CITROEN 2 CV4 1975 Owner's Manual page 26

MAINTENANCE
Maintenance
Bodywork
The bodywork should be looked after regularly, especially in
Winter. This maintenance should not only concentrate on the
paintwork and the metal embellishers but should take in the
underside of the car as well: advice in this connection can be
obtained from any Citroën dealer.
Never wipe the car when dry since this will scratch the finish.
Petrol, trichlorethylene and alcohol harm paint and transparent
plastic such as the sidelamp covers. Do not use strong detergent
solutions either.
Cleaning the Bodywork
Frequent washing is necessary to keep the paintwork in good
condition but it is nevertheless essential that certain precautions be
observed; here are some reminders:
Never wash the car in full sunlight nor during frost. If the car has
been exposed to the sun or if the bonnet is still warm after a
journey, wait until the surfaces have cooled down.
The body should first be rinsed with copious amounts of water
applied either with a soft sponge, exerting no pressure and rinsing
the sponge often, or with a low pressure jet. If a car shampoo is
used, risne afterwards with plenty of water.
Wipe the car dry with a clean chamois leather which is rinsed and
wrung out frequently, ensure that no spots of water are left on the
paintwork.