2012 OPEL GT brake

160 Self-help, vehicle care
Vehicle decomm issioning
O bse rve na tional re gulations.
If the vehicle is decomm issioned for several
months, the follow ing work must be ca rried
out by a workshop in orde r to pre vent
dam age.
zWash and preserve the vehicle –
see pa ge 161.
zCh eck p r es er v a t io n i n e n g i ne
com partment a nd on unde rbody a nd
make good where nec essary .
zCl ea n a nd p r es er v e r u bbe r s ea l s o n
bonne t and doors.
zChange engine oil – se e page 15 4 .
zCheck antifre eze and c orros ion
prote ction – s ee page 1 55 .
zCheck the coolant lev el, top up with
antifree ze if nece ss ary – s ee page 1 55 .
zEm p t y w i n d sc re en w a sh e r sy st e m .
zInc rease tyre pressures to value specified
for full load – se e page 18 0 .Ve h ic le s to r a g e
zPark v ehicle in a dry, well ventilated
place . E ngage firs t or re vers e gear. Use
chocks or the like to prevent the vehicle
from rolling .
zDo not apply hand brake .
zDis conne ct battery by dise ngaging
neg ativ e te rminal from ve hicle e lectrical
s ys tem – s ee page 1 59 .
Vehicle recommissioning
O bse rve national re gulations .
Perform the following work before
recommissioning the vehicle:
zConnect ba tte ry – se e page 15 9 .
zCheck tyre pressure s and correct if
ne ce ss ary – se e page 18 0 .
zFill up w inds cre en was her s ys tem –
se e page 72 .
zCheck engine oil leve l – se e p age 15 3 .
zCheck the coolant le vel; top up with
antifre eze if nece s sary – s ee page 1 55 .
F it the lice nse plate if nece ss ary.

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.

166 Service, maintenanc e
Euro pean service schedule
(Opel GT - Z 20 NHH)
⊕Add it iona l o per at ions.
o Und er extreme o peratin g cond itions a nd if req uired by country-sp ecific co nditio ns, the in terva ls are red uced.
S ervice operations
by y ear 1)
km ( x 1000)1)
miles ( x 1000)1)
1)Wh ic h e v e r o cc u r s fi rs t.
1
30
202
60
403
90
604
120
805
150
1006
180
120
C ontrols , lighting , s igna lling equipme nt and airbags : v isual che ck
s tee ring lock and ignition lock: che ckxxxxxx
Re mote control batte ries: re place Eve ry 2 y ears
Windsc reen w ipers, windscreen washer system: check, correct x x x x x x
C oolant le ve l and antifree ze: check, correct
Hoses: check for tightness and secure seatingxxxxxx
Brak e fluid le vel: check, correct x x x
Batte ry te rmina ls: check for sec ure connections a nd battery ey e x x x x x x
Pollen filter: replacexxx
oM o re o f ten f o r wh en du s t, s an d o r po llen is in th e air A gree me nt w ith c us to mer
Air cleaner element: replace
Every 4 yea rs/60 000 k m/40 000 miles
⊕Spark plugs: replace Every 4 yea rs/60 000 k m/40 000 miles
Ribb ed V -be lt: vis ual check x x x
⊕Re place Every 10 years/150 000 km/100 000 miles
Powe r ste ering s ys tem: check for leaks . F luid le vel: check, correct x x x x x x
E ngine oil and oil filter: replac e
2)
2)En gine oil life monitor may indica te a n earlier engine o il an d oil filter ch ang e is neces sary. See p ag es 63, 69, 15 1.
xxxxxx
Parking b ra ke: check and adjus t
W hee l mounting and s us pe ns ion front and re ar, b rake line s, brake pres s ure
hoses, fuel lines a nd exhaust system: visual checkxxx

16 7 Service, maintenance
Servi ce operations
by y ear 1)
km ( x 1000)1)
miles ( x 1000)1)
1)Wh ic h e v e r o cc u r s fi rs t.
⊕Add it iona l o per at ions.
o Und er extreme o peratin g cond itions a nd if req uired by country-sp ecific co nditio ns, the in terva ls are red uced.
1
30
202
60
403
90
604
120
805
150
1006
180
120
Corrosion p rote ction: check and record in Serv ic e and Warranty Book let Annually
F ront and rear whe el b ra kes : che ck vis ually x x x
o
⊕Annual se rvice che ck if annual m ile age ex cee ds 20 0 0 0 km Annually
E ngine , transm iss ion, A/C compre ss or: chec k for leak s x x x x x x
Steering system boots, trac k rods, final drive: visual check x x x x x x
Track rod end and supporting ball joint: che ck x x x x x x
⊕Brake and clutch fluid: change Eve ry 2 y ears
W hee l faste ning: loose n and tighten to torque
Tyre condition a nd pres sure s: check, correctxxxxxx
⊕Annual se rvice che ck if annual m ile age ex cee ds 20 0 0 0 km Annually
F irs t aid kit, tyre rep air kit and las hing ey es : v is ual che ck Eve ry 2 y ears
He adlamp aiming: che ck, a djus t x x x
Door hing es , door s top , lock c ylind er, lock strike r, bonnet c atch, tailgate
hinges and check links: lubricate xxx
o
⊕F old ing roof: lubricate (in dusty conditions ) x x x x x x
Test drive, final check
Se rvice inte rval dis play and oil life m onitor: re se t - if ap plicablexxxxxx

168 Service, maintenanc e
International service schedule
(Opel GT - Z 20 NHH)
⊕Add it iona l o per at ions.
o Und er extreme o peratin g cond itions a nd if req uired by country-sp ecific co nditio ns, the in terva ls are red uced.
S ervice operations
by year 1)
k m ( x 1000)1)
miles ( x 10 0 0)1)
1)Wh ic h e v e r o cc u r s fi rs t.
15
101
30
2045
302
60
4075
503
90
60
C ontrols , lighting , s igna lling equipme nt and airbags : v isual che ck
s tee ring lock and ignition lock: che ckxx xx xx
Re mote control batte ries: re place E very 2 ye ars
Windsc reen w ipers, windscreen washer system: check, correct x x x x x x
C oolant le ve l and antifree ze: check, correct
Hoses: check for tightness and secure seatingAnnually
Brak e fluid le vel: check, correct x x
Battery termina ls: check for sec ure connections a nd battery ey e Annually
Pollen filter: replace Eve ry 2 y ears /6 0 00 0 km/ 4 0 0 0 0 miles
oMore often for when dust, sand or pollen is in the air Annually/15 000 km/10 000 m iles
Air cleaner element: replace Every 4 years/60 000 km/40 000 miles
oMore often for when dust or sand is in the air Annually/15 000 km/10 000 m iles
⊕S park plugs : re place Eve ry 4 y ears /6 0 00 0 km/ 4 0 0 0 0 miles
R i bb ed V - be l t : vi s u a l ch eck Eve r y 2 y ea r s /6 0 00 0 km / 4 0 0 0 0 m i l es
⊕Re place Every 10 years/150 000 km /100 000 miles
Power steering system: check for leaks. Fluid level: check, correct Annually
E ngine oil and oil filter: replac e
2)
2)En gine oil life monitor may indica te a n earlier engine o il an d oil filter ch ang e is neces sary. See p ag es 63, 69, 15 1.
xx xx xx
Parking b ra ke: check and adjus t
W hee l mounting and s us pe ns ion front and re ar, b rake line s, brake pres s ure
hoses, fuel lines a nd exhaust system: visual checkEvery 2 years/60 000 km/40 000 miles

16 9 Service, maintenance
Servi ce operations
by y ear 1)
km ( x 1000)1)
miles ( x 1000)1)
1)Wh ic h e v e r o cc u r s fi rs t.
⊕Add it iona l o per at ions.
o Und er extreme o peratin g cond itions a nd if req uired by country-sp ecific co nditio ns, the in terva ls are red uced.
15
101
30
2045
302
60
4075
503
90
60
Corrosion p rote ction: check and record in Serv ic e and Warranty Book let Annually
Front and rear wheel b ra kes: check visually Every 2 yea rs/60 000 k m/40 000 miles
o
⊕Annual se rvice che ck if annual m ile age ex cee ds 20 0 0 0 km Annually
E ngine , transm iss ion, A/C compre ss or: chec k for leak s Annually
Steering system boots, trac k rods, final drive: visual check Annually
Track rod end and supporting ball joint: che ck Annually
⊕Brake and clutch fluid: change Eve ry 2 y ears
W hee l faste ning: loose n and tighten to torque
Tyre condition a nd pres sure s: check, correctEvery 2 yea rs/60 000 k m/40 000 miles
⊕Annual se rvice che ck if annual m ile age ex cee ds 20 0 0 0 km Annually
F irs t aid kit, tyre rep air kit and las hing ey es : v is ual che ck Eve ry 2 y ears
Headlamp aiming: check, a djust Every 2 yea rs/60 000 k m/40 000 miles
Door hing es , door s top , lock c ylind er, lock strike r, bonnet c atch, tailgate
hinges and check links: lubricate Every 2 yea rs/60 000 k m/40 000 miles
o
⊕F old ing roof: lubricate (in dusty conditions ) Annually
Test drive, final check
Se rvice inte rval dis play and oil life m onitor: re se t - if ap plicablexxxxxx

17 1Service, maintenance
Use of ACEA A1/B1 and A5/B5 engine oil is
expressly forbidden, since they can cause
long-term e ngine da mage und er ce rtain
ope ra ting conditions.
Engine oil additives
The use of engine oil additives could cause
dam age and invalidate the warranty.
E ng ine oi l vis cos ity
SAE 0W-30, 0W-40, 5W-30 or 5W-40
The SAE vis cosity rating defines the ability
of an oil to flow. W he n cold, oil is more
viscous than when hot.
Multigrad e oil is indicated by two figure s.
The first figure, followe d b y a W, ind ic ates
l ow t em p er a t u r e v i sco s i t y a n d t h e se co n d
figure the high te mpera ture vis cosity.
Coolant and antifreeze
Use antifreeze of recommended
spe cification: silicate -free LL C (L ong L ife
Coolant).
The s ys te m is factory-filled with coola nt
designed for frost protection down to
approx. -2 8 °C . This conce ntration s hould
be m ainta ine d all y ear-round.
Coolant additive s inte nd ed to g ive
additiona l corrosion protection or seal
against m inor le aks can ca us e function
prob lems . L iability for cons eque nce s
re sulting from the use of coola nt a dditives
will be rejec te d.
Brake and clutch fluid
O nly use DO T3 or DO T4 brake fluid.
O ver tim e, brake fluid abs orbs mois ture
which will re duce b raking effe ctivene ss .
T h e br a ke f lu i d sh o u l d t h er e fo r e be
re placed at the s pe cifie d interv al.
Brake fluid should b e stored in a sealed
container to av oid wate r abs orption.
E ns ure it does not becom e contaminate d
with fluids containing mineral oil (oil,
pe trol, clea ne r) as this can damage the
seals and sleeves of the brake system.
9 Wa r nin g
Brake fluid is pois onous !
9 Wa r nin g
Due to its corrosive nature, it must not
come in contact with the paintwork . Flush
any e scap ed b rake fluid w ith p lenty of
water.

In d e x184
Ind exA
AB S ( A n ti-lo ck Brake Sys tem ) . ..... .... ..... 1 2 4
Ac ces so rie s ..... .... ..... .... ..... .... .... ..... .... ..... 1 5 2
Ac ces so ry so cke t .... .... ..... .... .... ..... .... ..... .. 5 4
Air co nditio n in g s yste m .. .... .... ..... .... ..... 1 0 7
Air in tak e ... ..... .... ..... .... ..... .... .... ..... .... ..... 1 0 9
Air re -circu lation sys tem . .... .... ..... .... ..... 1 0 7
Air ven ts .... ..... .... ..... .... ..... .... .... ..... .... ..... 1 0 2
Airba gs .. .... ..... .... ..... .... ..... .... .... ..... .... . 3 9, 4 5
Alte rna tor .. ..... .... ..... .... ..... .... .... ..... .... ..... .. 5 8
An te nn a .... ..... .... ..... .... ..... .... .... ..... . 10 1 , 1 6 1
An tif ree ze .. ..... .... ..... .... ..... .... ..1 5 4, 15 5 , 1 7 1
An tif ree ze pro tectio n . ..... .... .... ..... . 15 4 , 1 5 8
An ti-kn o ck q ua lity o f f ue l ... .... ..... .... ..... 1 1 4
O ctan e n u mbe r ... .... ..... .... .... ..... .... ..... 1 7 5
An ti-th ef t pro te ctio n .. ..... .... .... ..... .... ... 9, 1 7
Aq ua planin g .. .... ..... .... ..... .... .... ..... .... ..... 1 2 8
As h trays .... ..... .... ..... .... ..... .... .... ..... .... ..... .. 5 3
Au to ligh t co n tro l .... .... ..... .... .... ..... .... ..... .. 7 3
Au to matic lock ing .. .... ..... .... .... ..... .... ..... .. 2 5
Au to matic un lo ckin g .. ..... .... .... ..... .... ..... .. 2 5
B
Batte ry .. ..... .... ..... .... .... ..... .... ... 1 11 , 1 5 9, 18 1
In terru ption o f p ow er s u pply .. ..... .... ... 2 3
Batte ry dis ch arge prote ctio n . .... ..... .... ... 7 7
Be f ore s tartin g-o f f . .... ..... .... ..... .... ..... .... ... 1 6
Be lt f orce limite rs ... .... ..... .... ..... .... ..... .... ... 4 0
Be lt ten s ion e rs ... .... .... ..... .... ..... .... ..... .... ... 4 1
Bo n n et .. ..... .... ..... .... .... ..... .... ..... .... ..... .... . 13 0
Brake as s is t ... ..... .... .... ..... .... ..... .... ..... .... . 12 3
Brake f lu id . .... ..... .... .... ..... .... ..... .... ..... .... . 17 1
Brake s
A BS ... ..... .... ..... .... .... ..... .... ..... .... ..... .... . 12 4
Brake ass is t .... .... .... ..... .... ..... .... ..... .... . 12 3
Brake f lu id . ..... .... .... ..... .... ..... .... ..... .... . 15 6
Brake lamps ... .... .... ..... .... ..... .... ..... .... . 14 9
Brake se rvo u n it . .... ..... .... ..... .... ..... .... . 11 0
Co n trol indica tor .... ..... .... ..... .... ..... .... ... 5 6
Fo o t brak e . ..... .... .... ..... .... ..... .... ..... .... . 12 3
Han d brak e .... .... .... ..... .... ..... .... ..... .... . 12 4
Bu lb re placem en t .. .... ..... .... ..... .... ..... .... . 14 6
Bu lbs . .... ..... .... ..... .... .... ..... .... ..... .... ..... .... . 14 6