2018 AUDI A5 COUPE engine oil

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fill up at busy gas stations where the seasonal
adjustment is more likely to be made in time .
(D Note
-Methanol f uels which do not mee t these re­
quirements may ca use corrosion and dam­
age to plastic and rubber components in the
fuel system.
-Do not use fuels that fai l 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 identif ied.
-Fuel system damage and performance prob­
l ems resulting from the use of fue ls differ­
ent from those specified are not the respon­
s ibility of Audi and are not covered under
the New Veh icle or the Emiss ion Control
System Wa rrant ies.
-If you experience a loss of fue l economy or
driveability and performance problems due
to the use of one of these fuel b lends, we
recommend that you switch to unblended
fuel.
Gasoline additives
Applies to: vehicles with gasol ine engine
A majo r concern among many auto manufactur ­
ers is carbon deposit build-up caused by the type
of gasoline you use.
A lthough gasoline grades d iffer from one manu­
facturer to another, they have cer tain things in
common . A ll gasoline grades contain substances
that can cause deposits to collect on vita l engine
parts, such as fue l 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 informat ion on TOP TIER Deter­
gent Gasoline, please go to the official website (www.toptiergas .com) .
Check ing and Filling
After an extended period o f using inadeq uate
fuels, bui lt-up ca rbon deposits can rob your en­
gine of peak performance.
(D Note
- Damage or malfunction d ue to poor f uel
quality is no t covered by the Audi New Veh i­
cle Lim ited Warranty .
- Do not add af termarket fuel addi tive prod­
u cts to your fue l tank.
Diesel fuel
Applies to: vehicles with diesel engine
Always use U LSD (Ult ra Low Sulfur Diesel) No. 2.
T he ULSD No. 2 meets the AS TM 0975.
D iesel fuel w ith concentrations of b iod iesel h igh­
er than 5
% such as Bl 1, B20 or B100 are st rict ly
prohib ited.
Service station fuel pumps are labeled with the
cor rect fuel i nformation for easy recogn ition by
the user. If the d iesel fue l pump is not labeled
as k t he station operator wha t fuel is being dis­
pensed before fill ing up your vehi cle.
U LSD No . 2 may not be ava ilable outside the USA
and Canada. Be su re to check befo re t raveling to
othe r countr ies.
ULSD No . 2 can become thicker in very cold tem­
peratures, and th is can impa ir the engine's start­
ing and runn ing . Depend ing o n the season, gas
stations provide ULS D No. 2 that flows be tte r in
cold te mpe ra tures so that you can conti nue ope r­
at ing your vehicle as usual.
(D Note
- Yo ur vehicle's diese l eng ine w as designed
so ley for use w ith ULS D No. 2. Therefo re,
never use gasoline, heating oil, other fuels
or flow improvers. These contain s ubstances
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
..,_
323

,&_ WAR NING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and reproduct ive harm. In addition, certain flu­
ids contained in vehicles and certain prod­
ucts of component wear contain or emit
chem icals known to the State of California
to cause cancer and birth defects or other reproduct ive harm.
- Battery posts, terminals and related acces­ sories contain lead and lead compounds,
chem icals known to the State of California
to cause cancer and reproduct ive harms.
Wash hands after handling.
(D Note
When filling flu ids, be sure not to mix the flu­
ids up . Otherwise severe ma lf u nctions and en­
gine damage w ill occur.
@) For the sake of the environment
You shou ld regularly check the ground under
your vehicle in o rder to detect leaks qu ickly .
If
there a re visible spots from oil or other fluids,
bring your vehicle to an authorized Aud i dea l­
er or authorized Audi Service Facility to be
checked.
Opening and closing the hood
The hood is released from inside the vehicle.
Fig. 274 Driver footwell: release leve r
Checki ng an d Fill in g
Fig. 275 Unlocked hood : lever
Make sure the wiper arms are not raised up from
the windshield. Otherwise the paint could be damaged .
Opening the hood
" With the driver's doo r open, pull the lever be­
low the instrument panel in the direction of the
arrow
r:;, fig . 2 7 4.
" Ra ise the hood slightly ¢.&_ .
"Press the lever ¢ fig. 275 in the direct ion of the
arrow. This releases the hooks .
"Open the hood .
Closing the hood
" Push the hood down until you override the
force of the str uts.
" Let the hood fall lightly into the latch . Do not
press it
in. ¢ .&_ .
A WARNING ,..___
-Never open the hood when there is steam or
coo lant escaping from the engine compart ­
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
- For safety reasons, the hood must always be
closed securely while driv ing. Because of
this, always check the hood after closing it
to make sure it is latched correctly . The
hood is latched if the front corners cannot
be lifted.
- I f you notice that the hood is not latched
while you are d riving, s top immed iately and
close it, because driving when the hood is not latched increases the r isk of an accident . .._
331

Checking and Filling
-If the hood is not latched completely, it
could fly up while you are driving and ob­
struct your vision.
Engine compartment overview
The most important check points.
Fig. 276 Typ ical location of the reservoir and the engine o il filler o penin g
@ Washer fluid reservoir (W) c:> page 339
@ Jump start po int( +) under a cover,(-) w ith
hex head sc rew
c:> page 339 c:> page 381
@ Engine oil filling open ing ( page 334
© Eng ine oil label* w ith VW standard
c:> page332
® Coolant expansion tank (- L) c:> page 336
® Brake fluid reservoir ((0)) c:> page 33 7
The location of the engine oil fill ing opening and
the coolant expansion tank
c:> fig. 2 76 (items @
and@) may differ depending on the engine ver­
sion .
332
8,_ WARNING
Read and follow all WARNINGS befo re check­
ing anything in the engine compartment
c:>page330.
Engine oil
Engine oil specifications
The engine oil used must conform to exact speci ­
fications.
The serv ice interval d isplay i n the instrumen t
clus ter o f your veh icle will inform you when it is
time for an o il change . We recommend that you
have your oi l changed by an author ized Audi Serv-
ice Advisor.
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If you must add oil between oil changes, use an
oil that matches the Audi oil quality standard listed on the st icker. The sticker is located at the
front of the engine compartment
c> page 332,
fig . 276.
Audi re comm end s
Ocastrot /[g/j;t{E'g Frtw.::<.. ·-:dr,,JA.L
A ud i recommends Longlife h igh perform ance
e ngin e oil from Audi Genui ne Part s
Using the proper engine oil is important for the
functionality and service life of the eng ine. Your
engine was factory -filled with a high-quality oil
which can usua lly be used throughout the entire
yea r.
Note
Your Limited New Vehicle Warranty does not
cover damage o r malfunctions due to failure
to follow recommended maintenance and use requirements as set fo rth in the Aud i Owner's
Manual and Warranty
& Maintenance booklet.
- Use only a high q ual ity eng ine oil that ex-
pressly complies with the Aud i oil q uality
standard specified for your vehi cle's engine .
Using any other oil can cause serious engine
damage .
- Do not mix any l ubricants o r other additives
into the engine oil. Doing so can cause en­
gine damage.
(D Tips
If you need to add oil and there is none availa ­
b le that meets the Audi oil quality standard
your eng ine requires, you may add a total of
no more than 0.5 qt (0.5 l) of a h igh-quality
"synthet ic" o il that meets the following speci­
fications .
- Vehicles with gasoline eng ine: ACEA A3 or
API SM with a viscosity grade of SAE OW-30,
SAE 5W -30 or SAE 5W-40 .
- Vehicles with d iesel eng ine : ACEA C3 or
API CF with a v iscosity grade of SAE OW-30
or SAE 5W -30 .
- For more information about engine o il that
has been approved for your vehicle, please
contact e ither you r authorized Audi dea le r
or A udi C ustome r Relat ions at
Ch eck ing and Filling
1 (800) 822 -2834 or visit our web site at
www.audiusa .com or www .audicanada .ca.
Engine oil consumption
The engin e in your v ehicl e dep ends on an ad e­
quat e amount of oil to lubricate and cool all of
its moving parts.
In order to provide effect ive lub rication and cool­
ing of inte rnal engine components, all inte rnal
combustion engines consume a certain amount
of oil. Oil consumption varies from eng ine to en­
gine and may change significantly over the life of
the engine. Typ ically, engines w ith a specified
break -in period (see
c> page 86) consume more
o il dur ing the break-in per iod than they consume
after oil consumption has stabilized .
Under normal cond itions, the rate of oil con­
sumption depends on the qua lity and viscos ity of
the oil, the RPM (revolutions per m inute) at
which the engine is operated, the amb ient tem­
perature and road condi tions. Further facto rs a re
the amo unt of oil di lution from water co ndensa­
tion or fue l resid ue a nd the oxidation level of the
oi l. As any engine is subject to wear as mileage
builds up, the oi l consumption may increase ove r
time unt il replacement of worn components may
become necessary.
With a ll these variab les coming into play, no
standard rate of oi l consumption can be estab­
lished or spec ified . There is no alternative to reg­
ular and frequent checking of the oi l level, see
Note .
If the y ellow engine oil leve l warning symbo l Bl
in the instrument cluster lights up, you should
check the o il level as soon as possible
c> page 334. Top off the o il at your earliest con­
venience
c> page 334 .
A WARNING
--Before you check anyth ing in the eng ine com-
partment, always read and heed all WARN­
I NGS
c> .&. in Working in the engine compart-
ment on
p~e 330. ~
333

Check ing and F illing
CJ) Note
Driving with an insufficient oil level is likely to
cause severe damage to the engine .
@ Tips
-The oil pressure warn ing display. i s not
an ind icato r of the oil l evel. Do not rel y on
it. In stead , che ck th e oil le vel in your e n­
gi ne a t regul ar int ervals, prefe rably e ach
t ime you re fuel , and al ways befo re go ing
on a long trip .
-If you have the impression your engine con­
sumes excessive amounts of oil, we recom­
mend that you consult an authorized Aud i
dealer to have the cause of your concern properly d iagnosed . Keep in mind that the
accurate measurement of oil consumpt ion
r equi res great ca re and may take some
time. An authorized Audi dealer has instruc­
tions about how to measure oil consump­
tion accurately.
Checking the engine oil level and adding
engine oil
The engine oil level can be checked in the Info­
t ainmen t sys tem
F ig . 277 Engin e co mpartme nt: e ngine o il fille r ope ning
c ove r
Checking th e engine oil l evel
-Park t he vehicle on a leve l surface .
-Sh ut the engine off when it is warm.
0 N
-N
>< (X) IX)
-Switc h only the ignition back on. Wa it approxi-
mately two minutes so that the engine oil can
flow back into the oil pan.
334
-Select in the Infotainment system: the ! MENUI
button > V ehicle > l eft control button > Se rvice
& ch ec ks > Oil level.
-Check the oil level in the Infotainment system
disp lay . Add engine oi l if the bar in the oil level
indicator is just before
"m in".
Adding engine oil
Fo llow the safety precautions r:';> Li::. in Working in
the engine compartment on page 330.
-Stop the engine and open the hood
<:';> page 331 .
-Unscrew the cap 9=;,1 on the engine oi l filling
open ing
r:';> fig. 277, <:';>page 332.
-Carefully add 0.5 quart (0.5 liter) of the correct
oil
r:';> page 332 .
-Close the eng ine oil filler opening cap.
-Close the hood, restart the ignit ion after two
m inutes and read the current o il level in the In ­
fotainment system.
&_ WARNING
-When adding oil, do not let oil dr ip onto hot
engine components.
This i nc reases the risk
of afire.
-You must secure the cap on the oil fi ller
open ing correctly so that oil does not leak
ou t onto the ho t engine and exhaust system
when the engine is running, beca use this is
a fire hazard .
- Always clean skin thoroughly if it comes into
contact with engine oil.
(D Note
-The engine o il level must not be under the
" min" marking, because this incre ases the
risk of engine damage.
-If the message II Pl ea se redu ce oil lev el
appears, there is too much oil in the eng ine
and there is a risk of damaging the cata lytic
converter and engine. Do not start the en­
gine . Contact an authorized A udi dealer or
authorized Audi Service Fac ility to have ex­
cess engine o il extracted if necessary .
- Do not mix any add it iona l lubricants into
the engine oil. Damage caused by such add i­
t ives is not covered by the warranty.
...

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@ For the sa ke of the env ironment
- Oil should never enter the sewer system or
come into contact with the ground.
- Pay attention to legal requirements when
disposing of empty oil containers.
(D Tips
- The oil level indicator in the display is only
an informational disp lay. If the oil leve l is
too low, a minimum oil warning appears in
the instrument cluster. Add oil and close
the hood. The current oil level is displayed in the instrument cluster the next time the
ignition is switched on .
- The engine oil consumption may be up to
0.5 quart/600 miles (0.5 liter/1,000 km),
depend ing o n driving style and operating
cond itions. Consumption may be higher
during the first 3,000 miles (5,000 km). Be­
ca use of th is, the engine oil level m ust be
checked regularly.
It would be best to check
each time you ref uel your vehicle and before
l ong drives.
Changing the engine oil
We recommend that hove your oil changed by an
authorized Audi dealer or a qualified service sta­ tion .
Before you check anyth ing in the engine compart­
ment,
al ways r ead and h eed all WARNIN GS~ &
in Working in the engine compartment on
page 330.
The engine oil must be changed according to the
intervals specified in your Warranty
& Mainte­
nance booklet . This is very important because the
lubricating properties of oil diminish gradually
during normal vehicle use.
Under some circumstances the engine oi l should
be changed more frequently. Change oil more of­
ten if yo u drive mostly short distances, operate
the vehicle in dusty areas or under predominant ly
stop-and-go traffic condit ions, or have your vehi­
cle where temperatures remain below freezing
for extended periods .
Check ing and Filling
Detergent additives in the oi l will make fresh oil
look dark after the engine has been running for a
short time . This is normal and is not a reason to
change the oi l more often than recommended.
Because of the problem of proper disposal, along
with the specia l tools and necessary expertise re­
quired, we strongly recommend that you have
your o il changed by an authorized
Audi de aler or
a qual ified service stat ion.
If yo u choo se to ch ange your oil yo urself , please
note the following important information:
A WARNING "--
To reduce the risk of persona l injury if you
must change the eng ine oil in your vehicle
yourself:
- Wear eye protection.
-
-To reduce the r isk of burns from hot engine
oil, let the engine cool down to the touch.
- When removing the oil drain plug w ith your
f ingers, stay as far away as possible. Always
keep your forearm parallel to the ground to
help prevent hot oil from running down your
arm.
- Drain the oil into a container designed for
this purpose, one large enough to hold at least the tota l amount of oil in your engine.
- Engine oil is poisonous. Keep it well out of
the reach of children.
- Continuous contact with used engine o il is
harmful to your skin. Always protect your
skin by washing oil off thoroughly with soap
and water .
«I) Note
Never mix oil additives with your engine oil.
These additives can damage your engine and
adversely affect yo ur Audi limited New Vehi­
cle Warranty .
@ For the sake of the environment
-Before chang ing your oil, first make sure
you know where you can properly d ispose of
the used oil.
- Always dispose of used engine o il properly .
Do not dump it on garden soil, wooded
3 35

Checking and Filling
areas, into open streams or down sewage
drains.
- Recycle used engine oil by taking it to a used
engine oil collection facility in your area, or
contact a service station .
Cooling system
Coolant
The engine cooling system is filled with a mixture
of pur ified water and coolant addit ive at the fa c­
tory . T his coolant must not be not changed.
The coolant leve l is monitored through
the . in­
d icator
light ~ page 30. Howeve r, we do recom­
mend occasionally check ing the coo lant level
manually.
I f you must add coolant , use a m ixt ure of water
a nd coolant addit ive. M ixing the coolant additive
with d istilled water is recommended .
Coolant additive
The coolant addit ive is made of anti-freez ing and
corros ion protection agents . Only use the fo llow­
ing coolant add it ives . These additives may be
mixed w ith each other.
Coolant additive Specification
G13
TL 774)
G12++ TL
774 G
The amount of coo lant additive that needs to be
mixed with water depends on the climate where
the vehicle will be operated . If the coolant addi­
tive percentage is too low, the coolant can free ze
and damage the eng ine.
Coolant Freeze protec-
tion
additive
Warm m in .40% m in . - 13 °F
reg io ns (-25 °C)
max. 45%
Cold min
. 50% max. -40 °F
reg ions (-40 °C)
max . 55%
336
(D Note
- Before the start of winter, have an a uthor­
ized Aud i dea ler or a uthorized Audi Service
Facility check if the coo lant add itive in your
vehicle matches the pe rcentage appropr iate
for the climate. This is especially important
when drivi ng i n colder climates .
- If the appropriate coo lant additive is not
available in an emergency, do not add any
ot her additive. Yo u could damage the en­
gine. If this happens, only use wa ter and re­
s tore the correct m ix tur e ratio wi th the
specifie d coo lant ad ditive as soon as poss i­
ble.
- Onl y refill with new coolan t.
- Radiator sealant must not be mixed with
the coolant.
Adding coolant
Fig. 278 Engine compa rtment: release butto n on coo lant
expansion ta n k
Observe the safety precautions ~ A in Working
in the engine comportment on page 330.
Checking the engine coolant level
.,. Park the vehicle on a level surface .
.,. Switch the ignit io n off.
.,. Read the coolant level on the coolant expansion
tank
¢ fig. 278 .
.,. The coolant leve l must be between the MIN and
MAX markings when the engine in cold. When
the engine is warm it can be slightly above the MAX marking .
Adding coolant
.,. Let the engine cool down.

.. Place a cloth over the coolant expansion tank
cap .
.. Push the release button ¢ fig. 2 78 and careful­
ly unscrew the cap to the left until you feel re­
sistance¢ &_ .
.. Push the release button again and remove the
cap completely .
.. Make sure that the fluid level remains stable .
Add more coolant if necessary .
.,. Turn the cap to the right to secure it until yo u
feel resistance a second time.
Coolant loss usually indicates there is a leak . Im­
mediately drive your vehicle to an authorized
Audi dealer or authorized Aud i Serv ice Facility
and have the cooling system inspected. If the
cooling system is not leaking, a loss can come
from the coolant boiling through overheating
and being pushed out of the cooling system.
A WARNING
- The cooling system is under pressure. Do
not open the coolant expansion tank cap
when the engine is hot. This increases the
risk of burns .
-The coolant additive and the coolant can be
dangerous to your health . For this reason,
keep the coolant in the original container
and away from children. There is a risk of
poisoning.
-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 injury.
CD Note
Do not add coolant if the expansion tank is
empty. There may be air i n the cooling sys­
tem, which increases the risk of engine dam­
age . If this is the case, do not continue driv­
ing . See an authorized Audi dea ler or author­
ized Aud i Service Facility for assistance.
Checking and Filling
Brake fluid
Fig. 279 E ng in e compartment : cap on brake fluid reservo ir
Observe the safety precautions ¢&. in Working
in the engine compartment on page 330 .
Checking the brake fluid level
... Read the brake fluid level on the brake fluid
reservoir¢ page 332, fig . 276 . The brake fluid
level must be between the MIN and MAX mark­
ings¢_.&. .
The brake fluid level is monitored automatically.
Changing the brake fluid
Have the brake fluid changed regularly by an au­
thorized Audi dealer or authorized Audi Service Facility.
A WARNING
- If the brake flu id level is below the MIN
marking, it can impair the brak ing effect
and driving safety, wh ich increase the risk of
an accident. Do not continue dr iving . See an
authorized Audi dealer or authorized Audi
Serv ice Facility for assistance.
-If the brake fluid is old, bubbles may form
in the brake system dur ing heavy braking.
This would impair braking performance and
driving safety, which increases the risk of an
accident.
-To ensure the brake system functions cor­
rectly, only use brake fluids that comp ly
with VW standard 501 14 or FMVSS-116 DOT 4.
CD Note
-If the brake flu id l eve l is above the MAX
marking, brake fluid may leak out over the
337