Checking the battery
Press the 
or
button.
The battery is working properly if battery
check lamp 1 lights up briefly
If battery check lamp 1 does not light up briefly during the test, the battery is discharged.
Changing the battery.
You can obtain the battery at a qualified
specialist workshop.
If the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the or
button locks or
unlocks the vehicle.
See also:
Displaying the range and current fuel
consumption
Press the or
button on the
steering wheel to select the Trip menu.
Press the or
button to select
Range.
The current fuel consumption and the
approximate range are displayed.
The app ...
Resetting triggered NECK-PRO head
restraints
WARNING
For safety reasons, have the NECK-PRO head
restraints checked at an authorized
Mercedes-Benz Center after a rear-end
collision.
WARNING
When pushing back the NECK-PRO head
r ...
Restricting the shift range
X Press the selector lever to the left towards D–.
The automatic transmission shifts down one gear and restricts the shift range
to the relevant gear.
If the engine exceeds the maximum engine s ...