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66 66
Opening and closing
R R eq equir uirements
ements
You require a CR 2032 3 V cell battery.
R
Mercedes-Benz recommends that you have the
battery replaced at a quali ed specialist work-
shop.
Remove the emergency key (
page 65).
#
/
Press release button
2
down fully and slide
#
cover
1
in the direction of the arrow.
Li up cover
1
in the direction of the arrow
#
and remove it.
Remove battery compartment
3
#
out the discharged battery.
Insert the new battery into battery compart-
#
ment 3. Observe the positive pole marking in
the battery compartment and on the battery
when doing this.
Push in battery compartment 3.
#
Re-attach cover
1
#
engages.
Pr Problems wit
oblems with t h the Smar
he SmartKey
Y Y ou can no long
ou can no longer loc
er lock or unloc
Possible causes:
The SmartKey battery is weak or discharged.
R
Check the battery using the indicator lamp
#
(
page 63).
/
Replace the SmartKey battery, if necessary
#
(
page 65).
/
Use the replacement key.
#
Use the emergency key to lock or unlock
#
(
page 69).
/
and take
Have the SmartKey checked at a quali ed spe-
#
cialist workshop.
There is int
Ther
sour
source ce
Possible causes if the function of the SmartKey is
impaired:
high voltage power lines
R
and push it closed until it
mobile phones
R
electronic devices (notebooks, tablets)
R
shielding due to metallic objects or induction
R
tKey, tr
, troubleshoo
oubleshooting
ting
loops for electrical gate systems or automatic
barriers
k or unlock t k the v
he vehicle
ehicle
Make sure that there is su cient distance
#
between the SmartKey and the potential
source of interference.
Y Y ou hav
ou have los
Have the SmartKey deactivated at a quali ed
#
specialist workshop.
If necessary, have the mechanical lock
#
replaced as well.
e is interf
erfer erence fr
ence from a pow
om a power erful r
ful radio signal
adio signal
e lost a Smar
t a SmartKey.
tKey.
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