engine overheat AUDI TT 2013 Owner´s Manual

the exhaust system and this could cause
the catalytic converter to overheat.
- Do not turn off the ignition while the ve ­
hicle is moving .
- Do not con tinue to operate yo ur vehicle
under these conditions, as otherwise fuel
can reach the cata lytic converter . This
could result in overheating of the con­
verter, requ iring its replacement.
- To assure efficient operation of the Emis­
sion Control System:
- Have your veh icle ma inta ined properly
and in acco rdance with the service rec­
ommendations in your Wa rranty
&
Ma intenan ce booklet.
- Lac k of proper maintenance as well as
improper use of the vehicle will impa ir
t he funct ion of the emission control
system and cou ld lead to damage.
@ For the sake of the environment
Even when the Emission Contro l System is
operating p roperly, the exhaus t gas can
have a s ulfu r- like exhaust gas smell under
some operating states. This depends on
the s ulfur content o f the fue l being used.
Using a different brand of fuel may help,
or filling the tank w ith lead-free super
grade gasoline .
Operate your vehicle
economically and
minimize pollution
General
Your personal style of driving will determine
the economy of your vehicle, as well as ex­
haust and noise levels .
Fuel economy, environmental impact, and
wear on your engine, brakes and t ires largely
depend on three factors :
- your persona l driving style
- operating conditions
- technical lim itations
I f you anticipate w hat you need to do nex t and
d rive economically, you can eas ily cut your
Dri vin g and en vironm ent 161
fuel consumption by 10 -15 percent. Th is sec ­
tion w ill give yo u some tips on how you can
help the env ironment and your pocketbook .
(D Tips
The cons umption estimates as published
by ENVIRONME NTAL PROTEC TION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the road, which will vary depending upon vehi­
cle load and speed, road and weather con­
dit ions, trip length, etc.
Drive smoothly and keep a lookout
ahead
Vehicles use the most fuel when they are ac­
celerating.
Avoid unnecessary accelerat ing and braking .
Vehicles use the most fuel when they are ac­
ce lerat ing . If you anticipate what is going to
happe n next, you will need to brake less and,
th us, accele rate less. Let the vehicle coast
whenever possible -for examp le when you see
that the next t raff ic light is red.
Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage.
"' Try and keep well below your car's maxi -
mum speed.
Acce lerat ing gently reduces fue l consump­
tion, eng ine wear, and does not disturb the
environment.
Fuel consumpt ion, exhaust emiss ions and en­
gine noise increase disproportionately at high
speeds. If you drive at approximately three
quarte rs of top speed, fuel consumption w il l
be reduced by one half. Never drive faster
t h an the posted speed limit and weathe r con­
ditions perm it.
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@ 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

188 Checking and filling
Before you check anything in the engine com­
partment,
alwa ys r ea d and heed all WARN­
INGS ¢ A in Working in the engine compart­
ment on page 180.
• Park your vehicle on a level surface.
• Switch the ignition off.
• Read the coolant level at the coolant expan­
s ion tank ¢
page 182, fig . 134. With a cold
engine, it must be above the "min" mark .
With a hot engine, it ca n be a little above
the indicated range .
The location of the coolant expans ion tank
can be seen in the engine compartment illus­
tration
¢ page 182.
To obtain an accurate read ing, the engine
must be switched off.
The expansion tank in yo ur vehicle is equipped
with an e lectric coolant level sensor .
When the coo lant level is too low, the warning
light in the A uto- Check System ¢
page 16 will
illuminate until yo u add coo lant and the level
has been restored to normal. Even though
there is an electric coo lant level sensor, we
still recommend 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 coolant loss, the cool­
ing system should be inspected immediately
by your author ized 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 result of overheat ing.
(D Note
Do not add any type of radiator lea k seal­
ant to your vehicle's eng ine coolant. Add­
ing radiator repair f luid may adversely af­
fect the function and performance of your
cooling system and could res ult in damage
not covered by your New Vehicle Limited
Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anyth ing in the engine com­
partment,
always read and heed all WARN­
INGS ¢ A in Working in the engine compart­
ment on page 180 .
• Turn off the engine.
• Let the engine cool down.
• Place a thick rag over t he coo lant expansion
tank
¢ page 187, fig . 138 a nd carefully
tw ist the cap counter-clockwise ¢&_ .
• Add coo la nt.
• Twis t the cap on aga in
t ightly.
Replacement engine coolant must conform to
exact spec ificat ions ¢
page 18 7, Coolant.
Even in a n emerge ncy, if coolant add i-
t ive G1 2++, G12+ or G12 is not ava ilable , do
not use a d iffe ren t addit ive. Use plain water
instead unti l you can get the cor rect 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 ant ifreeze
and co ld wate r on ly w hen the engine is cold.
Alw ays use
new engine coo la nt whe n refilling .
Do not fill coola nt above the "MAX" mark. Ex­
cess coola nt wi ll be fo rced o ut through the
pressure relief valve in t he cap w hen the en­
gine becomes hot.
,&. WARNING ~ -
- T he cooling system is under pressure and
can get very hot. Reduce the risk of
scalding from hot coolant by followi ng
these steps.
- T urn off the engine and allow it to coo l
down.
- Protect yo ur face, hands and arms from
escaping fluid and steam by covering
the cap w ith a large, t hick rag.
- T urn the cap s lowly a nd ve ry carefully
in a counter-clo ckwise direction while
applying light, downward pres sure on
the top of the cap.

Infant seats . ..... .... ... .. .. .. ... 135
L A T CH syst em . . . . . . . . . . . . . . . . . . . . . 146
Safety instructions ..... ... .. .. .. .. . 133
Ch ild seats
L owe r anchorages ........ .. .. .. .. . 14 4
C igarette lighter . . . . . . . . . . . . . . . . . . . . . 63
C lea ning
A lcantara (synthet ic suede) . .. .. .. .. . 173
Engine compartment ...... .. .. .. .. . 174
Exhaust tail p ipes ......... .. .. .. .. . 170
Fabrics and fabr ic coverings .. .. ... .. 171
Instrumen t panel ...... ...... .... .. 171
I nterior . . . . . . . . . . . . . . . . . . . . . . . . . . 170
L eathe r . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3
M atte fin is h pai nt ........ .. .. .. .. . 166
N avigation display ..... ... .. .. .. .. . 170
P lastic and v inyl .. ..... ... .. .. .. ... 168
P lastic pa rts . ... .. .... ... .. .. .. ... 171
Radio disp lay ............ .... .. ... 170
Safety belts . . . . . . . . . . . . . . . . . . . . . . 17 4
Trim str ips . .. ... .. ... ... .. .. .. ... 168
C leaning and protection .. ... .. .. .. .. . 164
Climate controls . . . . . . . . . . . . . . . . . . . . . 66
A/C operation . . . . . . . . . . . . . . . . . . . . . . 69
A ir d ist ribution ........... .... .. .. .. 6 8
A ir rec ircula tion mode .. ... .. .. .. .. .. 69
Automatic mode . . . . . . . . . . . . . . . . . . . 69
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Defrost .. .. .. ........... .. .. .. .... 69
Economical use . . . . . . . . . . . . . . . . . . . . 69
Fa n ..... .. ................. .. .... 67
H eated seats ............... ... ... . 70
H eating . ... ... .. .. ...... .. .. .. .. .. 66
P oll utant fi lter ........... .. .. .. .... 66
R ear w indow defogger . . . . . . . . . . . . . . . 70
Sw itch ing on and off ...... .. .. .. .. .. 6 7
Temperatu re . .... ..... ... .. .. .. .... 67
Venti lation ... .... .... ... .. .. .. .... 66
C lock . .. .. .. .......... ... .... .. .. .. 11
Clutch overheating . . . . . . . . . . . . . . . . . . . 85
C lutch pedal
I ndicator light . . . . . . . . . . . . . . . . . . . . . 17
Coat hooks . . . . . . . . . . . . . . . . . . . . . . . . . 65
Cold tire inflat ion pressure ... .. .. .. .. . 200
Com ing home ............. .... .. .... 43
Compass m irror ........ .... ... ... ... 52
Comp liance .. ... .. ..... ... .. .. .. ... 246
Inde x 249
Consumer Information . . . . . . . . . . . 98, 2 43
Contacting NHTSA ................. .. 98
Controls and displays . . . . . . . . . . . . . . . . . . 8
Convenie nce close/open feature
Windows ... .. .... . ... ...... ... .. . 40
Convertible child saf ety seats
Conve rtib le loc king retractor 136
Activating . . . . . . . . . . . . . . . . . . . . . . . . 142
Deact ivating . .. .. .... ............. 143
U sing to secure a child safety seat 1 .40, 142
Cooling system . . . . . . . . . . . . . . . . . . . . . 187
Expansion tank . . . . . . . . . . . . . . . . . . . . 187
C o rnering ligh t .. ...... ............. . 43
C ruise contro l . . . . . . . . . . . . . . . . . . . . . . . 76
Changi ng speed .................. .. 77
Pres ett ing your speed ............. .. 77
Switch ing off .. .. .... ........... .. . 77
Swi tching on . . . . . . . . . . . . . . . . . . . . . . . 76
Warning/ind ic a tor lights .......... .. . 21
Cup holder ........ .. ................ 62
C ur rent fuel mileage 23
D
Damping
refer to Audi magnetic ride ... ... .. .. . 78
Data .......... ... .. ............... 240
Data recorder . .. .. ... ............ .. 150
Date d isp lay . . . . . . . . . . . . . . . . . . . . . . . . 11
Daytime runn ing lights .............. .. 42
Declaration of compliance Ce ll phone package . . . . . . . . . . . . . . . . 246
E lectronic immob ilizer .............. 246
Homelink ® uni ve rsal remote control .. 246
Remote contro l key . . . . . . . . . . . . . . . . 246
def What does this mean when it appears in
th e tr ip odometer display? ...... .. .. . 12
De fec tive light bu lb wa rning ... ... .. .. . 20
Defrost ing the windows ............... 69
Dete rm ining correct load limit . ... .. .. 205
Digi tal clo ck . . . . . . . . . . . . . . . . . . . . . . . . 11
Digital compass . . . . . . . . . . . . . . . . . . . . . 52
Dime nsions ... .... .. . .. .. ..... ... .. 239
D imm ing the rearv iew m irror ........ .. 47
Dipst ick
Reading the dipst ic k properly ...... .. 185
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