cooling AUDI A3 SEDAN 2018 User Guide

Checking and Filling
If the recommended engine oil is not available,
in an eme rg enc y you may add a maximum of 1
quart(! liter) of ACEA C3 or API SN engine oil
one tim e until the next oil change.
F or more information on the correct engine oil
for your vehicle, contact an authorized Audi dea l­
er or authorized Audi Service Facility . Have the oil
changed by an authori zed Audi dealer o r author­
ized Service Fac ility .
Audi re commend s
((#Castrol I llt/li{:t;'{g Frtw.:;-..·-..d.f'/,'JAL
Audi r ecommends using th e Lon g Lif e high ­
perf orm ance eng in e oil from Audi Genu in e
Parts .
Checking the engine oil level
The engine oil dipstick varies depending on the
engine type .
Fig . 268 Oil d ipsti ck: checking th e engine oil le vel (exa m­
p le )
Observe the safety precaut ions ¢.& in Working
in the engine compartment on page 318 .
.. Park your vehicle on a level surface.
.. Shut the engine off when it is warm .
.. Wait approx imately two m inutes .
.. Open the hood ¢ page 320 .
.. Remove the oi l dipstick¢ page 321, fig. 267,
wipe it off with a clean cloth and insert it a ll the
way in again .
.. Remove the o il dipstick again and then read the
oil
level ¢ table on page 322.
.. Add engine oil if necessary c:> page 323.
322
Areas on the o il dipstick 9 fig . 268 .
(D If the engine oil leve l is just before the
mark ing
(D , then engine oil must be added .
See¢@.
@ Do not add engine oil.
(D Note
- T he engine o il level must not be below the
ma rking
(D , because this increases the risk
of engine damage.
- After add ing engine oil, the oil leve l must
not be above the marking @, because this
increases the risk of catalytic converter and/
or engine damage . Do not start the engine .
Contact an authorized Audi dealer or au­
thorized Audi Service Facility to have excess eng ine oil extracted if necessary .
(D Tips
- The engine oil consumption may be up to
0.5 quart/600 miles (0.5 liter/1,000 km),
depending on driving style and operating
conditions. Consumpt io n may be h igher
dur ing the fi rst 3,000 mi les (5,000 km) . Be­
c ause of this , the eng ine o il level must be
che cked regularly.
It is best to check each
t ime you refuel your vehicle and before long
drives .
- In order to prov ide effective l ubrication and
cooling of interna l engine components, a ll
internal combustion engines consume a cer ­
tain amount of oil. O il consumption varies
from engine to engine and may change sig­ nificantly over the life of the engine. Typi­
cally, eng ines with a specif ied break-in peri­
od consume more oil during the break-in pe ­
riod than they consume after o il consump­
t ion has stabilized .
- Under normal condit ions, the rate of oil
cons umption depends on t he quality and
viscosity of the oil, the RPM (revo lutions per
mi nute) at which the engine is ope rated, the
ambien t temperature and road conditions .
Further factors are the amount of oi l dilu­
tion from water condensation or fuel resi­ due and the oxidation level of the oil. As any
eng ine is subject to wear as m ileage builds
Ii>-

Check ing and F illing
Changing the engine oil
We recommend that have your oil changed by an
authorized Audi dealer or a qualified service sta­ tion.
Before you check anyth ing in the eng ine compart­
ment,
a lw ays re ad and h eed all WARNING S c> .&
in Working in the engine compartment on
page 318.
The engine oil must be changed accord ing to the
intervals specif ied in your Warranty
& Mainte­
nance booklet. This is very impo rtant because the
lubricat ing p ropert ies of o il d iminish gradually
du ring normal vehicle use.
Under some c ircumstances the eng ine o il should
be changed more frequently . Change oil more of­
ten if you d rive most ly short distances, ope rate
the vehicle in dusty areas or under predominant ly
stop -and-go traffic cond it ions, o r have yo ur vehi ­
cle where temperatures remain below freezing
for extended periods .
Detergent additives in the oil will make fresh o il
look da rk afte r th e e ng ine
has been run ning fo r a
short time. This is norma l and is not a reason to
change the oil more often than recommended.
Because of the prob lem of p roper d isposa l, along
with the special tools and necessa ry expe rt ise re ­
quired, we strong ly recommend that you have
your oil changed by an authorized
Audi dealer or
a qualified service station .
If you choo se to change your oil your self , please
note the fo llowing important information:
A WARNING
T o red uce the risk of personal injury if you
must c hange the engine oil in your veh icle
yourself:
- Wear eye protection .
-To reduce the risk of bu rns from ho t engine
oi l, let the engine cool down to the touch .
-
-When removing the o il drain pl ug with you r
fingers, stay as far away as possible . A lways
keep your forearm paralle l to the ground to
help prevent hot oi l from running down your
arm.
324
- 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 oi l is
harmf ul to your skin. Always protect your
skin by washing oil off thoroughly with soap
and water .
@ Note
Never mix oil additives with your engine oil.
These additives can damage your engine and
adverse ly affect your Audi Limited New Vehi­
cle Warranty .
{® For the sake of the environment
- Before chang ing your oi l, first make sure
you know where you can properly dispose of
the used oil.
- Always dispose of used eng ine o il properly.
Do not dump it on garden so il, wooded
areas, into open streams or down sewage
dra ins.
- Recycle used eng ine o il by tak ing it to a used
eng ine oi l collect ion fac il ity in your area, or
contact a service station .
Cooling system
Coolant
The engine cooling system is filled w ith a mixture
of purified water and coolant additive at the fac­
tory. This coolant must not be not changed.
The coo lant level is monitored thro ugh
the . in­
dicator light
c> page 25. However, we do recom­
mend occas ionally checking the coolant leve l
manually.
If you must add coo lant, use a mixture of water
and coolant additive . Mix ing the coo lant add itive
with dist illed water is recommended.
1111-

Checking and Filling
Coolan t loss usu ally indicates there is a leak. Im ­
m ed iately drive your v ehicle to an authorized
Aud i dea ler or authorized Aud i Serv ice Facility
and have the cooling system inspected. If the
coo ling system is not leaking, a loss can come
from the coolant boiling through overheating
and be ing pushed out of the cool ing system.
.&_ WARNING
- The coo ling system is under pressure . Do
not open the coolant expans ion tank cap
when the eng ine is ho t. This inc reases the
risk of burns .
- T he coo lant add itive and the coolant can be
d angerous to your healt h. For this reason,
keep the coolant in the origina l container
and away from children . There is a risk of
poisoning .
- When working in the engine compartment,
remember that the rad iator fan can switch
on even if the ign ition is switched off, which
increases the risk of in jury .
-
CD Note
Do not add coolant if the expansion tank is
empty . Air could enter the cooling system and
damage the engine. If this is the case , do not
cont inue driving. See an authorized Audi deal­
er or author ized Audi Service Facility for assis­
tance .
Brake fluid
Fig. 271 Eng in e co mpar tment : cap on b rake flu id r eservo ir
O bserve the safety precautions ¢ page 318,
Working in the engine compartment .
326
Checking the brake fluid level
Read the b rake fluid level on the br ake fluid res­
ervoir ¢ page 321, fig . 267. The brake f lu id leve l
must be between the MIN and MAX markings
¢ ,& .
The brake f lu id leve l is monito red automa tically .
Changing the brake fluid
Have the brake fluid changed regularly by an au ­
thorized Aud i dea ler or authorized Audi Service
Facility.
.&_ WARNING
- I f the b rake fl uid leve l is below the MIN
marking, i t can impair the bra king effec t
and driving safety, wh ich increase the r isk o f
an accident. Do not continue driving . See an
authorized A udi dealer or authorized A udi
Serv ice Facility fo r ass istance.
- If the brake fl uid is old, b ubbles 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
w ith VW standard S0 l 14 or
FMVSS- 116 DOT 4 .
CD Note
-If the brake f luid level is above the MAX
marking, brake fluid may leak o ut over the
edge of the reservoi r and result in damage
to the vehicle .
- Do not ge t any brake fl uid on the vehicle
pai nt, b ecause it w ill co rrode the paint .
Battery
General warnings about batteries
Because of t he comp lex power supp ly, all work
on batter ies such as d isconnecting, replacing ,
etc., shou ld
only be pe rformed by an authori zed
Audi dealer or authorized A udi Service Fac ility
¢ _& . ~

LL co .... N
" N .... 0 N > co
No. Equipment
F49 Clutch sensor (relay 1+2),
high-voltage
battery, power electronics
F52 Control module for suspension control
F53 Rear window defogger
The power seats* are protected via
circuit break­
ers
that automatically switch on after a few sec­
onds after the overload has been reduced.
Fuse assignment -engine compartment
Fig. 299 Engine compartme nt: fuse assignment
No. Equipment
Fl Electronic Stabilization Control (ESC)
F2 Electronic Stabilization Control (ESC)
F3 Engine control module
Eng ine components, engine cooling, aux-
F4 iliary heater co il relay (1+4+7), secondary
air inject ion pump relay
FS Engine components, fue
l tank system
(diesel), CNG cut-off va lve
F6 Brake light switch
F7 Eng
ine components, water pumps, tank
system (gasoline engine)
FB Heat oxygen sensor
Fuses and bulbs
No. Equipment
F9 Engine
components, exhaust door, glow
time control module (relay 6)
F lO Fuel control module, fuel pump
F ll Auxiliary
heater heating element 2, en-
gine components, secondary air pump
F12 Auxiliary
heater heating element 3, vac-
uum pump
F13 Automat ic transmission
F lS Horn
F16 Ign
it ion coil (relay 8), power and control
electronics
F17 E
lectroni c Stabilization Control (ESC), en-
gine control module (relay S)
F18 Terminal
30 (voltage reference), battery
monitoring
Fl9 Windshield wipers
F20 Anti-theft alarm system
F22 Terminal
SO diagnos is, engine control
module
F23 Starter
F24 Auxiliary
heater heating element 1, brake
booster
F 31 Vacuum pump, water pump, high pres-
sure pump, fuel injectors
F33 Brake
pressure reservoir, recuperation,
transmission fluid pump
F34 Brake booster
F 35 A/C function
relay
F37 Parking heater
Bulbs
Replacing light bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace any bulbs for
you.
It is becom ing increasingly more and more diffi­
cu lt to replace vehicle light bulbs since in many
cases, other parts of the car must first be re­
moved before you are ab le to get to the bulb.
This applies especially to the light bulbs in the
373

Index
Compass in the mirror . . . . . . . . . . . . . . . . . . 57
Compl iance . . . . . . . . . . . . . . . . . . . . . . . . . . 386
connect e-tron services ......... .... .. .
Connection manager
Connections 199
244
refer to Med ia . . . . . . . . . . . . . . . . . . 223, 232
Consumer I nformat ion . . . . . . . . . . . . . 258, 383
Consumpt ion (f uel) . . . . . . . . . . . . . . . . . 17 , 18
Contact ing NHT5A . . . . . . . . . . . . . . . . . . . . 258
Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Additional directory . . . . . . . . . . . . . . . . . . 245
Impo rt ing/exporting . . . . . . . . . . . . . . . . . 187
Memory capacity . . . . . . . . . . . . . . . . . . . . 188
Storing as dest ination . . . . . . . . . . . . . . . . 208
Control buttons (operating the M MI) . . . . . 156
Contro l knob with joystick f unction (MMI op­
e ration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Convenience key Emergency operat ion . . . . . . . . . . . . . . . . . . 79
Starting/stopping the engine . . . . . . . . . . . 76
Unlock ing/ lock ing . . . . . . . . . . . . . . . . . . . . 34
Convenience opening/closing . . . . . . . . . . . . 40
Conve rtible ch ild safety sea ts . . . . . . . . . . . 302
Convert ible locking retractor
Activating . . . . . . . . . . . . . . . . . . . . . . . . . . 307
D eactivating . . . . . . . . . . . . . . . . . . . . . . . . 308
Using to secure a child safety seat . . . . . . 307
Cooling down . . . . . . . . . . . . . . . . . . . . . . . . . 72
Cooling mode Automatic climate control system . . . . . . . 69
Cooling system Add ing coolant . . . . . . . . . . . . . . . . . . . . . . 325
Coolan t . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Coolant leve l checking . . . . . . . . . . . . . . . . 325
Coolant temperature indicator . . . . . . . . . . 11
C ru ise contro l system . . . . . . . . . . . . . . . . . . 120
Cup holders . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Curre nt cons umption . .. ..... ... .. .. . 17 , 18
D
Data co nnect ion . . . . . . . . . . . . . . . . . . . . . . 196
Data pro tec tio n . . . . . . . . . . . . . . . . . . . . . . . 197
D ata recorder . . . . . . . . . . . . . . . . . . . . . . . . 152
D ate ..... ... .. .. ................ ... . 24 3
Date display . . . . . . . . . . . . . . . . . . . . . . . . . 243
Daytime runni ng lights . . . . . . . . . . . . . . . . . 49
390
Decla ration of compliance . . . . . . . . . . . . . . 386
Defrosting (windows) Automat ic cl imate cont ro l system . . . . . . . 70
DEF (instrument cluster) . . . . . . . . . . . . . . . . 12
De luxe automa tic climate contro l
refer to Climate control system
(automatic) . . . . . . . . . . . . . . . . . . . . . . 68, 69
De mo mode
refer to Pr esen ta ti on mode . . . . . . . . . . . . 209
Determ ining correct load lim it . . . . . . . . . . 345
Digital compass . . . . . . . . . . . . . . . . . . . . . . . 57
D igital R ights Ma nagement . . . . . . . . . . . . . 223
D imensions . . . . . . . . . . . . . . . . . . . . . . . . . . 381
D imm ing t he exterior mi rro rs . . . . . . . . . . . . 5 4
D imm ing t he rearv iew m irror . . . . . . . . . . . . 54
D irecto ry
refer to Contacts . . . . . . . . . . . . . . . . . . . . 186
D isplay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
Infotainment system disp lay . . . . . . 155, 244
Instrument cluster . . . . . . . . . . . . . . . . . . . . 16
Mult ifunct ion steer ing whee l . . . . . . . . . . . 13
D ista nce . . . . . . . . . . . . . . . . . . . . . . . . . . 17 , 18
Doors Child safety lock . . . . . . . . . . . . . . . . . . . . . . 39
Door con tact sw itch . . . . . . . . . . . . . . . . . . . 52
E mergency release . . . . . . . . . . . . . . . . . . . . 36
also refer to Unl ocking/locking .... 3 1, 33 , 34
Driver informat ion system
Chang ing v iews . . . . . . . . . . . . . . . . . . . . . . 13
E conomy tips (analog instrument cluster) . 19
E ffic iency program . . . . . . . . . . . . . . . . . . . . 19
E ne rgy cons ume rs (Aud i v ir tu al co ckpit) . . 18
Ou tside temperat ure display. . . . . . . . . . . . 12
Service interva l display . . . . . . . . . . . . . . . 328
T rip computer (analog instrument cl uster . 18
Tr ip comp uter (A udi v irtual cockpit) . . . . . . 17
V iew . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Drive r seating position . . . . . . . . . . . . . . . . . 250
Drives
refer to M edia . . . . . . . . . . . . . . . . . . 223, 232
D rive select
refer to Aud i drive select . . . . . . . . . . . . . . 140
Drivi ng econom ica lly . . . . . . . . . . . . . . . . . . . 73
D rivi ng safely . . . . . . . . . . . . . . . . . . . . . . . . 249
Driving thro ugh water . . . . . . . . . . . . . . . . . . 72

Index Out of service . . . . . . . . . . . . . . . . . . . . . . .
359
Ra1s1ng . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379
Specifications . . . . . . . . . . . . . . . . . . . . . . . 381
Transporting (plug-in hybrid drive) . . . . . . 102
Veh icle battery . . . . . . . . . . . . . . . . . . . . . . . 326
Charge level . . . . . . . . . . . . . . . . . . . . . . . . 152
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Vehicle care.. .. .. ............. .. .. .. . 354
Vehicle control modules. . . . . . . . . . . . . . . . 152
Vehicle jack . . . . . . . . . . . . . . . . . . . . . . 360, 366
Vehicle sound . . . . . . . . . . . . . . . . . . . . . . . . . 94
Vehicle tool kit . . . . . . . . . . . . . . . . . . . . . . . 360
Version information . . . . . . . . . . . . . . . . . . . 246
VIEW but ton . . . . . . . . . . . . . . . . . . . . . . . . . . 13
V IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381
Voice guidance
refer to Multifunction
steer ing wheel . . . . . . . . . . . . . . . . .
13, 15, 16
Voicemail . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Voice recognition system . . . . . . . . . . . . . . . 170
Commands . . . . . . . . . . . . . . . . . . . . . . . . . 171
External . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5
Multifunction steering wheel . . . . . . . . . . .
15
Operating . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
vv
Warming up . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Warning/Indicator lights
Airbag system . . . . . . . . . . . . . . . . . . . . . .
281
Warning lights
refer to Indicator lights . . . . . . . . . . . . . . . . 20
Warranty coverages . . . . . . . . . . . . . . . . . . . 383
Wash ing matte finish paint . . . . . . . . . . . . . 354
Weights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382
What happens if you wear your safety belt too
loose? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
265
What happens to unbelted occupants? . . . . 261
What impairs driving safety? . . . . . . . . . . . . 249
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . 346
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Glossary of tire and load ing terminology . 333
Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . 363
400
T ire pressure monitoring system . . . . . . . 350
Tires and vehicle load limits . . . . . . . . . . . 343
Wheel wrench . . . . . . . . . . . . . . . . . . . . . . . . 360
When must a safety belt be replaced? . . . . 263
When must the airbag system be inspected? 281
Where are lower anchorages located? . . . . 309
Wi-Fi
Audi music stream . . . . . . . . . . . . . . . . . . .
227
Audio player . . . . . . . . . . . . . . . . . . . . . . . . 227
Online media . . . . . . . . . . . . . . . . . . . . . . . 228
also refer to Wi-Fi . . . . . . . . . . . . . . . . . . . 227
Wind deflector . . . . . . . . . . . . . . . . . . . . . . . . 45
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Window regulators . . . . . . . . . . . . . . . . . . . . . 39
Windows
Cleaning/removing ice . . . . . . . . . . . . . . . .
356
Windshield washer system . . . . . . . . . . 55, 328
Reservoir capacity . . . . . . . . . . . . . . . . . . . 382
Windshield wipers . . . . . . . . . . . . . . . . . . . . . 55
Replacing wiper blades . . . . . . . . . . . . . . . . 56
Winter operation
Car washes . . . . . . . . . . . . . . . . . . . . . . . . .
354
Cooling system . . . . . . . . . . . . . . . . . . . . . . 324
Defrosting windows (automatic climate con­
trol system) . . . . . . . . . . . . . . . . . . . . . . . . .
70
Removing ice from windows . . . . . . . . . . . 356
Seat heating (automatic climate control sys-
tem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
70
Snow chains . . . . . . . . . . . . . . . . . . . . . . . . 346
Steering wheel heating . . . . . . . . . . . . . . . . 71
Windshield washer system . . . . . . . . . . . . 328
Winter tires . . . . . . . . . . . . . . . . . . . . . . . . 346
X
Xenon headlights . . . . . . . . . . . . . . . . . . 49, 373
z
Zoom (map) . . . . . . . . . . . . . . . . . . . . . . . . . 210