cooling AUDI RS5 CABRIOLET 2013 User Guide

216 Check ing and filling
-If you drain the coolant, it must be
caught and safely stored in a proper con­
tainer clearly marked "poison".
(D Note
-Do not add any type of radiator leak seal­
ant to your vehicle's engine coo lant.
Adding rad iator repair fluid may adverse­
ly affect the function and performance of
your cooling system and could result in
damage not covered by your New Vehicle Limited Warranty .
- Coolant pollutes the environment and
could cause an engine fire . Excess cool­
ant wil l be forced out through the pres­
s u re re lief valve in the cap when the en­
gine becomes hot.
- If, in an emergency , only water can be
added, the correct ratio between wate r
and antifreeze
c::> page 214 must be re ­
stored as soon as possib le .
@ For the sake of the environment
Dra ined coolant should not be reused. Al­
ways dispose of used coolant while observ­ ing all environmental regulations.
Radiator fan
The radiator fan switches on automatically by
itself.
The radiator fan is dr iven by the engine via the
V-be lt . T he viscous clutch regulates the speed
of the fan accord ing to the temperature o f the
coolant .
A n auxiliary e lectr ic radiator fan* switches on
and off depending on coolant temperature
and other vehi cle operating conditions.
After you switch the engine off, the auxiliary
fan can cont inue runn ing for up to 10 minutes
- even with the ignition off.
It can even sw itch
on again later by itself
c::> .&. , if
- the temperature of the engine coolant rises
due to the heat bu ild-up from the eng ine in
the engine compartment, or -
the engine compa rtment heats up because
the vehicle is parked in intense sunlight.
.&_ WARNING .........
- To reduce the risk of personal injury nev­
er touch the radiator fan.
- The auxiliary electric fan is temperature
contro lled and can switch on suddenly
even when the engine is not running.
- The auxiliary radiator fan sw itches on au­
tomatically when the engine coo lant
reaches a certain temperature and will
continue to run until the coolant temper ­
ature drops .
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
quick glance.
Fig . 182 Engin e compart men t: Cove r on the b rake flu­
id reservoi r
Before you check anyth ing in the engine com­
partment,
a lwa ys re ad and hee d all WARN­
ING S c::> .&. in Working in the engine compart­
ment on page
207.
~ Read the brake fluid level from the brake
fluid reservoir
c::> fig. 182, c::> page 209,
fig . 177. The brake fluid level must be be­
tween the "MIN" and "MAX" markings .
The brake fluid reservoir is located at the rear
partition of the engine compartment on the
left s ide
c::> page 209.
The fluid level may drop
slightly after some
t ime due to the automatic adjustment of the
brake pads. This is not cause for a larm . .,._

Child restraints
Dang er of using chi ld rest raints in th e
front seat . . . . . . . . . . . . . . . . . . . . . . . . 138
Where can I get addit ional information
about child restra ints and their use? . . 175
Ch ild restra int system anchors ... .. .. . 172
Ch ild safety .. ................ ... ... 158
Convertible locking retractor .. .. .. .. . 168
I mportant safety instr uctions fo r using
ch ild safety seats ......... .. .. .. .. . 16 1
I mportant things to know when dr iv ing
with chi ld ren .... ..... ... .. .. .. ... 158
Instal ling a chi ld restraint using the
LATCH system ............ .... .. .. . 174
Lower anchorages ........ .. .. .. .. . 173
Mounti ng and releasing the anchorage
hook .. .. ... ............. ...... .. 174
Ch ild safety seats ... .... ... .. .. .. ... 164
Booster seats ............ .... .. ... 166
Convertible c hild seats .... .. .. .. .. . 165
Convertible locking retracto r . . . . . . . . . 168
Danger of us ing ch ild restra ints in the
fro nt seat ............ ...... .... .. 138
H ow do I proper ly install a child safety
se at in my vehicle? ........ .. .. .. .. . 16 1
I nfant sea ts ............. .. .. .. .. . 164
I ns tal ling .. .... .. .... ... .. .. .. ... 168
L A TCH system .. .. ..... ... .. .. .. ... 17 4
Safety inst ructions ..... ... .. .. .... . 16 1
Unused safety belts on the rear seat . . 163
C igare tte lig hte r . . . . . . . . . . . . . . . . . . . . . 6 6
C lea ning
A lcantara ® (synth etic suede) .. .. .. .. . 199
E ng ine compartment ...... .. .. .. .. . 200
E xha ust tail p ipes ......... .. .. .. .. . 196
Fab rics and fabr ic coveri ngs .. .. .. .. . 19 7
I ns trumen t panel . ..... ... .. .. .. .. . 19 7
I nterior .... .. .... .... ... .. .. .. ... 196
L eather .... .... .. .... ... .. .. .. ... 199
Matte fin ish pa int ........ .. .. .. .. . 192
MMI disp lay/controls ...... .. .. .. .. . 196
Plastic and v inyl . .......... ... ... .. 194
P lastic pa rts . . . . . . . . . . . . . . . . . . . . . . 197
Safety belts ..... .. ...... .. .. .. .. . 200
Trim str ips . .. ........... .. .. .. ... 194
Cleaning and protection ..... .. .. .. .. . 189
Climate con trols . . . . . . . . . . . . . . . . . . . . . 69
Inde x 271
Climate control system
Automatic recirc ulation . ..... ... .. .. . 72
synchronizing . . . . . . . . . . . . . . . . . . . . . . 72
Clock .... .. .. .. .. .... ........... .. . 12
Clos ing
Power w indows .. .. ... ....... .... .. 39
Closi ng/ope ning
at the lock cylinder . . . . . . . . . . . . . . . . . . 36
by remote control . . . . . . . . . . . . . . . . . . 34
with t he centra l locking sw itch ... .. .. . 35
with the conven ience key ........... .. 35
Cold tire inflation press ure ..... ... .. .. 226
Coming home . . . . . . . . . . . . . . . . . . . . . . . 53
Compass in the m irror ............... . 59
C ompliance ... .... .. . .. .. ..... ... .. 267
Consumer Information . . . . . . . . . . 126, 264
Contacting NHTSA . ................. 126
Co nvenience key
Ind icator lights . ... .. .. .... ... .. .. . 78
Starting engine (S TA RT E NGIN E STOP
button) ... .. .. .... . ... ...... ... .. . 77
Stopping the eng ine (START ENGINE
STOP button) . . . . . . . . . . . . . . . . . . . . . . 78
Switching on ignit ion ............... .
77
unlocking/locking .. .............. .. 35
Convenience opening/closing
Conve rtib le child safety seats
Convertib le loc king retractor ..
... .. .. . 40
165
Activati ng . . . . . . . . . . . . . . . . . . . . . . . . 170
Deact ivati ng .. ... .. ..... .......... 170
U sing to secu re a child safety seat 1.68, 170
Coolant system . . . . . . . . . . . . . . . . . . . . . 214
Cooling m ode (automat ic cl im ate control) 70
Cooling System Expansion tank ... .. . .. .... .... .. .. 214
Cornering light . . . . . . . . . . . . . . . . . . . . . . 52
Cr uise cont ro l
Changi ng speed .. ................. . 83
P resett ing your speed ... .... ... .. .. . 83
Switching off . ..... . .. .. ..... ... .. . 83
Switch ing on ... .. .. .. .. .. .... ... .. . 82
C ruisi ng range . . . . . . . . . . . . . . . . . . . . . . . 25
(upholder .. .. .. .. .. . .. .. ..... ... .. . 66
D
Data ....... .. .. .. ................. 263
•
•