cooling AUDI Q3 2016 User Guide

Cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro ­
tects the engine from freezing in the winter .
The cooling system is sealed and generally re­
quires little attention.
T he cooling system has been filled at the factory
with a permanent coolant which does not need to
be changed . The coolant consists of a mixture of
specially condit ioned water and the manufactur ­
er's glycol-basedcoolant add itive G 13 antifreeze
with anticorrosion additives (SO% for USA mod­
e ls; 60% for Canada models) . This mixt ure bot h
assures the necessary frost protec tion and pro­
tects meta l components in the engine's cooling
system from corrosion and scaling . It also raises
the boiling point of the coolant.
D o not red uce the concent ration of the coolant in
the summer by add ing p la in water.
The propor­
tion of coolant addit ive mu st be at least 50 %
but not more than 60 %
to mainta in antifreeze
protection and cooling efficiency. If the coolant
frost protection is too low, the coolant could
freeze and damage the vehicle heating and en­
g ine cooling system .
For year-round driving, antifree ze is added at the
factory for temperatures down to :
- -31° F(- 3S°C)USA
- -4 0 ° F ( - 40 °C) Can ada.
If you must add coolant, use a m ixture of water
and coolant addit ive. M ixing the coolant additive
with d istilled water is recommended .
_& WARNING
Before you check anythi ng i n t he engine com­
partment, a lways read and heed a ll WARN ­
INGS
¢ .&. in Working in the engine compart­
ment on page 177 .
(D Note
-Befo re winter se ts in, have the coo lant
checked to see if the coolant additive in you r
vehicle is sufficient to meet the cl imate con -
Check ing and Filling
ditions. This is especially important if you
live in a region where the winter is extreme­
ly cold. If necessary, increase the proportion
of coolant additive to 60%.
- When adding coolant additive to your cool­
ing system, remember :
- We recommend us ing only coolant add i­
tive G12+ + or G13 fo r yo ur vehicle. This
coolant addit ive is avai lab le a t aut horized
A udi dealers . O ther types of antifree ze can
significantly reduce corrosion pro tect ion .
The resulting corrosion can cause a loss of
coolant and serious engine damage.
- Do not add any type of radiator leak sealant
to your vehicle's engine coolant. Adding ra ­
diator repair fluid may adversely affect the
function and performance of your cooling system and cou ld resu lt in damage not cov­
ered by your New Veh icle Limited Warra nty .
Checking the engine coolant level
The engine coolant level can be checked with a
quick glance.
Fi g. 1 52 Engin e compar tmen t: Cover o n the coo la n t ex ­
pans ion tank
.. Before you check anything in the eng ine com­
partment,
always r ead and h eed all WARN­
INGS ¢ ,A in Working in the engine compart ­
ment on page 177 .
.. Par k your veh icle on a leve l sur face.
.. Tur n off t he ignit io n .
.. Read the eng ine coolan t leve l from the coo lant
expansion tank
¢ fig . 15 2, ¢ page 179,
fig. 149 .
With a cold engine, the coo lant level
should be b etween the "MIN" and "MAX" mark­
ings. When the eng ine is warm, the level may
be slightly above the "MAX" marking. .,..
183

Check ing and F illing
The location of the coolant expansion tank can be
seen in the engine compartment illustration
c::> page 179.
To obtain an accura te reading, the eng ine must
be switched off .
The expans io n tank in your vehicle is equipped
with a n elec tric coolant level sensor.
When the coolant level is too low, the war ning
lig ht in the Auto-Check System
c::> page 14 will
blin k until you add coo la nt and the level has bee n
restored to normal. Even t hou gh the re is an e lec­
tr ic coolant level sensor, we still re commend you
check the coo lant level from time to time .
Coolant loss
Coolant loss may indicate a leak in the cooling
system. I n the event of coolant loss, the cooling
system should be inspected immediately by your
author ized Audi dealer. It is not enough me rely
to add coolant.
I n a
se aled system, losses can occur only if the
boi ling point of the coo lant is ex ceeded as a re ­
sul t of over heat ing.
A WARNING
T he cooling system is unde r pressure and can
get very hot . Red uce the risk of scalding from
hot coolant by following these steps.
- Turn off the eng ine and a llow it to cool
down .
- Protect your face, hands and arms from es ­
caping fluid and steam by cove ring the ca p
with a la rge, thick rag.
- Turn the cap s lowly and very ca refu lly in a
counter-clockwise direction w hile ap ply ing
light, downwa rd pressure o n the top of the
cap.
- To avo id being burned, do not sp ill anti­
freeze or coolant on the exha ust system or
hot eng ine parts. Under certain conditions,
the ethy lene g lycol in e ngine coolant can
catch fire.
(D Note
Do not add any type of radiato r leak sealant
to your veh icle's engine coolant. Adding radia-
184
tor repair fluid may a dverse ly affect the func ­
tion and performance of your coo ling system
and could result in damage not covered by
your New Vehicle Limited Warranty.
Adding coolant
Be very careful when adding engine coolant.
Befo re yo u check any thing in the engine compart­
ment,
always read and heed all WARNINGS
c::>
A in Working in the engine compartment on
page 177.
Requireme nt: The re mus t be a res idual amo unt
of coolant in the expans ion tank
c::> (D .
""Tur n off t he engine .
"" Let the eng ine cool down.
"" Pla ce a thick rag over the coolan t ex pan sio n
tank
c::> page 183, fig. 152 and carefull y turn
the cap counter-clockwise
c::> ,&. .
""Add coolant m ixed in the cor rect rat io
c::>page 183, Coolant up to the MAX ma rking.
"" Make sure that the fluid level remains stab le.
Add more coolant if necessa ry .
"" Twis t the cap o n aga in
tightly.
Replacement eng ine coolant must conform to ex­
act specifications
c::> page 183, Coolant.
We recommend using only coo lant ad ditive G 12+
+ , G13 or in an emergency G12+. Do
not use a
different additive. In an emergency use plain wa­
te r unt il you can get the cor rect addit ive and ca n
r esto re the cor rect rat io. Thi s should be done as
soon as possib le.
If you have lost a considerable amount of coo l­
an t, then you s hou ld add co ld a ntifreeze and cold
water only whe n the engine is co ld.
A lways use
new engine coo lant when ref illing.
Do no t fill c oolant above the "MAX" mark . Excess
coolant will be forced out th rough the pressure
r elief valve in the cap when the engine becomes
hot.
~

A WARNING ,~
- The cooling system is under pressure and
can get very hot. Reduce the risk of scald ing
from hot coolant by following these steps.
- Turn
off the engine and allow it to coo l
down.
- Protect you r face, hands and arms from
escaping fluid and steam by cover ing the
cap with a large, thick rag.
- Turn the cap slowly and very carefully in a
counter-clockwise d irection while applying
light, downward p ressure on the top of
the cap.
- To avoid being burned, do not spill anti­
freeze or coolant on the exhaust system or
hot engine parts. Under certa in cond i­
tions, the ethylene glycol in eng ine cool­
ant can catch fire.
- Antifreeze is poisonous. Always store anti­
freeze in its orig inal container and well out
of the reach of children.
- If you dra in the coolant, it must be caught
and safely stored in a proper conta iner
clearly marked "poison".
- Do not add coolant if the expansion tank is
empty. Air cou ld enter the cooling system
and damage the eng ine. If this is the case,
do not continue driving . Seek professional
ass istance.
- Coolant pollutes the env ironment and could
cause an eng ine fire. Excess coolant will be
fo rced o ut through the pressure relief valve
i n the cap when the e ng ine be comes hot.
- If, in an emergency, only wate r can be add­
ed, the co rrect r atio betwee n wate r and an­
tifree ze
Q page 183 must be res to red as
soon as possib le.
{® For the sake of the environment
Dra ined coolant sho uld not be reused. Always
disp ose of used coolant while obse rving all
....
"' environment al regulat ions. ci ::, co .... N -
Ch eck ing and Filling
Rad iator fan
The radiator fan switches on automatically by it­
self .
The radiator fan is driven by the engine via the V­
belt. The viscous clutch regulates th e speed of
the fan accord ing to the temperature of the cool­
ant .
An auxiliary e lectr ic radiator fan* switches on and
off depending on coo lant temperature and other
vehicle operating conditions.
After you switch the engine
off, the auxiliary fan
can continue running for up to 10 m inutes -even
with the ignition
off. It can even switch on aga in
later by itself
Q .& , if
- the temperature of the engine coolant rises due
to the heat build-up from the engine in the en­
gine compartment, or
- the engine compartment heats up beca use the
veh icle is parked in intense sunlight.
A WARNING
- To reduce the r isk of persona l injury neve r
touch the radia to r fan .
- The auxiliary e lectr ic fan is temperature
controlled and can switch on s uddenly even
when the engine is not ru nning .
- The a uxiliary radiator fan sw itches on auto­
mat ically when the eng ine coolant reaches a
certa in temperature a nd will continue to run
until the coolant temperature d rops.
185

Index
Lower anchorages . . . . . . . . . . . . . . . . . . . 145
Safety instructions . . . . . . . . . . . . . . . . . . . 135
Unused safety belts on t he rear seat . . . . 13 7
Ch ild se ats . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Secur ing . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
C igarette lighter . . . . . . . . . . . . . . . . . . . . . . . 53
Clean ing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
C lea ning/ remov ing ice from wi ndows . . . . . 170
Clean ing Alcantara . . . . . . . . . . . . . . . . . . . . 171
Clea ning artificia l leather ..... ... .. .. ... 171
Clea ning ca rbon parts ............. 170, 17 1
Clean ing contro ls . . . . . . . . . . . . . . . . . . . . . 170
Clea ning deco rative p arts and t rim ... 169, 170
Clea ning displays . . . . . . . . . . . . . . . . . . . . . 170
C leaning exha ust ta il pipes . . . . . . . . . . . . . 169
C lea ning plast ic parts . . . . . . . . . . . . . . . . . . 170
Clean ing textiles...................... 171
C lean ing the rims . . . . . . . . . . . . . . . . . . . . . 169
Climate con trol system . . . . . . . . . . . . . . . . . 62
Climate control system (automatic)
Ad justing the temperature . . . . . . . . . . . . . 65
Air distribution . . . . . . . . . . . . . . . . . . . . . . . 65
Air vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
AUTO (automatic mode) . . . . . . . . . . . . . . . 65
B lower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Changi ng the tempe rat ure unit . . . . . . . . . 66
D efrost ing the w indshie ld . . . . . . . . . . . . . . 6 5
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Rea r window de fogger . . . . . . . . . . . . . . 64, 6 6
Recirc ulation mode . . . . . . . . . . . . . . . . . . . 65
Synchronizing . . . . . . . . . . . . . . . . . . . . . . . . 66
Climate con trol system (manual)
Ad justi ng the tempera ture . . . . . . . . . . . . . 63
Ai r dist ribution, air ven ts . . . . . . . . . . . . . . . 64
Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Defrosting the windows . . . . . . . . . . . . . . . 64
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Rear window defogger . . . . . . . . . . . . . . . . . 64
Recirc ulation mode . . . . . . . . . . . . . . . . . . . 63
Closing Panorama roof . . . . . . . . . . . . . . . . . . . . . . . 37
Closing/opening by remo te con trol . . . . . . . . . . . . . . . . . . . . 29
with the cen tra l locking sw itch . . . . . . . . . . 31
with the convenience key . . . . . . . . . . . . . . . 30
W ith the doo r lock . . . . . . . . . . . . . . . . . . . . 32
Cockpit (ove rview) . . . . . . . . . . . . . . . . . . . . . . 8
238
Coming home . . . . . . . . . . . . . . . . . . . . . . . . . 41
Compartments . . . . . . . . . . . . . . . . . . . . . 54, 56
Compass in the mirror . . . . . . . . . . . . . . . . . . 47
C ompliance . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Cons umer i nformation . . . . . . . . . . . . . . . . . 232
Cons umer Information . . . . . . . . . . . . . . . . . 102
Cons umption (fuel) . . . . . . . . . . . . . . . . . . . . 22
Contacting NHTSA . . . . . . . . . . . . . . . . . . . . 102
Convenience key Ind icator lights . . . . . . . . . . . . . . . . . . . . . . 71
Starting the engine . . . . . . . . . . . . . . . . . . . 69
Stopping the engine . . . . . . . . . . . . . . . . . . 70
Switc hing the ignit ion on . . . . . . . . . . . . . . 69
unlocking/locking . . . . . . . . . . . . . . . . . . . . 30
Convenience opening/clos ing
Convertible child safety seats
Convertible locking retracto r .
..... ... .. . 37
138
Activating . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Deact ivating . . . . . . . . . . . . . . . . . . . . . . . . 144
U sing to secure a child safety seat . . . . . . 143
Coo lant system . . . . . . . . . . . . . . . . . . . . . . . 183
Cooling mo de ( au tomat ic cli ma te co ntrol sys-
te m) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Cooling mode (manual climate control sys-
tem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Cooling system
Coolant temperature . . . . . . . . . . . . . . . . . . 10
Ind icator light . . . . . . . . . . . . . . . . . . . . . . . 14
Cooling System Expansion tank . . . . . . . . . . . . . . . . . . . . . . 183
Co rnering lights . . . . . . . . . . . . . . . . . . . . . . . 80
Crossing water . . . . . . . . . . . . . . . . . . . . . . . 162
Cruise cont ro l sys tem
Changing speed . . . . . . . . . . . . . . . . . . . . . . 75
Desc ription . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Preselecting speed . . . . . . . . . . . . . . . . . . . . 75
Switc hing off . . . . . . . . . . . . . . . . . . . . . . . . 75
switching on . . . . . . . . . . . . . . . . . . . . . . . . . 74
C u p ho lders . . . . . . . . . . . . . . . . . . . . . . . . 54, 55
C u rrent consumpt ion . . . . . . . . . . . . . . . . . . . 22
D
Data recorder . . . . . . . . . . . . . . . . . . . . . . . . 150
Date disp lay . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Dayt ime run ning ligh ts . . . . . . . . . . . . . . . . . 39

Fueling
Fuel filler door em ergency rel ease . . . . . . 176
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Fuses Assignment . . . . . . . . . . . . . . . . . . . . . . . . 220
Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . 219
G
Garment hooks . . . . . . . . . . . . . . . . . . . . . . . . 56
Gas discharge lamps......... ...... ... . 221
Generator Warning/indicator lights . . . . . . . . . . . . . . . 15
Glossary of tire and load ing terminology . . 193
Glove compartment . . . . . . . . . . . . . . . . . . . . 55
Cooling box . . . . . . . . . . . . . . . . . . . . . . . . . 55
Gross Vehicle W eight Rating (GVWR) . . . . . 229
Ground clearance . . . . . . . . . . . . . . . . . . . . . 162
H
Headlight
Headlight assist . . . . . . . . . . . . . . . . . . . . . . 40
Headlight range control system . . . . . . . . . . 39
H eadlights
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Defective . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Headlight range control . . . . . . . . . . . . . . . 18
Headlight range cont rol system . . . . . . . . . 39
Head restra ints . . . . . . . . . . . . . . . . . . . . . . . . 98
adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . 51
removing and installing . . . . . . . . . . . . . . . . 52
Heated Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . 43
Rear window . . . . . . . . . . . . . . . . . . . . . . 64, 66
Wash er no zzles . . . . . . . . . . . . . . . . . . . . . . 45
H eavy clothing and safety belts . . . . . . . . . . 106
High beam . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
High voltage warning label . . . . . . . . . . . . . 229
Hill descent assist . . . . . . . . . . . . . . . . . . . . . 153
Hill descent cont rol . . . . . . . . . . . . . . . . . . . . 85
H ill holdH . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
How are child restraint syst em anchors relat -
ed to child safety . . . . . . . . . . . . . . . . . . . . . 144
Index
How many airbags does my vehicle have? . . 118
How safety belt pretensioners work . . . . . . 110
I
Ignition
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 18
Switching on and off (convenience key) . . . 69
Switching on and off (ignit ion lock) . . . . . . 67
Imbalance (wheels) . . . . . . . . . . . . . . . . . . . 199
Important things to do before driving . . . . . 95
Improperly worn safety belts ........... 110
Indicato r lights .. .. ...... ..... ...... .. . 11
Airbag system . . . . . . . . . . . . . . . . . . . . . . 122
PASSENGER AIR BAG O FF . . . . . . . . . . . . . 122
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . . 13 7
Inflation pressure (tires) . . . . . . . . . . . . . . . 201
I nspe ction interval . . . . . . . . . . . . . . . . . . . . . 25
Installing child safety seats
Safety belts . . . . . . . . . . . . . . . . . . . . . . . . 141
Installing the upper tether strap on the an-
chorage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Inst rument clus te r . . . . . . . . . . . . . . . . . . . . . 10
Indi cato r lights . . . . . . . . . . . . . . . . . . . . . . 11
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Adjusting the lighting . . . . . . . . . . . . . . . . . 43
Interior l ighting . . . . . . . . . . . . . . . . . . . . . . . 42
Front and rear . . . . . . . . . . . . . . . . . . . . . . . 42
Intermittent (windshield wipers) . . . . . . . . . 45
J
Ja ck 216
Jump-starting . . . . . . . . . . . . . . . . . . . . . . . . 223
Jumper cables . . . . . . . . . . . . . . . . . . . . . . . . 224
K
Key ..... .... ... .. .. ... ........... ... . 28
Key not recognized . . . . . . . . . . . . . . . . . . . 70
Replacement key . . . . . . . . . . . . . . . . . . . . . 28
Replacing the battery . . . . . . . . . . . . . . . . . 29
unlocking/locking . . . . . . . . . . . . . . . . . 29, 30
Unlocking/locking . . . . . . . . . . . . . . . . . . . . 32
Kick -down
Automatic transmission . . . . . . . . . . . . . . . 86
241