cooling OPEL GT 2011 User Guide

152 Self-help, vehicle care
Op el genuine p arts an d
ac ce ss or ie s
We recommend that you use " Opel
ge nuine parts and acce ss ories " and
convers ion parts rele ase d e xpres s ly for
your vehicle ty pe. These parts have
undergone spe cial te sts to e stablish the ir
reliab ility , safe ty and spe cific suitability for
Opel v ehicles. Desp ite continuous market
monitoring, we ca nnot a ss es s or guarante e
these attribute s for other p roducts, e ve n if
they have bee n granted approval by the
rele vant authoritie s or in some other form.
"O pel genuine pa rts and a cces s orie s" and
approve d conve rsion parts can be
obtained from your Op el S ervice Partne r,
who can provide comp rehensive advice
about pe rmitted te chnic al changes and
e ns ure that the part is installe d correctly.
A note on safety
To avoid injury from moving p arts a nd
cables conducting ignition volta ge, only
carry out engine comp artm ent che cks (e .g.
checking b ra ke/clutc h fluid or engine oil
leve l) when the ignition is s witche d off.N eve r carry out any repairs or adjustment
and m aintenance work on the vehicle
y ours elf. This es pe cially applie s to the
eng ine, chassis a nd safety p arts. You may,
out of ignorance, infringe the provisions of
the law and, by not pe rforming the work
properly, you may endanger yourself a nd
other road use rs.
C he cki ng a nd topp ing u p fl ui ds
T h e en g i n e o i l d i p st i ck ha ndl e a n d t h e
inform ation on the caps for topping up
coolant and brak e/ clutc h fluid a re ye llow,
for e ase of identification.
9 Warning
The cooling fan is controlle d by a
t h er m o s w i t ch a n d ca n th e r ef o r e s t a r t
unexp ectedly, even if the ignition is
switched off. Risk of injury.
E l ect r o n ic i g n i t io n s ys t em s u s e a ve r y
high voltage. Do not touch the ignition
system; danger to life.

154 Self-help, vehicle care
Top up with the sam e b rand of engine
oil that was used d uring the previous
e ngine oil change, following the
instructions in the chapter " Se rv ice,
Maintenance " on page 1 65 .
To close, p osition the cap and screw it
into place .
Ca pacities – se e p age 18 2 .Engine oil c hange , e ngine oil filte r c hange
Pe rform change in accordance w ith the
cha pter " Servic e, M ainte nance" on
page 16 5 .
Engine oil c hange s are to b e ca rrie d out
depe nding on time or kilometre /mile age
inte rvals , or whe n the e ngine oil life monitor
indica tes that engine oil life has be en
diminished , s ince e ng ine oil lose s its
lubrication prope rtie s not only through
engine ope ration but also through age ing .
We rec om mend us ing an original O pel
engine oil filte r.
Reme mbe r to reset the e ngine oil life
monitor whenever the engine oil is
cha ng ed. See k the as sis tance of a
work shop.
C oolant
D u r i n g o p e r a t i o n t h e sy st e m i s p r es su r i z e d .
T h e t em p er a t u r e m a y t h e re f o re r is e t o ov er
100 °C.
The glycol-bas ed coolant p rov id es
excellent corrosion protection for the
hea ting and cooling sy ste ms as well a s
antifree ze prote ction down to –28 °C. It
re mains in the cooling sy ste m throug hout
the yea r and nee d not be changed.
Us e of certain antifre ez es can le ad to
eng ine damage. We therefore recommend
the use of antifre eze s tha t ha ve bee n
app rov ed.
9 Warning
E mpty engine oil cans m us t not be placed
in the domes tic refus e. We rec om mend
that you entrus t engine oil and e ngine oil
filter change s to a works hop who is
familiar with the legal requirem ents
concerning the disposal of used engine
oil and filters , a nd can thus he lp protect
t h e en vi r o n m en t a n d yo ur he a l t h .9 Wa r nin g
Antifree ze is a dange r to health; it m ust
the refore be ke pt in the original container
and out of the reach of children.

15 5Self-help, vehicle care
Antifreeze and corrosion protecti on
Be fore the start of the cold we ather se ason,
have the coolant che cked for corre ct
concentration.
T h e a m o un t o f a n t i f r ee ze m u st p r ov i de
protection up to ap prox . – 28 °C . If the
antifre ez e conce ntration is too low, this
red uces protection from freezing and
corrosion. Top up antifre eze if nece ss ary.
If coolant loss is toppe d up with wate r,
have concentration checke d and add
a n t i - f re ez e i f n e ces sa ry .Coolant lev el
Hardly a ny loss es occur s ince the cooling
sy ste m is se aled and it is thus rare ly
ne cessary to top up the coolant.
The coolant should be just ab ov e the arrow
marke d CO LD F IL L in the e xpansion tank
with a cold cooling s ys tem. The coolant
leve l can be rea d from the outs ide of the
exp ansion tank.W h en t h e en g i n e is a t op er a t i n g
te mperature the coolant le vel rises. I t falls
aga in when the system cools. If it falls
be low the COLD FILL mark when the
system is cold, top up to the mark.
Top up a ntifreeze. If no antifreeze is
av ailable, top up with cle an tap wate r.
If tap water is unavailab le, distilled water
can b e used.
After topping up with drink ing water or
dis tilled w ater, c he ck the antifre eze le vel
and a dd antifree ze if re quired. Have the
caus e of the coolant loss rectifie d by a
workshop.
Too low a coolant le ve l can caus e e ngine
dam age.
To close , pos ition the cap and s crew it into
place .
9 Warning
Allow e ngine to cool down be fore
rem oving coola nt filler cap . Rem ov e filler
cap care fully s o that p res sure can es cape
s low ly, otherwis e the re is a risk of
scalding.