2011 AUDI TT ROADSTER heating

wooded 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
T he engine coolan t performs two functions: it
keeps the engine from overheating and it pro ­
tects the engine from freezing in the winter .
The cooling system is sealed and generally re­
quires little attention .
T he cooling system has been filled at the fac­
tory with a permanent coolant which does not
need to be changed . The coolan t consis ts of a
mixture of water and the manufacturer 's gly ­
col-basedcoolant additive G12 ++ antifreeze
with anticorrosion additives (50% for USA
models; 60% for Canad ian 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 th e boiling point of the
c oolant.
Do not reduce the concentration of the coo l­
ant in the summer by adding plain water .
The
proportion of coolant additive must be at
least 50% but not more than 60%
to main­
tain antifree ze protection and cooling efficien­
cy . If the coolant frost protection is too low,
the coolant could freeze and damage the veh i­
cle heating and eng ine cooling system .
For year-round driving, an tifree ze is added at
the factory for temperatures down to:
- -31 ° F ( - 3 5 °C) USA
- -40 °F ( -40 °C) Canada.
You can mix the G12 ++ coolant addit ive with
other additives (G12+ or G12) . Always check
with your authorized Audi dealer.
& WARNING
Before you check anything in the engine
compartment, always read and heed all
-
Checkin g and fillin g 185
WARNINGS c:::> .& in Working in the engine
compartment on page 178.
(D Note
- Before winter sets in, have the coolant
checked to see if the coolant additive in
your vehicle is sufficient to meet the cli­
mate conditions. This is especially impor­
tant if you live in a region where the win­
ter is extreme ly cold . If necessary, in­
crease the proportion of coo lant add itive
to 60% .
- Whe n adding coolant additive to your
cooling system, remember :
- We recommend using only coo lant ad­
ditive G12++ (check the labe l) for your
vehicle . This coolant additive is avai la­
ble at authorized Audi dealers. Other
types of ant ifreeze can significantly re­
duce corrosion protection . The result­
ing corrosion can cause a loss of cool ­
ant and ser ious eng ine damage.
- Do not add any type of rad iator leak seal ­
ant to yo ur vehicle's engine coolant .
Add ing radiator repair fluid may adverse­
ly affect the function and performance of
your cooling system and could resu lt in
damage not covered by your New Vehicle
Limited Warranty .
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance.
Fig. 141 E ng ine compart men t: coo lant ex pansion t ank Ill>

186 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
comportment on page 178.
• Switch the ignition off .
• Read the coo lant level at the coolant expan­
s ion tank ¢
fig. 141 . With a co ld engine, it
must be above the "min" mark. W ith a hot
engine, it can be a little above the indicated
range.
The location of the coolant expansion tank
can be seen in the engine compartment illus­
tration .
To obtain an accurate reading , the engine
must be switched
off.
The expansion tank in you r vehicle is equipped
with an e lectric coolant level sensor .
When the coolant level is too low, the warning light in the Auto- Check System ¢
page 31 will
blink until you add coo lant and the level has
been restored to no rma l. Even though there is
an electric coolant level sen sor, we still 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 coolant loss, the cool­
ing system should be inspected immediately
by your authorized A udi 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 overheating.
@ Note
Do not add any type of ra diator leak seal­
ant to yo ur 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 result 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 comport­
ment on page 178 .
•Turnoff the engine.
• Let the eng ine cool down.
• Place a thick rag ove r the coolant expansion
tank
¢ page 185, fig . 141 and carefully
tw ist the cap counter-clockwise ¢&_ .
• Add coolant.
• Twis t the cap o n aga in
tightly.
Replacement engine coolant must conform to
exact spec ificat ions
¢ page 185, Coolant.
E ven in a n emerge ncy, if coo lant addi -
t ive G1 2++, G12+ or G12 is not ava ilable , do
not use a d ifferen 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 amo unt o f
coolant , then you sho uld add cold ant ifreeze
and co ld wate r on ly w hen the engine is cold.
Always use
new engine coo la nt whe n refilling .
Do not fill coola nt above the "MAX" mark. Ex­
cess coo la 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 you r face, hands and a rms from
esca ping fluid and steam by covering
the cap w ith a large, t hick rag.
- T urn the cap slowly a nd ve ry carefully
in a counter-clo ckwise direction while
applying light, downward pres sure on
the top o f the cap.

228 Fuses and bulbs
Fuse Location, Instrument Panel left
0
Fig. 172 Fuse ca rrier be hind the inst rum ent pan el end
fa ce, cover rem oved
Some of the equipment i tems lis ted are op­
tional or only available on certain model con ­
figurations.
Note that the following table is accurate at
the time of going to press and is subject to
change. In the event of discrepancies, the la­
bel on the inside of the cover always takes
precedence.
The power seats are protected by circuit
breakers,
which automatically reset after a
few seconds after the overload has been rem­
edied .
No. Equipment
1
I 2
Engine relay, fuel tank control
unit , Airbag Off light, light
switch (switch illumination), di-
agnostic connector
ABS, ASR, ESP, brake light switch
3 AFS headlight (left)
Amps
10
5
s
No.
4
5
6
7
Equipment
Oil level sensor (extended main-
tenance interval)
(WIV), tire
pressure monitoring system,
switch for Electronic Stability Program (ESP), AFS headlights
(control unit), A/C system (pres-
sure sensor), backup light
switch
Automatic headlight range con­
trol, AFS headlight (right)/
manual headlight range con­
trol, halogen headlights
Control unit for CAN data trans­
fer (gateway), electromechani­
cal steering, automatic trans­ mission shift gate
Acoustic Park Assist, automatic
dipping interior rear
view mir-
ror, garage door opener, heata­
ble windshield washer nozzles,
washer pump, wind deflector
relay (Roadster)
--r-
Amps
5
5/10
5
5
8 Haldex clutch 5
9 Control unit Audi magnetic ride 5
10 Airbag control unit 5
Mass airflow sensor, crankcase
11 5/10
heating
Door control unit (central lock-
12 10
ing driver/passenger)
--
13 Diagnostic connector 10
Rain sensor, automatic trans-
14 5
mission shift gate
15 Roof light (interior lighting) 5
16 A/C system (control unit) 10
17 Tire pressure monitoring sys-
5
tern (control unit)
l
I
18 Notused -
19 Not used
20 Not used
21 Fuel injectors (gasoline engine)
Wind deflector (Roadster)
Horn
24 Transmission (control unit) 10
30
20
15
..,.

232 Emergency situations
@ Tips
The discharged battery must be properly
connected to the vehicle's electrical sys­
tem.
Use of jumper cables
Make sure to connect the jumper coble
clomps in exactly the order described below!
Fig. 174 Engine compart ment: Co nnectors for jumper
cables and charger
Fig. 175 Jump starting with the battery of another ve­
hicle: @discharged veh icle battery, ® booste r battery
The procedure described below for connecting
jumper cables is intended to provide a jump
start for your veh icle.
Preparatory measures
1. Do not jump start a froze n battery! Re­
place such a battery!
2 . Otherwise apply the hand brake and put
the selector lever into P position.
3. For both vehicles switch off all consumers
and the ign ition.
Connecting/disconnecting the jumper
cable .
4. Connect one end of the red jumper cable
on the
jump start bolt (D 9 fig. 175
(Bolts under red cover = "positive") of the
vehicle to be started @.
5. Connect the other end of the red jumper
cable to the positive terminal @of the
booster battery @.
6. Connect one end of the black jumper ca­
ble to the negat ive terminal @of the
booster battery @.
7. Connect the other end of the black jumper
cable to the negative terminal (bolt head)
@ in the external start ing point @ of
your vehicle.
8. Route the jumper cables so that they can­
not catch in any rotat ing parts in the en­
gine compartment.
Starting the engine
9. Start the engine of the vehicle providing
assistance and allow it to run at id le .
10. Now start the engine of the vehicle with
the discharged battery, wait for two to
three minutes until the engine "runs"
smoothly.
11. If the eng ine does not start: Stop try ing
after 10 seconds and then try again after
about 30 seconds.
12. In the vehicle that has received start as­
sistance, turn on the heater blower and
the rear window heating to elim inate any
vo ltage peaks when disconnecting . Driv­
ing lights must be switched off!
13 . Disconnect the cable while the engine is
running exactly in
reverse order to that
described inc:>
page 232, Connecting/dis­
connecting the jumper coble ..
When do­
ing so, make sure that the cable cannot
contact rotating eng ine parts.
14. Close the cover on the posi tive terminal.
The battery is vented to the outside to prevent
gases from entering the vehicle inter ior. Make
sure that the jumper clamps are well connect­
ed with their
metal parts in full contact with
the battery terminals.
A WARNING ~
To avoid serious personal injury and dam-
age to the vehicle, heed all warnings and

Infant seats . ............ .. .. .. ... 141
Safety instructions . . . . . . . . . . . . . . . . . 139
C igarette lig hter ........... .... .. .... 72
Cleaning Alcantara (synthet ic suede) . .. .. .. .. . 171
Eng ine compartment .......... ... .. 172
Exhaust tail pipes .............. .... 168
Fabr ics and fabric coverings .. .. .. .. . 169
Instr ument panel ......... .. .. .. .. . 169
Int erior .. .. ............. .. .. .. .. . 168
L eather . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Navigation display ........ .. .. .... . 168
P lastic and vinyl ............ .. .. ... 166
Plastic parts ............. .... .. .. . 169
Radio display . ........... .. .. .. ... 168
Safety belts . . . . . . . . . . . . . . . . . . . . . . 172
Trim str ips . . . . . . . . . . . . . . . . . . 165 , 166
Cleaning and protection ........... .. . 162
Climate controls ........... .. .. .. .... 75
A/C operation . . . . . . . . . . . . . . . . . . . . . . 78
Air distribution ........... .. .. .. .... 77
Air rec irculation mode ............... 78
Automatic mode . . . . . . . . . . . . . . . . . . . 78
Controls ... ............. .... .. .... 75
Defrost .... .. ........... .. .. .. .... 78
Economical use . . . . . . . . . . . . . . . . . . . . 78
Fan ...... ... ................ .... . 76
Heated seats . . . . . . . . . . . . . . . . . . . . . . 79
H eating .. .. ............. .... .. .... 75
Po llutant filter ........... .. .. .. .... 75
Rear window defogger ....... .. .. .. .. 79
Switching on and
off . . . . . . . . . . . . . . . . 76
Temperature . ............ .. .. ...... 76
Ventilation ... ........... .. .. .. .... 75
Clock ....... ................. .. .... 11
Clutch overheating ......... .. .. .. .. .. 92
Cold tire inflation pressure ..... .. .. .. . 198
Coming home ................ .... ... 54
Compass m irror ........... .... .. .... 64
Compliance .. ............. .... .. .. . 244
Consumer Information . . . . . . . . . . 105, 241
Contacting NHTSA .................. 105
Controls and displays ......... .. .. .. .. . 8
Convenience close/open feature
Power top .. ... .. .. ...... .. .. .. .. .. 48
Windows .. ................ ... ... . 44
Convertible child safety seats . ... .. .. . 142
Index 247
Convertible locking retractor
Activating ... .. .... . ............ .. 146
Deactivating ... .. .. . .. .......... .. 147
U sing to secure a child safety seat 1.44, 146
Convertible top .. .. ................. . 46
Automat ic convertible top ......... .. . 48
Care and cleaning .... .......... .. .. 164
Emergency operation ........... .. .. . 49
General information ............. .. . 46
manua l convertible top ............. . 47
Warning/indictor lights ............ .. 14
Wind deflecto r ... .. . .. .. ...... .. .. . 49
Cooling system . . . . . . . . . . . . . . . . . . . . . 185
Expansion tank . . . . . . . . . . . . . . . . . . . . 185
Cornering light . . . . . . . . . . . . . . . . . . . . . . 54
Cruise contro l . . . . . . . . . . . . . . . . . . . . . . . 84
Changin g speed .. .. ... ....... .... .. 85
Presetting your speed . .. .... ... .. .. . 85
Switching
off .. .. ................. . 8S
Switching on . .. .. .... ........... .. . 84
Warning/indicator lights ........ .. .. . 16
Cup holder .. .. .. .. .. . .. .. ...... .. .. . 71
Current fuel mileage
20
D
Damping
refer to Audi magnetic ride ........... 86
Data ....... .. .. .. ... ............ .. 239
Data recorder . . . . . . . . . . . . . . . . . . . . . . 148
Date display . . . . . . . . . . . . . . . . . . . . . . . . 11
Daytime runn ing lights ... .. ...... .. .. . 53
Declarat ion of compliance
Cell phone package . . . . . . . . . . . . . . . . 244
E le ctronic immob ilizer .............. 244
Homelink ® un iversal remote control .. 244
Remote control key .. .. .. ...... .. .. 244
def What does this mean when it appears in
the tr ip odometer display? ...... .. .. . 12
Defective light bulb warning .......... . 33
Defrosting the windows ......... .... .. 78
Determ ining correct load limit ...... .. 202
Digital clock . . . . . . . . . . . . . . . . . . . . . . . . 11
Digital compass . . . . . . . . . . . . . . . . . . . . . 64
Dimens ions ... .... .. . .. .......... .. 238
•
•

250 Index
Washer system . . . . . . . . . . . . . . . . . . . . . 62
Xenon headlights . . . . . . . . . . . . . . . . . . . 53
H ead restraints . ........... .... .... . 101
Adjusting .. ............. .. .. .. .. . 101
Heated front seats (climate control) . . . . . . . . . .
79
rear window . . . . . . . . . . . . . . . . . . . . . . . 79
Heated outside mirrors ..... .... .... .. 59
Heated seats . . . . . . . . . . . . . . . . . . . . . . . .
79
Heated washer jets
W iper and washer system .. .. .. .. .. . . 60
Heating ... .. ................ ..... .. 75
H igh beam . . . . . . . . . . . . . . . . . . . . . . 53, 55
Warn ing/ indicator l ights . .. .... .. .. .. 15
High voltage warn ing label ...... .. .. . 237
Hill Descent Assist .......... ... .... ..
90
H omeLink ® universal remote control . . . . 94
Hood
Opening . .. ..... ........... ... .. . 178
Release lever .. .... ...... .. .. .. .. . 178
Horn .. ... .................. ..... .. .
8
H ow many airbags does my vehicle have? 121
How often should I check my tire pres-
sures? .. .. .. ................ ... ... 201
How safety belt pretensioners work ... . 113
H ydroplaning 204
I
Ignition key . . . . . . . . . . . . . . . . . . . . . . . . . 80
Ignition key safety lock ..... .. .. .... .. 81
I gnition lock . . . . . . . . . . . . . . . . . . . . . . . . 80
Ignition lock pos itions . . . . . . . . . . . . . . . . 80
Immobilizer ................ .. .... .. 12
Important things to do before driving . . . 98
Improperly worn safety belts . .. .. .. .. . 112
I ndicator light
Airbag system . . . . . . . . . . . . . . . 125, 126
Audi magnetic ride ......... ... .... .. 14
C lutch overheating . . . . . . . . . . . . . . . . . . 92
PASSENGER AIR BAG OFF .. .... .... . 126
I ndicator lights ............ .. .. .. .. .. 13
Red symbols in the center disp lay .... . . 29
Ye llow symbols in the center disp lay ... 29
Infant seats . ... .......... .. .. .. .. . 141
Inside rearview mirror ...... .. .. .... .. 58 Installing child safety seats
Safety be lts . . . . . . . . . . . . . . . . . . . . . . 144
Instrument cluster and controls ... .... . 10
Instrument panel illumination .... .... . 57
Instruments and controls General illustration . . . . . . . . . . . . . . . . . . 8
Interior lights . . . . . . . . . . . . . . . . . . . . . . . 56
Luggage compartment ............. . 57
J
Jump-starting . .. .. ..... ....... ... .. 231
Jumper cables ... .. ............. .... 232
K
Key ........ .... .. .................. 35
Battery replacement .............. .. 36
Convenience opening and closing of pow-
er top .... ...... ............. .... . 48
Convenience opening and closing of win-
dows ........ ... .. ................ 44
Emergency key ... ....... ...... .. .. . 35
Key replacement .............. ..... 35
Master key ....................... . 35
Valet key .. .. .. .. ... .......... .... . 35
Keyless entry remote control .. .. ... ... . 35
Kick -down . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Knee air bags .. .. .. ... .......... .... 130
Description .. .. .. ............. .. .. 130
How they work ... ................ . 131
Important safety instructions ........ 132
L
Lap timer ... .. .. .. ............. .. .. . 25
Launch Control Program ... ...... .. .. . 91
Leather . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Cleaning ......................... 171
Leaving home ..... ............. .... . 54
Lifting jack . .... .. .. ... ... ..... .. .. 223
Lifting vehicle ..... ................ . 236
Light/rain sensor defective ........... . 34
Lights . .... .... .. ............. .... . 53
Coming/Leaving home . . . . . . . . . . . . . . . 54
Emergency flasher . . . . . . . . . . . . . . . . . . 56
Exterior lighting . . . . . . . . . . . . . . . . . . . . 54
Front fog lights . . . . . . . . . . . . . . . . . . . . 55