cooling AUDI Q5 2015 User Guide

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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
T he 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
qu ires little attention .
T he cooling system has been filled at the factory
with a permanent coolant which doe s not need to
be changed . T he cool ant consists of a mixture of
specia lly condit io ned water and the ma nufactur ­
e r's g lycol-basedcoo lant additive G 13 antifreeze
w ith a nticorros ion add itives (50% for USA mod­
e ls; 60% for Canadian models) . Thi s m ixt ure bot h
a ssures the ne cessary frost protection and pro­
tec ts meta l components in the engine 's cooling
system from corrosion and sca ling. It a lso raises
the boiling point of the coolant.
D o not red uce the conce ntra tion o f th e coo lant i n
the summer by add ing p la in wa ter.
The propor­
tion of coolant additive must be at least 50% but not more than 60 %
to maintain antifreeze
protection and cooling efficiency . If the coolant
frost protection is too low, the coolan t could
freeze and damage t he vehicle heat ing and en­
g ine cooling system .
For yea r-round driving, antifree ze is added at the
factory for tempe ratu res down to:
- -31°F ( -35°C) USA
- - 4 0°F ( - 40°C) C anada .
I f yo u mu st add coo lant, use a m ixt ure of wate r
a nd coolant add it ive. Mixing the coolant additive
with d istilled water is recommende d.
_& WARNING
Be fore yo u check any thing i n the engine com ­
par tment, always read and hee d all WAR N-
Checking and Fillin g
IN GS ¢ .& in Working in the engine compart­
ment on page 221.
@ Note
- Be fore winte r sets in , have the coo lant
checke d to see if the coolant additive in you r
vehicle is sufficient to meet the climate con­ diti ons. This is espec ia lly important if you
live in a region where the winter is extreme­
ly cold . If necessary, increase the p ropo rtion
o f coolan t addi tive to 60%.
- Whe n adding coolant additive to your cool­
ing system, remember :
- We recommend using o nly coo lan t add i­
tive G12++ o r G13 fo r yo ur vehicle . This
coolant ad dit ive is available at author ized
A ud i dealers . Othe r types of antifreeze ca n
significantly reduce cor rosion protect ion .
The resulting cor rosion can ca use a loss of
coolant a nd serious e ngine damage .
- Do not add any type of rad iator leak sealant
to your vehicle's engine coolant. Adding ra­ diat or repa ir flu id may adverse ly affect the
function and perfo rmance of your cooling
system and cou ld result i n damage not cov­
ere d by your New Vehicle Lim ited W arra nty .
Checking the engine coolant level
Th e engine coolant level can be checked with a
quick glance.
Fi g. 200 Engin e compar tmen t: cov er on th e coo lant ex pan ­
s io n ta nk
Befo re you ch eck a nyth ing in the eng in e compart­
me nt,
always read and heed all WARNINGS
¢ ,& in Working in the engine compartmen t on
page 221.
~
227

Checking and Filling
"'Park your vehicle on a level surface.
"'Turn off the ignition.
"'Read the engine coolant level from the coolant
expansion tank
c:> fig . 200, <=> page 223,
fig. 197. With a cold engine, the coolant level
should be between the "MIN" and "MAX" mark­
ings . When the engine is warm, the level may
be slightly above the "MAX" marking .
The location of the coolant expansion tank can be
seen in the engine compartment illustration
<=> page 223 .
To obtain an accurate reading, the engine must
be switched off.
The expansion tank in your vehicle is equipped
with an electric coolant level sensor.
When the coolant level is too low, the warning
light in the Auto-Check System
c::> page 29 will
blink until you add coolant and the level has been
restored to normal. Even though there is an elec­
tric coolant level sensor, we still recommend you
check the coolant level from time to time .
Coolant loss
Coolant loss may indicate a leak in the cooling
system. In the event of coolant loss, the cooling
system should be inspected immediately by your
authorized Audi dealer. It is not enough merely
to add coolant .
In a
sealed system, losses can occur only if the
boiling point of the coolant is exceeded as a re­
sult of overheating.
0 Note
Do not add any type of radiator leak sealant
to your vehicle's engine coolant . Adding radia­
tor repair fluid may adversely affect the func­
tion and performance of your cooling system
and could result in damage not covered by
your New Vehicle Limited Warranty .
Adding coolant
Be very careful when adding engine coolant.
Before you check anything in the engine compart­
ment,
always read and heed all WARNINGS
228
c::> A in Working in the engine compartment on
page
221.
Requirement: There must be a residual amount
of coolant in the expansion tank
<=>(i) .
"'Turn off the engine.
"' Let the engine cool down.
"' Place a thick rag over the coolant expansion
tank
c::> page 22 7, fig. 200 and carefully turn
the cap counter-clockwise
c::> .&, .
"'Add coolant mixed in the correct ratio
c::> page 22 7, Coolant up to the MAX marking.
"'Make sure that the fluid level remains stable.
Add more coolant if necessary .
"'Twist the cap on again
tightly.
Replacement engine coolant must conform to ex­
act specifications
c::> page 22 7, Coolant.
We recommend using only coolant additive Gl2+
+, Gl3
or in an emergency Gl2+. Do not use a
different additive. In an emergency use plain wa­
ter until you can get the correct additive and can
restore the correct ratio. This should be done as
soon as possible.
If you have lost a considerable amount of cool­
ant, then you should add cold antifree ze and cold
water only when the engine is cold.
Always use
new engine coolant when refilling.
Do not fill coolant above the "MAX" mark. Excess
coolant will be forced out through the pressure
relief 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 scalding
from hot coolant by following these steps.
- Turn off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering the
cap with a large, thick rag.
- Turn the cap slowly and very carefully in a
counter-clockwise direction while applying
light, downward pressure on the top of
the cap.
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-To avoid being burned, do not spi ll anti­
freeze or coolant on the exhaust system or hot engine parts. Under certain condi­
tions, the ethylene glycol in engine cool­ ant can catch fire.
- Antifreeze is poisonous. Always store anti­
freeze in its original conta iner and well out
of the reach of ch ildren .
-If you drain the coolant, it must be caught
and safely stored in a proper container
clearly marked "poison" .
(D Note
-Do not add coolant if the expansion tank is
empty . Air could enter the cooling system
and damage the eng ine .
If this is the case,
do not continue driving. Seek profess ional
ass istance.
- Coolant pollutes the env ironment and could
cause an eng ine fire . Excess coolant will be
fo rced out through the pressure relief valve
i n the cap when the eng ine becomes hot.
- If, i n an emergency , only water can be add­
ed, the correct ratio between wa ter and an­
tifreeze
~ page 22 7 must be restored as
soon as possib le .
@) For the sake of the environment
Drained coolant should not be reused. Always
dispose o f used coolant while observ ing all
environmental regulations .
Radiator fan
The radiator fan switches on automatically by it­
self.
The radiator fan is driven by the engine via the V­
be lt . The viscous clu tch regulates the speed of
the fan ac cording to the temperature of the cool ­
ant.
An auxiliary e lectr ic rad iator fan* switches on and
off depend ing on coolant temperat ure and othe r
veh icle operating conditions.
Afte r you switch the engine off, the auxiliary fan
can continue runn ing for up to 10 minutes -even
Ch eck in g and Fillin g
with the ignition off . It can even switch on again
later by itself¢& , if
- the temperatu re of the engine coo lant rises due
to the heat build- up from the engine in the en­
gine compartment, or
- the engine compartment heats up because the
veh icle is parked in intense sun light .
A WARNING
-To reduce the risk of persona l injury never
touch the radiator fan .
- The auxiliary electric fan is temperature con­ trolled and can switch on suddenly even
when the engine is not running.
- The a uxiliary radiator fan sw itches on auto­
matica lly when the engine coolant reaches a
certain temperature and will continue to run
until the coolant temperature drops.
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a quick
glance .
Fig. 201 Engine compar tment : cov er on th e bra ke fluid
r e servoir
Before you check anyth ing in the engine compart ­
ment,
al way s read and h eed all WARNIN GS
¢ _.& in Working in the engine compartment on
page 221 .
.,. Read the brake fluid level from the b rake fluid
reservoir ¢
fig. 201, ¢ page 223, fig . 197 . The
brake fluid level must be between the
"MIN "
and "MAX " markings.
229

Child restraints Dang er of using child rest raints in th e front
seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
153
System anchors . . . . . . . . . . . . . . . . . . . . . 184
Where can I get additional information
about child restraints and their use? . . . .
189
Child saf ety . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Important safety instructions for using child
safety seats . . . . . . . . . . . . . . . . . . . . . . . .
17 5
Inst alling a child restraint using the LATCH
system
186
Mounting and releasing the anchorage
hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
186
Tether anchors . . . . . . . . . . . . . . . . . . . . . . 187
Tether straps . . . . . . . . . . . . . . . . . . . . . . . 187
Child safety locks
Rear doors . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Child saf ety seats
Booster seats . . . . . . . . . . . . . . . . . . . . . . .
180
Convertible child seats . . . . . . . . . . . . . . . 178
Danger of using child restraints in the front
seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
153
H ow do I properly install a child safety seat
. h' l 7 1nm yve1ce ...... .... ... .... .. .. .. . 175
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 177
LA TCH system . . . . . . . . . . . . . . . . . . . . . . . 186
Lower anchorages . . . . . . . . . . . . . . . . . . . 185
Safety instructions . . . . . . . . . . . . . . . . . . . 17 5
Unused safety belts on the rear s eat . . . .
177
Ch ild seats .. .. ............. .. .. .. .. . 177
Secur ing . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . . . 76
C leaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Cleaning/remov ing ice from windows . . . . . 2 10
Cleaning Alcantar a ......... .... .. .. .. . 211
C leaning artific ial leather. . . . . . . . . . . . . . . 211
Cleaning carbon parts .. .. .. .. .. .. . 210 ,211
C leaning controls .......... .... .. .. .. . 210
C lean ing decorative parts and trim .. .. .. . 210
Cleaning displays . . . . . . . . . . . . . . . . . . . . . 210
C leaning exhaust tail pip es . . . . . . . . . . . . . 209
Clean ing plast ic parts ....... .. .. .. .. .. . 210
Cleaning rims . . . . . . . . . . . . . . . . . . . . . . . . 209
;::J C leaning textiles .............. ... .. .. . 211
co
~ Climate control
~ Air vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 1.1'1 A t t· . l . ~ u oma 1c rec1rcu at1on . . . . . . . . . . . . . . . . 82 ,....,
Index
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Supplementary . . . . . . . . . . . . . . . . . . . . . . 83
Synchroni zing . . . . . . . . . . . . . . . . . . . . . . . . 82
Climate control system . . . . . . . . . . . . . . . . . 80
Climatized cupholder . . . . . . . . . . . . . . . . . . . 75
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Closing
Panoramic slid ing sunroof . . . . . . . . . . . . . .
47
Coat hooks . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Compass mirror . . . . . . . . . . . . . . . . . . . . . . . 61
Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Consumer information . . . . . . . . . . . . . . . . . 281
Consumer Information . . . . . . . . . . . . . . . . . 142
Contacting NHTSA . . . . . . . . . . . . . . . . . . . . 142
Convenience
Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Convenience key . . . . . . . . . . . . . . . . . . . . . . . 40
Indicator lights . . . . . . . . . . . . . . . . . . . . . . 88
Locking and unlocking vehicle . . . . . . . . . . . 40
Starting engine (START ENGINE STOP but-
ton) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
87
Stopping the engine (S TAR T E NGINE STOP
button) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
88
Switching on ignition . . . . . . . . . . . . . . . . . . 87
Convertib le child s afety seats . . . . . . . . . . . 178
Convertible locking retractor
Activating . . . . . . . . . . . . . . . . . . . . . . . . . .
183
Deactivating . . . . . . . . . . . . . . . . . . . . . . . . 184
Using to secure a child safety seat . . . . . . 183
Coolant system . . . . . . . . . . . . . . . . . . . . . . . 227
Cooled cupholder . . . . . . . . . . . . . . . . . . . . . . 75
Cooling box in glove compartment . . . . . . . . 78
Cooling mode (climate control) . . . . . . . . . . . 81
Cooling System
Expansion t ank . . . . . . . . . . . . . . . . . . . . . .
227
Cornering light . . . . . . . . . . . . . . . . . . . . . . . . 54
Cruise control Changing speed . . . . . . . . . . . . . . . . . . . . . . 96
Preselect speed . . . . . . . . . . . . . . . . . . . . . . 96
Switching off . . . . . . . . . . . . . . . . . . . . . . . . 96
Switching on . . . . . . . . . . . . . . . . . . . . . . . . . 95
Warning/ indicator lights . . . . . . . . . . . . . . .
17
Cruising range . . . . . . . . . . . . . . . . . . . . . . . . . 22
287

Index
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Folding chocks . . . . . . . . . . . . . . . . . . . . . . . 255
Folding the rear seat forward . . . . . . . . . 69, 70
F oot pedals . . . . . . . . . . . . . . . . . . . . . . . . . . 139
For the sake of the environment
Environmentally-friendly driving . . . . . . . 199
Gasoline fumes and the environment . . . . 216
L ett ing the engine warm up . . . . . . . . . 84, 87
Reducing engine noise by early upsh ifting . 11
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Saving fue l by early upshifting . . . . . . . . . . 11
Front airbags Description . . . . . . . . . . . . . . . . . . . . . . . . . 156
H ow they work . . . . . . . . . . . . . . . . . . . . . . 160
Frontal collisions and the laws of physics . . 145
Fr ont ashtray . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Front seats
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Ch ild restra ints in the front seat . . . . . . . . 153
Fuel Addit ives ....... .......... ...... ... . 213
Blended gasoline . . . . . . . . . . . . . . . . . . . . 213
Consumpt ion . . . . . . . . . . . . . . . . . . . . . . . . 22
Fill er neck . . . . . . . . . . . . . . . . . . . . . . . . . . 215
F ue l gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Gasoline additives . . . . . . . . . . . . . . . . . . . 215
Octane rating . . . . . . . . . . . . . . . . . . . . . . . 213
Recommendation............... .. ... 213
Refuelling .. .. .... ........... .. .. ... 216
Reserve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Saving fuel . . . . . . . . . . . . . . . . . . . . . . . . . 199
Tank capacity . . . . . . . . . . . . . . . . . . . . . . . 278
Unloc king the fue l filler flap by hand . . . . 217
Fue l economy messages (efficiency program) .25
F ue l filler flap
Unlocking the fuel filler flap by hand . . . . 217
Fue l supply too low . . . . . . . . . . . . . . . . . . . . 33
Fuses Assignment . . . . . . . . . . . . . . . . . . . . . . . . 267
Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . 266
G
Garage door opener (Homelink) . . . . . . . . . . 48
Gas discharge lamps . . . . . . . . . . . . . . . . . . . 269
290
Gauges
Engine coolant temperature . . . . . . . . . . . . 10
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . 11
General illu stration
Instruments and controls . . . . . . . . . . . . . . . 8
General rules and driv ing tips . . . . . . . . . . . 202
Before driving offroad . . . . . . . . . . . . . . . . 202
Driving offroad . . . . . . . . . . . . . . . . . . . . . . 202
Glossary of tire and loading terminology .. 237
Glove compartment . . . . . . . . . . . . . . . . . . . . 78
Cooling box . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Glow plug system
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 15
GPS controlled clock .................. . .
Gradient angle ...... .. ........... .. . .
Gross Vehicle Weight Rating (GVWR) ... . .
Ground clearance
H
Head lights 12
202
277
202
Adaptive light . . . . . . . . . . . . . . . . . . . . . . . . 54
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Headlight range control defective . . . . . . . 34
Left hand drive, r ight hand drive . . . . . . . . . 54
Rear fog lights . . . . . . . . . . . . . . . . . . . . . . . 53
T rave l mode . . . . . . . . . . . . . . . . . . . . . . . . . 54
Washer reservo ir . . . . . . . . . . . . . . . . . . . . 234
Washer system . . . . . . . . . . . . . . . . . . . . . . . 57
H d . ea restra ints . . . . . . . . . . . . . . . . . . . . . . . 138
Ad .
t· JUS mg . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Heated (upholder . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Ex terior mirrors . . . . . . . . . . . . . . . . . . . . . . 59
Rear window . . . . . . . . . . . . . . . . . . . . . . . . . 82
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Washer fluid nozzles . . . . . . . . . . . . . . . . . . 57
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Heavy clothing and safety belts . . . . . . . . . . 146
High beam . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5S
Warning/indicator lights . . . . . . . . . . . . . . . 17
High voltage warn ing label . . . . . . . . . . . . . 277
Hill descent assist . . . . . . . . . . . . . . . . . . . . . 193