Mercedes-Benz E-Class Saloon Owner's Manual page 101

Key
98
Press emergency key element ; into the
X
opening in the key in the direction of the
arrow until battery compartment cover :
opens. When doing so, do not hold battery
compartment cover : shut.
Remove battery compartment cover :.
X
Repeatedly tap the key against your palm
X
until battery = falls out.
Insert the new battery with the positive ter-
X
minal facing upwards. Use a lint-free cloth
to do so.
Make sure that the surface of the battery is
X
free of lint, grease and other contamina-
tion.
Insert the front tabs of battery compart-
X
ment cover : into the housing and then
press to close it.
Insert emergency key element ; into the
X
key.
Check the function of all key buttons on the
X
vehicle.