Common problem it seems.
The squeak is often not the wipers themselves (even though it sounds like it is) the cause is the mechanism.
Fix:
Remove the plastic scuttle under the window with bonnet raised.
Locate and grease all moving parts of the wiper mechanism.
WD40 will last about a year or so. Grease will last a LOT longer.
Disconnect battery during greasing to avoid nasty accidents. (Y)
Andrew
The squeak is often not the wipers themselves (even though it sounds like it is) the cause is the mechanism.
Fix:
Remove the plastic scuttle under the window with bonnet raised.
Locate and grease all moving parts of the wiper mechanism.
WD40 will last about a year or so. Grease will last a LOT longer.
Disconnect battery during greasing to avoid nasty accidents. (Y)
Andrew