Mercedes-Benz SLK-Class 2013 Owners Manual - Manual (Page 76)

X Press mechanical key ; into the 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.
X Remove battery compartment cover :.
X Repeatedly tap the SmartKey against your
palm until battery = falls out.
X Insert the new battery with the positive
terminal facing upwards. Use a lint-free
cloth to do so.
X Make sure that the surface of the battery is
free from lint, grease and all other forms of
contamination.
X
Insert the front tabs of battery
compartment cover : into the housing
and then press to close it.
X Insert mechanical key ; into the
SmartKey.
X
Check the function of all SmartKey buttons
on the vehicle.
74
SmartKey
Opening/closing