Replacing Smartkey Batteries - Mercedes-Benz S 450 4MATIC Operator's Manual

Practical hints

Replacing SmartKey batteries

If the batteries in the SmartKey/SmartKey
with KEYLESS-GO* are discharged, the ve-
hicle can no longer be locked or unlocked.
It is recommended to have the batteries re-
placed at an authorized Mercedes-Benz
Center.
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.
Warning!
SmartKey batteries contain Perchlorate ma-
terial, which may require special handling
and regard for the environment. Check with
your local government's disposal guidelines.
California residents, see
http://www.dtsc.ca.gov/HazardousWaste
/Perchlorate/index.cfm.
712
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.
i
When inserting the batteries, make sure
G
they are clean and free of lint.
i
When changing batteries, always replace
both batteries.
The required replacement batteries are available
at any authorized Mercedes-Benz Center.
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key out of the
G
SmartKey/SmartKey with
KEYLESS-GO* ( page 708).
1 Mechanical key
2 Battery compartment
Insert mechanical key 1 into opening.
Press mechanical key 1 in direction of
arrow.
The battery compartment is unlatched.
Pull battery compartment 2 out of the
housing.