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Practical hints
Replacing SmartKey batteries
̄ Replacing SmartKey batteries
If the batteries in the SmartKey or the
SmartKey with KEYLESS-GO* are dis-
charged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an autho-
rized Mercedes-Benz Center.
Batteries contain materials that can harm
the environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.
SmartKey
Replacement batteries: Lithium, type
CR 2025 or equivalent.
̈ Remove mechanical key 1
(
୴ page 385).
1 Mechanical key
2 Slide
3 Battery compartment
̈ Insert mechanical key 1 in direction
of arrow into side opening.
̈ Using mechanical key 1, push gray
slide 2 to unlatch battery compart-
ment 3.
̈ Pull battery compartment 3 out of the
housing in direction of arrow.
̈ Remove the batteries in direction of ar-
row.
4 Battery
5 Contact spring
̈ Using a lint-free cloth, insert new bat-
teries 4 under contact spring 5 with
the positive terminal (+) facing up.
̈ Return battery compartment 3 into
housing until it locks into place.
̈ Slide mechanical key 1 back into the
SmartKey.
̈ Check the operation of the SmartKey.
Warning! G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.
i
When inserting batteries, make sure
they are clean and free of lint.