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:
Setting and storing the parking position
You can position the front-passenger side
exterior mirror in such a way that you can see
the rear wheel on that side as soon as you
engage reverse gear. You can store this
position.
•► ...
Important safety notes
Do not leave the SmartKey in the trunk. You
could otherwise lock yourself out.
WARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey w ...
General notes
WARNING
All categories of messages contain important information which should be taken
note of and,
where a malfunction is indicated, addressed as soon as possible at an authorized
Mercedes-B ...