Mercedes-Benz G-Class 2020 Operator's Manual page 122

120 Light and visibility
Fold the wiper arms back onto the wind‐
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shield.
Maintenance display
Remove protective film 1 from the mainte‐
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nance display on the tip of the newly instal‐
led wiper blades.
If the color of the maintenance display changes
from black to yellow, the wiper blades should be
replaced.
%
The duration until the color changes varies
depending on the usage conditions.
Changing the rear window wiper blade
& WARNING Risk of becoming trapped if
the windshield wipers are switched on
while wiper blades are being replaced
If the windshield wipers begin to move while
you are changing the wiper blades, you can
be trapped by the wiper arm.
Always switch off the windshield wipers
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and the ignition before changing the
wiper blades.
* NOTE Damage to the rear window
If the wiper arm falls onto the rear window
without the wiper blade attached, this may
damage the rear window.
Securely hold the wiper arm while
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changing the wiper blade or carefully
lower it onto the rear window.
Removing the wiper blade
Switch off the ignition ( page 129).
/
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Within approximately 15 seconds, turn the
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combination switch to position 1
( page 118).
/
The wiper arm moves into the change posi‐
tion.