Mazda 3 2018 Owner's Manual page 458

Maintenance and Care
Owner Maintenance
3. Tilt the blade assembly and remove it
from the arm.
CAUTION
To prevent damage to the windshield
let the wiper arm down easily, do not let
it slap down on the windshield.
4. Pull down the blade rubber and slide it
out of blade holder.
5. Remove the metal stiffeners from each
blade rubber and install them in the
new blade.
6-30
Mazda3_8GE4-EA-17F_Edition1
CAUTION
Do not bend or discard the stiffeners.
You need to use them again.
If the metal stiffeners are switched,
the blade's wiping efficiency could be
reduced.
So do not use the driver's side metal
stiffeners on the passenger's side, or
vice versa.
Be sure to reinstall the metal
stiffeners in the new blade rubber so
that the curve is the same as it was in
the old blade rubber.
6. Carefully insert the new blade rubber.
Then install the blade assembly in the
reverse order of removal.
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