2012 OPEL GT air conditioning

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

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.

11 3Dr i vi ng and o pe r ati on
O ve rrun
zThe fuel s upply is automatically shut off
during ov errun, e. g. whe n the ve hicle is
being drive n down long gradie nts or
whe n braking – s ee page 1 11 .
zTo enable the ove rrun cut-off to take
effect a nd sav e fue l, during overrun do
not ac cele ra te and do not declutch.
Corr ect ge ar sel ec tion
zHigh revs increas e engine w ear and fue l
consumption.
zDo not race your engine. Avoid d riv ing at
high e ngine s pee ds .
Dr i v in g w i t h a n ey e o n t h e t a ch om et e r
save s fuel. I f pos sib le , drive a t low rev s in
each ge ar and a t a consta nt s pe ed.
Driv e in top g ear as m uch a s p os s ible,
shift up as s oon as pos s ib le and do not
shift down until the e ngine is no longe r
running truly . High speed
zT h e f a s t er t h e sp ee d, t h e h i g h e r t he f u el
consump tion and the noise level. Driv ing
at full throttle use s up a gre at de al of fue l
and g enerates excessive noise and high
e miss ion leve ls.
zSlightly relea sing the acce le rator ped al
res ults in distinct fuel s avings with no
major los s of spe ed.
Drive at no more tha n around thre e
quarters of max imum spe ed and you will
use up to 50% less fue l, without losing a
gre at de al of time.
Ty re pre ssure
zInade quate ty re p re s sure, leading to
higher road res istance , cos ts m one y in
two wa ys: more fue l and increa se d tyre
we ar.
zRe gular checks (e very 14 d ays ) pay off.
Ele ctri cal lo a ds
zThe power cons um ption of e lectrical
equip ment increa ses fuel consumption.
zSw itch off ad ditional c ons umers (e. g.
air conditioning, heate d re ar window)
when they are no longer required. Re pai r and m ainte nance
zImprope r repairs or adjus tm ent and
maintenance work can increase fuel
consumption. Do not carry out w ork on
the eng ine yourself.
You ma y infring e environmental la ws out
of ignorance by not d isposing of
materials prope rly.
Appropriate parts might not b e re cycle d.
Contact with some of the mate ria ls
involved may pose a health hazard.
zWe re com mend that repair and
maintenance be entrusted to your O pel
Se rv ice Partner.
E xtr em e d riving conditions
zDriv ing up s te ep gradie nts , cornering,
driving on poor roads and winte r driving
all increas e fue l consumption.
Fue l consumption increa se s dramatically
i n ur b a n t ra ff i c a nd a t w i n t er
tempe ratures, e spe cially on short trip s
w h en t h e e n g i ne o p er a t i n g t e m p e ra tu r e
is not reached.
zFollow the hints given above to keep
consumption to a m inimum under suc h
cond itions .

164 Self-help, vehicle care
Locks
The locks are lubrica te d with a high-grade
lock cy lind er gre ase at the factory. O pe l
L oc k Cy lind er Gre ase pre vents the locks
f r o m f r ee z i ng up . On l y u s e d e - i c i ng a g en t s
in eme rgencie s, a s they hav e a de greas ing
e ffe ct and will im pair the function of the
locks. After using a de-icing agent, have
the lock s re -grease d by a workshop.
E ng ine compar tme nt
Areas of the engine compartme nt that are
painted in the same colour as the vehicle
must be looked after lik e any other p ainted
surface.
It is adv isable to was h th e e n gin e
compartme nt be fore and afte r winte r and
pre se rve it with wax. Cove r alternator and
brake /clutch fluid res e rv oir with plastic
sheets before washing the engine.
W hen was hing the e ngine with a s te am-je t
cle ane r, do not d ire ct the ste am-jet a t
components of the Anti-lock Brake System
(ABS), a ir conditioning syste m, climate
control sy ste m or the b elt drive and its
components . Prote ctive wax that has be en ap plied is
also re move d during the e ngine wash. F or
this reas on, have the e ngine, brak e s ys te m
components in the engine compartment,
axle com pone nts with ste ering, body parts
and cavitie s thoroughly pre se rved by a
work shop using protective wax .
An engine w ash ca n be p erformed in the
spring in orde r to remov e dirt that has
adhere d to the e ngine comp artment,
whic h may also have a high s alt content.
Check protectiv e w ax la yer and ma ke good
if necessary.
D o no t u s e hi g h - p r e ss u r e j e t cl ea ne r s.Underbod y
Your v ehicle ha s a durable protective
coating in the whee l arches (includ ing the
longitudinal mem bers ), which provide s
pe rmanent prote ction a nd need s no
s p e c ia l m a i n t e n a n c e .
O n ve hi cl e s w h ic h a r e w a sh ed f r equ e nt l y
in automatic ca r washe s with unde rbody
was hing facility, the protective coating
ma y be impaire d by dirt-diss olving
a dd i ti v es , s o ch eck t h e u n der b od y a f t er
was hing and have it wax ed if ne ce ss ary.
Be fore the sta rt of the cold we ather se ason,
che ck the c oa ting and, if ne ces s ary, have it
re stored to perfe ct condition.
C aution – com mercially available bitumen/
rubbe r m aterials can damage the coating .
We recommend that you have underbody
work carrie d out by a workshop, who
knows the p rescrib ed materials and has
experience in the use thereof.
The underbody should be washed
following the e nd of the cold weathe r
s eas on to remov e any dirt adhering to the
underbody since this may also contain salt.
Check p rotective wax coa ting and, if
nec essary , have it restored to perfec t
condition.