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:
PRE-SAFE® (preventative occupant
protection)
WARNING
The PRE-SAFE® system reduces the impact of
an accident on vehicle occupants, as long as
their seat belts have been fastened correctly.
Although your vehicle is equipped with a PRESAF ...
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-Be ...
The first 1000 miles (1500 km)
The more you look after the engine when it is
new, the more satisfied you will be with its
performance in the future.
• Drive at varying vehicle speeds and engine
speeds for the first 1000 mile ...