Checking the battery
X
Press the
&
or
%
button.
The battery is working properly if battery
check lamp
:
lights up briefly.
The battery is discharged if battery check
lamp
:
does not light up briefly.
X
Change the battery (
Y
page 77).
If the SmartKey battery is checked within the
signal reception range of the vehicle, pressing
the
&
or
%
button:
R
locks or
R
unlocks the vehicle
i
You can get a battery at any qualified spe-
cialist workshop.
Replacing the battery
You require a CR 2025 3 V cell battery.
X
Take the mechanical key out of the Smart-
Key (
Y
page 76).
X
Press mechanical key
;
into the SmartKey
opening in the direction of the arrow until
battery compartment cover
:
opens. Do
not hold battery compartment cover
:
closed while doing so.
X
Remove battery compartment cover
:
.
X
Repeatedly tap the SmartKey against your
palm until battery
=
falls out.
X
Insert the new battery with the positive ter-
minal facing upwards. Use a lint-free cloth
to do so.
X
Make sure that the surface of the battery is
free of lint, grease and other contaminants.
X
Insert the front tabs of battery compartment
cover
:
into the housing and then press to
close it.
X
Insert mechanical key
;
into the SmartKey
(
Y
page 76).
X
Check the function of all SmartKey buttons
on the vehicle.
SmartKey
77
Op
ening
and
closing
Z
Summary of Contents for SL 450 2019
Page 330: ...328...
