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Mercedes-Benz recommends that you have the
battery replaced at a qualified specialist work‐
shop.
Remove the emergency key (
#
Problems with the key
Problem
You can no longer lock or unlock the
vehicle.
Press release button
#
cover
1
Fold out cover
#
page 74).
arrow and remove.
→
Remove battery compartment
#
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 bat‐
tery when doing this.
Push in battery compartment 3.
#
Re-attach cover
#
engages.
Possible causes/consequences and
Possible causes:
The key battery is weak or discharged.
R
There is interference from a powerful radio signal source.
R
The key is faulty.
R
2
down fully and slide
in the direction of the arrow.
1
in the direction of the
3
and take
1
and push it until it
M M
Solutions
Opening and closing
75
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