engine coolant AUDI TT ROADSTER 2008 Owners Manual

Inst rum ent s a nd warning /indi cato r li ghts
Instruments and warning/indicator lights
Instruments
Instrument cluster and controls
The instrument cluster is your central source of informa­
tion .
6
Fig . 2 Ove rv iew of the ins trum ent cluster
0
0
0
©
©
©
G)
©
Tachometer with time and date display ......•.....
Warning/indicator lights .. ... ..... ... ........ .. .
Coolant temperature gaug e .... ... ...... ...... .. .
Fuel gauge .. .... ... .. ...... .... ... ..... ... ... .
Speedome ter with odometer ..... .... ... .. .. ... .
Set/Chec k button ..... ... ..... ..... ... ........ .
Driver information display
Reset but ton for
~
"' N 9
i
12, 13
16
13
14
14
15
22
- trip odometer
- Service indicator
[ i ] Tip s
14
25
The illumination for the instrument cluster lights up whenever you
switch on the ign ition with the
ve hicle hea dlight s off. As the
daylight fades, the instrument cluster illumination likewise dims
automatically and wil l go out completely when the outside light is
very low. This feature is meant to remind you to switch on th e head ­
lights when outside light conditions become poor. •
Tachometer (engine rev counter)
The tachometer indicates the engine RPM (revolutions per
minutes) .
The tachometer 0 ~ fig. 2 is the left of the two large c lock -type
displays.
The engine turns at a speed
1,000 times the single digit in the
display, e.g . if th e ne edle is pointing a t the
"2" the engine is turning
at 2,000 RPM .
If engine RPM drops below 1,500, you should downshif t to the next
lower gear . The red ar ea at the end of th e scale indica tes maximum
permissible engine RPM after the break- in period. Before reaching
th is area , shift into the next higher gear (manua l transmission),
move the selec tor lever to position "D (Drive)" (automatic) or ease
your foot off the accelerator pedal.
0 Note
T he tachometer need le should not move into the red range . If it
does, then on ly for a very short period of time . You could damage
your engine by driving a t high RPM. ...

<£> For the sake of the environment
Upshifting early saves fuel and reduces engine noise. •
Digital clock with date display
Your vehicle is equipped with a quartz controlled digital
clock.
To set the hour
Fig. 3 Instrument
c luste r with the digital
c lock
- Pull the knob (hour display flashes) and turn it to the left
or right.
To set the minutes
- Pull the knob as many times as necessa ry until the
m in ute display flashes.
- Turn the knob to the left or right.
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.
Con tro ls and eq uip­
ment
Instruments and warning /indicator lights
To hide or display the date
- Pull the knob as many times as necessary until the date
display flashes .
- Turn the knob to the left or right.
When the date display stops blinking, this means the time and date
have been successfully stored.
With the ignition off, pushing or pulling the Set/Check button
~ page 12, fig. 2 ©-depending on the instrument cluster configu ­
ration - can turn on the display field lighting for a few seconds .•
Engine coolant temperature gauge
The engine coolant gauge~ page 12, fig. 2 © only works when the
ignition is on. To preven t damage to your engine, please note the
following important points:
Engine cold
As long as the needle remains at the left end of the gauge, the
engine still has not reached its operating temperature . Avoid high
engine speeds, heavy engine loads and heavy throttle.
Normal temperature
When the engine has reached its operating temperature, the needle
will move into the middle of the gauge and remain there. If the
engine is working hard at high outside temperatures, the needle
may turn further to the right. This is no cause for concern as long as
the -~- warning light in the instrument cluster does not illuminate.
When the
_J _ warning light starts to flash, this can mean one of two
things: either the coolant
temperature is too high , or the coolant
level is too low~ page 32 . ~
Vehicle care I I irechnical data

Instruments and warning/indicator lights
& WARNING
• Always observe the warning in=;, page 212, " Engine compart ­
ment" before opening the engine hood and checking the engine
coolant level.
• Never open the engine hood if you see or hear steam , or if you
see engine coolant dripping from the engine compartment . You
c ould burn your self. Let the engine cool off first so that you cannot
hear or see any steam or engine coolant .
0 Note
• Mounting additiona l lights or accessories in front of the a ir inlets
reduces the co oling effect of the radiat or. At high outside tempera ­
tures or h igh engi ne load, the eng ine could overheat.
• The fron t spoile r has been designed t o properly dis trib ute the
coo ling air when the veh icle is mov ing . If the spo iler is damaged,
this could red uce the coo ling effect and the engine co uld then ove r­
heat. Ask your authorized Audi deale r for assistance. •
Fuel gauge
The fuel gauge wor ks only when the ignition is on .
When the needle reaches the red area, the warning light in the i nstrument cluster w ill illu m ina te =;,
page 35 . Thi s means yo u
have approx imate ly 1.9 gallons (7 litres) of fuel left in the tank.
Time
to refuel!
The tota l tank capacity of your vehicle is listed in=;, page 297. Be
awa re of the diffe rent ta nk capaci ties of front -wheel a nd q uat tro®
a ll- w hee l d ri ve models .
0 Note
Never run the tank comple tely dry! An irre gular suppl y of fuel can
cause engine m isf iring and fuel could enter into the exhaust system.
The catalytic converter could then overheat and be
damag ed. •
Speedometer with odometer
The speedometer shows y ou t he vehic le speed, and the
o dome ter sho ws you ho w ma ny m iles (kilo meters) yo u
have dri ven.
Fig . 4 Speedomete r
close -up : odomet er
displ ay
T he od ometer an d trip odo mete r are locate d insid e th e spe edom­
eter .
• USA model s - Miles
• Canada mode ls - Kilometers
Lower odometer
The lower odometer shows the total number of miles (kilometers)
d riven.
Upper odometer (trip odometer )
The upper o dometer shows the tota l number o f mi les ( kilom eters)
driven since you last reset the odometer bac k to ze ro . You can use
thi s odomete r w hen you want to keep track of how ma ny m iles ( kilo­
meters) you have driven for a single trip or errand. The last digit indi ­
cates 1/10 of a m ile (10 0 meters). You ca n set t he trip od o meter back
to zero by pressing the reset button
=;, fig . 4 . ..,,

Additional information about the electrically retractable rear spoiler
=:> page 187 . •
Turn signals ¢ Q
The indicator light blinks when you use either turn signal.
Whenever you use the left¢ or the right c::::> turn signal, the indicator
light blinks. When you use the emergency flasher, both indicator
lights flash .
If one of the turn signa l light bu lbs burn out, the turn signal will
blink twice as fast as normal.
Additiona l information on the turn signals :::::>
page 76. •
Cruise control
CRUISE (USA models )/ (')<> (Canada models)
The CRUISE warning/indicator light illuminates when the cruise
control is activated. •
Airbag system
~~ (USA models) / !_~· (Canada models)
This warning/indicator light monitors the airbag and the
tensioner systems .
The ti (USA models) !! 'tr (Canada models) warning light illuminates
for a few seconds each time you switch on the ignition .
If the m (USA mode ls)
/ J q· (Canada models) warning light does not
go out, or if it i lluminates whi le you are driving, or if it starts to blink,
then there is a malfunction somewhere in the system. If the light
does not illuminate when you switch on the ignition, this also
means there is a malfunction.
Controls and equip ­
ment
Instruments and warning /indi cator lights
& WARNING
If you have a malfunction in the airbag system, contact your autho­
rized Audi dealer immediately. Otherwise the airbag or the belt
tensioner may not work properly in an accident. •
Generator 0
This warning/indicator light detects a malfunction in the
generator or in the vehicle's electrical system.
The D warning/indicator light illuminates when you switch on the
ignition and must go out after the engine has started.
If the D warning/indicator light illuminates while you are driving,
you should contact your authorized Audi deale r. Since the vehicle
battery is discharging, you should switch off any unnecessary elec ­
trical consumers (for example, the air conditioner).
0 Note
If the -~- warning/indicator light (malfunction in the engine cooling
system) in the instrument cluster shou ld illuminate :::::>
page 32, stop
the vehicle and turn off the engine . The coolant pump is not working
- this can cause engine damage!•
Applies to veh ic les : w ith safety belt warning l ight
Safety belt warning light 4
The warning light is a reminder to fasten safety belts.
The warning light 4 comes on for a few seconds after the ignition
is switched on as a reminder to fasten your safety belt.
Additional information on safety belts:::::>
page 137. •
I • •

Applies to vehi cles : wi th m anua l tra nsmi ssion
Function test: manual transmission
When the ignition is switched on, the Auto-Check Control automati­
cally performs an operational check . If the functions tested are O .K .,
no message is shown in the display.
If one or more faul ts exist, the driver information disappears
approximately 15 seconds after the engine has been started and the
appropriate fault symbol appears in the display.
If malfunctions exist , this is indicat ed by r ed (prio rity
1) or yellow
(priority
2) symbols. A warning signal sounds at the same time. •
Applies to vehicle s: with autom ati c tra nsm iss io n
Function test: automatic transmission
Th e Auto-Check Con trol will automatically p erform a test each tim e
you switch on the ignition. When the selector lever in
P or N, the
following message appears in the display :
WHEN STATIONARY APPLY FOOTBRAKE WHILE SELECTING GEAR.
When you a select a different gear (for example: R, D, etc.), the
messag e will disappear and th e Auto-Check function is display ed .
If the functions tested are O.K., no message is shown in the display .
If there is a malfunction, then the malfunction message will appear
about 15 seconds after the you start the vehicle. At the same time
you will hear a warning tone.
[ i] Tips
On vehicles with automatic transmission*, the driver message
WHEN STATIONARY APPLY FOOTBRAKE WHILE SELECTING GEAR
cannot be shown again. This driver message appears in the display
only un til a gear is engaged. •
Controls and equip ­
ment
Driver information system
Red symbols
A red symbol means DANGER.
Pull of the road and stop the vehicle.
Turn off the engine.
Fig . 22 Display : engine
coolant level warning
(priority 1)
Check the malfunctioning system . Contact your autho ­
rized Audi dealer or a qualified workshop for assistance.
The red symbols mean :
BRAKE
(Ci)
BRAKE
.J_
COOLANT
'e:1:
O IL
PRESSURE
-
USA models:
Malfunction in the brake system
Canada models:
Malfunction in the brake system
Engine coolant level too low/
engine coolant tempera ture too
high
Engine oil pressure
too low
-
~ page 32
~ page32
~ page32
~ page33
Red symbols indicate a priority 1 malfunc tion - Danger!
I • •

Driver information system
When a red symbol appears, a warning tone will sound consecu­
tively
three times. The symbol continues to flash until the malfunc­
tion has been repaired. If there are
more than one priority 1 malfunc­
tions, the symbols appear one after the other for about two
seconds.
[ i] Tips
• The message for a malfunction can be shown by pressing on the
left knob.
• During route guidance on vehicles with a navigation system, the
warning symbol is shown in the field above. •
Brake system malfunction
BRAKE (USA models) /
(CD) (Canada models)
A malfunction in the brake system must be repaired as
soon as possible.
When BRAKE/ (CD) (Canada models) appears in the display
and flashes, this means there is a malfunction in the brake
system. In addition to the symbol, one of the following two
messages also appears in the display:
STOP VEHICLE AND CHECK BRAKE FLUID
ABS FAULT! SEE OWNER'S MANUAL
- Pull of the road and stop the vehicle.
- Check the brake fluid level=>
page 230.
USA models: if there is a malfunction in the ABS system, the i:i
warning/indicator light illuminates along with the BRAKE system
malfunction warning/indicator light=>&.
Canada models: if there is a malfunction in the ABS system, the
warning/indicator light illuminates together with the ID brake
system malfunction warning/indicator light=>& .
& WARNING
• Always observe the warnings in=> page 212, "Engine compart­
ment", before opening the engine hood and checking the brake
fluid.
• Driving with low brake fluid is a safety hazard! Stop the car and
get professional assistance .
• If the brake system warning/indicator light illuminates
together with the ABS warning/indicator light, then the ABS
system is malfunctioning. The rear wheels could quickly lock up
when you apply the brakes. This could lead to loss of control _and
your vehicle could slide! Drive carefully to the nearest authorized
Audi dealer and have the malfunction corrected. •
Engine cooling system malfunction _t_
A malfunction in the engine cooling system must be
repaired as soon as possible.
When the _t symbol in the display flashes, then either the
engine coolant
temperature is too high, or the coolant level
is too low. In addition to the symbol, the following message
also appears in the display:
SWITCH OFF ENGINE AND CHECK COOLANT LEVEL
-Pull off the road and stop the vehicle .
Turn off the engine.
Check coolant level =>
page 228.
Add coolant if necessary => page 228.
-Continue driving only after the engine coolant
warning/indicator light goes out.

-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 • •

Warm and cold
Warm and cold
Climate controls
Controls
The air conditioning automatically maintains the selected
temperature in the vehicleinterior throughout each
se aso n.
Fig . 93 C limate co ntro ls
We recomme nd the following setting:
Rotate the knob=> fig. 93 @to th e right to switch on the
air conditioning.
Set t he temperature to 72 °F ( 22 °Cl.
Press th e !AUTO ]=> fig . 93 button.
Using the previously recommended setting is the quickest way to
achieve a comfortable climate in the vehicle . T his setting should
therefore on ly be changed when persona l comfort levels or certain
circumstances require it .
The climate contr ols are a combination of automatic heating and
ventilation systems and a cooling system which dehumidifies and coo ls the a ir inside the veh ic le .
The climate controls automa tically ma intain a temperature once it
has been set . T he temperature of the air from the vents, fan speed
(air volume) and air dis tribution are also automa tica lly adjusted . The
system also takes into account strong sunshine so that manual
adjustment is no t necessary. So in al most a ll cases,
automatic mode
offers the best conditions for the comfort of the occupants at all
times of the year~
page 101.
Please note :
In cooling mode, relative humidity in the interior is reduced. This
prevents the w indows from fogging up.
When relative humidity and temperatures outside are high,
conden­
sate
can drip from the air conditioning evaporator and form a poo l
of water under the vehicle . This is normal and not an indication of a
leak!
When outside temperatures are low, the fan does not switch to a
higher speed until the coolant has reached an adequate tempera­
ture, with the exception of the defrost setting .
When accelerating at wide -open throttle, the air conditioning
compressor is temporarily switched off to maintain full engine
power .
I n order to ensure eng ine cooling under extreme engine loads, the
compressor is switched off if coolant temperatures climb too high. _,,,

___________________________________________________ O _n_ t_h _ e_ r_ o _ a_ d __ ,n
Starting and stopping the engine
Starting the engine
The engine can only be started with on original Audi key
and the clutch pedal* depressed.
- Set the parking brake.
Move the selector lever to the neutral position (automatic
transmission: selector lever in P or N)
~ & .
- On vehicles with manual transmission, fully depress the
clutch pedal.
- Turn the ignition key to position
G) ~ page 106, fig. 101
- do not depress the gas pedal when starting the engine!
- Let go of the key as soon as the engine starts.
A cold engine may at first be loud after it has been started. This is
due to the hydraulic valves building up the oil pressure . This normal
and no need for concern.
If the engine does not star t immediately, stop trying after 10
seconds and then try to restart the engine about 30 seconds later.
& WARNING
Never start or let the engine run in a confined or enclosed area.
Exhaust fumes from the engine contain carbon monoxide, a color­
less and odorless gas. Carbon monoxide can be fatal if inhaled .
• Never leave the engine idling unattended. An unattended
vehicle with a running engine poses a danger of personal injury or
theft.
Controls and equip ­
ment
0 Note
• Avoid high engine speeds, fast acceleration or heavy engine
loads while the engine is still cold. This could damage the engine.
• The engine cannot be started by pushing o r towing the vehicle.
~ For the sake of the environment
To avoid unnecessary engine wear and to reduce exhaust emis­
sions, do not let your vehicle stand and warm up. Be ready to drive
off immediately after starting your vehicle. Maintain moderate
speed until the engine is completely warm. Remember, the engine
performs best at operating temperature. •
Stopping the engine
-Turn the ignition key to position G) ~ page 106 , fig. 101.
& WARNING
• Never turn off the engine until the vehicle has come to a
complete stop.
• The brake booster and servotronic only work when the engine
is running . With the ignition turned off, you have to apply more
force when steering or braking. Since you cannot steer and stop
normally, this can lead to accidents and serious injuries.
• 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. .,
I • •

_____________________________________________ C_h_ e_ c _ k_in -= g_a _ n_d _ f_il _li _n ..;::g =-- ____.ffllll
Checking and filling
Engine hood
Releasing the engine hood
The engine hood is released from inside the vehicle.
- Open the driver's door .
Fig. 147 Driver's side
footwell: engine hood
release lever
- Pull the release lever on the left under the instrument
panel => fig. 147 in the direction of the arrow.
The hood pops up slightly under spring pressure. •
Opening the engine hood
Fig. 148 Release lever
under the engine hood
Before opening the engine hood, make sure that the wind­
shield wipers are flat against the windshield. Otherwise,
they could damage the paint on the hood.
Lift the hood slightly =>& .
Pull up on the release under the hood=> fig. 148. This
releases the catch.
- Open the hood all the way.
The hood is kept in the open position by two gas struts.
& WARNING
Hot engine coolant can burn you.
• 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. •
Vehicle care I I irechnical data