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