2013 AUDI A5 COUPE radiator cap

18 Instrum ent s and w arn ing /indic ato r light s
...L Engine cooling system
A malfunction in the engine cooling system
must be repaired as soon as possible .
• Turn off engine and chec k coolant le vel
If the indicator light t urns on and the mes ­
sage appears, the coo lant temperature is too
high or the coo lant level is too low.
> Pu ll off the road.
> Stop the vehicle .
> Turn off the engine.
> Check coolant level ¢ page 223.
> Add coolant if necessary¢ page 224.
> Continue driving only after the eng ine cool­
ant warn ing/ indicator light goes out .
> Contact your authorized Audi dealer for as-
s istance if necessary .
If the engine coolant level is correct, then the radiator fan may be the cause of the malfunc­
tion .
• Coolan t tempe rature! Let engine run w ith
v eh icl e s tationary
If the indicator light turns on and the mes ­
sage appears in trailer mode*, let the engine
run at idle for a few m inutes to cool down.
A WARNING
- If your veh icle should break down for
mechanical or other reasons, park at a
safe distance from moving traffic, turn
off the engine and turn on the hazard
wa rning lights ¢
page 45, Emergency
flashers.
-
- Never open the hood if you see or hea r
steam or coolant escap ing from the en­
gine compartment - you risk being scald ­
ed. Wait until you can no longer see or
hear steam or coo lant escaping .
- The engine compartment of any vehicle
is a dangerous area. Before you perform
any work in the engine compartment,
turn of the eng ine and allow it to cool.
Follow the warning stickers¢
page 209,
Engine compartment .
(D Note
Do not continue driving if the . symbol
ill um inates . There is a malfunction in the
engine cooling system -you could damage
your engine.
@ -Steering column lock
• Stee ring d efec tive ! Do not dri ve vehicle!
If the indicator light turns on and the mes­
sage appears, there is an electronic steering
column lock malfunct ion. You cannot switch
the ignit ion on .
Do
not tow yo ur vehicle because it cannot be
steered . Seek professional assista nee.
l!J:I Steering lock : Cont act de ale r!
If the indicator light turns on and the mes­
sage appears, there is an e lectronic stee ring
co lumn lock malfunct ion .
Drive to your authori zed A udi dealer immedi­
ately to have the ma lfunction corrected .
A WARNING
-
Your vehicle must not be towed in the
event of a malfunction in the elect ronic
steering co lumn lock beca use it cannot be
steered due to the loc ked steering . If it is
towed with the steering locked, there is
the r isk of an accident.
© -Ignition lock
• Ignit ion lo ck defecti ve . Contact dealer!
If the indicator light turns on and the mes­
sage appears, do
n ot switch the ignit ion off
because you may not be ab le to sw itch it on
again.
Drive to your authorized A udi dealer immedi ­
ately to have the malfunction corrected .
On vehicles with convenience key*, the engine
shou ld not be switched
off using the
I S TAR T ENGINE ST OPI button beca use the en­
gine cannot be started again after the ignition
has been switched
off. ..,_

Starting the vehicle with the emergency
key
Applies to vehicles: with ignition lock
You can use the emergency key as an ignition
key in an emergency.
Fig . 75 G love compar tmen t: Adapter for emergency
key
Fig. 76 Insert emergency key into the adapter
.,.. Take the adapter for the emergency key out
of the glove compartment
<=:> fig . 75 .
.,.. Push the emergency key~
fig. 76 fully into
the adap ter . Make sure that the Audi r ings
are facing up.
.,.. Press the emergency key in the adapter
down until it latches audibly .
.,.. Insert the adapter with the emergency key
forward into the ignition switch . The engine
can now be started as usual.
Stopping the engine
App lies to vehicles: with ig ni tion loc k
.,.. Bring the vehicle to a full stop.
.,.. Automatic transmission: Move the selector
lever to the P or N pos ition .
.,.. Press on the ignition key. The engine is
tu rned off.
.,.. You can now remove the key.
On th e road 73
Ste ering lock
The steering locks when yo u remove the ig ni­
tion key . The lo cked steering helps prevent ve ­
hicle theft .
Emergency off
If it is necessary in unus ual circumstances, the
engine can be switched off while the veh icle is
moving. The engine will be switched off if you
press on the key for an extended period .
A WARNING
-Never turn off the engine before the ve­
hicle has come to a comp lete stop. The
full funct ion of the brake booster and the
power steering is not guaranteed . You
must use more force to turn or brake if
necessary. Because you cannot steer and
brake as you usually wo uld, this could
lead to crashes and ser ious injuries.
- For safety reasons , you should always
pa rk your vehicle w ith the selector lever
in P . Otherwise, the vehicle could inad ­
verten tly roll away .
- The radiator fan can continue to run fo r
up to 10 minutes even after you have
turned off the engine and removed the ignition key. The radiator fan can a lso
turn on again if the engine coo lant heats
up because of intense sunlight or heat
build-up in the engine compartment.
- Always take the key with you whenever
you leave your vehicle. Otherw ise, the
engine could be started or electrical
equipment such as the power windows
could be operated . This can lead to seri­
ous injury.
- Never leave children or persons requiring
assistance unattended in the vehicle. The
doors can be locked using the remote
transmitter, preven ting people from es­
caping from the veh icle on their own in
the event of an emergency. Depending
on the time of year, peop le inside the ve­
hicle can be exposed to very high or very
low temperatures .

-Apply the parking brake.
- Move selector lever of automatic trans-
mission to "P" (Park); put manual trans­
mission in Neutral.
- Always let the engine cool down . Hot
components will burn skin on contact.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment . Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood .
- Keep children away from the engine com­
partment .
- Never spill fluids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxili­
ary electric fan is temperature controlled
and can switch on suddenly.
- Never open the coolant reservoir cap
when the engine is still warm. The cool­
ant system is pressurized and hot cool­ ant could spray out .
-Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the
coolant reservoir .
- Do not remove the engine cover under
any circumstances. This increases the
risk of burns.
- If work on the fuel system or the electri­
cal system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or
open flames. Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and personal in­
jury while the engine is running or being
started, never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
-If you must perform a check or repair
with the engine running:
Checking and filling 217
- First, fully apply the parking brake,
move selector lever of automatic trans­
mission to "P" (Park); put manual
transmission in Neutral.
- Always use extreme caution to prevent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V -belts
or other moving parts, or from contact­ ing hot parts. Tie back hair before
starting, and do not wear clothing that
will hang or droop into the engine.
- Minimize exposure to emission and
chemical hazards~,& .
.8, WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de­
fects and reproductive harm. In addition,
certain fluids contained in vehicles and
certain products of component wear con­
tain or emit chemicals known to the
State of California to cause cancer and
birth defects or other reproductive harm.
- Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive harms. Wash hands after handling.
(D Note
When adding fluids, always make sure that
they are poured into the proper container
or filler opening, otherwise serious dam­
age to vehicle systems w ill occur.
@ For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly. If
you see spots from oil or other veh icle flu­
i ds, have your vehicle inspected by an au­
thorized Audi dealer . •
•

224 Check ing and filling
The location of the coolant expansion tank
can be seen in the engine compartment illus­
tration
¢ page 218.
To obtain an accurate read ing, the eng ine
must be switched off .
The expans io n tank in you r vehicle is equipped
with an e lectr ic cool ant level sensor.
When the coolant level is too low, the warning light in the A uto-Check System
¢ page 18 w ill
b link until you add coo lant and the level has
been restored to no rm al. Even though the re is
an e lec tric coolant level sensor, we s till rec ­
ommend you check the coolant leve l from
time to time.
Coolant loss
Coolant loss may indicate a leak in the cooling
system. In the event of coolan t loss, the cool ­
i ng system should be inspected immedia tely
by your authorized A udi dealer. It is not
enough merely to add coolant.
I n a
s e aled system, losses can occur only if
the boiling poin t of the coolant is excee ded as
a result of overheating.
A WARNING
The cooling system is unde r pressure and
can get ve ry hot. Reduce the risk of sca ld­
ing from hot coolant by following these
steps.
- Turn off the engine and allow it to cool
down.
- Protect yo ur face, hands and arms from
escaping fluid and steam by covering the
cap with a large, thick rag.
- Turn the cap slowly and ve ry carefu lly in
a counter-clockwise direction wh ile ap­
plying light, downward pressure on the
top of the cap .
- To avoid being b urned, do not spill ant i­
freeze or coolant on t he exhaust system
or hot eng ine parts. Unde r certain condi­
tions, t he ethy lene g lycol in engine cool­
an t can ca tch fire .
(D Note
Do not ad d any type of radiator leak sea l­
ant to your veh icle's engine coo lant. Add­
i ng radiator repa ir fluid may adverse ly af­
fect the funct ion and performance of your
cooling system and could result in damage not cove red by your New Veh icle L imited
War ran ty .
Adding coolant
Be very careful when adding engine coolant.
Before you check anyth ing in the eng ine com­
partmen t,
always read and heed all WARN­
INGS ¢ &. in Working in the engine compart ­
ment on page 216.
.. Turn off the engine.
.. Let the engine cool down.
.. Place a thick rag over the coolant expansion
tank ¢
page 223, fig. 172 and carefully turn
the cap counter-clockwise ¢
,&..
.,. Add coo lant.
.. Twist the cap on aga in
t ightly.
Replacement engine coo lant must confo rm to
exact spec ificat ions ¢
page 223, Coolant. We
recommend using on ly coo la nt add itive G 12+
+ , G 13 or in an eme rgency G12+. Do
not use a
different additive. In an emergency use plain
water until yo u can get the correct additive
and can restore the correct ratio . This sho uld
be done as soon as possible .
If you have los t a considerab le amount o f
coolant , then you sho uld add cold antifreeze
and cold wate r on ly w hen the engine is cold.
Always use
new engine coo lan t when refilling.
Do not f ill coo lant abov e the
"MAX" ma rk . Ex­
cess coo la nt w ill be fo rced o ut through the
pressure relief valve in the cap when the en­
gine becomes hot.
A WARNING
-= -
-The cooling system is under pressure and
can get very hot. Reduce the risk of ..,.

scalding from hot coo lant by following
these steps.
- Turn
off the engi ne and a llow it to cool
down.
- Protect your face, hands and arms from
escapi ng fl uid and steam by cover ing
the cap with a large, thick rag .
- Turn the cap slowly and very ca refully
i n a cou nte r-clockw ise dir ect ion while
a pply ing lig ht, downwa rd p ress ure on
the top of the cap.
- T o avo id being burned, do no t sp ill an­
tifree ze o r coolan t on t he exh aust sys­
tem or ho t engine parts . Un der certain
conditions, the ethylene glyco l in en­
gine coolant can catch fire .
- Antifree ze is poisono us. Always store an­
tifreeze in its or iginal co ntainer and we ll
o ut o f the reac h of children.
- If you drain the coolant , it must be
caught and safely stored in a p roper con ­
tainer clear ly marked "poison".
(D Note
- Coolant po llutes the env ironment and
could ca use a n engine fire . Excess coo l­
ant wi ll be forced out through the pres ­
sure re lief va lve in the cap when the en­
gine becomes hot.
- If, in an emergency, only water can be
added , the correct ratio between water
and antifreeze¢
page 223 must be re­
stored as soon as possib le .
@ For the sake of the environment
Drained coolant should not be re used . Al­
ways dispose of used c oolant while observ­
ing all envir onmental regulations .
Radiator fan
The radiator fan switches on automa tically by
itself
T he radiator fan is driven by the engine via the
V-be lt. The viscous clutch regulates the speed
of the fan according to the temperature of the
coolant .
Checkin g and fillin g 225
An auxiliary electric radiato r fan* sw itches on
and
off depending on coolant temperature
and othe r vehicle ope rat ing con ditions.
After yo u switc h the engi ne off, the aux iliary
f an can con tinue r unning for up to 10 minutes
- even with the ignition off. It can even switch
on again later by itself¢ & , if
- t he temperatu re of the engine coo lant rises
due to the heat b uild -up from the en gine in
the engi ne compartment, or
- the engine compartment heats up be cause
the vehicle is parked in intense sunlight.
A WARNING
- To reduce the risk of personal in jury nev­
er touch the radiator fan.
- The a uxiliary electric fan is temperat ure
contro lled and can switch on sud denly
even when the engine is not running.
- The a uxiliary radiator fa n switches on a u­
tomatically when the engine coo lant
reaches a certain temperature and will
continue to run until the coo lant temper­
ature drops .
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
qui ck glance.
Fig. 17 3 En gin e compar tment: Cover o n the brak e flu­
i d reservoi r
Before you check anyth ing in the eng ine com­
partment ,
always re ad and heed all WARN­
INGS c::> ,& in Working in the engine compar t-
ment on page 216 . .,..

28 6 Index .:..:..:..::....::.. ...:..._ ___________________________ _
Parking system ........... ... .. .... .
C leaning se nsors/camera . ... ... ... .
Rear 112
202
112
Rea r, with rear view camera ... .. .... . 113
Park ing system (rear) ................ 112
Adjusting the warning tones .. .... .. . 113
Park ing system (rear, w ith rear view cam-
e ra)
Q
Quartz clock . . . . . . . . . . . . . . . . . . . . . . . . 12
quatt ro ®
refer to all-wheel drive ........... .. 190
Question Wha t happens to unbelted occupants? 135
Why safety belts? ................. 134
Parking mode 1 .......... .. .. .... . 116
Park ingmode2 ........ .. .. .. .. .. . 117
R
Safety precautions ......... ... .... . 114
Switching on/off .......... ... .... . 115
Switching rear view camera on/off ... . 118
Parts rep lacement .................. 275
Pass-through . . . . . . . . . . . . . . . . . . . . . . . . 65
PASSENGER AIR BAG OFF light ....... . 153
Passive safety system ........ ... .. ... 124
Pedals .. .. ... ............ .. .. .. .. . 129
Phys ica l pr inc iples of a frontal coll is ion . 135
Polishing .. .. ................ ... ... 202
Pollutant filter (automatic AC system) ... 67
Powe r
seat adjustment . . . . . . . . . . . . . . . . . . . . 54
Power locking system . . . . . . . . . . . . . . . . . 32
Emergency locking ......... .... ..... 37
Panoramic tilting sunroof ...... .. .... 40
Powe r windows .......... .. .. .. .. .. 40
Rear lid .. .. ... .......... .. .. .. .. .. 39
Selec tive unlock feature ... .. .. .. .. .. 37
Se ttings ... ................ ..... .. 37
Power steering
refer to Electro-mechan ical power as-
sist . .. .. .. ............. .. .. .. .. . 189
Power window Conven ience opening/closing ... .. .... 40
Power windows .. . ...... ... .. .. .... .. 40
Malfunctions .............. .. .... .. 41
Pregnant women Specia l considerations when wearing a
safety belt . . . . . . . . . . . . . . . . . . . . . . . 139
Proper occupant seating posit ions .. ... 125
Proper safety belt pos it ion ..... .. .... . 138
Prope r seat ing pos it ion
F ront passenger . . . . . . . . . . . . . . . . . . . 126
Occupants . .... .. ..... ... .. .. .... . 125
Rear passengers ....... ... .. .. .... . 127 Radiator fan
225
Rain/light sensor Headlights .... .. .. ... ......... ... . 43
Intermittent (windshield wipers) ... .. . 49
Sensor defective . . . . . . . . . . . . . . . . . . . . 22
Reading lights . .. .. .. ........... .. .. . 46
Rear fog lights .. .. .. ... ....... ... .. . 43
Rear lid Escape handle ... ... .. ..... ... .. .. . 39
Open ing and closing ........... .... . 39
Rear l ight
De fective . . . . . . . . . . . . . . . . . . . . . . . . . 21
Rear view camera Parking mode 1
Pa rking mode 2 116
11
7
Rear view mirror . .. ............. .. .. . 47
Rea r window heating .. .. ..... .... . .. . 69
Rea r window su n shade ......... ... .. . 48
Recirc ulation mode (automatic climate
control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Ref uelling .. .... .. .. .... .... ... .. .. 213
Release lever for hood ............... 216
Remote contro l
Homelink ..... ... ................ 119
Remote contro l key . ... .......... .. .. . 33
Personalizing .... .. .... .... ... .. .. . 33
unlocking/locking . .. .. ..... .... . .. . 35
Remote rea r lid re lease .......... .. .. . 39
Repair manuals .. .. ... .......... .... 273
Repairs Airbag system ... ... .. ..... ... .. .. 155
Replacement key . . . . . . . . . . . . . . . . . . . . 33
Replacing Windsh ield wiper blades ............ . 50
Replacing b ulbs ... ... .. ..... ... .. .. 262
Replacing tires and wheels ............ 243