2013 AUDI RS5 CABRIOLET engine coolant

Before you check anything in the engine com­
partment,
al ways r ead and heed all W ARN­
ING S ¢ A in Working in the engine compart­
ment on page 207.
The "MIN" und "MAX" markings are found on
the bi-level disc in the interior of the coolant
expansion tank
¢ fig . 181.
.,. Park your vehi cle on a level sur face.
.,. Turn off the ignition .
.,. Let the engine coo l down .
.,. Place a thick rag over the coolant expansion
tank and
c a refully turn the cap counter ­
clockwise ¢
.&,.
.,. Read the engin e coolant le vel inside the
coolant expans ion tank ¢
fig. 180,
¢ page 209, fig . 177. With a cold engine,
the coolant leve l should be between the
" M IN" and "MAX" mark ings
¢ fig. 181
-arrows- . When the eng ine is warm, the lev­
el may be slightly above the "MAX" marking.
.,. The MAX marking may be covered with a
maximum of 1 mm of coolant when yo u
fill
coolant .
.,. Twist the cap on again tightly.
The location of the coolant expansion tank
can be seen in the engine compartment illus­
tration
¢ page 209.
To obtain an accurate read ing, the engine
must be switched off .
The expans ion tank in you r vehicle is equipped
with an electric coolant level sensor .
When the coo lant level is too low, the warning
light in the A uto-Check System¢
page 18 wi ll
b lin k until you add coo lant and the level has
been restored to norma l. Even though there is
an electric coolant level sensor, we sti ll rec­
ommend you check the coolant leve l from
time to time.
Coolant loss
Coolant loss may indicate a leak in the coo ling
system . In the event of coolant loss, the cool ­
i n g system should be inspected immediately
by your authorized Audi dealer. It is not
enough merely to add coolant.
Checkin g and fillin g 215
In a sealed system, losses can occur on ly if
the boiling point of the coolant is exceeded as
a resu lt of overheating.
Adding coolant
Rep lacement engine coolant must confo rm to
exact specificat ions¢
page 214, Coolant .
We recommend using only coo lant add itive
Gl2++, Gl3 or i n an emergency Gl 2+ . Do not
use a different add itive. In an emergen cy use
plain water until you can ge t the correct addi­
tive and can restore the correct ra tio. This
sho uld be done as soon as possib le .
If you have lost a cons iderab le amount o f
coolant, then you sho uld add cold ant ifreeze
and co ld water on ly when the engine is cold.
A lways use
new engine coo la nt when refilling.
Do not fill coolant above the "MAX" mark. Ex­
cess coolant will be fo rced out through the
pressure relief valve in the cap when the en­
gine becomes hot.
_& WARNING
- Th e cooling system is un der pressure and
can get very hot. Reduce the risk of
scalding from hot coolant by following
these ste ps.
- Turn off the engine and allow it to coo l
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering
the cap w ith a large, th ic k rag.
- Turn the cap s lowly and very carefully
i n a counter-clockwise direction while
applying light, downward pressure on
the top of the cap.
- To avoid being bu rned, do not spill an­
tifree ze or coolant o n the ex haust sys­
tem o r hot engine p arts. Under ce rtain
con ditio ns, the ethy lene glycol in en­
gine coolant can catch fire.
- Antifreeze i s poisonous. Always s tore an­
tifreeze in its original container an d well
out of the reach of children .
Ill-
•
•

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 . .,._

26 6 Con sum er Inf ormation
-Always make sure the transmission se­
lector lever (automatic transmiss ion) is
in "P" (Park position) and the park brake
is f irmly app lied .
@) For the sake of the environment
-Changing the engine settings wi ll ad­
versely affect em iss ion levels. This is det­
rimental to the environment and increas­
es fuel consumption .
- Always observe env ironmental regula­
tions when dispos ing of old engine oil,
used brake fluid, dirty engine coolant,
spent batteries or worn out tires.
- Undeployed airbag modules and preten­
s ioners might be classified as Perchlo ­
rate Material -spec ial handling may ap­
ply, see www.dtsc.ca .gov/hazardous­
waste/perch lorate . When the veh icle or
parts of the restraint system including
airbag modules safety belts wit h preten ­
sioners are scrapped, all applicable laws
and regulations must be observed. Your
authori zed Aud i dea ler is familiar with
these requirements and we recommend
that you have your dealer perform this
serv ice for you .
Additional accessories,
modifications and
parts replacement
Additional accessories and parts
replacement
Always consult an authorized Audi dealer be­
fore purchasing accessories.
Your veh icle incorporates the latest safety de­
sig n featu res ensu ring a high standard of ac­
tive and passive safety .
This safety could be compromised by non-ap­ proved changes to the veh icle. For this reason ,
if pa rts have to be replaced , please observe
the following points when install ing addition­
a l accessories: Approved Audi accessories and genuine Aud
i
parts are available from authorized A udi deal­
ers.
T hese dea le rs a lso have the necessary facili­
ties, tools and trained specialists to install the parts and acc essories proper ly .
A WARNING
-Using the wrong spare parts or using non-
approved accessories can cause damage to
the veh icle and ser ious persona l injury.
- Use on ly accessories express ly approved
by Audi and gen uine Audi spare parts
- These parts and accessories have been
specia lly designed to be used on yo ur ve­
h icle .
- Never install accessor ies such as tele­
phone crad les or beverage ho lders on a ir­
bag covers or within the airbag deploy­
ment zones . Do ing so will increase the
risk of injury if a irbags are triggered in an
accident!
- Before you check anything in the engine
compa rtment, always read and heed a ll
WARNI NGS
9 page 200 .
(D Note
-If items other than genu ine Audi spare
parts, add-on equipment and accessory
items are used or if repair work is not
performed accord ing to specified meth­
ods, this c an resu lt in seve re damage to
your vehicle's eng ine and body (such as
corrosion) and adversely affect yo ur vehi ­
cle's warranty .
- If emergency repairs must be performed
elsewhere, have the vehicle examined by
an authorized A udi dealer as soon as
possible .
- The manufacturer cannot be held liable
for damage wh ich occ urs due to failure
to comply with these stipu lations.

270 Index
Automatic climate control Air vents ... ............... .. .... .. 71
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 70
Setup . .. ............... .. .. .... .. 72
Automatic power top ....... .. .. .... .. 42
Automatic transmission . . . . . . . . . . . . . . . 85
Emergency release . . . . . . . . . . . . . . . . . . 91
Removal lock (ignition key) . .. .. .. .. . . 74
S tron ic .. .... ........... .. .. .... .. 85
also refer to S tron ic transmission ..... 85
Automatic wipers .............. .. .. .. 57
Auto Safety Hotline ................. 126
Average speed . . . . . . . . . . . . . . . . . . . . . . . 25
Avoid damaging the vehicle . . . . . . . . . . . 184
B
Battery . . . . . . . . . . . . . . . . . . . . . . . 17,217
Battery location inside the luggage com-
partment .. ............... .. .... . 218
Charging . .. ..... ........... ... .. . 219
Important warnings when working on
the battery . .............. ... .. ... 218
Jump starting . ........... .... .... . 255
L ow . .. .. ............... .. .. .... . 182
Replacing the battery .............. 221
State of charge . . . . . . . . . . . . . . . . . . . . 182
Winter operation .......... ... .... . 217
Working on the battery .... .. .. .. .. . 218
Before driving ... .......... .. .. .. .. . 118
Belt positioner .. .... ...... .. .. .. .. . 132
Blended gasoline .................. . 202
Blower (automatic climate cont rol) . . . . . . 71
Body cavity sealing ......... .. .. .... . 196
Booster seats .............. ... .... . 166
Brake fluid Changing the brake fluid ....... .. .. . 217
Check ing the brake fluid level . .. .. .. . 216
Reservoir .. ............. .. .. .. .. . 216
What is the cor rect brake fluid level? .. 216
What should I do if the brake fluid warn-
ing light comes on? ........ ... .. .. . 216
Brake system .............. .. .. .... . 216
Anti-lock braking system . .. .. .. .... .. 19
Brake assist system ....... .. .. .. .. . 176
Brake fluid ............... ... .... . 216
Brake fluid specifications for refill and re­
placement . . . . . . . . . . . . . . . . . . . . . . . 217 Brake light defective .
. . . . . . . . . . . . . . . 21
Brake power assist unit .......... ... 178
Brakes ... ... .. .. .. .............. . 178
Ceramic brakes . .. ............. .... 178
Electromechanical parking brake . .... . 79
Warning/indicator lights ............. 15
Worn brake pads symbol . . . . . . . . . . . . . 20
Braking Emergency braking function ..... .. .. . 81
braking guard . .. . .. ............ .. .. . 92
Messages ..... .. .. .............. .. 99
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Break-in period .. .. ... .......... .. .. 184
Tires ... .. .. .. .. .. ... ........ .. .. 184
Bulbs ...... .. .. .. .. ........... .... 254 C
California Proposition 65 Warning ... .. 208
Battery specific . . . . . . . . . . . . . . . . . . . 219
Capacities . ..... .. .. .............. . 263
Car care ...... .. .. .. ...... ..... .. .. 189
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Plastic and vinyl .. ............. .... 194
Care of exterior .. .. ............. .... 189
Cargo area
refer to Luggage compartment... 67, 124
Catalytic converter . ............. .... 185
Center armrest . . . . . . . . . . . . . . . . . . . . . . 64
Central locking .... ................ .. 31
Central locking switch ............... 35
Convenience key .. ............. ..... 35
Remote contro l key . . . . . . . . . . . . . . . . . 34
Ceramic brake rotors New brake pads .. ................ . 178
Certification .. .. .. .......... ...... . 267
Changing a flat tire ................. . 245
Changi ng a wheel ... .............. .. 245
Changing engine oil ............... .. 213
Chassis Undercoating .... ................ . 196
Checking Engine coolant level .............. .. 214
Checking tire pressure ..... ...... .. .. 228

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
•
•

272 Index
Data recorder ..... ..... ... .. .. .... . 176
Date display . .............. ... .. ... . 12
Daytime running lights. . . . . . . . . . . . 52, 53
Declaration of compl iance
Adaptive cruise control . ... .. ... ... . 267
Audi side assist .. ..... ... .. .. .... . 267
Ce ll phone package .. ... .. .. ... ... . 267
Convenience key ..... ..... .... .... . 267
Electronic immobili zer ..... .. .. .. .. . 267
H omelink ® universal remo te control . . 267
Remote control key ........... .. .. . 267
Defective light bulb warning . . . . . . . . . . . 2 1
Defrosting (w indows) ..... .. .. .. .. .. .. 71
Determin ing correct load limit . .. .. ... 230
D igita l clock ............. ... .. .... .. 12
Dig ita l compass ............ ... .. .. .. 59
Dimensions .. ............... .. .... . 262
D imm ing the rea rview mir ro r .. .. .. .. . . 56
Doors emergency lock ing . ..... .. .. .. .. .. .. 36
Driver information system Eng ine oil temperature indicator ...... 28
Open door or front lid warning . . . . . . . . 24
Outside temperature display .. .... .. .. 24
Sound system display . . . . . . . . . . . . . . . 24
Driver seat
refer to Seat ing pos ition . . . . . . . . . . . . 119
Driving safely ............. .. .. .. .. . 118
Driving through water . . . . . . . . . . . . . . . 184
Driving time . . . . . . . . . . . . . . . . . . . . . . . . 25
Dust filter
refer to Po llutant filte r (automatic AC
sys tem) .. .. ............. .. .. .... .. 69
Dynamic steering . . . . . . . . . . . . . . 104 , 180
E
Easy entry function ......... .. .. .. .. .. 63
Electro -mechanical power assist . . . . . . . 180
Electromechanical park ing brake
E me rgency braking ....... .. .. .. .. . . 81
I ndicator ligh t . . . . . . . . . . . . . . . . . . . . . 79
Par king .. .. .. . .......... .. .. .. .. .. 80
Releasing and clos ing ... .. .. .... .. . . 79
Starting assist . .. ..... ... .. .. .... .. 80
Starting from rest ..... ... .. .. .... .. 80
Warn ing/ indicator lights ..... .. .... .. 16 El
ectronic differential lock ( EDL) . . . . . . . 176
Warning/indicator lights ..... ... .. .. . 19
El ectronic immob ilizer . . . . . . . . . . . . 12, 3 7
Electronic power control (EPC) warning/indicator light . . . . . . . . . 20
E lectronic Stabilization Contro l (ESC) . .. 176
Warning/indicator lights ..... ... .. .. . 19
E mergen cy actua tion
Doors .. .. .. .. .. .. ........... .. .. . 36
Ignit ion key ..... ... .. ..... .... . .. . 34
Emergency brak ing .... .. .. ... ..... .. . 81
Emergency flasher . . . . . . . . . . . . . . . . . . . 54
Warning/ind icator lights ........ .. .. . 22
E mergency key . . . . . . . . . . . . . . . . . . . . . . 32
Starting engine . ... ... ..... ... .. .. . 76
Emergency operation Emergency bra king funct ion (pa rking
brake) .. .. .. .. .. .. ... ........ .. .. . 81
Luggage compartment lid . . . . . . . . . . . . 38
Power top ..... .. .. ... ..... ... .. .. . 47
Emergency starting ................ . 255
Emergency towing . ............. .... 257
E nergy management ............ .. .. 182
Battery power . . . . . . . . . . . . . . . . . . . . . 17
Drive r notif ication . . . . . . . . . . . . . . . . . . 17
Engine Compartment .. .. ... .......... .. .. 209
Coolant . .. .. .. .. ............. .. .. 214
Hood . .... .... ................... 207
Starting . . . . . . . . . . . . . . . . . . . . . . 7 4 , 77
Starting with jumper cables ... .. .. .. 255
Stopping . . . . . . . . . . . . . . . . . . . . . . 76, 78
E ngine compartment
Sa fety instr uctions ............. .... 207
Working the eng ine compartment 207
Engine coolant In dicator light ... ............. .... . 18
Engine coolant system ........... .... 214
Adding coolant ..... ... ..... ... .. .. 214
Checking coolant level .............. 214
Checking the engine coo lant level . .. .. 214
Radiator fan . .. .. ............. .. .. 216
Engine coolant temperature Temperature gauge .............. .. . 10
Engine data ..... .. .. ... ..... ... .. .. 263