Wiper Blade: Inspection

Check and clean the rubber assembly wiper.

CAUTION:

Do not use organic solvent-based cleaner. Failure to do so can cause rubber part deterioration.
Do not use the cleaner that includes silicone oil. Failure to do so can cause chattering sound.

Clean rubber edge (a) using a soft cloth or a sponge dampened with washer fluid or mild synthetic detergent that is diluted two times or more. Wiping rubber lip (b) results in peeling of the black coating component, causing wiper chattering.

Courtesy of SUBARU OF AMERICA, INC.

Check that the rubber is firmly attached after cleaning.

Replace the rubber assembly wiper if rubber part hardening, deformation or damage is found.

Operate the washer system to check if a chattering sound or insufficient wiping occurs.
If a chattering sound or insufficient wiping occurs, perform the following procedures.
1. Make sure that the blade assembly wiper is not deformed and the movable part moves smoothly.
2. Remove oil film and dirt from the glass.
  CAUTION:
  - When powder-type glass cleaner is used, use after having been dissolved in water sufficiently. If it is used in less water, the glass surface may be damaged.
  - Clean the glass surface using a soft cloth or sponge with glass cleaner.
3. Operate the washer system again. If a chattering sound or insufficient wiping occurs, perform the procedures again.
If the rubber assembly wiper has not been replaced and the defective cannot be improved by performing step 1, replace the rubber assembly wiper with a new part.
Activate the washer system again, and if the defective cannot be improved, replace the blade assembly wiper with a new part.