Mercedes-Benz Metris Operating Instructions Manual page 76

Key
74
X
Push mechanical key ; into the opening in
the key in the direction of the arrow until
battery compartment cover : opens. When
doing so, do not hold battery compartment
cover : shut.
X
Remove battery compartment cover :.
Problems with the key
Problem
It is no longer possible
to lock the vehicle using
the SmartKey.
The turn signals do not
flash when the vehicle
is locked.
X
Tap the key against the palm of your hand
so that battery = falls out of the battery
compartment.
X
Insert the new battery into the battery tray
with the positive pole facing upwards. Use a
lint-free cloth to do so.
X
Install battery compartment cover : to the
key casing with the front lugs first and push
closed.
X
Slide mechanical key ; back into the key
Y
(
X
Check the function of all key buttons on the
vehicle.
Possible causes/consequences and M Solutions
The doors are not closed properly.
X
Close the doors properly and lock the vehicle again.
The central locking system has malfunctioned.
X
Lock the vehicle using the mechanical key (
down the locking knob and then close the doors.
X
Have the central locking system checked as soon as possible at a
qualified specialist workshop.
page 73).
Y
page 73) or press