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.
i 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:
Transfer case
This section is only valid for vehicles with 4-
wheel drive (4MATIC). Power is always
transmitted to both axles.
Performance tests may only be carried
out on a 2-axle dynamometer. The brake
...
Fast forward/rewind
With the display/selection window active,
press the or
button on the
remote control repeatedly until you reach
the desired position.
or
Press and hold the or
button
until the desired ...
Fuel filler flap
The fuel filler flap is unlocked or locked
automatically when you open or close the
vehicle with the SmartKey or using KEYLESSGO.
The position of the fuel filler cap is displayed
in the instrum ...
