1. Turn off the engine and make sure the wiper arms are in the parked position.
2. Locate the release tab on the wiper arm. It is usually a small, black or gray plastic piece located near the base of the wiper blade.
3. Press the release tab and lift the wiper arm up until it is vertical.
4. Remove the old wiper blade by sliding it off the wiper arm.
5. Install the new wiper blade by sliding it onto the wiper arm.
6. Press down on the wiper arm until it clicks into place.
7. Repeat steps 3-6 for the other wiper arm.
Here are some additional tips for changing wiper blades:
* Make sure to purchase the correct size wiper blades for your vehicle.
* If the wiper blades are chattering or skipping, you may need to adjust the tension on the wiper arms.
* It is a good idea to change your wiper blades every 6-12 months, or more often if you live in a climate with harsh weather conditions.
By following these steps, you can easily change the wiper blades on your Volvo v70.