Page 233 of 328

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The correct fuel type for your vehicle can be
found on a lab el located on the inside of the fue l
f ill er door . For ad dit ional information on fuel, re
fer to
c:> page 228.
The fuel tank capacity of your vehicle can be
found in the
T ec hnical Da ta c:> page 303 .
To avoid fuel spill ing or evaporating from the f uel
tank always close fuel filler cap properly and
comp letely. An improperly closed fue l filler cap
may a lso cause the MIL lamp
c:> page 26 to come
on.
A WARNING
Not paying attention when fueling or han
dling fuel incorrectly can lead to fires, exp lo
sions or serious in juries.
- Fuel ignites eas ily and can cause serious
burns and other injuries.
-
- If you do not switch the eng ine off when fu
eling and/or do not insert the fuel nozz le
completely into the tank opening, fuel can
leak out or run over . Leaked fuel can ignite
and sta rt a fi re .
- Do not use the telephone while fueling. The electromagnet ic rays can cause spa rks,
w hich can ignite fuel vapors and sta rt a fi re .
- Do not s it in you r vehicle while fueling . If
yo u must make an except io n and enter your
vehicle again wh ile fue ling , close the door
and touch met al to discharge static electri c
ity befo re touching the fue l nozzle. Static
elect ricity can create sparks, whic h can ig
nite vapors when f ue li ng.
- Do not smoke or have an open flame i n the
area when fueling your vehicle or filling a
fuel container because this increases the risk of an explos ion.
- For your safety, carrying f uel containers in
your vehicle is not recommended. Whether
full or empty, the conta iner can leak and
cause a fire in the event of an accident.
- If you must make an exception and trans port a fuel container, note the following:
- Never fill the fuel containe r with fuel
while it is in or on the vehicle. S tat ic elec
t ricity is d isc har ged when filling wh ich can
Ch eck ing and Filling
cause the fuel vapors to ignite and in
creases the risk of an exp losion.
- Always place a fue l container on t he
ground before fill ing .
- Always hold the fue l nozzle completely in
the fuel conta iner when fill ing.
- If the fuel containe r is made of meta l, the
fuel nozzle must always be in contact with
the container when filling it with f uel. This
~revents static elect ricity from discharg
ing .
- Never spill fue l in the vehicle or the lug
gage compartment. Evaporated fuel is ex
plosive and increases the risk of serious in
jury or death .
- Fo llow lega l requirements when using,
stor ing and transporting fuel containers .
- Make su re the f uel container conforms to
industry standards (ANSI/ASTM F852-86).
(D Note
- Remove spilled fue l from vehicle pa int im
mediately, because it can damage paint.
- Never drive unt il the fuel tank is complete ly
empty. The irreg ular s upply of fue l that re
sults from that can cause eng ine misfires.
Uncombusted fuel will enter the exhaust
system and increase the risk of damage to
t he cata lytic converter .
- If the fuel tank runs complete ly empty in a
vehicle with a
diesel engine , the ignition
must remain switched on fo r at least 30
seconds afte r refueli ng before starti ng the
eng ine.
It may t ake longer than u sual fo r
t he engine to s tart, even up to a minute .
T his is because t he air must f irst b leed ou t
of the fue l system when starting the engine.
@ For the sake of the environment
- If the fue l nozzle is use d co rrectly, it w ill in
dica te t hat the t ank is full the first t ime it
switches off a utomatica lly. Do not try to
add more fuel, because it can spill ove r. A l
so, the expansion space in the tank w ill fill
'
w hich can resu lt in fuel sp illing out when it
becomes wa rm and pollut ing the e nviron
ment.
231
Page 234 of 328

Checking and Filling
@ Tips
Fue l can age and may lead to prob lems when
starting. Audi recommends replacing the fuel
in your vehicle within six months.
@ Tips
- If the engi ne is running while fueling, va
pors can escape or the fuel can spill over.
Because of th is, the fuel no zzle switches off
before the tank is full.
- Do not fuel the vehicle when the ignition is
switched on. Otherwise, the fuel gauge may
not show t he correct level after fueling the
vehicle .
- Diesel veh icles are equ ipped with a diesel
misfueling guard
1>. It allows the vehicle to
be f ueled on ly w ith a diesel fuel pump noz
zle .
- A wo rn o r damaged nozzle or a nozzle that
i s too smal l may not be ab le to open the
diesel misfueling protector . If this is the
case, try t urning the nozzle before inserting
i t in the f uel fille r neck, u se a d ifferent fue l
pump or see an aut horized Audi dea ler or
a uthorized Audi Service Facility fo r assis
tance .
- The misf ueling guard does not open when
adding fue l from a fue l conta iner . You can
bypass it by adding the diesel fuel slow ly.
- The fuel filler door on your ve hicle does not
l ock when you lock the vehicle from the in
side.
l ) Ma rket -specifi c
232
Fuel filler door emergency release
If the cen tral locking system is faulty, the fuel
filler door can be unlocked manually .
Fig. 188 Right re ar l ug gag e compa rtm en t: em erg enc y re
lease (example)
T he emergency release mechan ism is located be
hind the right s ide trim panel in the luggage
compartment.
.,. Remove the cover in the side panel.
.,. Loosen the loop from the retainer and then pull
on the loop carefully-arrow-
~ CD. The fuel fill
er door is released .
.,. To open the f uel filler door, press on the left
side
~ page 230, fig. 186 .
Plug-in hybrid drive*: read and follow the instruc
tions unde r
Qpage 109.
(D Note
Only pu ll on the loop until you feel res ista nce .
You wil l not hear it re lease. Otherw ise you
could damage the emergency release mecha
n ism .
Catalytic converter
Applies to vehicles: with gasol ine engine
It is very important tha t your emi ssion control
sys tem (ca talytic conv erter) is functioning prop
erly to ensure that your vehicle is running in an
env ironmentally sound manner .
.,. Always use lead-free gasoline ~ page 228, Gas
oline grade .
.,. Never run the tank down all the way to empty . ..,.
Page 235 of 328

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~ Never put too much motor oil in your engine
¢ page 242, Adding engine oil
~ Never try to push-or tow-start your vehicle.
The cata lytic converter is an efficient "clean -up"
device bui lt into the exhaust system of the vehi
cle. The catalytic converter burns many of the
pollutants in the exhaust gas before they are re
leased into the atmosphere.
The exclusive use of unleaded fue l is critica lly im
portant for the life of the catalytic converter and
proper functioning of the engine.
A WARNING
The 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 i n 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 o n or near the exhaust mani
fold, exhaust pipes, catalytic converte r o r
heat s hields. During dr iving, t he substance
used for under coati ng could ove rheat and
c ause a fire.
(D Note
- Be aware that just one tank filling with
leaded fue l wi ll al ready ser iously degrade
the pe rformance of the ca talytic converter.
- Do not ex ceed the correct eng ine o il level
~page 242.
- Do not d rive until the fuel tank becomes
complete ly empty. The engine co uld m is
fire. Unburned fuel could also get in to the
exhaust system and this co uld cause t he
cata lytic converter to overheat .
- Do no t sw itch off t he igni tion while t he vehi
cle is moving.
- Do no t continue to operate your vehicle un
der these cond it ions, as othe rwise fue l can
reach the catalytic converter. This cou ld re
su lt in overheating of the converter, req uir
i ng its replacement.
Ch eck ing and Filling
-To ass ure eff icient operat ion of the Emis
sion Contro l System:
- Have yo ur vehicle maintained p roperly and
i n accordance with the serv ice recommen
dat ions in yo ur War ranty
& Ma intenance
booklet.
- L ack of proper ma intenance as well as im
p roper use of the ve hicle will impa ir the
f u nction of t he emission control system
a nd could lead to damage.
~ For the sake of the environment
Eve n when the Em iss ion Control System is op
era ting properly, t he exhaus t gas can have a
su lf ur -li ke exhaus t gas sme ll under some op
erating s tates . This depends on the sul fur
content of the fuel being used. Using a differ
ent brand of fuel may help, or fi lling the tank
with lead-free super grade gasoline.
Diesel particulate filter
Appl ies to vehicles: wit h diesel eng ine
The diese l particu late filter filte rs nearly all of
the soot part icles out of the exhaust. The filter
cleans itself automatically under norma l driving
condit ions. If the filter cannot clean itself (for ex
amp le, because yo u are o nly dr iving short distan
ces), the filte r becomes clogged with soot and
the
II symbol fo r the diese l par ticu late filter il
l u minates
¢page 23.
A WARNING
-Do not park your veh icle over flammab le
materia ls such as grass or leaves because
the high temperature of the diesel particu
late filte r cou ld start a fi re.
-
- Do not app ly an underbody protectant in the
exhaust system area or a fire could start .
233
Page 236 of 328

Check ing and F illing
Selective catalytic
reduction (AdBlue)
General information
Applies to vehicles: with diesel engine
In vehicles with selective cata lytic reduction, a
urea solution (AdB lue) is injected into the ex
haust system before a nitrogen oxide catalytic
converter to reduce nitrogen emissions.
Ad B lue is the marketing name for Diesel Exha ust
Fl uid (DEF).
The AdBl ue is carried in a separate ta nk in the ve
hicle. The Ad Blue usage accounts for approxi
mate ly 0.5% to 1.2% of the diesel f uel that is
used .
W hen a message about refilling the Ad B lue ap
pears in the instrument cluster disp lay, you must
refill the Ad Blue you rself or have it refilled by an
author ized Audi dealer or authorized Audi Service
Facility ¢
page 235.
A WARNING
-
Failure to heed AdBlue refill informat ion in
the instrument cluster can prevent the vehicle
from being started and dr iven . If the vehicle
cannot be driven and an emergency arises,
perso na l in jur y can occur.
- Always have the AdBlue tank refilled well
before the tank runs dry .
(D Tips
-The instrument cluster display indicates the
distance rema ining t hat can be driven
¢ page 234. If the AdBlue tank is com
plete ly empty, the engine wi ll not start
again after the ignition is sw itched off.
- Ad B lue is req uired by law to operate this ve
hicle.
234
· Messages in the instrument cluster display
Applies to vehicles: with diesel engine
T he display indicates if the Ad Blue level is low or
if there is a system malfunction .
AdBlue level low
Yo u w ill be informed if the AdB lue in the tank
drops below a certain level.
AdBlue /;) Refill xxx l -xxx l Ad Blue . Range
1500 mi (2400 km)
This message appears w hen the re is on ly enough
Ad Blue left to dr ive the dis tance indicated in the
driver information system . Refi ll the recom
mended amount of Ad Blue . The sma ller va lue
given in the message rep resents the minim um
amount and the larger value is the maxim um
amount.
AdBlue /9 Refill xxx l -x xx l Ad Blue ! No restart
in
600 miles ( 1000 km). See owner 's manual
This message appears w hen the re is on ly enough
Ad B lue left to drive the distance indicated in the
driver information system . Refi ll the recom
mended amount of Ad Blue. Otherwise the engine
will not sta rt again if you stop it once the dis
tance indicated h as been driven. The smaller val
ue g iven in the message represents the m inimum
amount and t he larger value is the maxim um
amount . As long as the indicator
li gh t is on , you can chec k the rema ining range in
t h e tr ip comp ute r*.
Refill xxx l -xxx l Ad Blu e! Engine
start not po ssible! See owner 's manu al
This message appears when the Ad Blue tank is
empty . Fill the Ad Blue . Otherwise you w ill not be
able to sta rt the engi ne aga in once you stop it .
The Ad Blue must be refilled when the amount in
the tank has reached the min imum level
¢ page 235 , Filling AdBlue .
¢'4 Incorrect filling /system malfunction
A message appea rs if the Ad Blue tank was fi lled
with a f lu id other than Ad Blue and the system
has detected that the tank was filled incorrectly,
or if there is a system malfunction.
Page 237 of 328

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Ad Blue,/' Ad Blue: sy stem fault! No re start in
600 miles (1000 km ). See owner' s manual.
This mes sage appea rs when it is only poss ible to
d rive the d ist an ce ind icated in the dr iver informa
tion system . Drive to the nearest autho rized Audi
dealer or authorized Audi Service Facility to have
the ma lfunction corrected . Otherwise the engine
w ill not start again if you stop it once the d is
tance indicated has been driven .
Ad Blue: system fault . Engine start
not possible! See owner 's manual
This message appears if the sys tem has de te cted
that the tank was filled incorrectly or that there
is a malfunction. Drive immediately to the near
est authorized Aud i dea ler or a uthorized Aud i
Service Facility to have the malfunction correct
ed. Otherwise you will not be able to start the en
g ine again once you stop it .
Filling AdBlue
Applies to vehicles: with selective catalyt ic redu ction
A special refill bottle must be used to fill the
AdBlue.
F ig. 1 89 Right rear s ide of t he veh icle: remov ing the AdB l·
ue cap
F ig. 190 Ad Blue filler neck: insert ing refill bottle
Checking and Filling
T he Ad Blue tank open ing is located near the d ie
sel tank opening. Add at least 1 gallon (3.8 lit
ers) of Ad B lue (two bottles) . This is the min imum
amount required to ensure the system detects
the refilling and to start the engine. You can add a max imum of approximately 4 gallons (15 l it
ers).
Opening the filler neck and refilling AdBlue
with a bottle
Requireme nt: T he request to add AdBlue must
appear in the instrument cluster disp lay .
.. Park your veh icle on a level s urface.
• Switch the ignit ion off.
• Open the tank door¢
page 230.
• Turn the cap on the tank opening to the left to
remove ¢
fig. 189.
• Remove the cap from the ref ill bo ttle.
• Posi tion the refill bo ttle on the fil le r tube and
turn the bottle clockwise until it stops t urning
• Press lightly against the bottom of the bottle
@ to empty it. Continue press ing the bottom
of the bottle until it is empty or until f luid
stops f low ing into the ta nk.
• Tu rn the bottle to t he left without pressing on
the bottom .
Closing the filler neck
.. Turn the Ad B lue cap to the right on the filler
tube until the cap clicks into place.
• Close the tank cover.
Afte r filling
The vehicle must be driven . The system may take
u p to two minutes to detect t hat the AdBl ue has
been filled.
• If the re w as no Ad B lue left in the tank and a
range of
O mi (0 km) was displayed in the in
strument cluster, switch the ign it ion on for
about 30 seconds before starting the engine.
A WARNING
-Ad B lue can irritate the sk in, eyes and respira-
tory system . If there is contact with the flu id,
flus h immed iate ly w it h plenty of water. Con-
su lt a phys ic ian if necessa ry.
~
235
Page 238 of 328

Checking and Filling
CJ) Note
-Only use Ad Blue that conforms to the
standard ISO 22241-1. Do not mix any addi
tives with the AdBlue and do not dilute it
with water.
- Only use refill bottles that are approved for your vehicle. Using other systems can cause Ad Blue to leak.
- Do not add Ad Blue to the diesel tank or add diesel fuel to the Ad Blue tank. Do not start
the engine under any circumstances if the
wrong fuel is filled in the tank . There is a
risk of damaging the fuel tank system and
the engine . See an authorized Audi dealer or
authorized Audi Service Facility for assis
tance.
- AdBlue attacks surfaces such as painted ve
hicle components, plastic and carpet. Re
move the fluid as quickly as possible with a
damp cloth and plenty of cold water. If the
Ad Blue has already crystallized, use warm
water and a sponge. AdBlue residue that is
not removed will crystallize and can damage
the affected surface .
- Do not store the refill bottle in the vehicle.
If it leaks, the escaping Ad Blue could dam
age the vehicle interior .
- Do not allow Ad Blue to come into contact
with clothing. If there is contact with the
fluid, flush immediately with plenty of wa
ter .
(D Tips
-You can obtain refill bottles from an author
ized Audi dealer or authorized Audi Service
Facility .
- Follow the Ad Blue manufacturer's instruc
tions for use and storage .
- A permitted refill bottle contains approxi
mately 1.9 liters of AdBlue .
- Ad Blue can freeze at very low temperatures.
If this happens, the system will not detect
that the Ad Blue was refilled and it will con
tinue to inform you of the low AdBlue level.
The message turns off as soon as the tank
thaws out again.
236
Engine compartment
Working in the engine compartment
Special care is required if you are working in the
engine compartment
For work in the engine compartment such as
checking and filling fluids, there is a risk of in
jury, scalding, accidents, and burns. For this
reason, follow all the following listed warnings
and general safety precautions. The engine
compartment is a dangerous area.
¢ .&. .
.8, WARNING
To reduce the risk of injuries, complete the
following steps before opening the hood:
- Turn the engine off.
- Switch the ignition off.
- Set the parking brake.
- Place the selector lever in the P position.
- Let the engine cool down.
- Never open the hood when you see that
steam or coolant drips from the engine
compartment- there is a danger of burns!
Wait until no steam or coolant flows out.
- Keep children away from the engine com
partment.
- Never spill fluids on a hot engine. These flu
ids (such as the freeze protection contained in the coolant) can catch fire.
- Avoid short circuits in the electrical system,
especially the battery.
- When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of personal injury.
- Never open the cap on the coolant expan
sion tank when the engine is warm . The
cooling system is under pressure.
- To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
large cloth when opening.
- Do not remove the engine cover under any
circumstances . This increases the risk of
burns.
- If tests need to be performed with the en-
-
gine running, there is additional danger due ~
Page 239 of 328

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to moving components (such as the ribbed belt, alternator and radiator fan) and from
the high-voltage ignition system.
- Never reach into the radiator fan. The elec
tric auxiliary fan is controlled by tempera
ture and can switch on suddenly.
- Pay attention to the following warnings list ed when work on the fuel system or on the
electrical equipment is required.
- Always d isconnect the vehicle battery
from the vehicle electrical system
- Do not smoke
- Never work near open flames
- Always have a working fire extinguisher nearby
- To reduce the risk of electric shock and in
jury, never touch the following components when the eng ine is running or is being start
ed:
- Ignition cable
- Other components in the electronic h igh -
voltage ignition system
- If you must check or perform work on the engine while it is running:
- Set the parking brake and place the selec
tor lever in the P (park) position first .
- Always proceed with extreme caution so
that clothing, jewelry or long ha ir do not
become caught in the radiator fan, fan
be lt or other moving components or do
not come into contact with hot compo
nents. Tie back long hair before beginning
work and do not wear cloth ing that can
hang down into the engine.
- L imit your exposure to exhaust and chemi
cals to as short a time as possible~&.
_& WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain or
em it chem icals known to the State of Cali
fornia to cause cancer and birth defects and reproductive harm. In addition, certain flu
ids contained in vehicles and certain prod
ucts of component wear contain or emit
chemicals known to the State of California
C hecki ng an d Fill in g
to cause cancer and birth defects or other
reproductive harm.
- Battery posts, terminals and related acces
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms.
Wash hands after handling.
(D Note
When filling fluids, be sure not to mix the f lu
i ds up. Otherwise severe malfunctions and en
gine damage will occur.
@ For the sa ke of the environment
You should regularly check the ground under
your vehicle in order to detect leaks quickly. If there are visible spots from oil or other fluids, bring your veh icle to an authorized Audi deal
er or authorized Aud i Serv ice Facility to be
checked.
Opening the hood
The hood is released from the interior .
Fig. 191 Sectio n from t he driver 's side footwell: release
lever
Fig. 192 Rocker switch under the hood
237
Page 240 of 328

Check ing and F illing
Read and follo w the WARN IN GS before check
ing anything in the engine compartment
c::> page 236, Working in the engine compart
ment.
Make sure the wiper arms are not raised up from
the windshield. Otherwise the paint could be
damaged .
Applies to vehi cles w ith p lug-in hybrid dr ive* :
switch the ignition off before re leasing the hood
so that the gasoline engine does not start auto mat ica lly.
... With the driver's door open, pull the lever be
low the instrument panel in the direction of the
arrow
c::> fig. 191 .
... Raise the hood s lightly c::> ,&. .
... Press the rocker switch under the hood upward
c::> fig. 192. This releases the catch.
... Open the hood .
A WARNING
Never open the hood when you see that steam
or coolant drips from the engine compart-
238
ment- there is a dange r of bu rns! Wait unt il
no steam or coolant flows out.
Closing the hood
... Push the hood down until the force of the strut
is overcome.
... Let the hood fall lightly into the latch .
Do not
press it in .
c::> ,&..
A WARNING
If the hood is not latched complete ly, it could
f ly up wh ile you are dr iving and obst ruct your
vision .
- For safety reasons, the hood m ust always be
closed securely while driv ing. Because o f
this, always chec k the hood after closing it
to make sure it is latched correctly. The
hood is latched if the front corners cannot
be lifted.
- If you notice that the hood is not latched
while you are driving, stop immed iate ly and
close it, because this increases the risk of an
accident.