Vauxhall VECTRA Owner's Manual page 272

When washing the engine w ith a steam jet,
do not direct the jet at components of the
Anti-lock Brake Sy stem (ABS), the air
conditioning system 3, the Electronic
Clim ate C ontrol system 3, the auxiliary
heater 3 or the belt drive or its
components.
Engine washing also rem ov es subsequently
applied protec tiv e wa x. Therefore after
washing, have a workshop protect the
engine, parts of the b ra king sy stem in the
engine bay, axle elements with steering ,
body elements and cav ities, thoroughly
with protective wax .
An engine wash can be performed in the
spring in ord er to remove dirt that has
adhered to the engine compartment,
which may also ha ve a high sa lt content.
Check p rotective wax layer and make good
if necessary.
Do not use high-pressure jet clea ners in the
engine compartment.
Underbody
Your vehicle has a factory-app lied PVC
undercoating in the wheel arches
(including the longitudinal mem bers) which
prov ides permanent protec tion and needs
no special maintenance.
The surfaces of the vehicle underb od y not
covered by PVC are provided a durable
protective wax coating in critic al areas.
On vehicles which are washed frequently in
autom atic car washes with underbody
washing facility, the protective wax
coating may b e impaired by d irt-dissolv ing
additives, so check the underbody after
washing and ha ve it waxed if necessary .
Before the start of the cold weather season,
check the PVC c oa ting a nd protective wax
coating and, if necessary , have them
restored to perfect condition.
Self-help, vehicle care
C aution - c om mercially available bitumen/
rubber materials can damage the PVC
coating. We recom mend that y ou ha ve
underbody w ork carried out by a work shop
which knows the p rescrib ed materials and
has ex perienc e 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.
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