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Replacing SmartKey batteries
311
Replacing SmartKey batteries
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 authorized Mer-
cedes-Benz Center.
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Warning!
Batteries contain poisonous and corrosive
substances. Therefore, keep the batteries
out of reach of children.
If a battery is swallowed, seek medical help
immediately.
G
Warning
SmartKey batteries contain Perchlorate
material, which may require special han-
dling and regard for the environment.
Check with your local government’s dis-
posal guidelines. California residents, see
http://www.dtsc.ca.gov/Hazardous-
Waste /Perchlorate/index.cfm.
Batteries contain materials that can harm the
environment if disposed of improperly. Recy-
cling of batteries is the preferred method of
disposal. Many states require sellers of bat-
teries to accept old batteries for recycling.
When inserting the batteries, make sure they
are clean and free of lint.
When replacing batteries, always replace
both batteries.
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The required replacement batteries are
available at any authorized Mercedes-Benz
Center.
Replacement batteries: Lithium, type
CR 2025 or equivalent.
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Remove the mechanical key from the
SmartKey (Y page 308).
1
Mechanical key
2
Battery compartment
X
Insert mechanical key 1 into opening.
X
Press mechanical key 1 in direction of
arrow.
Battery compartment 2 is unlatched.
X
Pull battery compartment 2 out of the
SmartKey housing.
3
Batteries
4
Contact springs
X
Pull out batteries 3.
X
Insert new batteries 3 under contact
springs 4 with the positive terminal (+)
side facing up.
X
Return battery compartment 2 into
SmartKey housing until it locks into place.
Practical hints
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