345 Practical hints
Replacing SmartKey batteries
SmartKey
Remove the mechanical key out of the
SmartKey (
page 342).
1Mechanical key
2Battery compartment
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Insert the mechanical key1in side
opening and push gray slide.
The battery compartment is unlatched.
Pull battery compartment2 out of the
housing in direction of arrow.
Remove the batteries.3Battery
4Contact spring
Using a lint-free cloth, insert new
batteries3 under the contact
spring4 with the plus (+) side facing
up.
Return battery compartment into hous-
ing until it locks into place.
Slide mechanical key1 back into the
SmartKey.
Check the operation of the SmartKey.
iWhen inserting the batteries, make
sure they are clean and free of lint.iWhen replacing batteries, always re-
place both batteries. The required re-
placement batteries are available at
any Mercedes-Benz Center.
