182 Che ck ing and filling
may seriously degrade the corros ion pro-
tection. The resu lting damage can cause
loss of coo lant and subsequent ly lead to
se rious engine damage.
- The coolant additive
Gl2++ must not be
mixed wit h other coo lant add itives.
- Do not add any type of radiator leak sea l-
ant to your vehicle's engine coo lant.
Adding rad iator repair fluid may adve rse-
ly affect the function and performance of
your cooling system and could result in
damage not covered by your New Vehicle
Limited Wa rranty.
Checking the engine coolant level
Proceed carefully when checking the coolant .
Fig. 14 5 Convertible top: service position
Fig. 146 Convertible top sto rage bay: coolant expa n-
sion tank
Before you check anything in the eng ine com-
pa rtment,
alway s read and heed all WARN-
INGS c:::> ,&. in Working in the engine compart -
ment on page 175.
The coolant expa ns ion tank is located in the
right s ide of t he co nvertib le top st orage bay
under t he round metal cover
c::>fig. 146 . The
conver t ible top must be in the servi ce position
to check the coolan t leve l
c:::> fig. 145 .
Bringing the closed convertible top into
the service position
.,. Switch t he ignition on.
.,. Pull and ho ld the convertib le top switch.
.,. Press and hold the rear window switc h too
until the convert ible top moves into the
service pos ition
c:::> fig. 145 .
Bringing th e open convertible to into the
service position
.,. Switch t he ignit ion on.
.,. Press and hold the convert ible top switch.
.,. Press and hold the rea r window switc h too
until t he convert ible top moves into the
service pos it ion
c:::> fig. 145.
Opening the coolant expansion tank cover
.,. Stop the engine a nd allow it to cool.
.,. Switch t he ignit ion off .
.,. Carefully remove the bolts in the cover
(D
using a sc rewd river and remov e t he cover.
The coolan t rese rvoir is located be low
c:::> fig. 146 .
Checking the engine coolant level
.,. Place a rag or cloth on the cap of the coolant
expansion tank a nd turn the cap
carefully t o
the left (counte r-cloc kwise)
c:::> .&_ .
.,. Read the coolan t leve l inside t he coolan t ex-
pa nsion t ank
c:::> fig. 14 6. Wit h a cold eng ine,
it must be above the "m in" mark . With a hot
engine, it can be a litt le above the indicated
range.
To obtain an acc urate reading, the engine
must be sw itched off.
The expansion ta nk in your vehicle is eq uipped
with an electr ic coo lant level senso r
c::> page 32 . We sti ll rec om mend you check the
coolant leve l from time to time.
Coolant loss
Coolant loss may indicate a leak in t he cooling
system. In t he eve nt of cool ant los s, the coo l-
ing system should be inspec t ed immedi ately
by your a uthorized Audi dea ler. It is not
eno ugh mere ly to add coo lant .
ll-
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