1. Pull the drivers side wiper blade off the Mercedes windshield and position it vertically. A spring inside the wiper arm holds the arm in place.
2. Grab the wiper arm with one hand and middle of the wiper blade with the other.
3. Pull the wiper blade off the arm. The blade is pressed onto the wiper arm.
4. Hold the wiper arm with one hand and press the new wiper blade onto the wiper arm.
5. Place the wiper blade against the Mercedes windshield.
6. Repeat the process on the passenger side wiper blade.
7. Turn the Mercedes on and then turn off the wiper blades. They will seat below the cowl.