Replacing the windscreen wiper blades
WARNING Risk of becoming trapped if the windscreen wipers are switched on while wiper blades are being replaced
If the windscreen wipers begin to move while you are changing the wiper blades, you can be trapped by the wiper arm.
Always switch off the windscreen wipers and ignition before changing the wiper blades.
WARNING Risk of injury from using the windscreen wipers while the engine bonnet is open
When the engine bonnet is open, and the windscreen wipers are set in motion, you can be trapped by the wiper linkage.
Always switch off the windscreen wipers and ignition before opening the engine bonnet.
If the wiper blades are worn out, they will not wipe the windscreen properly. Replace the wiper blades twice a year, preferably in spring and autumn.
Fold wiper arm 
away from the windscreen.
away from the windscreen. Hold wiper arm and turn the wiper blade away from wiper arm in the direction of the arrow as far as it will go.
and turn the wiper blade away from wiper arm in the direction of the arrow as far as it will go. Slide catch 
upwards in the direction of the arrow until it engages.
upwards in the direction of the arrow until it engages. Fold back the wiper blade onto the wiper arm.
Remove the wiper blade 
from wiper arm.
from wiper arm. Insert new washer blade in the holder on wiper arm .
in the holder on wiper arm . When doing so, take into account the different lengths of the wiper blades:
Driver's side: long wiper blade
Front passenger side: short wiper blade
Slide catch downwards until it engages.
downwards until it engages. Fold wiper arm back onto the windscreen.
back onto the windscreen.