine start sys tem (ind icator lights) .. . . 18
E nv ironment
Break- in period .............. ... ... 204
Cata lytic conve rter ........... ... ... 205
Di ese l pa rticul ate fi lter .. .. .. .. .. .. . 205
Di sp osing of yo ur vehicle batte ry .. ... 24 1
D riving a t high speeds ... .. .. .. .... . 20 7
D riving to minimize pollu tion and noise 206
Fu el . .... .. ... .. ..... ... .. .. .... . 221
Fue l economy ... .. ... .... .. .. .. .. . 206
Leaks unde r your veh icle ..... .. .... . 227
Le tting the ve hicle stand and warm up . 207
Prope r disposal of dra ined brake flu id . 23 7 Proper disposal of d
rained eng ine cool -
ant . ... .. .... .. .. ... ..... ... .. .. 235
Proper d isposal of d rained eng ine
o il . . . . . . . . . . . . . . . . . . . . . . . . . 232, 233
Recycling used engine oil . ....... .... 232
U nleaded fuel .. .. ................ . 218
What s hould I do with an old battery? . 241
Event Data Recorde r (EDR) . . . . . . . . . . . . 196
E xhaus t tai l pipes
C leaning .. .. .. . .......... ... ... .. 214
Expansion tank .. .. .......... ...... . 235
Exterior lighting ... .. ... ..... ... .. .. . 44
E xte rior mi rrors
Adjus ting . .. .. .. .. .... .... ....... . SO
D imming . ..... .. .. ... ..... ... .. .. . 51
Heating ... .... .. ... .. ..... .... . .. . SO
E xterior tempera ture display ........... 24
F
Fastening
Booster seats . . . . . . . . . . . . . . . . . . . . . 184
Co nvertib le child safety seats ........ 182
I n fan t seats . .. .. ....... ...... .... 181
Floor mats .. .. .. .. ...... ....... .... 135
F oot peda ls ..... .. .. ... ..... ... .. .. 135
Fo r the sake of the environment
Gasoli ne fumes and the env ironme nt .. 221
Red ucing engine noise by early upshift-
i ng ....... .. .. .. .. ............... . 11
Ref ueling ..... .. ... .. ..... .... . .. 221
Saving f uel by early ups hifting ... .. .. . 11
Fo ur-zone automatic climate control . .. . 72
Front a irbags
Descrip tion .. .. . .. ........ ... ..... 153
How they work . .. .......... ...... . 159
Frontal col lisions and the laws of p hysics 141
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 53
Adjus ting . .. .. .. ........... .. .. .. 132
C hild rest rain ts in the front seat . ... .. 151
Fuel Additives ...... .. ..... ........... . 218
B lended gaso line ........ .... ...... 218
Cur rent co nsumption .... ....... .... . 25
E conomy messages (e fficiency p rogram) 2 7
Fuel fi lle r flap emergency release ... .. 223
Fuel fi ller neck ... .. .... .... ... .. .. 220
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12