2016 AUDI A7 engine

fill up at busy gas stations where the seasonal
adjustment is more likely to be made in time.
(D Note
- Methanol fuels which do not meet these re­
quirements may cause corrosion and dam­
age to plastic and rubber components in the
fuel system.
- Do not use fue ls that fail to meet the speci­
fied criteria in this chapter.
- If you are unable to determine whether or
not a particular fuel blend meets the speci­
fications, ask your service station or its fuel
supplier.
- Do not use fuel for which the contents can­
not be identified.
- Fuel system damage and performance prob­
l ems resulting from the use of fuels differ­
ent from those specified are not the respon­
s ibility of Audi and are not covered under
the New Vehicle or the Emission Control
System Warranties.
- If you experience a loss of fuel economy or
driveability and performance problems due
to the use of one of these fuel blends, we
recommend that you switch to unb lended
fuel.
Gasoline additives
A ma jor concern among many auto manufactur­
ers is carbon deposit build-up caused by the type
of gasoline you use.
Although gasol ine grades differ from one manu­
facture r to another, they have certa in things in
common. All gasoline grades contain substances
that can cause deposits to collect on vita l engine
parts, such as fuel injectors and intake valves. Al­
though most gasoline brands include additives to
keep engine and fuel systems clean, they are not
equally effective .
Audi recommends using TOP TIER Detergent Gas ­
oline. For more information on TOP TIER Deter-
M gent Gasoline, please go to the official website N
j (www .toptiergas.com).
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Fuel and Refueling
After an extended period o f using inadequate
fuels, carbon deposit build-ups can rob your en­
gine of peak performance .
(D Note
Damage or malfunction due to poor fuel qual­
ity is not covered by the Audi New Vehicle
Limited Warranty.
Diesel fuel
Applies to vehicles: with diesel engine
Always use ULSD (Ultra Low Su lfur Diesel) No. 2.
The ULSD No. 2 meets the ASTM 0975.
Diesel fuel with concentrations of biodiese l high­
er than 5
% such as Bl 1, B20 or 8100 are strictly
prohibited.
Service station fue l pumps are labeled with the
correct fue l information for easy recognit ion by
the user .
If the d iese l fue l pump is not labe led
ask the station operator what fuel is being dis­
pensed before fi lling up your vehicle.
ULSD No. 2 may not be available outside the USA
and Canada . Be sure to check before traveling to
other countries.
ULSD No. 2 can become thicker in very cold tem­
peratures, and this can impair the engine's start­
ing and running. Depending on the season, gas
stations provide ULSD No. 2 that flows better in
cold temperatures so that you can continue oper­
ating your vehicle as usual.
@ Note
- Your vehicle's diesel engine was designed
soley for use with ULSD No. 2. Therefore,
never use gasoline, heating oil, other fuels
or flow improvers. These conta in substances
that will severely damage the fuel system
and the engine . Such damage will not be
covered by your New Vehicle Limited War­
ranty.
- If you put any amount of incorrect fuel in
the fuel tank, do not start the engine under
any circumstances. Immediately contact the
nearest authorized Audi dealer or author­
ized Audi Service Facility for assistance.
211

Fuel and Refueling
These fuels contain substances that can se ­
verely damage the fuel system and the en­
gine if the engine is started.
Refueling
Fuel filler neck
The fuel filler neck is located on the right rear
side pane l beh ind the fuel filler flap .
If the power locking system should fail, you can
still open the flap manually - for detailed instruc­
tions see
¢page 214.
You can find the fuel tank capacity of your vehicle
in
¢ page 272 .
The label on the inside of the fuel filler flap tells
you the correct fuel for your vehicle. For more in­
formation about fuel specifications, see
¢ page 210 .
Your vehicle fuel tank has an on board refuelling
vapor recovery system. This feature helps to pre­
vent fuel vapors from escaping from the tank and polluting the environment while you refue l your
vehicle. In order to fill the tank properly whi le
protec ting the environment, please follow this
refueling procedure carefully.
8_ WARNING
Under normal operating conditions, neve r ca r­
ry additional fuel containers in your car. Gas
canisters and other containers used to trans­
port fuel can be dangerous. Such containers,
full or empty, may leak and could cause a fire
in a collision. If you must transport fuel to
use for your lawn mowe r, snow blower, etc.,
be very careful and always observe loca l and
state laws rega rding the use, transportation
and storage of such fuel containers. Make cer­
tain the con tainer meets industry standards
(ANSI/ASTM F852 -86).
(D Note
Never drive you r vehicle until the fuel tank is
completely empty. The irregu lar supply of
fue l can cause misfiring. Gasoline could enter
the exhaust system and damage the catalytic
converter.
212
Refuelling
Fig. 180 R ig ht rea r ve hicle side : Opening the fuel fill er flap
Fig. 181 Fuel fille r flap w ith attac hed fuel cap
When act ivating the central locking, the fuel fill­
er flap is automatically unlocked or locked . Re­
fuel the veh icle with the ignition switched
off.
Taking the fuel cap off
.. Press the left side of the fuel f iller flap to open
it ¢
fig. 180-arrow-.
.. Unscrew fuel filler cap counter-clockwise and
hang it on the fuel filler flap
~ fig . 181 .
.. Check the label on the ins ide of the fuel filler
flap to determine if the vehicle must be fue led
w ith gasoline or diesel fuel.
Refuelling procedure
.. Insert the fuel nozzle from the gasoline pump
into the fuel filler neck as far as it will go .
.. Select a medium refuelling rate so that the
nozzle switches off automatically when the
tank is full.
Putting the fuel cap back on
.. After filling your tank, twist the fuel filler cap
clockw ise as far as it will go .
.. Close the fuel filler flap . ..,_

M N <( (.J
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To avoid fuel spilling or evaporating from the fuel
tank always close fuel filler cap properly and
completely. An improperly closed fuel filler cap
may also cau se the MIL lamp¢
page 28 to come
on.
A WARNING
Improper refueling or handling of fuel can
cause fire, explosion and severe burns .
- Fuel is highly flammable and can cause se­
vere burns and other injuries .
- Failure to shut the engine off while refuel­
ing and/or to insert the pump nozzle fully
into the fuel filler neck could cause fuel to
spray out of filler neck or to overflow . Fuel
spray and overflowing fuel can cause a fire .
- Never use a cellular telephone while refuel­
ing. The electromagnetic radiation can
cause sparks that can ignite fuel vapors and
cause a fire.
-
-Never get back into your vehicle while refu­
eling.
If in exceptional circumstances you
must get back in your vehicle while refuel­
ing, make certain that you close the door
and touch metal to discharge static electric­
ity before touching the filler nozzle again.
Static electricity can cause sparks that can ignite fuel vapors released during refueling.
- Never smoke or have an open flame any­ where in or near your vehicle when refueling
or filling a portable fuel container.
- For your safety, we strongly recommend that you do not travel with a portable fuel container in your vehicle . The container, full
or empty may leak and could cause a fire,
especially in a crash .
- If, under exceptional circumstances, you
must transport a portable fuel container,
please observe the following:
- Never fill a portable fuel container while it
is anywhere in or on the vehicle (for exam­
ple, in the luggage compartment, or on
the trunk). Static electricity can build up while filling and can ignite fuel vapors
causing a fire.
- Always place a portable fuel container on
the ground before filling.
Fuel and Refueling
- Always keep the filler nozzle completely
inside the portable container before and
during filling.
- If filling a portable container made of
metal, the filler noz zle must always be in
contact with the container. This will help prevent static electricity from discharging
and cause a fire.
- Never spill fuel inside the vehicle or lug­
gage compartment . Fuel vapors are highly
flammable.
- Always observe local and state/provincial laws regarding the use, storage and trans­
portation of fuel containers.
- Make certain the fuel container meets in ­
dustry standards (ANSI/ ASTM F852 -86) .
(D Note
If any fuel has spilled onto the car, it should
be removed immediately to prevent damage
to the paint.
@) For the sake of the environment
As soon as the correctly operated nozzle
switches off automatically for the first time,
the tank is full. Do not try to add more fuel
because fuel may spill out . In addition, the
expansion space in the fuel tank will be filled -
causing the fuel to overflow when it becomes
warm and pollute the environment.
(D Tips
- Running your engine while refuelling may
cause vapors to escape or even cause fuel to
spill out of the tank. This would then shut
off the fuel nozzle before the tank is full.
- Do not refuel your vehicle with the ignition
switched on. The fuel gauge may otherwise
not indicate the correct fuel level after refu­
elling.
- Diesel vehicles* are equipped with a diesel
misfueling protector. It allows the vehicle to
be fueled only with a diesel fuel pump noz­
zle . A worn or damaged nozzle or a nozzle
that is too small may not be able to open
the diesel misfueling protector. If this is the .,..
213

Fuel and Refueling
case, try turning the nozzle before inserting
it in the fuel fi ller neck, use a different fuel
pump or see your authorized Audi dea ler or
authorized repair facility for assistance.
- The fuel filler flap of your vehicle is not
l ocked when you lock the vehicle from the
inside .
Fuel filler door emergency release
If the central locking system is faulty, the fuel
filler door can be unlocked manually.
Fig. 182 Right side tri m in the luggag e compartme nt: re·
mov ing the trim
"' ~ 0
<.:l "'
Fig. 183 Luggage compartment: Fuel filler door emergen­
cy release
Removing the side trim
• To remove the right side tr im, first remove the
retainer from the mounts
r:!.> fig. 182.
• Turn both locking mechanisms 90° to the Left
using a coin or a similar object and remove the
locking mechanisms.
• Tilt the retainer upward and pu ll the tr im out.
Lay the trim down on its side, because there is
an electrical wire for the socket* on the back.
214
Fuel filler door emergency release
• Loosen the strap from its bracket and pull on it
r:!.> fig. 183 r:!.>{2) . You can now open the fuel fill­
er door as usu al
r:!.> page 212.
(D Note
Only pull on the Loop until you feel resistance.
You will not hear it release. Otherwise you
could damage the emergency release mecha­ nism.
Selective catalytic reduction
General information
Applies to vehicles: with selective catalyt ic red uction
In vehicles with selective catalytic reduction, a
urea solution (AdB lue) is injected into the ex­
haust system before a nitrogen oxide catalytic
converter to reduce nitrogen emissions.
The Ad Blue is carried in a separate tank in the ve­
hicle. The Ad Blue usage accounts for approxi­
mately O. 5 % to 2. 5% of the diesel fuel that is
used.
When a message about refilling the AdBlue ap­
pears in the instrument cluster display, you must
refill the Ad Blue yourself or have it refilled by an
authorized Audi dealer or authorized Audi Service
Facility
r:!.> page 215.
{!) Tips
-The instrument cluster d isp lay indicates the
distance remaining that can be driven
r:!.>page 215. If the AdBlue tank is com­
pletely empty, the engine will not start
again after the ignition is switched off.
- Ad Blue is requ ired by law to operate this ve­
hicle.

M N <( I.J "". rl I.O
"' N I.O rl
Messages in the instrument cluster display
Applies to vehicles: with selective catalyt ic reductio n
The display indicates if the Ad Blue level is low or
if there is a system malfunction .
AdBlue level low
You will be informed if the Ad Blue in the tank
drops be low a certain level.
Please refill Ad Blue. Range 1500 mi (2400 km )
This message appea rs whe n there is o nly enoug h
Ad B lue left to dr ive the d ist ance ind icated in the
d river i nfo rmation sys tem . Fill the AdBl ue.
Ad Blue ,0 Refill AdBlue! No restart in 600 mi
( 1000 km)! See owner 's manual
This message appea rs when there is o nly enoug h
Ad Blue left to dr ive the distance indicated in the
d river info rmation system . Fill the Ad Blue . Othe r­
wise the eng ine will not sta rt again if you s top it
once the di stan ce in dicated ha s been driven. You
can also check t he rem ain ing distance in the on­
board comp ute r*.
Refill Ad Blu e! No restart! See own -
er' s manual
This message appea rs whe n the AdBlue tank is
empty . Fill t he AdBl ue. Othe rw ise you w ill not be
ab le to start the engine aga in once yo u stop it.
T he AdBlue must be refi lled when t he amo unt in
the tank has reac hed the m inimum leve l
q page 215, Filling Ad Blue .
Incorrect filling/system malfunction
A message appears if the AdBl ue tank was filled
with a fluid other than AdBlue and the system has detected t hat the ta nk was f illed incor rectly,
or if there is a sys tem ma lf u nction .
Ad Blue -I' Ad Blue: System fault! No restart in
600 mi (1000 km). See owner's manual.
This message appea rs when it is only poss ible to
drive the d istance ind icated in the dr iver informa­
tion system. Drive to the nearest authori zed Audi
dealer or authorized Aud i Service Fac ility to have
the ma lfunction corrected . Otherwise the engine
w ill not start aga in if you stop it once the dis­
tance ind icated has been driven .
Fuel and Refueling
AdBlue: System fault No restart!
See owner's manual
T his mes sage ap pea rs if t he system h as detec ted
t h at the t ank was fi lled incor rectly o r tha t there
is a ma lf u nction . Drive immed iate ly to the near ­
est authorized A udi dealer or autho rized A udi
Se rv ice Facility to have the ma lf u nction co rrect ­
ed. Otherwise yo u will not be ab le to start the en­
gine aga in once you stop it .
Filling AdBlue
Applies to vehicles: with selective catalytic reduction
Fig. 184 Rig ht rea r ve hicle s ide: re m oving t he AdB lu e cap
The Ad Blue filler t ube is located near the diesel
filler t ube . Add at least 1.5 ga llons (5.7 liters) of
AdBl ue. This is the m inimum amount required to
ensure the system detects the refi lling a nd to
start the eng ine . Yo u can add a max imum of ap­
proximate ly 4.5 gallons (17 liters) .
Req uirement: The request to add Ad Blue must
appear in the instrument cluster display .
.. Switch t he ignit ion off .
.. Open the tank door
q page 212.
.,. Turn the tank cap counterclockwise w it h the lug
w rench from the vehicle too l kit to remove it
q fig . 184 .
.,. Fill the Ad Blue with th e bottl e ~ page 216 or
the caniste r<=>
page 216.
.&_ WARNING
Ad Bl ue can irri tate the skin , eye s and respira­
tory sys tem . If the re is con tact with t he flu id,
f lush imme diate ly w ith plenty of water. Co n-
su lt a physicia n if necessary. .,,_
215

Fuel and Refueling
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 di lute it
with water.
- Do not add Ad Blue to the diesel tank or add diesel fuel to the AdBlue tank. Mixing can
lead to damage to the engine and the Ad Bl­
ue tank system .
- Ad Blue attacks surfaces such as painted ve­
hicle components, plastic and carpet . Re­
move the fluid as quickly as poss ible with a
damp cloth and plenty of cold water. If the
AdBlue has already crysta llized, use warm
water and a sponge. Ad Blue residue that is
not removed will crysta llize and can damage
the affected su rface.
- Do not store refill bottles or canisters per­
manently in the vehicle. If the container
l eaks, the escaping Ad B lue cou ld damage
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
Follow the Ad Blue manufacturer's instruc­
tions for use and storage.
Refilling AdBlue with a bottle
Applies to veh icles: w ith selective catalyt ic reductio n
"' Remove the cap from the refill bottle c:> .&. in
Filling AdB/ue on page
215, c:> (D in Filling
AdB/ue on page
216.
"' Position the bottle on the filler tube and turn
the bottle clockwise until it stops turning.
"' Press lightly against the bottom of the bottle
to empty it. Continue pressing the bottom of
the bottle unti l it is empty or until fluid stops
flowing into the tank.
"'T urn the bott le to the left without pressing on
the bottom.
"' Close the filler neck
c:> page 217, Completing
AdBlue refill .
216
(D Tips
-You can obtain refill bottles from an author ­
ized Audi dea ler or authorized Audi Service
Facility.
- A refill bottle contains approximately O.S
gallon (1.9 liters) of Ad B lue.
· Refilling Ad Blue with a canister
App lies to vehicles : wit h selective cata lyt ic reduction
®
+®
Fig. 185 Canis te r w ith hose
N ::> "' Remove the cover on the refill canister c:> .&. in
Filling AdBlue on page
215, c:> (D in Filling
AdBlue on page 216.
"'Secure the end of the hose (Don the opening in
the canister @by turning the hose to the right.
"' Remove the cap@from the other end of the
hose @.
"' Posit ion the end of the hose @on the filler
neck in the vehicle and turn the hose to the
r ight to tighten it.
"' Lift the canister up and then tip it. Continue
holding the canister in a tipped position until it
is empty or until no more fluid flows into the
tank.
"' Remove the canister and close the filler neck
c:> page 217, Completing AdBlue refill.
(D Note
Only use ref ill canisters that are approved for
your vehicle. Using other systems can cause Ad Blue to leak .
0) Tips
-An authorized Aud i dealer or authorized
Audi repa ir facility can tell you which refill
canisters are approved for your veh icle.

M N <( (.J
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-A re fill canister contains 1.3 gallons ( 5 lit­
e rs) of Ad Bl ue .
Completing AdBlue refill
Applies to vehicles: with selective catalyt ic reduction
Cl osing the filler neck
~ Turn the cap to t he rig ht on the filler nec k with
the whee l wrench until the cap clic ks into p lace.
This t ightens the cap to the specification <=>
A
in Filling AdBlue on page 215, <=>CD in Filling
AdBlue on page 216 .
~ The n press on t he left side of t he tank doo r un-
t il you hear i t loc k.
After filling
The vehicle must be driven . The system may take
up to two mi nutes to detect that the Ad B lue has
been f illed.
~ If there was no AdB lue left in the tank and a
range of
O mi (0 km ) was shown in the d isp lay,
switch the ig nition on for ab out 30 sec onds be­
fore starting the engine .
Fuel and Refueling
217

Checking and Fill in g
Checking and Filling
Hood
Releasing the engine hood
The engine hood is released from inside the vehi­
cle.
Fig. 1 86 Driver footwell: release lever
Fig. 187 Rocker sw itch under the hood
Make s ure the wiper arms are not ra ised up from
the windshield . Otherwise the paint could be
damaged .
.. Wi th the driver's door open, pu ll the lever un­
der the instrument panel in the direction of the arrow
c::> fig. 186.
.. Raise the hood s lightly c::> _A .
.. Press the rocker switch under the hood upward
Q fig. 187. This releases the catch.
.. Open the hood.
A WARNING
Hot engine coo lant can burn you.
- To reduce the risk of being burned, never
open the hood if yo u see or hear steam or
coolant escap ing from the engine compa rt­
me nt. Wait until no steam or coo lant can be
218
seen or heard before carefully open ing the
hood.
Working in the engine compartment
Be especially careful whenever you work in the
engine compartment.
Whenever you mu st perform any w ork in the
engine comp artment , for example checking and
filling d iff erent fluid s, the re i s a risk of injury ,
burns and accidents. To p revent pe rsonal injur y
alwa ys ob serv e the follow ing WARNING S. The
engi ne compartment o f an y vehicle is a h azard ­
ous are a
i::>_6 .
A WARNING
To help avo id injury, before you check any­
thing under the hood:
- Turn off the engine.
- Switch off the ignition.
- App ly the parking brake.
- Move selector leve r to P (Park).
- Always le t the eng ine cool down. Hot com-
ponents wi ll burn skin on contact .
-
-To reduce the risk of bei ng bur ned, never
open the hood if you see or hear steam o r
coo lant escaping from the engine compart­
ment . Wait unt il no steam o r coolant can be
seen or heard before carefully open ing the
hood.
- Keep c hildren away from the engine com­
partment .
- Never sp ill fluids on hot engine compo ­
nents. They can cause a fire.
- Never touch the radiator fan. The auxiliary
electric fan is temperature cont ro lled and
can switch on suddenly.
- Never open the coolant reservoir cap when
the engine is sti ll warm. The coolant system
is pressur ized and hot coo lant co uld spray
out.
- Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag ove r the cap w hen you open the
coo lant reservoir.