Mercedes-Benz 2008 M-Class Operator's Manual page 478

Removing
Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO*:
Make sure the vehicle's on-board
electronics have status 0
( page 42).
!
Do not pull on the wiper blade insert. It
could tear.
Fold wiper arm 1 away from the rear
window until it engages.
1 Wiper arm
2 Wiper blade
Turn wiper blade 2 to form a right
angle with wiper arm 1 as shown.
Hold wiper arm 1 and disengage wip-
er blade 2 by carefully sliding it in
direction of arrow.
Remove wiper blade 2.
Installing
1 Wiper arm
2 Wiper blade
Insert wiper blade 2 into wiper
arm 1.
Practical hints
Replacing wiper blades
Hold wiper arm 1 and engage wiper
blade 2 by pushing it in direction of
arrow until it locks into place.
Check whether the wiper blade is
securely fastened.
Fold the wiper arm to rest on the rear
window.
Make sure to hold on to the wiper when
folding the wiper arm back.
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