2008 AUDI TT ROADSTER radiator cap

-Contact your authorized Audi dealer for assistance if
necessary.
If the engine coolant level is correct, then the radiator fan may be
the cause of the malfunction.
If the generator warning/indicator light should also illuminate
=> page 19 , then the fan belt may be damaged.
& WARNING
• If your vehicle 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 warning lights
=> page 75, "Emer­
gency flasher A".
• Never open the hood if you see or hear steam or coolant
escaping from the engine compartment -you risk being scalded.
Wait until you can no longer see or hear steam or coolant
escaping.
• The engine compartment of any vehicle is a dangerous area.
Before you perform any work in the engine compartment, turn of
the engine and allow it to cool. Follow the warning stickers
=> page 212, "Engine compartment".
0 Note
Do not continue driving if the _F_ symbol illuminates. There is a
malfunction in the engine cooling system -you could damage your
engine. •
Controls and equip ­
ment
Driver information system
Engine oil pressure malfunction 'l=;:f.
The red engine oil pressure warning symbol requires
immediate service or repair. Driving with a low-oil-pres­
sure indication is likely to result in serious damage to the
engine.
If the ~ symbol appears in the display and flashes, the oil
pressure is too low. In addition to the symbol, the following
message also appears in the display:
SWITCH OFF ENGINE AND CHECK OIL LEVEL
Immediate actions
- Pull off the road and stop the vehicle.
- Shut the engine down.
- Check the engine oil level with the dipstick=> page 224.
Dipstick reading checks too low
- Top off oil to the proper level
=> page 225.
- Make sure that the oil pressure warning symbol ~
appears no longer in the display before you start driving
again.
Dipstick reading checks OK
- If the ~ symbol starts flashing again even though the
engine oil level checks OK on the dipstick ,
do not start
driving again and do not let the engine run at idle .
Instead, contact your authorized Audi dealer for assis­
tance.
I • •

-~_C_ h_e _c _ k_ i_n ...:::g::;...._ a_n_ d_ f_ i_ll _in -'g:::;.._ ___________________________________________ _
Closing the engine hood
- Pull the hood down until the pressure from the struts is
reduced.
- Let the hood
drop down and latch in place. Do not try to
push it shut;
it may fail to engage~& .
& WARNING
A hood that is not completely latched could fly up and block your
view while driving.
• When you close the engine hood, check it to make sure the
safety catch has properly engaged. The hood should be flush with
the surrounding vehicle body parts.
• If you notice while driving that the hood is not secured prop­
erly, stop at once and close it. •
Working in the engine compartment
Be especially careful whenever you work in the engine
compartment!
Whenever you must perform any work in the engine compartment,
for example checking and filling the different fluids, there is a risk of injury, burns and accidents. To prevent personal injury always
observe the following WARNINGS. The engine compartment of any
vehicle is a hazardous area!
=> &
& WARNING
To help avoid injury, before you check anything under the hood :
• Switch off the engine.
• Remove the ignition key.
• Apply the parking brake.
& WARNING (continued)
• Move selector lever of automatic transmission to "P" {Park);
put manual transmission 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 compart­
ment. Wait until no steam or coolant can be seen or heard before
carefully opening the hood .
• Keep children away from the engine compartment.
• Never spill fluids on hot engine components. They can cause a
fire.
• Never touch the radiator fan. The auxiliary electric fan is
temperature controlled and can switch on suddenly.
• Never open the coolant reservoir cap when the engine is still
warm. The coolant system is pressurized and hot coolant 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.
• If work on the fuel system or the electrical system is necessary:
- Always disconnect the battery .
- Never smoke or work near heaters or open flames. Fluids in
the engine compartment could start a fire.
- Keep an approved fire extinguisher immediately available.
• To avoid electrical shock and personal injury 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: .,_

___ C_h_ e_ c_k _in --== g'-- a_n _d_ f_il _li _n ..:::g:::..- ___________________________________________ _
function and performance of your cooling system and could result
in damage not covered by your New Vehicle Limi ted Warranty .•
Checking the engine coolant level
The engine coolant level can be checked with a quick
g lance .
Fig. 154 Engin e
co mpartment : coo lan t
e xpansio n tank
Before you check anything in the engine compartment,
always read and heed all WARNINGS =>
& in "Working in
the engi ne compa rtment" on
page 2 20.
- Switch t he ignition off.
- Rea d the coo lan t leve l at th e co ola nt e xpansion tank
=> fig . 154. Wit h a c old engine , it must be a b ove the
"min" mark . With a hot engine, it can be a little a bove t he
indicated range .
The location of the coo lant expansion tank can be seen in the
engine compartment i llustration.
To obtain an accurate reading, the engine must be switched off .
The expans io n tank in your vehicle is equipped with an electric
coo lant level sensor . When the coolant leve
l is too low , the warning light in the Auto­
Check System ~
page 32will blink un til you add coolant 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 level
from time to time .
Coolant los s
Coolant loss may indicate a leak in the cooling system . In the event
of coo lant loss, the cooling system should be inspec ted i mmedi ­
a tely by your authorized Audi dealer . It is no t enough mere ly to add
coolant.
In a
sealed system, losses can occur only if the boi ling point of the
coolant is exceeded as a result of overheating.
0 Note
Do not add any type of radiator leak sea lant to your vehicle's engine
coo lant. A dding ra diator repair fluid may adversely affec t the func ­
tion and performance of your cooling system and could result in
damage not cove red by your New Veh icle Limi ted War ranty. •
Adding coolant
Be very careful when adding en gine coolant.
Before you c heck anything in the engine compartment,
always read and heed all WARNINGS =>
& in "Working in
the eng ine compa rtment" on
page 220 .
-Turn off the engine.
- Let the engine coo l dow n.
- Place a t hick rag
over th e coola nt expansio n tank
=> fig . 154 and carefully twist the cap cou nter -c lockwise
=> & .
- Add coolant .

___________________________________________ C_ h_e _c_ k_ i_n _g _ a_n _d_ f_il _li _n _g __ ffllll
•
- Twist the cap on again tightly.
Replacement engine coolant must conform to exact specifications
=>
page 227, "Coolant ". If in an emergency coolant additive G12 + is
not avai lab le, do
not use a d ifferen t addit ive. Use p lain water
instead until you can get the correct additive and can restore the
correct ratio . This should be done as soon as possib le .
If you have lost a considerable amoun t of coolant, then you should
add cold antifreeze and cold water only when the engine is cold.
Always use
new engine coolan t when refilling .
Do not fi ll coolant above the "MAX" mark. Excess coo lant will be
forced out through the pressure relief va lve in the cap when t he
engine becomes hot.
& WARNING
• The cooling system is under pres sure a nd can g et very hot.
Reduce the ri sk of scald ing from ho t co olant b y following the se
s tep s.
- Turn off the engine and allow it to cool d own .
- Prote ct your fa ce , hand s and arm s from e scaping fluid and
st eam b y covering the cap with a l arge , thick rag .
- Turn the cap slo wly and very carefully in a count er-c lockw ise
dire ction while applying light , do wnward pres sure on th e top
o f the cap.
- To avoid b eing burned , do not spill antifre eze or coolant on
th e ex haus t syste m or hot e ngine parts . Under cert ain co nd i­
tion s, the eth yle ne gly col in en gine co ola nt can cat ch fire .
• Antifr ee ze is poison ous. Alw ay s s tore antifr ee ze in its origi nal
c ontainer and well out of the re ach of children.
• If you dr ain th e coola nt , it mu st be caught and safe ly stored in
a proper contain er cle arly m ark ed "p oison ".
0 Note
• Coolant po llutes the env ironment and could cause an engine
fire . Excess coo lant wil l be forced out through the pressure relief
valve in the cap when the engine becomes ho t.
• I f, in an emergency, only water can be added, the correct ratio
between water and antifreeze=>
page 227must be restored as soon
as possib le .
<£> For the sake of the environment
Drained coolant should not be reused . Always dispose of used
coolant while observi ng all environmental regulations. •
Radiator fan
The radiator fan switches on automatically by itself.
The electric radiator fan is controlled by thermoswitches that switch
on and off depending on coolant and engine compartment temper­
atures.
An auxiliary electric radiator fan * switches on and off depending on
coolant temperature and other vehic le operation conditions .
After you switch the eng ine o ff, the aux iliary fan can continue
running for up to 10 minutes -even with the ignition off. It can even
switch on again later by itself=>& , if
• the temperature of the engine coolant rises due to the heat
build -up from the engine in the engine compar tment, or
• the engine compartment heats up because the vehicle is parked
in intense sunlight.
& WARNING
• To reduc e the ri sk of per sonal in jur y nev er t ouch t he radiato r
f a n . .,_
Vehicle care
I t •

______________________________________________ A_ l_,_ p _h_ a_ b_e _t_i c_ a _ l _in _ d_e _ x __ lllll
Dimensions ... .. ...... . .... .. .. .... 290 Electronic differential lock (EDU
Dipstick Reading the dipstick properly
Direct Shift Gearbox 224
Emergency release . . . . . . . . . . . . . . . 120
Distance ........ .... ....... ...... ... 40
Driver information system . .... .... ... . 22
Digital speedometer ... .. .... ...... 24
Fuel filler cap ...... ..... .... .... .. 24
Menu button ..................... 28
Menu display ..................... 27
Open door or rear lid warning . ......
24
Outside temperature display .. .... .. 23
Parking brake warning ............. 30
red symbols .. ............. ....... 31
Setting ...... .... ... .... ..... .. .. 28
Sound system disp lay ............ .. 23
Text messages . .... .... .... .... ... 30
Driver seat See Seating position . ............. 130
Driving Run -flat tires . .... .... ....... .... . 258
Dr iving messages ... ..... .. ... .... ... 30
Driving safely . . . . . . . . . . . . . . . . . . . . . . . 128
Driving time ... .... ... ..... .... .... .. 39
Duplicate key .... .... ...... ....... ... 47
Dust filter . ....... .... .... ........ ... 99
E
Electro -mechanical power assist ... 21, 190 How the system works
............ 186
Warning/indicator lights ............ 20
Electronic immobilizer ...... ... .. .. 14, 49
Electronic power cont ro l
EPC warning/indicator light ..... .... 17
Electronic Stability Program .......... 184
Electronic stabilization program (ESP! Warning/indicator lights ........ .... 18
Emergency flasher Warning/ind icator lights .. .... ...... 19
Emergency flashers .................. 75
Emergency locking . ... .... .... ... .. .. 54
Emergency operation Folding top ....................... 64
Rear lid .. .... ....... .... .... .... . 56
Emergency release for selector lever ... 120
Emergency starting ........ ... .... ... 278
Emergency towing .. ............. .. . 281
Engine Cecking and filling locations ... ... . 222
Checking and filling locations ...... 221
Coolant ... .. .... .... ..... .. ... .. 227
Hood . ..... .. ... ... .. .... ..... .. 219
Starting ..................... 106, 107
Starting with jumper cables ........ 278
Stopping .... .... ...... ...... ... . 107
Engine compartment .... ...... ...... 221
Safety instructions ................ 220
Working in the engine compartment 220
Engine coolant sys tem ..... .... ...... 227
Adding coolant .... .... ..... ... ... 228
Checking the engine coolant leve l .. . 228 Radiator fan
... .. .. .. .... .... .... 229
Temperature gauge ................ 13
Engine cooling system Malfunction ... .. .... .... .... ..... 32
Engine data .. ............... .... ... 291
Engine hood Closing .. ... ........ .... ... ..... 220
How to release the hood ... ... ... .. 219
Engine oil . ...... .... .... ... .... .... 222
Adding .... ....... .... ... .... .... 225
Additives .. .... .... ... .... .... ... 225
Changing . .... .... .... ..... ..... . 226
Checking the engine oi l leve l ... .... 224
Indications and conditions requiring extra checking .... .... .... .... .... ... 224
Oil consumption . ...... ..... .. .... 224
Oil grades . ....... .... .... ....... 222
Pressure malfunction .............. 33
Recommended oil check intervals ... 224
Specification and viscosity ......... 222
Engine oi l leve l .. .... .... ... .... .... . 35
Engine oil sensor defective .... ...... .. 35
Environment Break-in period ..... .. ... .... .... . 192
Catalytic converter .......... ... .. . 193
Disposing of your vehic le battery .. . 231
Driving at high speeds . ...... .... . 194
Dr iving to minim ize pollution and noise .
194
Fuel .. .... .... .... ... .... .... ... 216
Fuel economy ......... ........ ... 194
Leakage from your vehicle . .... .... 220
Letting the vehicle stand and warm up ..
195
Controls and equip­ ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Technical data

__ _!:_A~l'.!:p~ h~ a~ b~e~ t~ic ~a..'.... l ~in~d~e ~x~ --------------------------------------------
Proper disposal of drained brake fluid ...
230
Proper disposal of drained engine
coolant . ............ .... ...... . 228
Proper disposa l of drained engine oil
225,226
Recycling used engine oil ..... .... 225
Un leaded fuel .... ............... 214
What should I do with an old battery?
231
EPC
See Electronic power control . . . . . . . . 17
ESP
See Electronic Stability Program .... 184
Event Da ta Recorder (EDR) . . . . . . . . . . . 184
Expansion tank 228
F
Fan 100
Radiator . . . . . . . . . . . . . . . . . . . . . . . . 229
Flat tire Changing ....................... 267
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . 134
Fog lights, front ..................... 73
Folding master key with remote contro l . 47
Fo lding top .. ..... .. .... .... ........ 60
Automatic folding top . . . . . . . . . . . . . 62
Care and cleaning ...... ........ .. 203
Emergency operation . . . . . . . . . . . . . . 64
General . .... ... .. .... .... ...... .. 60
manual folding top ........... ..... 61
Warning/indictor lights .. ........ .. 18
Wind deflector . . . . . . . . . . . . . . . . . . . . 64 Foot pedals
. . . . . . . . . . . . . . . . . . . . . . . . 134
For the sake of the env ironment
Gasoline fumes and the environment 2 16
Letting your engine warm up . ..... 107
Reducing engine noise by early
upshifting .................. .... 12
Refueling ... .. .... .... .... ...... 216
Saving fuel by early upshifting ...... 12
Front airbags Description ..... ..... ...... ...... 150
How they work . . . . . . . . . . . . . . . . . . . 155
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Adjusting ......... .... .... ...... 131
Adjusting the manual seats .. .... ... 89
Child restraints in the front seat .... 147
Fronta l col lisions and the laws of physics ...
138
Fuel Additives .. ....... .... .......... 214
Blended gasoline ................. 214
Consumption .. ............. ...... 39
Fi ller neck . .... ........ ... ....... 215
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . 14
Gasoline ........... ... .... .... .. 214
Gasoline additives .... .... ... .. ... 215
Octane rating ... .. .... .... .... ... 214
Recommendation . . . . . . . . . . . . . . . . 214
Refuelling ..... ........ .... ... ... 216
Reserve .. .... ....... ...... .... ... 14
Tank capacity . .... ... .... ..... ... 291
Unlocking the fuel filler flap by hand 218
Fuel fi ller cap ......... .... .... ... .... 24
Fuel supply too low ........ ....... ... 35 Fuse
arrangement .... ... .. .. . .... .. . 274
G
Garage door opener ... .......... .... 121
Gas discharge lamps ...... ... .... ... 277
Gauges Engine coolant temperature ........ 13
Fuel gauge .... .... ....... .... .... 14
Tachometer ........... ...... .... . 12
Gearshift lever
6 -speed manual transmission ... ... 113
Generator Warning/indicator lights ............ 19
G lossary of tire and loading terminology ...
239
G love compartment ...... .... .... .... 96
Gross Vehicle Weight Rating (GVWR) ... 289
H
Head restraints ........ ... ........ .. 132
Adjusting .. ........... .... .... .. 132
Headlight Defective . . . . . . . . . . . . . . . . . . . . . . . . . 36
Headlight range control
defective .......... .... ....... .... 35
Headlights .... ....... .... ... .... .... 69
adaptive light ...... ........ .... ... 72
Front fog lights ... .... .... .... .... 73
Switching off ... .... ...... .... .... 69
Switching on ...... .... ....... .... 69
Washer system . . . . . . . . . . . . . . . . . . . 79