Volvo 240 Owner's Manual page 115

Volvo 1990 240 Model
pg. 86 Replacing wiper blades, Washing
Replacing wiper blades
Washing
The car should be washed at regular intervals since dirt, dust, insects and tar spots adhere to the paint
and may cause damage.
When washing the car, do not expose it to direct sunlight. Use lukewarm water to soften the dirt before
you wash with a sponge, and plenty of water, to avoid scratching.
A detergent can be used to facilitate the softening of dirt and oil. Special car washing detergent or
household detergent can be used. A suitable mixture is about 2.5 fl. oz. (8.5 cl) of detergent to 2.6 US
gal. =10 liters of warm water. After washing with a detergent the car should be well rinsed with clean
water.
A water soluble grease solvent may be used in cases of sticky dirt. However, use a washplace equipped
with a drainage separator.
Dry the car with a clean chamois and remember to clean the drain holes in the doors and rocker panels.
Tar spots can be removed with kerosene or tar remover after the car has been washed.
Electrically operated antenna (optional) should be dried and lightly lubricated with an oil dampened
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Lift the wiper arm off the windshield and hold blade at right angles to arm. Pinch
the end of the plastic clip located at the back of the arm.
Slide the wiper blade along the arm to release it from the hook.
Install new blade in reverse order to removing and make sure that it is properly
attached to the wiper arm.
For reasons of safety, you should change the windshield wiper blades as soon as
they start to leave marks on the windshield or fail to wipe efficiently and cleanly.