Opel GT Owner's Manual page 164

164 Self-help, vehicle care
Locks
The locks are lubrica ted with a high-grade
lock cy lind er grease at the factory. O pel
Loc k Cy lind er Grease prevents the locks
from freezing up. Only use de-icing agents
in emergencies, a s they hav e a degreasing
effect and will im pair the function of the
locks. After using a de-icing agent, have
the lock s re-greased by a workshop.
Eng ine compar tment
Areas of the engine compartment that are
painted in the same colour as the vehic le
must be looked after lik e any other p ainted
surface.
It is adv isable to wash the engine
compartment before and after winter and
preserve it with wax. Cover alternator and
brake/clutch fluid reserv oir with plastic
sheets before washing the engine.
When washing the engine with a steam-jet
cleaner, do not d irect the steam-jet a t
components of the Anti-lock Brake System
(ABS), a ir conditioning system, climate
control sy stem or the b elt drive and its
components.
Protective wax that has been ap plied is
also removed during the engine wash. For
this reason, have the engine, brak e system
components in the engine compartment,
axle com ponents with steering, body parts
and cavities thoroughly preserved by a
work shop using protective wax .
An engine w ash ca n be p erformed in the
spring in order to remov e dirt that has
adhered to the engine comp artment,
whic h may also have a high salt content.
Check protectiv e w ax la yer and ma ke good
if necessary.
Do not use high-pressure jet clea ners.
Underbod y
Y our v ehicle ha s a durable protective
coating in the wheel arches (includ ing the
longitudinal mem bers), which provides
permanent protection a nd need s no
spec ia l maintenance.
O n vehicles whic h are wa shed frequently
in automatic ca r washes with underbody
washing facility, the protective coating
ma y be impaired by dirt-dissolving
add itiv es, so check the underb od y after
washing and have it wax ed if necessary.
Before the sta rt of the cold weather season,
check the c oa ting and, if necessary, have it
restored to perfect condition.
C aution – com mercially available bitumen/
rubber m aterials can damage the coating .
We recommend that you have underbody
work carried 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 end of the cold weather
season to remov e any dirt adhering to the
underbody since this may also contain salt.
C heck p rotective wax c oa ting and , if
nec essary , have it restored to perfec t
condition.