Mercedes-Benz 2009 M-Class Operator's Manual page 366

Practical hints
Replacing wiper blades
Do not allow a wiper arm to contact the
windshield glass or the rear window
without a wiper blade inserted.
Mercedes-Benz recommends that you have
this work carried out at an authorized
Mercedes-Benz Center.
X
Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO:
X
Make sure the vehicle's on-board
electronics have status 0 ( Y
Removing wiper blades
Front wiper blades
! Do not pull on the wiper blade inserts.
They could tear.
X
Fold the wiper arms forward until they
engage.
364
Wiper blade
1
page 95).
Tab
2
Wiper arm
3
X
Press tabs
X
Tilt wiper blade
3.
X
Take off wiper blade
arrow.
Rear wiper blade
! Do not pull on the wiper blade insert. It
could tear.
together.
2
away from wiper arm
1
in direction of
1
Wiper arm
1
Wiper blade
2
X
Fold wiper arm away from the rear
1
window until it engages.
X
Turn wiper blade as far as it will go.
2
X
Hold wiper arm and disengage wiper
1
blade by carefully sliding it in direction
2
of arrow.
X
Remove wiper blade 2.