
182 Checking and filling
Checking the engine coolant level
Proceed carefully when checking the coolant.
Fig. 144 Convertible top: se rvice position
Fig. 145 Convert ible top sto rage bay: coo lant expan
sion tank
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 173
and park your vehicle on a
level surface.
The coolant expansion tank is located in the
right side of the convertible top storage bay
under the round metal cover
c:::> fig. 145. The
convertible top must be in the service position
to check the coolant leve l
c:::> fig. 144.
Bringing the closed convertible top into
the service position
.. Switch the ignition on .
.. Pull and hold the convertible top switch .
.. Press and hold the rear window switch too
until the convertib le top moves into the
service position
c:::> fig. 144.
Bringing the open convertible to into the
service position
.. Switch the ignition on.
.. Press and hold the convertible top switch. ..
Press and hold the rear window switch too
until the convertible top moves into the
service position
c:::> fig. 144.
Opening the coolant expansion tank cover
.. Stop the engine and allow it to cool.
.. Switch the ignition off .
.. Care fully remove the bolts in the cover@
using a screwdriver and remove the cover.
The coolant reservoir is located below
¢fig. 145.
Checking the engine coolant level
.. Place a rag or cloth on the cap of the coolant
expansion tank and turn the cap
carefully to
the left (counter-clockwise)
c:::> .&, .
.. Read the coolant leve l inside the coolant ex
pansion tank¢
fig. 145. With a cold engine,
it must be above the "min" mark. With a hot
eng ine, it can be a little above the indicated
range.
To obtain an accurate reading, the engine must be switched off.
The expansion tank in your vehicle is equipped
with an electric coo lant level sensor
c:::> page 15. We still recommend you check the
coolant level 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 Audi dealer. It is not
enough merely to add coolant.
In a
sealed system, losses can occur on ly if
the boiling point of the coo lant is exceeded as
a result of overheating .
A WARNING
-- The cooling system is under pressure. Do
notopenthecapofthecoolantexpan
sion tank when the engine is hot. You
ris k be ing sca lded.
- The coolant additive, and therefore the
coo lant itself, is haza rdous to hea lth .
Keep the coolant additive in the original

container out of the reach of children. It
is a poison hazard.
@ Note
Do not add any type of radiator leak seal
ant to your vehicle's engine coolant. Add
ing radiator repair fluid may adversely af
fect the function and performance of your
cooling system and could result in damage
not covered by your New Vehicle Lim ited
Warranty.
Adding coolant
Before you check anything in the engine com
partment,
always read and heed all WARN
INGS q A in Working in the engine compart
ment on pag e 173.
"'Add coolant .
"'Twist the cap on again
tightly.
"'Tighten the cap (D q page 182, fig. 145
again.
Replacement engine coolant must conform to
exact specifications
q page 181, Coolant .
We recommend using only coolant additive
G12++, G13 or in an emergency G12 +. Do
not
use a different additive. In an emergency use
plain water until you can get the correct addi
tive and can restore the correct ratio. This
should be done as soon as possible.
If you have lost a considerable amount of
coolant, then you should add cold antifreeze
and cold water only when the engine is cold.
Always use
new engine coolant when refilling .
Do not fill coolant above the "max" mark. Ex
cess coolant will be forced out through the
pressure relief valve in the cap when the en
gine becomes hot.
A WARNING
- The cooling system is under pressure and
can get very hot. Reduce the risk of
scalding from hot coolant by following
these steps.
Checking and filling 183
- Turn off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering
the cap with a large, thick rag.
- Turn the cap slowly and very carefully
in a counter-clockwise direction while
applying light, downward pressure on
the top of the cap.
- 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" .
Q) Note
- Coolant pollutes the environment and
could cause an engine fire . Ex cess 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
q page 181 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.
Brake fluid
Have the brake fluid changed by an experi
enced t echnician.
Brake fluid absorbs moisture from the air. If
the water content in the brake fluid is too
high, corrosion in the brake system may result
afte r a period of time. The boiling point of the
brake fluid will also decrease considerably and
decrease braking performance. .,.. •
•

234 Index
Emergency release
F ro nt lid . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Park ing lock . .. ... .... ... .. .. .... ..
82
Emergency sta rting ...... .. .. .. .. .. . 2 17
Emergency towing ............. .. .. . 219
Energy management .... ... .. .. .... . 150
Battery power . ....... ... .. .. .... . 151
Driver notification . . . . . . . . . . . . . . . . . 151
Eng ine
Coolant ..... .. .. ..... ... .. .. .... .
181
Engine compartment lid ... .. .... .. . 17 2
Starting . . . . . . . . . . . . . . . . . . . . . . 68, 69
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Eng ine compar tmen t ................ 174
Safety ins truc tions ..... ... .. .. .... . 172
Eng ine compartment lid
C losing .. .. ................ ... ...
17 4
Release lever . ........... .... .... .
172
Eng ine coolant system ............... 181
Malfunct io n .......... .... .... ..... 15
Temperature ga uge .... .... .... ...... 9
Engine data . .... . ...... ... .. .. .... .
225
Eng ine oi l ..... ........... .. .. .... . 175
Adding .. ... ............ .. .. .. .. . 180
Addit ives .... .. .. ..... ... .. .. .... . 180
Chec king the engine oil level . . . . 178, 179
Dry s ump l ubrication . ... .. .. .. .. ... 149
Indications and cond it ions requ iring ex-
tra checking . . . . . . . . . . . . . . . . .
178, 179
O il consumption . ........... .. .. .. . 178
O il grades .. ................ ... ... 175
Specification and viscos ity . . . . . . . . . . . 17 5
T empe ratu re d isp lay ................. 8
Eng ine oil level ............ .. .. .... ..
17
E ng ine oi l pressure (malfunction) ... .. . . 14
E ng ine o il senso r defective ....... ..... 18
Eng ine speed limitat ion ... .. .. .. .. .. .. 1 7
E nvi ro nment
Cat alytic conve rter ........ .. .. .. .. .
153
D isposing of your vehicle battery . . . . . 185
Fu el . .... .. ... .. ..... ... .. .. .... . 169
Unleaded fuel .. .. ..... ... .. .. .... . 167
What should I do with an old battery? 185
EPC
refer to E lectronic powe r control . . . . . . 17
ESC (Electronic Stabilization Cont ro l)
War ning/ indicato r lights ... .. .. .. .. . .
15
Event Data Recorde r (E DR) . . . . . . . . . . . . 14 4
Exhaus t tai l pipes
Cleaning .. .... .. ............. ....
161
Expansion tank ..................... 182
Exterior mirrors
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . .
50
Dimming . ..... .. .. ... ..... ... .. .. . 50
Heating ... .... .. ............. .... . 50
F
Fan ... ... .. .... .. .. ... .. ..... ... .. . 64
Fastening
Boos ter seats .................... .
C o nvertib le child sa fe ty seats ....... .
Infant seats ..... ... .. ..... .... . . .
Flat bed truck
Flat tire Chang ing . .... .. ... .......... ... .
139
138
137
2 20
214
Floor ma ts . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Fold ing master key with remote control . . 28
Folding top
Care and cleaning . . . . . . . . . . . . . . . . . .
159
Foot ped als . .. .. .. ... .......... .... . 98
For the sake of the environment Gasoli ne fumes and t he e nvir onme nt ..
169
Letting your eng ine warm up ....... .. 69
Ref ueling . ...... ............. .... 169
Front a irbags
Description . . . . . . . . . . . . . . . . . . . . . . .
115
How they work ........ ........... . 120
Frontal collis ions and the laws of phys ics 104
Fron t lid
E mergency re le a se .. ........... .. .. . 34
li ght . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
so
Power locking system ... .... ... .. .. . 33
Tr unk escape handle . .. ..... ... .. ..
210
Fron t passenger
refer to Se ating posi tion . . . . . . . . . 94 , 95
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 57
Child rest raints in the front seat .. .. .. 112
Front towing loop ................... 220
Fuel
Additives . ... .. .. .. .... .... ... .. ..
167
B lended gaso line ... ... ..... ... .. .. 167
C ur rent fuel mileage . .. ..... ... .. .. . 21
Filler neck . ...... ............. .... 168