Wiper blade

What it does

Clears rain and dirt from the windscreen.

Signs it needs replacing

• Streaks or missed patches
• Squeaking or juddering
• Rubber cracked or torn

What to tell the shop

• Vehicle make, model and model year
• Engine size, and whether it is manual or automatic
• The number printed on the old part, or a photo of it
• Whether you want genuine, OEM or a local replacement