2013 AUDI TT coolant temperature

10 Instruments and warning/indicator lights
Instruments and warning/indicator Lights
Instruments
Instrument cluster and controls
The instrument cluster is your central source of information.
Fig. 3 Overv iew of the inst rument cluster
(D Tachometer with time and date
dis play .. .... ..... ........ .
@ Coolant temperature gauge .. .
® Fuel gauge ................ .
© Speedometer with odometer ..
® Set/Check button ..... ... .. .
@ Driver information display
(?) Reset button for
- Trip odometer .......... .. .
- Service indicator
@ Tips
10 ,11
11
12
12
11
22
12
28
- When switching the ignition on, the nee­
dles in the instrument cluster move up­
ward briefly.
- The illumination for the instrument clus ­
ter lights up whenever you switch on the
i gnition with the
vehicle headlights off .
As the daylight fades, the instrument
cluster illumination likewise dims auto­
matically a nd will go out completely
when the outside light is very low. This
feature is meant to remind you to switch
on the head lights when outside light
conditions become poor .
Tachometer (engine rev counter)
The tachometer indicates the engine RPM
(revolutions per minutes) .
en 0
~
~
"'
If engine RPM drops below 1,500, you should
downshift to the next lower gear. The red area
at the end of the scale indicates maximum
permissible engine RPM after the br eak-in pe­
riod. Before reaching this area, move these­
lector lever to position "D (Drive)" or ease
your foot off the acce lerator pedal.
(D Note
The tachometer needle should only briefly
be in the red zone: you could damage your
engine! The beg inning of the red zone var­
i es depending on the engine.
@ For the sake of the environment
Upshifting early saves fuel and reduces en­
gine noise.

Instrument s and warning /indicator lights 11
Digital clock with date display
Your vehicle is equipped with a quartz con­
trolled digital clock .
Fig. 4 In str um en t cl uste r w it h t he dig ita l cloc k
To set the hour
.. Pu ll t he knob (hour d isp lay flashes) and
tu rn it t o the left or rig ht.
To set the minutes
.. Pull the knob as ma ny times as necessary
un til the mi nute display flash es.
.. Turn the knob to the left or r ight .
To set the date
.. Pull the knob as many times as necessary
until the day, month or year display flashes.
.. Turn the knob to the left or right .
To hide or d isplay the d ate
.. Pull the knob as many times as necessary
unti l the date display flashes.
.. Turn the knob to t he left or r ight.
When the date disp lay stops blinking, this
means the time and date have been success­
fu lly stored.
W ith the ignition off, pushing or pulling the
Set/Check button¢
page 10, fig . 3@ can
turn on the dis play f ie ld lighting for a few sec ­
onds .
Engine coolant temperature gauge
The engine coo la nt gauge ¢ page 10 , fig. 3@
only works when the ign ition is on. To prevent
damage to your e ngine, please note the fo l­
l owing important points:
Engine cold
As long as the nee dle rem ains a t the left end
of the gauge, the engine s till h as not reac hed
its operating temperat ure. Avoid high engine
speeds, heavy engine loads and heavy throt­
tle.
Normal temperature
W hen the engine has re ache d its ope rat ing
temperature, the need le w ill move into the
mid dle of t he gauge and rema in there .
If the
engine is working hard at high outside tem ­
peratures, the needle may turn fu rther to the
right. This is no cause for concern as long as
the . warni ng lig ht in the inst rument cl uster
does not illuminate .
When the. war ning light starts to flash,
th is can mean one of two thi ngs: either the
coolant
temperature is too high, o r the coo l­
ant
level is too low ¢ page 16 .
A WARNING
--Always obs erv e th e warn ing in
¢ page 1 7 4, Engine compar tment be ­
fore opening the eng ine ho od and check­
in g the eng ine coolan t leve l.
- N ever open t he eng ine hood if you see or
he ar ste am, or if you see engi ne coo lant
drippi ng from t he en gine compar tment .
You could bur n yourse lf . Let the en gin e
coo l off fi rst u ntil yo u can n o longe r see
or hear steam or coolant escap ing.
(D Note
- M ounting ad ditiona l lights or accessories
i n fr ont of the air inlets reduces the coo l­
ing effect of t he radiato r. At high o utsi de
tempe rat ures or h igh engine load, the
eng ine could overheat.
- The front spoiler has been designed to
properly d istribute the cooling a ir when
the vehicl e is movi ng. If the spoiler is
damaged, this c ould reduce the coo ling
e ff ect a nd th e eng ine could then ove r­
h eat . As k yo ur au thori zed A udi deal er for
a ssis tan ce.

16 Instrum ent s and w arn ing /indic ato r light s
_& WARNING
If you have a malfunction in the safety sys ­
tems, contact your authorized Audi dealer
immediate ly. Otherw ise the safety sys­
tems may not work properly in an acci­
dent.
~ Safety belt warning light
App lies to vehicles: with safety belt warning light
The warning light is a reminder to fasten
safety belts.
The warning light . comes on for a few sec ­
onds after the ignition is switched on as a re­
minder to fasten your safety be lt.
Addit ional info rmation on safety be lts
¢ page 100.
0 Generator
This warning/indicator light detects a mal­
function in the generator or in the vehicle's
electrical system .
The. warning/ind icator light illuminates
when yo u switch on the ignit ion and must go
out after the engine has started .
I f the . warning/indicator light illum inates
while you are driving, yo u should contact you r
author ized Audi dealer. Since the veh icle bat­
tery is discha rging, you should switch
off any
unnecessary electrical consumers (for exam ­
p le, the air conditioner).
~ Engine oil pressure
The red engine oil pressure warning symbol
requires immediate service or repair.
I f the . symbol appears in the display and
flashes, the oil pressure is too low . In addition
to the symbo l, the following message a lso ap­
pears in the d isp lay:
S wi tch off en gin e! Oil pr essure is t oo low
• Pull off the road and stop the vehicle .
• Shut the engine down.
• Check the eng ine oil level¢
page 185.
• Contact your authorized Audi dealer for as-
sistance if necessary .
Engine oil level too low
If the engine oil level is too low , top off oil to
t h e proper level
¢ page 185.
Engine oil leve l OK
If the . symbol starts flashing again even
though the eng ine oil level checks OK on the
dipstick,
do not start dri ving again and d o
not l et th e engine run at idl e.
Instead, con­
tact yo ur auth o rized Aud i dea ler fo r ass is­
tance .
(D Tips
- The engin e oil pr essure symbol. is
n ot an indi cato r for a l ow eng in e oil lev ­
e l. Do not rel y on i t. In ste ad, che ck th e
o il le vel in yo ur engine at regul ar inter­
vals, p referably ea ch time you refuel ,
a nd a lw ay s befo re going on a long t rip.
- The yellow oil le vel warning indication
Ill r equires oil refill or wor kshop s erv ­
ic e w ithout delay. Do not wait until the
red oil pressure warni ng sy mbol.
s tarts to flash before you re spo nd to
th e lo w oil level warning
111-By then,
y our engin e may already ha ve suffer ed
s er iou s damag e.
-L Engine cooling system
A malfunction in the engine cooling system
must be repaired as soon as possible .
When the. symbol in the d isplay flashes,
then either the engine coolant
temperature i s
too high, or the coolant
level is too low . In ad­
dition to the symbo l, the following message
also appears in the d isp lay:
Swit ch off en gin e and chec k coolant level
• Pull off the road and stop the veh icle.
• Turn
off the engine.
• Check coolant level
¢page 187.
• Add coolant if necessary¢ page 188.
• Continue driv ing on ly after the engine cool-
ant wa rning/ind icator light goes out. ..,.

66 Warm and cold
Warm and cold
Climate controls
Controls
The air conditioning automatically maintains the selected temperature in the vehicle interior
throughout each season .
Fig. 68 Climate contro ls
We recommend the following sett ing :
> Rotate the knob ¢ fig. 68 @to the right to
switch on the air conditioning .
> Set the temperature to 72 °F (22 °() .
> Press the !AUTO I ¢ fig . 68 button .
Using the previously recommended setting is
the quickest way to achieve a comfortable cli ­
mate in the vehicle . This setting should there­
fore only be changed when persona l comfort
l eve ls or ce rtain circumstances requi re it .
The climate controls are a combination of au ­
tomatic heating and ventilation systems and a
coo ling system which dehumidifies and coo ls
the air ins ide the veh icle.
The climate controls automatically maintain a temperature once it has been set . The tem­
perat ure of the air from the vents, fan speed
(air vol ume) and ai r d ist ribution are also auto­
mat ical ly adjusted . The system also takes into
account strong s unshine so that manua l ad­
justment is not necessary. So in almost all cases,
a ut om at ic mode offers the best cond i­
tions for the comfort of the occupants at all
times of the year ¢
page 69.
Please not e:
In cooling mode , relative humidity in the inte­
rior is reduced . This prevents the w indows
from fogg ing up.
When relative hum idity and temperatures
outside are high ,
conden sati on can drip from
the a ir condition ing evaporator and form a
pool of water under the vehicle. This is normal
and not an ind ication of a leak!
When outs ide temperatures are low, the fan
does not switch to a higher speed until the
coolant has reached an adequate tempera ­
tu re, with the exception of the defrost set­
t ing.
When accelerating at wide-open throttle, the air conditioning compressor is temporarily
switched off to ma intain full engine power .
In order to ensure engine cooling under ex­
treme engine loads, the compressor is switch­ ed off if coolant temperatures climb too high.
Funct ions are set by turning the rotary knob
or switched on and off by tapp ing the buttons.
II>

CD Note
-Avoid high engine speeds, fast accelera­
tion or heavy engine loads whi le the en­
gine is still cold. This could damage the
engine.
- The engine cannot be started by pushing or towing the veh icle.
@) For the sake of the environment
To avoid unnecessary engine wear and to
reduce exhaust emissions, do not let your
veh icle stand and warm up. Be ready to
drive off immediately after starting your
veh icle. Maintain moderate speed until the
eng ine is completely warm . Remember,
the engine performs best at operating
temperature .
Stopping the engine
~ Turn the ign ition key to position @
~page 71, fig. 71.
_& WARNING
-Never turn off the engine before the ve­
hicle has come to a complete stop. The
full function 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 would, this could
lead to crashes and serious injur ies.
- The radiator fan can continue to run for
up to 10 minutes even after you have
turned
off the engine and removed the
ignition key . The radiator fan can also
turn on again if the engine coolant heats
up because of intense sunlight or heat
build-up in the engine compartment.
CD Note
Do not stop the engine immed iate ly after
hard or extended driving. Keep the engine
running for approximately two minutes to
prevent excessive heat build-up.
On the road 73
Parking brake
Parking brake
When the parking brake is set, it prevents the
vehicle from rolling away unintentionally .
Fig. 72 Center console: Parki ng b rake set
Setting the parking brake
~ Pull the park ing brake lever all the way up.
Releasing the parking brake
~ Pull the parking brake lever up slightly and
press the release button at the same time
~ fig. 72 -arrow-.
~ Keep the release button pressed and lower
the parking brake~&_ .
If you should drive
off with the parking brake
still set, a warning tone will sound and the
follow ing will appear in the instrument clus­
ter to rem ind you to release the parking
brake:
Handbrake is applied
The parking brake warning comes on only af­
ter you have driven for longer than 3 seconds
and faster than 5 mph (5 km/h) .
The parking brake warning light_
(USA)/ . (CON) illuminates when the park­
ing brake is set and you switch on the ignition .
A WARNING
Always re lease the park ing brake com -
pletely. A partially engaged brake will
overheat the rear brakes, reduce their ef­
fectiveness and cause excessive wear. This
could lead to brake failure and an accident. .,.

-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 181
- 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 wear no 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
id s, have your vehicle inspected by an au­
thorized Audi dealer . •
•

@ For the sake of the environment
- Before changing your oil, first make sure
you know where you can properly dispose of the used oil.
- Always dispose of used engine oil proper­
l y. Do not dump it on garden soi l, wood­
ed 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.
Engine 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 sea led and generally re­
qu ires little at tention.
The cooling system has been filled at the fac ­
tory with a permanent coolant which does not n eed to be changed. The coolant consists of a
mixture of wa ter and the man ufacturer's g ly ­
col-based coolan t addi tive Gl3 ant ifree ze
with ant icorrosion add itives (50% for USA
models; 60% for Canadian models) . This mix­
ture both assures the necessary frost protec ­
tion and protects metal components in the
engine's cooling system from corrosion and
scaling. It also raises the boiling po int of the
coolant.
Do not reduce the concentration of the coo l­
ant in the summer by adding plain water.
The
proportion of coolant add itive must be at
lea st 50°/4 but not more than 60°/4
to ma in­
tain antifreeze protection and cooling efficien­ cy. If the coolant frost pro tect io n is too low,
the coolant cou ld freeze and dam age the veh i­
cle heating and eng ine cooling system.
For year-round driving, antifreeze is added at
the facto ry for temperatures down to:
- -31°F( -35°C)USA
- -40 °F ( -40 °C) Canada.
Checkin g and fillin g 187
A WARNING
Before you c heck anything in the engine
compartment, always read and heed all
W ARNI NGS~ &.
in Working in the engine
comportment on page 180.
(D Note
- Before winter sets in, have the coolant
checked to see if the coolant additive in
your v ehicle is sufficient to meet the cli­
mate conditions. This is especia lly impo r­
t an t if you live in a region where t he win­
t er is ex treme ly cold. If ne cessary, in­
cr ease t he p ro portion of coo lant add itive
to 60%.
- Whe n adding cool ant additive to yo ur
c ooling sys tem, remember:
- We recommend us ing on ly coolant ad­
d itive Gl2++ or Gl3 (check the labe l)
for your veh icle. This coolant additive is
ava ilable at autho rized Aud i dea le rs.
Othe r types of antifree ze can sig nifi­
cantly reduce cor ros io n protec tion. The
res ulting co rrosion can cause a loss of
coolant an d serio us en gine damage.
- Do not add any type of rad iator le ak seal­
ant to yo ur vehicle 's eng ine coolant .
Adding radiator repair flu id may adverse­
ly affect the function and performance of
your cooling system and co uld resu lt in
damage not covered by you r New Ve hicle
Limited War ranty.
Checking the engine coolant level
The engine coolant level con be checked with
a quick glance.
Fig. 138 Eng ine compa rtment : cove r on t he coola nt
expansio n tank

-To avoid being burned, do not spill an­
tifreeze or coolant on the exhaust sys­ tem or hot engine parts. Under certain
conditions, the ethylene glycol in en­
gine coolant can catch fire.
- Antifreeze is poisonous. Always store an­
tifreeze in its original container and well out of the reach of children.
- If you drain the coolant, it must be
caught and safely stored in a proper con­
tainer clearly marked "poison".
(D Note
- Coolant pollutes the environment and
could cause an engine fire. Excess cool­
ant will be forced out through the pres­
sure relief valve 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 187 must be re­
stored as soon as possible.
@ For the sake of the environment
Drained 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 electric radiator fan is controlled by ther­
moswitches that switch on and off depending
on coolant and engine compartment tempera­
tures.
An auxiliary electric radiator fan* switches on
and off depending on coolant temperature
and other vehicle operation conditions.
After you switch the engine off, the auxiliary
fan can continue running for up to 10 minutes
- even with the ignition off.
It can even switch
on again later by itself
c::> &., , if
- the temperature of the engine coolant rises due to the heat build-up from the engine in
the engine compartment, or
Checking and filling 189
- the engine compartment heats up because
the vehicle is parked in intense sunlight.
A WARNING
-To reduce the risk of personal injury nev­
er touch the radiator fan .
- The auxiliary electric fan is temperature
controlled and can switch on suddenly
even when the engine is not running.
- The auxiliary radiator fan switches on au­
tomatically when the engine coolant
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. 139 Engin e compart ment: cover on th e br ake fluid
re se rvoir
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS c::> .&. in Working in the engine compart­
ment on page 180.
~ Read the brake fluid level from the brake
fluid reservoir
c::> page 182, fig. 134 . The
brake fluid level must be between the "MIN"
and "MAX" markings.
The brake fluid reservoir is located behind the
rear partition of the engine compartment on
the left side
c::> page 182.
The fluid level may drop slightly after some
time due to the automatic adjustment of the brake pads. This is not cause for alarm.
i,,.