cooling AUDI A5 COUPE 2018 User Guide

Check ing and F illing
Engine compartment
Working in the engine compartment
Special care is required if you are working in the
engine compartment
Fo r wo rk in th e engine compa rtmen t, s uch as
c h ec kin g and filli ng flu id s, th ere is a risk of in­
j u ry, sc aldin g, ac cide nts, a nd b urn s. For this
rea son, foll ow all the warning s and gener al
s a fe ty p recaution s pr ov ided in the f ollow ing in·
f o rm ation . Th e en gine c omp artmen t is a dan ­
ger ous are a.
q ,&.
_& WARNING
- T urn the engine off.
- Switch the ign ition off .
- Set the parking brake .
- Shift the gearshift lever to neutral in vehicles with a manual transm ission and se­
lect the P selecto r lever pos ition in vehicles
with an automatic transmission.
- Let the engine coo l down .
- Never open the hood when there is steam or coolant escaping from the eng ine compart­
ment, because there is a risk that you cou ld
be burned. Wait until no steam or coolant is
escaping.
- Keep ch ildren away from the engine com­
partment.
- Never spill f lu ids on a hot engine. These flu­
ids (such as the anti-freezing agent con­
ta ined in the coolant) can ignite .
- Avoid sho rt circu its in the electrical system.
- Whe n working in the engine compartment ,
remember that the rad iator fan can sw itch
on even if the ign ition is switched off, which
increases the risk of in jury.
- Never open the cap on the coolant expan­
sion tank when the eng ine is warm. The
cooling system is under pressure.
- T o protect your face, hands, and arms from
hot steam or coolant, cove r the cap with a
large cloth when opening .
- Do not remove the engine cover under any
c ircumstances. This increases the risk of
burns .
330
-If tests need to be performed with the en­
gine running, there is add itiona l danger due
to mov ing components (such as the r ibbed
belt, alternator and rad iator fan) and from
the high-voltage ignition system .
- Do not under any circumstances activate the
throttle inadvertently (for example, by hand
from the engine compartment) if the veh i­
cle is stat ionary but the eng ine is r unning
and a gear is engaged. Otherwise, the veh i­
cle will start to move immediately and this
could result in an acc ident.
- Pay attent ion to the following warnings
when work on the fue l system is required :
- Do not smoke.
- Never work near open flames.
-Always have a working fire extinguisher
nearby .
-All work on the battery or electrical system
in your vehicle can result in inju ries, chemi­
cal b urns, acc idents or burns. Because of
this, all work must be performed
onl y by an
author iz ed Audi dealer or authori zed Audi
Serv ice Facili ty .
-To reduce the r isk of e lectr ic shock and in­
jury, never touch the follow ing components
when the engine is running or is being start­ ed:
- Ign ition cable
- Other components in the electronic high- vo ltage ign ition system
- If you must che ck or perform wo rk on the
engine whi le it is running:
-First, set the parking brake and and move
the gearshift lever to neutral (for manual
transm issions) or select the P selector lev­
er posit ion (for automatic transm issions) .
- Always proceed with extreme caution so
that clothing, jewelry or long hair do not become caught in the rad iator fan, fan
belt or other moving components or do
not come into contact with hot compo­
nents. Tie bac k long hair befo re beginn ing
work and do not wear clothing that can
hang down into the engine.
-Lim it yo ur exposure to exhaust and chemi­
cals to as short a time as possible
q .&. .

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

<( a, .... N ,....
N .... 0 \0
3 a,
CD drive (media drives) . . . . . . . . . . . . . . . . 232
Cell phone
refer to Te lephone . . . . . . . . . . . . . . . . . . . 178
Cente r armrest . . . . . . . . . . . . . . . . . . . . . . . . 73
Cent ral locking . . . . . . . . . . . . . . . . . . . . . . . . 3 7
Cent ral locking switch . . . . . . . . . . . . . . . . .
4 1
Convenience key . . . . . . . . . . . . . . . . . . . . . . 4 0
Emergency locking . . . . . . . . . . . . . . . . . . . . 42
Power windows . . . . . . . . . . . . . . . . . . . . . . 49
Remote control key . . . . . . . . . . . . . . . . . . . 40
Sett ing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Ce rtification . . . . . . . . . . . . . . . . . . . . . . . . . 392
Changing e ng ine o il . . . . . . . . . . . . . . . . . . . 335
Changing the scale . . . . . . . . . . . . . . . . . . . . . 13
C ha rg ing the battery (mobile dev ices) . . . . 237
Chi ld restraints
D anger of us in g c hild rest raints in the front
se at. .. .. .. .. .. ............. .. .. .. .
278
Where can I ge t addi tio nal info rmat io n
about child res traints and their use? ....
321
Chi ld rest raint system ancho rs . . . . . . . . . . 3 16
Ch ild safety . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Important safety instructions for using child
safety seats . . . . . . . . . . . . . . . . . . . . . . . . 306
Instal ling a chi ld restraint using the LATCH
sys tem . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 18
M ount ing and releasing the anchorage
hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 18
Tether anchors . . . . . . . . . . . . . . . . . . . . . . 3 19
Te ther straps . . . . . . . . . . . . . . . . . . . . . . . 319
C hil d safety lock
Power w indows . . . . . . . . . . . . . . . . . . . . . .
48
Rea r doo rs . . . . . . . . . . . . . . . . . . . . . . . . . . 4 8
Ch ild safety seats . . . . . . . . . . . . . . . . . . . . . 308
Booster seats . . . . . . . . . . . . . . . . . . . . . . . 312
Convertible c hild seats ........... ... . 3 10
Da nger of using c hild rest raints in the front
seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
278
H ow do I properly i nstall a child safety seat
. h' l 7 306 in my ve 1 c e . .... .. ..... ... .. .. .... .
I nfant seats . . . . . . . . . . . . . . . . . . . . . . . .
308
LATCH system . .. .. ..... ... .. .. .... . 318
Safety instructions . . . . . . . . . . . . . . . . . . . 306
Secur ing . .. .. ............... .. .. .. . 313
Unused safety belts on the rear seat 308
Child seats
L owe r ancho rages . . . . . . . . . . . . . . . . . . .
317
Index
Class ic view . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362
Cleaning Alcantara . . . . . . . . . . . . . . . . . . . . 365
Cleani ng art ific ial le ather . . . . . . . . . . . . . . . 3 65
Cleaning carbon pa rts . . . . . . . . . . . . . 364, 365
Cleaning decorative parts/trim . . . . . . . . . . 364
Cleani ng exhaust tail pipes . . . . . . . . . . . . . 36 4
Cleaning plastic parts . . . . . . . . . . . . . . . . . . 365
C leaning textiles . . . . . . . . . . . . . . . . . . . . . . 365
Climate contro l system
refer to Automatic cl imate control . . . . . . . 81
Clock ............................ 17,251
Closing
Power top . . . . . . . . . . . . . . . . . . . . . . . . . . .
54
Cockp it (overview) . . . . . . . . . . . . . . . . . . . . . . 8
Command (vo ice recogn it ion system) . . . . .
171
Comp act spa re tire . . . . . . . . . . . . . . . . . . . . 3 75
Compartments . . . . . . . . . . . . . . . . . . . . . . . . 76
Compass in the mirror . . . . . . . . . . . . . . . . . . 69
Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . 3 9 2
Connect ion manager . . . . . . . . . . . . . . . . . . 252
Connect ions
refer to M edia . . . . . . . . . . . . . . . . . . 230, 239
Cons umer Information . . . . . . . . . . . . . 266, 389
Cons umption ( fuel) . . . . . . . . . . . . . . . . . . . . 17
Contac ting NHTSA . . . . . . . . . . . . . . . . . . . . 2 66
Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Additional directory . . . . . . . . . . . . . . . . . . 253
Im po rting/expo rt ing . . . . . . . . . . . . . . . . . 188
Memo ry c apaci ty . . . . . . . . . . . . . . . . . . . . 189
Stor ing as destin ation . . . . . . . . . . . . . . . . 2 15
Control buttons (opera ting the MMI) . . . . . 160
Control knob with joystick function ( MMI op­
eration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
163
Convenie nce key
Swi tch ing the igni tion on . . . . . . . . . . . . . .
8 9
U nlocking/locking . . . . . . . . . . . . . . . . . . . . 40
Convenience open ing/closing . . . . . . . . . . . . 49
Convertible child sa fety seats . . . . . . . . . . . 310
C onvertib le locki ng retr ac to r
Activating . . . . . . . . . . . . . . . . . . . . . . . . . .
315
Deact ivating . . . . . . . . . . . . . . . . . . . . . . . . 316
U si ng to secure a chi ld safety seat . . . . . . 315
Coo led g love compartmen t . . . . . . . . . . . . . . 76
Cooling mode (automatic climate control sys-
tem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
82 , 83
395

Index
Cooling system Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . .
336
Coolant temperature indicato r . . . . . . . . . . 11
C ross ha irs . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Cruise control system . . . . . . . . . . . . . . . . . . 107
Cup holders . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6
Curre nt cons umption . . . . . . . . . . . . . . . . . . . 17
D
Data connection . . . . . . . . . . . . . . . . . . . . . . 198
Data protectio n . . . . . . . . . . . . . . . . . . . 199, 230
D ata recorder . . . . . . . . . . . . . . . . . . . . . . . . 156
Date ...... .. .. ................... 17,251
Date display . . . . . . . . . . . . . . . . . . . . . . . . . 25 1
Daytime runni ng lig hts . . . . . . . . . . . . . . . . . 6 1
Declarat ion of compliance
Aud i adapt ive cruise control . . . . . . . . . . .
392
Aud i side assist . . . . . . . . . . . . . . . . . . . . . 392
Ce ll phone package . . . . . . . . . . . . . . . . . . 392
Convenience key . . . . . . . . . . . . . . . . . . . . . 392
Elect ronic immob ilizer . . . . . . . . . . . . . . . . 392
Garage doo r opener (Home link) . . . . . . . . 39 2
Rem ote con trol key . . . . . . . . . . . . . . . . . . 392
D EF
refer to AdBlue . . . . . . . . . . . . . . . . . . . . . . 326
Defrosting (windows) . . . . . . . . . . . . . . . . . . . 84
DEF (inst rument cluste r) . . . . . . . . . . . . . . . . 12
Demo mode
refer to Presentation mode . . . . . . . . . . . . 215
Destination on the map
Using the MMI touch . . . . . . . . . . . . . . . . .
209
Determin ing cor rec t load l imi t
Diese l 356
D iese l part iculate filte r . . . . . . . . . . . . . . . 329
Prewa rm ing . . . . . . . . . . . . . . . . . . . . . . . . . 89
Diese l Exhaust Fl uid (DEF)
refer to Ad Blue . . . . . . . . . . . . . . . . . . . . . . 326
Diese l fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Dig ita l compass . . . . . . . . . . . . . . . . . . . . . . . 69
Dig ita l Rights Management . . . . . . . . . . . . . 230
D imensions . . . . . . . . . . . . . . . . . . . . . . . . . . 38 7
Dimming the exterior mirrors . . . . . . . . . . . . 66
D imming the rea rview mir ror . . . . . . . . . . . . 66
D ire ctory
refer to Con tacts . . . . . . . . . . . . . . . . . . . . 186
396
D isplay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Infotainment system d isp lay . . . . . . 159, 252
Instrument cluster . . . . . . . . . . . . . . . . . . . . 16
Mult ifunct ion steer ing whee l . . . . . . . . . . . 13
Ve rsions (MMI) . . . . . . . . . . . . . . . . . . . . . . 159
Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Doors
Emergency locking . . . . . . . . . . . . . . . . . . . . 42
Driver informat ion system . . . . . . . . . . . . . . .
17
Chang ing v iews . . . . . . . . . . . . . . . . . . . . . . 13
Ene rgy consumers . . . . . . . . . . . . . . . . . . . . 18
On-board computer . . . . . . . . . . . . . . . . . . . 17
Outs ide temperat ure display. . . . . . . . . . . . 10
Se rvice in terv al displ ay . . . . . . . . . . . . . . . 340
V iew . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
D river seat
refer to Seating posi tion . . . . . . . . . . . . . . 259
D rives
refer to Media . . . . . . . . . . . . . . . . . . 230, 239
Drive select
refer to Audi d rive select . . . . . . . . . . . . . . 138
D rivi ng econom ica lly . . . . . . . . . . . . . . . . . . . 86
Driving safe ly . . . . . . . . . . . . . . . . . . . . . . . . 258
D riving through wa ter . . . . . . . . . . . . . . . . . .
86
D . .
t· 17 riving ,me
... ... .. .. ........ ..... .. .
DVD drive (med ia drives) . . . . . . . . . . . . . . .
231
Dynam ic steeri ng . . . . . . . . . . . . . . . . . . . . . 139
Dynam ic volume
refer to System volume . . . . . . . . . . . . . . . 256
E
E-mail 185
Econom ica l rou te . . . . . . . . . . . . . . . . . . . . . 2 14
eco (button) . . . . . . . . . . . . . . . . . . . . . . . . . .
82
EDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
El ec tromechanical parking b rake . . . . . . . . . 94
Electromechanical steering . . . . . . . . . . . . . 154
E lectronic immobilizer . . . . . . . . . . . . . . . . . .
38
El ectronic stabiliza tion control
referto ESC ..... .. .. ........... 151,152
Emergency assistance . . . . . . . . . . . . . . . . . 368
Emergency b raking function . . . . . . . . . . . . . 94
Emergency call funct io n
A udi con nect eme rgency call and service .
2 05
Emergency flashers . . . . . . . . . . . . . . . . . . . . 63

Index
Wi- F i
Audi music str eam . . . . . . . . . . . . . . . . . . . 234
Aud io player . . . . . . . . . . . . . . . . . . . . . . . . 234
Ho ts pot . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 97
O nline media . . . . . . . . . . . . . . . . . . . . . . . 235
also refer to Wi- F i . . . . . . . . . . . . . . . . . . . 234
W ind d efl ector . . . . . . . . . . . . . . . . . . . . . . . . 57
Cl ean ing . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
W indows
Ch ild safety lock . . . . . . . . . . . . . . . . . . . . . . 48
C lean ing/r emov ing ice . . . . . . . . . . . . . . . . 364
D efrost ing . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Pow er windows . . . . . . . . . . . . . . . . . . . . . . 4 8
W indshield
C le ani ng . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 7
D efrost ing . . . . . . . . . . . . . . . . . . . . . . . . . . 84
also ref er to W indshield . . . . . . . . . . . . . . . 67
W indshield washe r system ......... . 67, 339
R ese rvoir capaci ty . . . . . . . . . . . . . . . . . . . 388
W ind sh ield wipers . . . . . . . . . . . . . . . . . . . . . 67
Winter operation Car washes . . . . . . . . . . . . . . . . . . . . . . . . . 362
Cooling system . . . . . . . . . . . . . . . . . . . . . . 336
Defro sting the w indows . . . . . . . . . . . . . . . 84
Removing ice from w indows . . . . . . . . . . . 364
Seat heating . . . . . . . . . . . . . . . . . . . . . . . . . 83
Snow chains . . . . . . . . . . . . . . . . . . . . . . . . 358
Steer ing whee l heating . . . . . . . . . . . . . . . . 85
Ti res . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
Ve hicl e battery . . . . . . . . . . . . . . . . . . . . . . 338
W indshield washer system . . . . . . . . . . . . 339
W inter tires .. .... .......... ........ . . 357
X
Xenon headligh ts . . . . . . . . . . . . . . . . . . . . . 380
z
Zooming (map) . .... .... .... ... ... 209, 217
406