Mercedes-Benz SLK Operator's Manual page 76

SmartKey
74
Insert the front tabs of battery
X
compartment cover : into the housing
first and then press to close it.
Insert mechanical key ; into the
X
SmartKey.
Check the function of all SmartKey buttons
X
on the vehicle.
I n f o r m a t i o n P r o v i d e d b y :