Windscreen wiper system

Troubleshooting: wiper blade insert

~1min read
Wiping pattern Cause Remedy
Streaks. Wiper blade insert dirty.

Wiper lip frayed, rubber torn or worn.

Wiper blade insert aged, surface cracked.

  • Clean the wiper blade insert with a hard nylon brush and a detergent solution or denatured alcohol.
  • Replace the wiper blade insert.
  • Replace the wiper blade insert.
Water remaining in the wiped area immediately beads up. Windshield contaminated with paint polish or oil. Clean the windshield with a clean cloth and a grease, oil and silicone remover.
Wiper blade wipes well on one side and poorly on the other, chatters. Wiper blade insert deformed on one side, no longer "tilts".

Wiper arm twisted, blade stands at an angle on the glass.

  • Install a new wiper blade insert.
  • Carefully twist the wiper arm until it is in the correct, perpendicular position.
Areas not wiped. Wiper blade insert torn out of the holder.

Wiper blade no longer contacts the glass evenly because spring rails or sheet metal are bent.

Contact pressure from the wiper arm too low.

  • Carefully insert the wiper blade insert into the holder.
  • Replace the wiper blade. This fault occurs mainly when a replacement blade has been fitted incorrectly.
  • Lightly oil the wiper arm joints and spring, or install a new arm.

Test yourself

A quick Fiat Bravo quiz: every answer comes with an explanation and a link to the manual page.