Correct answer
Replace the deteriorated wiper blades.
Replace the deteriorated wiper blades to restore effective windscreen clearing. Also check installation and system condition according to the manufacturer. Do not wait for the support to break or for a fixed interval to expire when deterioration is already evident. Periodic checks and replacement recommendations do not justify continuing to use a blade that prevents clear vision.
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Replace the deteriorated wiper blades.
Always wait until six months of use have elapsed.
Replace them only when the rubber support breaks.
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