Mercedes-Benz 2010 M-Class Operator's Manual page 310

Unlocking/locking manually
308
A minimum height clearance of 7.2 ft
(2.20 m) is required to open the tailgate.
X
Remove cover ; from the trim on the
tailgate.
X
Push emergency release lever : all the
way to the left.
! The tailgate swings open upwards
automatically. Always make sure there is
sufficient overhead clearance.
X
Open the tailgate.
i
If the vehicle has previously been locked
from the outside using the SmartKey or
KEYLESS-GO, opening the tailgate from the
inside using the emergency release lever
will trigger the anti-theft alarm system.
To cancel the alarm, do one of the
following:
Insert the SmartKey into the starter
R
switch.
Press button % or & on the
R
SmartKey.
In vehicles with KEYLESS-GO:
Pull an outside door handle.
R
The SmartKey must be within 3 ft (1 m)
of the vehicle.
Press the KEYLESS-GO start/stop
R
button.
The SmartKey must be inside the vehicle.
X
Reinstall cover ;.
Fuel filler flap
G
Warning!
HYBRID vehicles: It is imperative that you read
the HYBRID Supplemental Operating
Instructions included in your vehicle literature
portfolio. You may otherwise not recognize
potential danger.
G
Warning!
Avoid contact with the vehicle walls as they
may contain sharp edges. Otherwise, you
could injure yourself while releasing the fuel
filler flap.
In case the central locking system does not
release the fuel filler flap, you can open it
manually.
The fuel filler flap release is located on the
passenger side in the cargo compartment
behind the cover.
X
Open the tailgate (
X
Open the cover on the passenger-side trim
panel ( Y page 316).
X
Pull yellow fuel filler flap release : in
direction of arrow.
The fuel filler flap is unlocked.
X
Open the fuel filler flap (
X
Close the cover.
X
Close the tailgate.
Y
page 75).
Y page 210).