Mercedes-Benz SLK-Class 2008 Owners Manual - Manual (Page 400)

399
Practical hints
Replacing SmartKey batteries
3 Batteries
4 Contact springs
̈ Pull out batteries 3.
̈ Using a lint-free cloth, insert new
batteries
3 under contact springs 4
with the positive terminal (+) side
facing up.
̈ Return battery compartment 2
( ୴ page 398) into the housing until it
locks into place.
̈ Slide the mechanical key back into the
SmartKey.
̈ Check the operation of the SmartKey.