2018 AUDI A5 COUPE coolant level

Cockpit over view
There is not enough braking force to hold the ve­
hicle in place . The brakes have overheated. The
veh icle cou ld ro ll away even on a small incline .
Ill (U SA mod els)/ lC@j (C an ad a model s) Parking
brake : applied
If th is message appears, press the brake pedal
fi rst a nd the n release the pa rk ing bra ke if neces­
sary.
II ( U SA model s)/ l(@j (Canada mo dels) Parking
brak e: emerg ency braking
The emergency braking function was triggered .
Please rele ase park ing b rake
Release the par king brake if t his message ap ­
pears.
Plea se pr ess brak e pedal to rel ease parking
brak e
To release the park ing brake, press the brake
pedal and press
the ~ button at the same time,
or start driv ing with hill start ass ist
9 page 95,
Starting to drive.
(D Tips
For add it ional information on the park ing
brake, see
9 page 94.
-L Cooling system
• Turn off engin e and che ck co ola nt level. See
o w ner 's manual
The coolant leve l is too low.
Do not cont inue driving and switch the engine
off . Check the coolant level
9 page 336.
- If the coolant level is too low, add coolant
9 page 336. On ly cont inue driving once the in­
dicator light turns off .
• Coolant t emper atu re: too high. Let e ngi ne
run with vehicle st ationar y
Let the eng ine run at id le for a few minutes to
coo l off, until the indicator light turns off .
- If the indicato r ligh t does not turn off, do not
contin ue driving the vehicle. See an au thorized
30
Audi dea ler or authorized Audi Service Facility
for assistance.
A WARNING
- Never open the hood if you can see or hear
steam or coolant escaping from the engine
compartment. This increases the risk of burns. Wait until you no longer see or hear
steam or coolant escaping .
- The engine compartment in any vehicle can
be a dange rous area . Stop the engine and
allow it to cool befo re working in the engine
compa rtment. Always follow the informa­
tion fo und in
9 page 330, Working in the
engine compartment .
(D Note
Do not continue driv ing if the . indicator
li ght turns on as this increases the risk of en­
gine damage.
~ Safety belt
The . indicator light stays on until the dr iver's
and front passenger's safety belts are fastened.
Above a certain speed, there will a lso be a warn­
i ng tone.
(D Tips
For additional informat ion on safety belts,
see
Q page 268.
0 Generator/Vehicle battery
If the . or(•) indicator light turns on, there is a
malfunction in the generator or the vehicle e lec­
trical system .
• Electrical sy stem: malfunction! Saf ely stop
v ehicle
Do not continue dr iving and switch the engine
off. See an authorized Audi dealer or autho rized
Audi Service Facility for assistance.
(•j Ele ctri cal system: m alfunc tion! Re sta rt not
po ssible. Plea se cont act Ser vice
The vehicle battery was disconnected from the
vehicle e lectr ica l system and will no longer

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

Consumer Info rmation
today's a utomo biles, have steadily reduced the
scope of maintenance and repairs which can be
carried out by veh icle owners.
Also , sa fet y and
en vironmental
concerns place very strict limits
on the nature of repairs and adjustmen ts to en­
g ine and transmission parts wh ich an owner can
perform .
Maintenance, adjustments and repairs usually re­
qu ire special tools, testing devices and other
equ ipment available to specially trained work ­
shop personnel in order to assure proper per­
forma nce, re liability and safety of the veh icle and
its many systems .
Improper maintenance, adjustments and repairs
can impair the operation and reliab ility of your
ve hicle and eve n void your vehicle warranty .
Therefo re, proof of se rvicing in a ccordance w ith
the m aintenance sched ule may be a condition for
up ho ld ing a possible wa rranty claim made within
the wa rranty pe riod.
Above all , ope rational safety can be adversely af­
fected, cre ating unne cessa ry risks fo r you and
your passengers.
I f in doubt about any servicing, have it done by
your author ized Audi dealer or any other properly
eq uipped and qualified workshop . We strongly
urge you to g ive your author ized Audi dealer the
opportunity to perform a ll scheduled mainte ­
nance and necessa ry repairs. Your dealer has the
facilities, origina l parts and tra ined specialists to
keep your veh icle runn ing prope rly.
Performing limited maintenance yourself
The fo llow ing pages describe a limited number of
procedures whic h can be performed on your vehi­
cle with ordinary tools, should the need arise and
tra ined personnel be unava ilable. Before per­
forming any of these procedures, always thor­
ough ly read all of the app licab le text and carefu l­
ly follow the instructions g iven . A lways rigorously
observe the
WARNINGS prov ided .
Befo re yo u check anything in the engine com ­
partment, always read and heed all WARNINGS
c::> & and c::> & in Working in the engine compart­
ment on page 330 .
390
A WARNING
-
-Ser ious personal in jury may occur as a result
of imp roperly performed maintenance, ad­
justments or repairs .
- Always be extreme ly careful when work ing
on the vehicle . Always follow commonly ac­
cepted safety practices and general com­ mon sense. Never r is k personal in jury.
- Do not attempt any of the mainte nance,
checks or repairs described on the following pages if you are no t fu lly fam iliar with these
or other proce dures with respect to the ve­
hicle, o r are uncert ain how to p ro ceed.
- Do not do any work wi thout the prope r tools
a nd equi pmen t. H ave the necess ary wo rk
done by your authorized Au di dealer or an ­
other properly equipped and qualified work­
shop.
- The engine compartment of any motor veh i­
cle is a potentially hazardous area . Never
reach into the a rea around or touch the radi­
ator fan. It is temperature controlled and
can switch on suddenly - even when the en­
gine is off and the ignition key has been re­
moved. The rad iator fan switches on auto­
mat ica lly when the coolant reaches a certain
temperature and will con tinue to ru n until
the coolant temperat ure drops.
- Always remove the igni tion key before any­
one gets u nder the vehicle.
- Always support your vehicle with safety
stands if it is necessary to work underneath
the vehicle. The ja ck* s upplied w ith the vehi­
cle is no t ad equate fo r thi s pu rpose and
could collapse causing se rious personal in ­
jury .
- If you must wor k underne ath the vehicle
with the wheels on t he ground, always make
sure the vehicle is on level ground, that the
wheels a re always sec urely blocked and that
the engine cannot be started.
- Always make sure the transmission se lector
lever (automatic t ransm iss ion) is in P (Park
position) and the park b rake is applied.

<( a, .... N ..... N .... 0 \0
3 a,
Emergency starting . . . . . . . . . . . . . . . . . . . 381
Emissions control system . . . . . . . . . . . . . . 329
Energy management . . . . . . . . . . . . . . . . . . 155
E ng ine
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Start/Stop system . . . . . . . . . . . . . . . . . . . . 91
Starting/stopping . . . . . . . . . . . . . . . . . . . . 89
Starting with jumper cables . . . . . . . . . . . 381
E ng ine compartment . . . . . . . . . . . . . . . . . . 330
Opening and closing the hood . . . . . . . . . . 331
Safety precautions . . . . . . . . . . . . . . . . . . . 330
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
Adding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Checking the oil level . . . . . . . . . . . . . . . . . 334
Consumption . . . . . . . . . . . . . . . . . . . . . . . 334
Dipstick . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Oil consumption . . . . . . . . . . . . . . . . . . . . . 333
Specification and viscosity . . . . . . . . . . . . . 332
Temperature display . . . . . . . . . . . . . . . . . . 11
Engine sound . . . . . . . . . . . . . . . . . . . . . . . . 139
Engine Start/Stop mode
refer to Start/Stop system . . . . . . . . . . . . . 93
Entering character s/numbers ( speller) . . . . 165
Entering letters (speller) . . . . . . . . . . . . . . . 165
Entertainment sliding menu . . . . . . . . . . . . 163
E ntry/exit lighting . . . . . . . . . . . . . . . . . . . . . 63
E ntry assistance
refer to Seats . . . . . . . . . . . . . . . . . . . . . 71, 72
Environment Proper disposal of drained engine oil . . . . 335
Unleaded fuel . . . . . . . . . . . . . . . . . . . . . . . 322
ESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Sport mode . . . . . . . . . . . . . . . . . . . . . . . . 152
Evasive steering support . . . . . . . . . . . . . . . 126
Event Data Recorder (EDR) . . . . . . . . . . . . . 156
Expanded view . . . . . . . . . . . . . . . . . . . . . . . . 15
Exterior lighting . . . . . . . . . . . . . . . . . . . . . . . 61
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . . 65
External voice operation . . . . . . . . . . . . . . . . 176
F
Factory default settings
Multi Media Interface . . . . . . . . . . . . . . . . 252
Fader (sound) . . . . . . . . . . . . . . . . . . . . . . . . 255
Index
Fastening
Booster seats . . . . . . . . . . . . . . . . . . . . . . . 312
Convertible child safety seats . . . . . . . . . . 310
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 308
Fast forwarding/rewind ing (audio/video
file) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Fast forwarding (audio/video file) . . . . . . . . 239
Fast route 214
Favorites Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . 209
Telephone. . . . . . . . . . . . . . . . . . . . . . . . . . 183
File formats (med ia drives) . . . . . . . . . . . . . 245
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . . . 263
For the sake of the environment Environmentally-friendly driving . . . . . . . . 86
Fueling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Leaks..... .... .. .. ................. 331
Warming up the engine . . . . . . . . . . . . . . . . 89
Free text search . . . . . . . . . . . . . . . . . . . . . . 167
Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Nav igation . . . . . . . . . . . . . . . . . . . . . . . . . 208
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Telephone. . . . . . . . . . . . . . . . . . . . . . . . . . 187
Freeze protection
Coo lant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Frequency band . . . . . . . . . . . . . . . . . . 225, 228
Front airbags
Description . . . . . . . . . . . . . . . . . . . . . . . . . 281
How they work . . . . . . . . . . . . . . . . . . . . . . 287
Frontal collisions and the laws of physics . . 269
Front passenger's door emergency locking . . 42
Front seats
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Child restraints in the front seat . . . . . . . . 278
also refer to Seats . . . . . . . . . . . . . . . . . 71 , 72
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
B lended gasoline . . . . . . . . . . . . . . . . . . . . 322
Current consumption . . . . . . . . . . . . . . . . . . 17
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Fuel filler neck . . . . . . . . . . . . . . . . . . . . . . 324
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . 10, 12
Fuel tank capacity . . . . . . . . . . . . . . . . . . . 388
Gasoli ne . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Gasoline addit ives . . . . . . . . . . . . . . . . . . . 323
397