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:
Clearing the shift range restriction
- Pull and hold the right-hand steering wheel
paddle shifter until D is shown again in the
multifunction display.
The automatic transmission shifts from the
current shift range directly to D.
...
Important safety notes
WARNING
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature). This
could ...
High-beam spot lamp (vehicles with LED-daytime running lamps)/infrared light
(Night View Assist Plus)
Due to their location, have the bulbs in the
left-hand headlamp changed at a qualified
specialist workshop, e.g. an authorized
Mercedes-Benz Center.
Switch off the lights.
Open the hood.
...
