Volvo 2008 V70 Owner's Manual page 222

Replacing the windshield wiper blades
With the wipers in the service position, fold out the wiper arm from the windshield. Press the button on the wiper
blade attachment and pull the wiper blade straight out, parallel with the wiper arm.
Slide in the new wiper blade until it clicks into place.
Check that the blade is securely in place.
Cleaning
Keeping the windshield and wiper blades clean helps improve visibility and prolongs the service life of the wiper
blades. Clean the wiper blades with a stiff-bristle brush and lukewarm soap solution or car washing detergent.
236
06 Maintenance and specifications
Wiper blades and washer fluid
Replacing the tailgate wiper blade