2012 OPEL GT cooling

18 In brief
Advice when parking:
zDo not the park v ehicle on easily
ig nitable surfaces. The high temperature
of the ex haust system could ignite the
su r f a c e.
zAlwa ys apply the hand brak e firmly.
Ap ply the ha nd brake as firm ly as
possible on uphill or downhill slopes. To
re duce operating forces , d epre ss brake
pedal at the s ame time .
zClose windows.
zBefore switching off ignition, e ngage first
or re ve rse ge ar.
zIf the vehicle is parke d on a leve l surface
or an up hill incline, engag e firs t gear
before switching off ig nition. O n an up hill
incline, also turn the front whe els away
fr o m th e k e r b .
zIf the ve hicle is on a d ow nhill incline,
engage re vers e gear before s witc hing off
the ignition. Also turn the front whee ls
to w a rd s t h e k e rb . zTurn ste ering whe el until lock is felt to
e ng age (anti-theft protection), re moving
i g n i t i o n k ey b e fo r e ha nd .
zSw itch off exterior lam ps, otherwise the
hea dlamp wa rning de vice will s ound
when the driver’s door is opened.
zThe engine cooling fans may run a fter
t h e en g i n e h a s be en s w i t ch ed o ff -
s ee page 1 52 .
6F urthe r information - s ee pag es 1 59 to
160.
Tha t wa s the most imp ortant
information for your first drive in
y our v ehicle in brief.
The othe r p age s o f thi s chap te r
con tain a summa ry of the
interesting fun ction s in your
vehicle.
T h e re m a in in g c h apt e r s o f t h e
Owner’s Ma nua l conta in
impo rtant information
on op era tion, sa fety a nd
ma intena nce a s well as a
com plete index.

58 In struments, controls
pAlternat or
Control indicator illum inate s in red.
Illuminates for a few seconds when the
ignition is s witched on.
If it illuminates whe n the e ng ine is running:
Stop a nd sw itch off engine. Ba ttery is not
be ing cha rg ed: E ngine cooling may not be
opera ting. Consult a workshop.
v
E lec tronic St abili ty P rogra m ( ES P) ,
E lec tronic St abili ty C ontrol ( ES C)
Control indicator illum inate s or flashe s in
ye llo w.
Flashing during driving:
Sy ste m active ly e ngage d - s ee page 1 1 8.
If it illuminates while driving:
Sy ste m switched off or fault in E le ctronic
Stab ility Prog ra m (ES P) – s ee page 1 18 .
>
Fr o n t f o g la mp s
Control indica tor illuminates in gre en.
Illum inate s when the front fog la mps are on
– s ee page 7 5.
oEle ctronic imm obilis e r
Control indica tor illuminates or flas hes in
yellow.
If it illum ina te s when the ignition is on:

Fault in the immobilis er s ys te m; the engine
cannot b e s tarted - se e page 21 .
Instrument display
T a c h o m et er
Mak ing use of the tachome ter he lps to
save fuel; it indica tes the engine speed.
W arning zone on right: m aximum
permissible engine speed exceeded,
danger to engine.
If p os s i bl e, dr i ve in e a ch g e a r i n t h e lo w
e ng i ne s p ee d r a n g e ( bet w e en a p p r o x.
2000 and 3000 rpm) and maintain an even
ve h icle s pe ed.

102 Climate c ontrol
Climate control
Heating, ventilation and
air cond itioning system
Ve ntilation, he ating and cooling are
combined into one unit that is d esigne d to
prov ide com fort re gardle ss of the s e ason,
weather or outside temperature.
Whe n cooling is ac tiv ated, the air is cooled
and dried .
The heating unit hea ts the air as require d
in all operating m od es de pending on the
position of the te mpe ra ture rotary switch.
The air s upply ca n be adjus ted to suit
re quireme nts by me ans of the fan.
Air conditioning s yste m – se e page 10 7 .
Air vents
Plea sant ventilation of the interior is
controlle d by the position of the
te mperature rota ry switch.
To increase the air supply, switch the fan to
a higher setting and set the air distrib ution
rotary switch toM orL.
C entre ai r ve nts
Direc t the flow of air by tilting and
swivelling the slats. He ating , ve ntilation and
air co n dition in g s ys tem . ..... .... .... ..... 10 2
A ir ve nts .. .... .... ..... .... ..... .... ..... .... .... ..... 10 2
He ated re ar win do w ..... .... ..... .... .... ..... 10 3
He ating an d ve n tila tio n s ys tem ... ..... 10 4
A ir co n dition in g s ys tem .... ..... .... .... ..... 10 7
A ir in take . .... .... ..... .... ..... .... ..... .... .... ..... 10 9
No te .... ..... .... .... ..... .... ..... .... ..... .... .... ..... 10 9
Main ten an ce ... ..... .... ..... .... ..... .... .... ..... 10 9

10 7Climate control
A ir conditioning sy stem
A s well a s th e ef f e ct o f the h ea tin g an d
cooling system, the air conditioning sy stem
als o cools a nd dries the inflowing air.
If no cooling or drying is re quire d, s witch
t h e c oo l i n g s ys t em o ff t o sa ve f u el .
At low outside te mpera ture s, the cooling
unit switche s off automatically .
Coolingn
Ope rate only with the e ngine running and
the fan on:
Control indica tor in b utton.
If the fan is off, the c ontrol indicator will
flash three time s the n go out. Air
conditioning is not available with the fan
off.Air re-c irculat ion sy ste m4
The air re-circulation button4 is
used to se t the ve ntilation system to
re -circ ulation mode (control indica tor
illuminates in button).
I f f u m e s or un p l e a sa nt od ou r s p e ne t r a t e
the passenge r compartme nt from outside,
te mporarily s witch on air re-circulation
system.
To increa se the cooling powe r at high
outside te mperature s, temporarily switch
on air re -circulation system. On = P r e ssn
Of f = P r e ssn ag ain

108 Climate c ontrol
The a ir re-circulation sy ste m minimises
the e ntry of outside air. The hum idity
increases, and the windows can m ist up.
T h e qu a l i t y o f t h e p a s s en g e r co m p a r tm en t
air de teriorates which ma y cause the
ve hic le occupants to fee l drowsy.
Air distrib ution to K, J or V:
air re -circ ulation s ys tem is a utomatically
switched off, to speed up wind ow
de misting a nd avoid fogging. The control
indicator in the b utton goes out.
If air d istribution rotary sw itch is turned
back to positions M or L, the air re -
circulation system is switched ba ck on and
the c ontrol indicator illuminates in the
button.Convenience sett ings
zSe t coolingn as de sire d.
zAir re-c irculation syste m4 off.
zSe t air distribution rotary switch
toMorL.
zSe t temp erature rotary switch to d esired
pos ition.
zSw itch on fan a t des ired spe ed .
zO pen or align a ir vents as require d.
Te mpe rature rotary switch in ce ntre of
adjustme nt range : warme r air will flow into
the foot well a nd cooler air into the upp er
zone , with warm er air coming from the side
air vents and cooler air from the ce ntre air
ven ts .Ma xim um cooling
Brie fly ope n the w indow so that the heate d
air ca n diss ipate quickly.
zCoolingn on.
zActivate air re-circulation sy ste m4.
zSe t air distribution rotary switch toM.
zTurn the temp erature rotary switch anti-
clockwis e as far as it w ill go (cold).
zSe t fa n to 4.
zOpen sid e air vents.

10 9Climate control
Air intake
The a ir intak es in front of the windsc re en
in the e ngine comp artment must be ke pt
cle ar to allow air intake . Re move any
lea ves , d irt or snow.
No t e
If the windscreen mists up during d amp
weathe r, tem pora rily se t the sy ste m as
described under "Dem isting a nd defrosting
the windows" - see pag e 106.
Cooling functions most efficie ntly whe n the
w i nd ow s a re cl o s ed. If t h e p a ss en g e r
compartme nt has he ated up cons ide ra bly
afte r a long period in dire ct s unlight, briefly
op en the wind ow s so that the hot air can
es cape quickly.
Whe n cooling (air conditioning
compres s or) is s witched on conde nsation
forms, which is expelled from the underside
of the vehicle.
At leas t one air vent mus t be open w hile
cooling (air conditioning comp re ss or) is on,
in orde r to pre vent the ev aporator from
icing up due to lack of air m ov eme nt.
At low outs ide temp eratures the c ooling
unit s witches off automatically.
Maintena nce
In order to ensure continuously efficient
pe rforma nc e, the air conditioning
compre ss or mus t be operate d for a fe w
minutes once a month, irrespectiv e of the
weather and time of yea r. Air conditioning
compre ss or operation is not poss ible whe n
outside temperatures a re low.
In the ev ent of a fault, consult a workshop.

1 1 0 D r iv in g an d o p e ra t io n
Driving and operationD r iv in g h in t s
The first 1000 km (600 miles)
D ri v e y o ur v eh i cl e a t va r i o u s sp e ed s.
Do not use full throttle. Nev er allow
the e ngine to labour at low re vs .
Make good use of all ge ars . De pres s the
accele rator ped al a ma ximum of around
thre e quarters of the available p edal trave l
in all gea rs .
Do not d riv e faster than three quarte rs of
maximum spe ed .
D o no t b r a k e un n ec es sa r i l y ha rd f o r t he
first 200 km (120 miles).
Never coast w ith engine not running
Many units w ill not function in this situation
(e .g. brake se rvo unit, powe r ste ering).
Driv ing in this ma nne r is a dange r to
yo u rs e lf and o the rs.
Brake servo unit
When the engine is not running, the brake
servo unit is no longer effective once the
brake peda l has bee n depre ss e d once or
twice. Braking effe ct is not re duced , but
significantly gre ater force is re quired for
braking. Power steering
If th e po wer ste er in g f ails o r wh en be in g
towe d with the e ngine switched off, the
ve hicle c an still be s tee red, but
consid erably more force is required.
D riv ing in m ount ainous te rrain
The cooling fan is e lectrically op erate d.
Its cooling powe r is the refore inde pende nt
o f t h e en g i n e s p e ed.
S ince a c onsiderab le am ount of heat is
ge nerate d at high e ngine s pee ds and les s
at lowe r s pee ds, do not s hift down whe n
climb ing hills while the ve hic le is s till coping
with the gradient in the hig he r ge ar.
D riv ing wi th a roof loa d
N ot permitte d.
Sw itching off the engi ne
When y ou switch off the e ngine , fans in
the engine com partment m ay continue
running for a while , to c ool the engine .
If the engine te mpe rature is very high, e.g.
afte r driving in mountainous terrain, allow
the e ngine to idle for ap prox . 2 minutes , in
orde r to preve nt heat accumulation.
V eh i cl es w i t h t u r bo ch a r g ed en g i n e:
After running at high eng ine speeds or high
e ng ine loads, op erate the engine brie fly at
a low load or run in neutral for approx.
3 0 se c o n d s b ef o r e sw i t c h i n g o f f , i n o r d er
to protec t the turbocharger. D rivin g h in ts .... ..... .... ..... .... ..... .... .... ..... 11 0
Saving fuel, protecting the
en viro n men t . ..... .... ..... .... ..... .... .... ..... 11 2
F ue ls, ref u ellin g .... .... ..... .... ..... .... .... ..... 11 4
Ca ta lytic converter, exhaust g ases... 116
D rive co n tro l s ys tem s ... .... ..... .... .... ..... 11 8
Brake s ys te m ... ..... .... ..... .... ..... .... .... ..... 12 2
ABS u..... .... .... ..... .... ..... .... ..... .... .... ..... 12 4
W h ee ls , ty res ... ..... .... ..... .... ..... .... .... ..... 12 5

11 1Dr i vi ng and o pe r ati on
Sav e ene rgy – m ore k ilome tre s / mile s
Please observe the running-in hints on
the p re vious page and the tips for s aving
e ne rgy on the following pa ges .
Good, te chnica lly correct and economical
driving e nsures ma ximum durability and
performance for your vehic le.
O verrun
The fue l supply is autom atically s hut off
during overrun, e.g. when the vehicle is
be ing driven down long gradie nts or whe n
braking. To enable the ove rrun cut-off
to take e ffe ct, do not acc elerate during
overrun and do not declutch. To prevent
dam age to the cata ly tic conve rter, ove rrun
cut-off is temp orarily de activate d whe n the
cataly tic conv erte r tempe rature is high.
V eh i cl es w i t h t u r bo ch a r g ed en g i n e:
F l ow -g en er a t e d n o i se s m a y be a ud i bl e
if the a ccele rator is re leas ed quickly, on
account of air flow in the turbocharger. Engine speed
D ri v e i n a l o w en g i n e s p ee d r a n g e f o r ea ch
gear a s m uc h as poss ible.
Wa r m in g u p
Run engine wa rm , do not wa rm up in idle.
Do not a pply full throttle until the
op erating te mperature has b ee n reache d.
Corre ct g ear se le ction
Tra ns mis sion in neutral and without
re vving in the lower gears . S top-a nd -g o
tra ffic a nd driving at a spe ed too hig h for
the s ele cted g ear incre ase s wear and fue l
consumption.
Change dow n!
When decreasing speed, shift down into
the next lowe st ge ar. Do not slip the clutch
with a high-re vving engine. This is
es pecially important when hill climb ing.
Clutch op era tion
Alw ays dep ress the clutch pedal hard to
the floor to prev ent shifting difficultie s and
tra ns mis sion dam age.
Whe n driving, do not us e the ped al as a
foot re st; this will ca us e subs tantial clutch
wear.Cooling fan
The cooling fan is controlle d v ia a
therm os witch and the re fore only runs if
nec essary .
Pedals
Do not place any ob je cts in the foot we ll
which could slip under the ped als and
inhibit the pe dal trav el.
To ensure the pedal travel is uninhibited,
there must be no unre strained mats in the
are a of the p edals .
Bat tery ca re
W hen driving slowly or whe n the v ehicle is
stationary, e.g. in slow urban traffic, stop-
and-go traffic or traffic jams, turn off all
unnecessary electrical load s w here
pos sible (e. g. he ated re ar window).