Vauxhall Astra Owner's Manual page 272

Clean seat belts with lukewarm water
or interior cleaner.
Caution
Close Velcro fasteners as open
Velcro fasteners on clothing could
damage seat upholstery.
The same applies to clothing with
sharp-edged objects, like zips or
belts or studded jeans.
Plastic and rubber parts
Plastic and rubber parts can be
cleaned with the same cleaner as
used to clean the body. Use interior
cleaner if necessary. Do not use any
other agent. Avoid solvents and petrol
in particular. Do not use high-
pressure jet cleaners.
Vehicle care 271