Mercedes-Benz 2016 Metris Operator's Manual page 108

Windshield wipers
106
Rear doors
Rear window wipers (example: left rear door)
Fold wiper arm = away from the rear window.
X
Press both retaining clips ; together in the
X
direction of the arrow and swing wiper
blade : away from wiper arm =.
Pull wiper blade : up and out of the retainer
X
on wiper arm =.
Slide new wiper blade : into the retainer on
X
wiper arm =.
Press new wiper blade : onto wiper arm =
X
until you hear retaining clips ; engage.
Fold wiper arm = back onto the rear window.
X