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Practical hints
Unlocking/locking in an emergency
Changing batteries in the SmartKey/
SmartKey with KEYLESS-GO*
If the batteries in the SmartKey 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
1 Mechanical key
2 Battery compartment
Replacement batteries: Lithium, type
CR 2025 or equivalent.
̈ Remove mechanical key 1
(
୴ page 353).
̈ Insert the mechanical key in side open-
ing and push gray slide.
The battery compartment is unlatched.
̈ Pull the battery compartment out of the
SmartKey housing in direction of ar-
row.
̈ Remove the batteries.
3 Battery
4 Contact spring
Warning! G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.
i
When changing batteries, always re-
place both batteries.
The required replacement batteries are
available at any Mercedes-Benz
Center.