2018 AUDI A5 COUPE fuel cap

Cockpit overv iew
Engin e oil temperatur e indi cator
App lies to: ve hicles w ith Audi virtual cockpit
The engine oil temperature is only shown in the
expanded view or in the sport view
,::::, page 15.
When engine oil temperatures are low, the dis­
p lay --- °F ( ---
0
() appears in the instrument clus ­
ter.
The engine has reached its operating tempera­
ture when the engine oil temperature is between 176 °F (80 °() and 248 °F (120 °() under normal
driving conditions . The engine oil temperature
may be higher if there is heavy engine load and
h igh temperatu res outside. This is not a ca use for
concern as long as
the . ,::::, page 31 or El
,:::, page 31 indicator lights do not turn on .
Boost indicator
Applies to: ve hicles with Audi virtual cockpit
The boost indicator is only displayed in the sport
view
,:::, page 15.
The current engine load (meaning the current
boost pressure) is indicated by a bar .
Tachometer
The tachometer displays the engine speed in rev­
olutions per minute (RPM).
The beginning of the red zone in the tachometer
indicates the maximum perm iss ible engine speed
for all gears once the engine has been broken in and when it is warmed up to operating tempera­
ture. Before reaching this zone, you should sh ift
into the next h ighest gear, select the D/S selec­
tor lever position, or remove your foot from the
accelerator pedal.
d) Note
The needle in the tachometer @,::::, page 10,
fig . 3
or ,::::, page 10, fig . 4 may only be in the
red a rea of the gauge fo r a short time or there
is a risk of engine damage. The location where
t he red zone beg ins va ries depending on the
eng ine.
12
@) For the sake of the environment
Upshifting early helps you to save fue l and re­
d uces operat ing no ise .
Fuel level
The display (z)c::>page 10, fig . 3 or c::>page 10,
fig. 4
only funct ions when the ignition is switch­
ed on . When the display has reached the reserve
mark, a red LED tur ns on and the
t9 indicator
li ght tur ns on
c::> page 34 . The red LED will blink
whe n the fuel level is very low .
For the tank capacity in your veh icle, refer to the
Technical
Data ,::::, page 388 .
(D Note
Never drive until the tank is comp letely emp­
ty . The irregular supply of fuel t hat results
from that can cause engine misfires. Uncom­
busted fue l w ill then enter the exhaust sys­
tem. This ca n cause overheati ng and damage
to the ca talyt ic converte r.
Odometer
Fig. S Instrument cluste r: odomete r and reset button
Tr ip odomet er and odomet er
The trip odometer shows the distance driven
s ince it was last reset.
It can be used to measure
shor t dista nces.
The trip odometer can be reset to zero by press ­
i ng the
@J reset button.
The odometer shows the total distance that the
vehicle has been driven.
llJI,

fast acceleration) and have the malfunction cor­rected. See an authorized Audi dealer or
authorized Audi Service Facility .
The electronic speed limiter may be faulty if the
indicator light turns on. For additional informa­
tion, see
c:> page 107, Electronic speed limiter .
The MIL indicator light may also turn on if the
fuel filler cap is not closed correctly
c:>page324.
On-Board Diagnostics
Fig. 22 Location of Data Li nk Con nec tor (DLC )
On-Board Diagnostics monitors the components
of your em ission control system. Each monitored
component in your eng ine system has been as­
signed a code. In case of a ma lfunction, the com­
ponent will be identified and the fault stored as a
code in the control module memory.
The MI L light may also illuminate if there is a
leak in the on -board fuel vapor recovery system.
If the light illuminates after a refueling, stop the
vehicle and make sure the fuel filler cap is prop­ erly closed (only vehicles with gasoline engine)
c:>page324 .
In order to make an accurate diagnosis, the stor­
ed data can only be displayed using special diag­ nostic equipment (generic scan tool for OBD) .
In order to connect the specia l diagnostic equip­
ment, push the plug into the Data Link Connector
(DLC). The DLC is located to the right of the hood
release
c:> fig. 22.
~ Your authorized Audi dealer or qualif ied work-
;:::: shop can interpret the code and perform the nee-
" ~ essary repair . 0
'° ~ co
Cockpit overview
A WARNING
--
Do not use the diagnostic connector for per­
sonal use. Incorrect usage can cause malfunc­
tions, which can increase the risk of a colli­
sion!
Indicator lights
Description
The indicator lights in the instrument cluster
blink or turn on. They indicate functions or mal­
functions.
Messages may appear with some indicator lights.
A warn ing s ignal will sound at the same time.
The indicator lights and messages in the instru­
ment cluster display can be covered by other dis­
plays. To show them again, select the second tab
with the mult ifunct ion steer ing wheel
c:> page 13 .
If there are several malfunctions, you can display
them one at a time using the thumbwheel.
Some indicator lights in the display can display in
several co lors.
it Central indicator light
If the. or d indicator light turns on, check
the message in the instr ument cluster.
Overview
Some indicator lights turn on briefly as a function
check when you sw itch the ignition on. These sys ­
tems are marked with
a./ in the fo llowing tab les.
If one of these indicator lights does not turn on,
there is a malfunction in that system.
Your vehicle has either a monochrome display or
a multicolored display, depending on vehicle
equipment. Some indicator lights appear white
on a monochrome display .
The. or Q central
indicator light turns on at the same time to indi-
cate the priority of these indicator lights.
..,.
25

<( a, .... N ,....
N .... 0 \0
3 a,
C© ) Brake system
rm Brakes overheating . Please shift to D
rm Brakes overheating. Please select a gear and
follow gear recommendation
There was a heavy load on the brakes. Engage a
suitable gear (manual transm ission) or place the
selector lever in the D/S position (automat ic
transmission) to use the eng ine braking effect
and reduce the load on the brakes.
~·
:t:J /(0 : Brake pads
II (USA models)/£i1 (Canada models) Brake
pads: wear limit reached. You can continue driv­
ing. Please contact Service
The brake pads are worn.
Drive to an authorized Aud i dealer or authorized
Aud i Service Facility as soon as possible to have
the malfunct ion corrected .
c:l:::, Engine control
II Drive system: malfunction! Please contact
Service
There is an engine control malfunction .
Drive slow ly to an author iz ed Audi dealer or au­
thor ized Audi Service Facility to have the eng ine
checked .
W Engine control (diesel engine )
Applies to: vehicles with diesel engines
The engine is preheating if the II indicato r light
turns on when the ignition is switched o n.
I f the indicator light does not turn on or b links
while driving , there is an eng ine control malfunc ­
tion .
Immediately drive slowly to an authori zed Aud i
dealer or authorized Aud i Serv ice Facility to have
the malfunction co rrected .
o Malfunction indicator lamp (MIL)
The malfunction indicato r lamp (MIL) is part of
the On -Board Diagnostic System (OBD II). The Cockpit overview
('4 ,;ymbol turns on when the
ignition is switched
on and turns off again once the engine is started
and running at a steady idle speed. This indicates
that the MIL is function ing correctly.
T he indicator light turns on if there is a malfunc­
tion in the engine electronics. See an authorized
Audi dealer or authorized Audi Service Fac ility to
have the malfunction corrected . For additional
information, see
c:::> page 24.
The indicator light can a lso turn on if the fuel fill­
er cap is not closed correctly
c:::> page 324.
,m,, Diesel particulate filter
Applies to : vehicles wit h diesel eng ine a nd diesel particulate
filter
II Particulate filter : malfunction! See owner's
manual
T he diese l particulate filter requires regenera­
tion . To support the filter 's self-cleaning func­
tion:
Drive for approximately 15 minutes at a mini ­
mum of 37 mph (60 km/h) in 4th or 5th gear
(manua l transmission) or in the S selector lever
position (automatic transmission). Keep the en­
gine speed at approximately 2,000 RPM . The
temperature increase that will result from th is
can burn off the soot in the filter . The ind icator
light will turn off when the cleaning has complet­
ed successfully .
If the indicator light does not turn off, drive im­
med iate ly to an authori zed Audi dealer or author­
ized Audi Service Facility to have the malfunct ion
corrected .
A WARNING "---
Always adapt your speed to the current
weather, road and traffic conditions. You
should never disobey traffic laws in order to
follow driving recommendations .
@ Tips
For additional informat ion on the diesel par­
ticulate filter, see
c:::> page 329 .
33

Checking and Filling
any circ umstances. Immediately contact the
nearest author ized Audi dealer or author­
i zed Audi Service Facility for assistance .
These fuels contain substances that can se­
verely damage the fue l system and the en­
gine if the engine is started .
Refueling
Fuel filler neck
The fuel fille r neck is located on the right rear
s ide pan el behind the fu el filler flap .
I f the power locking system should fail, you can
still open the flap manua lly
-for detai led instruc­
tions see
c::> page 326.
You can find the fuel tank capac ity of you r vehicle
in
c::> page 388 .
The label on the inside of the fuel filler flap tells
you the correct fue l for your vehicle . For more in­
formation about fue l specifications , see
c::> page 322 .
Your veh icle fuel tank has an onboard refuelling
vapor recovery system . This feature he lps to pre­
ve nt fuel vapors from escap ing from the tank and
pollut ing the e nvironment while yo u re fuel your
veh icle. In order to fi ll the tank properly while
protecting the environment, please fo llow this
r e fu eling procedure carefu lly.
& WARNING
Under normal operating conditions, never car­
ry additiona l fuel containers in yo ur car. Gas
canisters and other conta iners used to trans­
port fuel can be dangerous . S uch containers,
full or empty , may lea k and could cause a fire
in a collision. If yo u m ust t ransport fue l to
use for yo ur lawn mower, snow blower, etc.,
be very careful and a lways obse rve loca l and
state laws regard ing the use, t ransportation
and sto rage of such fue l conta iners. Make cer­
tain the container meets industry standards
(ANSI/ASTM F852
-86).
(D Note
Never drive your vehicle unt il the fuel tan k is
comp letely empty . The irregular supply of
324
fu el can cause misfiring. Gasoline could ente r
the exhaust system and damage the catalytic
converter.
Fueling procedure
F ig . 2 6 8 Righ t rea r side of th e vehicl e: op enin g the fue l
fi ller door
Fig. 269 Fuel fille r doo r wit h attached fuel c ap
The fuel filler doo r is unlocked or locked by the
cent ral lock ing system .
Opening the fuel cap
.. Press the left side of the fuel f iller doo r to open
i t
c::> fig. 268 -arrow-.
.. Unscrew the tank cap counterclockwise .
.,.. Place the cap from above on the open fuel filler
door
c::> fig . 269 .
Closing the fuel cap
.. Turn the fuel cap to the right until it stops.
.. Close the fuel filler door until i t latches.
Onc e the pump noz zle sw itches
off, the fuel tank
is "full ". Do not fill the tank more . Otherwise the
expans ion space in the tank w ill be filled.
The correct fuel type fo r your ve hicle can be
fo und o n a label located on the inside of the f uel
IJJ,

<( a, .... N ,....
N .... 0 \0
3 a,
filler door. For additional information on fuel,
see
~page 322.
The fuel tank capacity of your vehicle is listed in the
T ec hnical Dat a section ~ page 388.
To avoid fuel spill ing or evaporating from the fuel
tank always close fuel cap p roperly and com­
p letely . An improperly closed fue l filler cap may
a lso cause the MIL
lamp~ page 24 t o come on.
A WARNING -
Not paying attention when fueling or han­
dling fue l incorrectly can lead to fires, exp lo ­
sions or serious in juries.
-Fuel ignites easily and can cause serious
burns and other injuries.
-If you do not switch the engine off when fu ­
eling and/or do not insert the fuel nozz le
completely into the tank opening, fue l can
leak out or run over. Leaked fuel can ignite
and start a fire.
-Do not use the telephone whi le fueling. The
electromagnetic rays can cause sparks,
wh ich can ignite fuel vapors and start a fire.
-Do not sit in your vehicle while fueling. If
you must make an except ion and enter your
vehicle again wh ile fue ling, close the door
and touch meta l to discharge static electric­
ity befo re touch ing the fue l nozzle. Static
elect ricity can create spar ks, wh ich can ig ­
ni te vapo rs when fue ling.
-Do not smoke or have an open flame in the
area when fueling your veh icle o r filling a
f uel contai ner because th is increases the
risk of an explos ion .
-For yo ur safety, carrying f uel containers in
yo ur vehicle is no t recommended. Whethe r
f ull or empty, the conta iner can leak a nd
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 container with fuel
while it is in or on the vehicle. Stat ic elec­
tr icity is d ischa rged when filling wh ich can
cause the f uel vapors to ignite and in­
creases the r isk of an explos ion.
-Always p lace a fuel containe r on the
g ro u nd before fi llin g.
Ch eck ing and Filling
-Always hold the fue l nozzle completely in
the fuel container when filling.
-If the fuel container is made of metal, the
fuel nozzle must always be in contact with
the container when filling it with fuel. This
prevents stat ic electricity from discharg­
ing .
-Never spill fuel in the vehicle or the lug­
gage compartment. Evaporated fuel is ex­
plosive and increases the risk of serious in­
jury or death .
-Follow legal requirements when using,
stor ing and transporti ng fuel conta iners .
-Make sure the fuel container conforms to
industry standards (ANSI/AS TM F8S2-86).
@ Note
-Remove spilled fuel from vehicle pa int im­
mediately, because it can damage paint.
-Never drive unti l the fuel tank is complete ly
empty. The irregular supply 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 catalytic converte r.
-If the fue l tank runs complete ly empty in a
vehicle with a
diesel eng ine , the ignition
must remain swit ched on fo r at least 30
se conds afte r ref ueli ng before starti ng the
eng ine. It may take longer than usual fo r
t he engine to s tart, even up to a minu te.
T his is because the air must first b leed out
of the fue l system when starting the eng ine.
@ For the sake of the environment
Do not overfill the fuel tank, otherwise fuel
can leak out when the veh icle is warming up.
(D Tips
D iesel ve hicles are eq uipped w ith a diesel mis­
fueling guard .
It allows the vehi cle to be fu­
eled on ly with a diesel fuel pump nozzle. A
worn or damaged nozzle or a nozzle that is
too small may not be able to open the diese l
misfueling guard. If this is the case, try turn­
i ng the nozzle before inserting it in the fue l
filler neck, use a different fuel pump, o r see
325

This message appears when there is only enough
Ad Blue left to drive the distance indicated in the
i nstr ument cluster . Fill the Ad Blue .
• Refill with at least x qt (l) AdBlue. No en·
gine start in
x mi (km ). See owner 's manual
This message appears when there is only eno ugh
Ad Blue lef t to d rive the distance indicated in the
i nstr ument cluster. Fill the Ad B lue. O therwise
the engine will not start again if you stop it once
the distance indicated has been driven .
• Refill with at least x qt (l) AdBlue . Engine
start n ot possibl e. See owner 's manual
This message appea rs when the Ad Blue tank is
empty. Fill the AdB lue. Otherwise you will not be
ab le to s tart the engine aga in once yo u stop it.
The AdBlue must be refilled when the amount in
the tank has reached the minimum level
¢ page 327, Preparation.
Incorrect filling /system ma lfunction
A message appears if the Ad Blue tank was filled
with a fluid other than AdBlue and the system
has detected that the tank was f illed incor rectly,
or if there is a system malfunction .
II Ad Blue: malfunct ion ! No engine start in
x mi (km ). Se e owner's manual
This message appears when it is only possible to
drive the d istance ind icated in the instrument
cluster . Drive to the nearest author ized Audi
dealer o r authorized Aud i Serv ice Facility to have
the malfunction corrected . Otherwise the engine
w ill not start again if you stop it once the d is­
tance indicated has been dr iven .
• Ad B lu e: malfunction! No engine start poss i­
ble . See owner' s manual
This message appears if the system has detected
that the tank was filled incorrectly or that there
is a malfunction . Drive immediately to the near ­
est autho rized Aud i dea ler or authorized Aud i
Service Facility to have the malfunction correct­
ed. Othe rwise you will not be able to start the en­
g ine again once you stop i t.
Checking and Filling
Preparation
Applies to: vehicles with selective cata lytic reduction
Fig. 272 R ight rear s ide o f th e ve hicle: removing t he Ad Bl­
u e cap
The Ad Blue tank ope ning is located near the d ie­
se l tank opening. Add at least the amount of
AdB lue shown in the instrument cluster display.
This is the minimum amount required to ensure
the system detects the refilling and to start the
engine. You can add a maximum of 6.3 gallons
(24 L).
Requirement: the request to add Ad Bl ue must
appear in the instrument cluster display.
.. Switch t he ignit ion off .
.. Open the tank filler door¢ page 324 .
.. Turn the ta nk filler neck cap to the left to re­
move
¢fig . 272.
.. Refill Ad Blue us ing a pump noz zle ¢ page 328,
a canister ¢ page 328 or a bott le ¢ page 328 .
A WARNING ,~ -Ad B lue can irritate the s kin, eyes and respira­
tory sys tem.
If th ere is contact with t he flu id,
flus h immed iate ly w ith plenty of wa ter. Con­
su lt a phys icia n if necessary .
(D Note
- Only use Ad Blue that conforms to the
standard ISO 22241-1. Do not m ix any addi­
tives with the Ad Blue and do not dilu te it
w ith wate r.
- Do not add AdBl ue to the diesel tank or add
diese l fuel to t he A d Bl ue tank. Do not s tart
t he engine un de r any c ircumst ances if th e
wrong fuel is filled in the tan k. There is a
327

Checking and Filling
risk of damaging the fuel tank system and
the engine. See an authorized Audi dealer or
authorized Audi Service Facility for assis­
tance.
- Ad Blue 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 refill bottles or canisters per­
manently in the vehicle. If the container
leaks, the escaping AdBlue could damage
the vehicle interior.
- Do not allow AdBlue 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 using a pump
Applies to: veh icles with selective catalyt ic reduction
.,. Open the tank filler door c::> page 324, fig. 268.
.,. T urn the tank filler neck cap to the left to re­
move
c::> page 327 , fig . 272.
.,. Refill Ad Blue until the pump noz zle switches
off for the first time
c::> (D .
.,. Close the filler neck . c::> page 329, Completing
AdBlue refill
(fl Note
- The pump nozzle handle must be pointing downward when filling. Otherwise the pump nozzle will not switch off automati­
cally
c::> Q) in Preparation on page 32 7.
- Do not continue filling once the pump noz­
zle automatically switches off for the first
time. The AdBlue tank system could be
overfilled and leak Ad Blue
c::>(D in Prepara­
tion on page 327.
328
Refilling AdBlue using a canister
Applies to: vehicles with selective cata lytic reduction
®
+®
Fig. 273 Caniste r w ith attachable hose
.,. Remove the cover from the refill canis ter c::> A
in Preparation on page 3 27, c::>(D in Prepara ­
tion on page 32
7 .
.,. Secure the end of the hose (D on the opening in
the canister @by turning the hose to the right.
.,. Remove the cap@from the other end of the
hose @ .
.,. Position the end of the hose @on the filler
neck in the vehicle and turn the hose to the
right to tighten it .
.,. Lift th@ 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 tube
c::> page 329, Completing AdBlue refill .
(D Note
Only use refill canisters that are approved for
your vehicle. Using other systems can cause Ad Blue to leak .
(D Tips
-An authorized Audi dealer or authorized
Audi repair facility can tell you which refill
canisters are approved for your vehicle .
- A permitted refill canister contains approxi­
mately 1.3 gallons (5 liters) of Ad Blue.
Refilling AdBlue using a bottle
Applies to: vehicles with selective catalytic reduction
.,. Remove the cap from the refill bottle c::> A in
Preparation on page 327,
c::> (D in Preparation
on page 327.
..,.

<( a, .... N ,....
N .... 0 \0
3 a,
• Position the bottle on the filler tube and turn
the bottle clockwise unti l it stops turning.
• Press lightly against the bottom of the bottle
to empty it. Continue pressing the bottom of
the bottle until it is empty or until f luid stops
flowing into the tank .
• Remove the bottle and seal the filler neck
~ page 329, Completing AdBlue refill .
(D Note
Only use refill bottles that are approved for
your veh icle. Us ing other systems can cause
Ad Blue to leak.
-You can obta in refill bottles from an author­
i zed Audi dealer or author ized Audi Service
Fac ility.
- A perm itted refill bottle contains approxi­
mately 0.5 gallon ( 1.9 liters) of Ad B lue.
Completing AdBlue refill
Applies to: vehicles with selective catalytic reduction
Closing th e filler neck
• Turn the Ad Blue cap to the right on the filler
tube u ntil the cap clicks into p lace
c;> .&. in
Preparation on page 32
7, c;> (Din Preparation
on page 327 ..
• Then press on the left side of the tank door un -
ti l it latches.
After filling
The vehicle must be driven so that the system
recognizes t hat the Ad Bl ue was refilled. This can
take severa l min utes .
• If there was no Ad Blue left in the tank and a
range of O mi (0 km) was shown in the display ,
switch the ign ition on for about 3 0 seconds be­
f ore star ting the engine .
(D Tips
Ad Blue in the tank can free ze at very low tem­
pe ra tures. If this happens, the system will
no t detect t hat the Ad Bl ue was refilled and i t
wi ll continue to inform you of the low Ad Blue
Ch eck ing and Filling
level. The message t urns off as soon as the
tank thaws out again .
Emissions control
systems
Catalytic con verter
Applies to: vehicles with gasoline engines
T he vehicle may only be driven with un leaded
gasoline, otherwise the catalytic converter will be
destroyed.
Never drive until the tank is compl ete ly empty .
The irregu lar supply of fuel that resu lts from that
can cause eng ine misfires. Uncombusted fuel will
enter the exhaust system, which can cause over­
heating and damage to the catalytic converter .
Diesel particulate filt er
Applies to: vehicles with diesel engines
The diese l particu late filter filters near ly all of
the soot particles out of the exhaust. The filter
cleans itself automatically under norma l driving
condit ions. If the filter cannot clean itself (for ex­
ample, because you are only driving short distan ­
ces), the filter becomes clogged with soot and
the
1\1 i ndicato r light for the diese l part iculate
filte r tu rns on
c;> page 33.
_& WARNING
The tempera ture of the exhaus t sys tem is
high, bot h when driv ing and a fter stoppi ng
the engine.
- Never tou ch the e xhaust tail pipes once they
have become hot. This cou ld res ult in burns .
- Do not par k your veh icle over flamm ab le
materia ls such as grass or leaves because
the high temperature of the emissions con­ trol system (catalytic converter or diesel particu late filter) cou ld start a fire.
-Do not app ly underbody protectant in the
exhaust system area, beca use this increases
the risk of f ire.
329