Key
Checking the battery
X
Press the
&
or
%
button.
The battery is working properly if the bat-
tery charge indicator lamp lights up briefly.
Removing/installing the battery
You require a CR 2025 3 V cell battery.
X
Remove the emergency key element from
the key (
Y
page 299).
X
Press the emergency key element into the
opening in the key in the direction of
arrow
;
until cover
:
of the battery tray
opens. Be sure that your fingers are not
stopping the cover from opening.
X
Remove the cover of the battery tray.
X
Repeatedly tap the key against your palm
until battery
=
falls out of the key.
X
Insert the new battery with the positive
pole facing upwards. Use a lint-free cloth to
do so.
X
Insert the front tabs of the battery tray's
cover first and then press to close it.
X
Check the function of all key buttons on the
vehicle.
Auxiliary heating* remote control
One 6 V pin battery, type 2CR11108 is
required.
X
Prise apart the side arms of battery
cover
;
and pull off battery cover
;
.
X
Remove old battery
:
.
X
Insert the new battery. Observe the polarity
signs on the back of the remote control
when doing so.
X
Slide battery cover
;
back onto the
remote control.
X
Use the remote control to check the vehi-
cle's auxiliary heating functions.
Changing bulbs
Notes on changing bulbs
i
If you need assistance in changing the
bulbs, contact a qualified specialist work-
shop which has the necessary specialist
knowledge and tools to carry out the work
required. Mercedes-Benz recommends
that you use a Mercedes-Benz Service
Centre for this purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carried out at a qualified spe-
cialist workshop.
304
Changing bulbs
Pr
act
ical
ad
vice
* optional
212_AKB; 2; 4, en-GB
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