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:
PRE-SAFE® Brake
PRE-SAFE® Brake is only available in vehicles
with DISTRONIC PLUS.
Observe the "Important safety
notes"
section.
PRE-SAFE® Brake can help you to minimize
the risk of a frontal col ...
Stowage compartments in the rear
Stowage compartment in the rear center
console
► To open: briefly press the stowage
compartment marking.
Depending on the vehicle's equipment,
there may be open stowage spaces above
and ...
Manual interior lighting control
To switch the front interior lighting on/ off: press the
button.
To switch the rear interior lighting on/ off: press the
button.
To switch the reading lamps on/off: press the
button.
...
