Changing the battery
You require a CR 2025 3 V cell battery.
•► Take the mechanical key out of the SmartKey

•► Press mechanical key 2 into the opening in the SmartKey in the direction of the arrow until battery tray cover 1 opens.
When doing so, do not hold cover 1 shut.
•► Remove battery tray cover 1.

•► Repeatedly tap the SmartKey against your palm until battery 3 falls out.
•► Insert the new battery with the positive terminal facing upwards. Use a lint-free cloth to do so.
•► Make sure that the surface of the battery is free from lint, grease and all other forms of contamination.
•► Insert the front tabs of battery tray cover 1 and then press to close it.
•► Insert the mechanical key into the SmartKey.
•► Check the function of all SmartKey buttons on the vehicle.
See also:
Cross bar
Points to observe before use
The maximum roof load that can be used with
additional accessories decreases by the dead
weight of the crossbars (13.7 lbs/6.2 kg).
Note that installing the crossb ...
2011 Mercedes-Benz S-Class Review by Scott Burgess
Luxury comes with nuances.
Little things denote one fine ride: The look of the thread on the dashboard
stitching, the smell of the leather, the crystal-like headlamps. Even the sound
of the trun ...
Cleaning instructions
Do not touch the COMAND display. The
display has a very sensitive high-gloss
surface; there is a risk of scratching. If you
have to clean the screen, however, use a
mild cleaning agent and a ...
