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:
Important safety notes
ATTENTION ASSIST helps you during long,
monotonous journeys such as on freeways and interstate highways. It is active in
the
range between 50 mph (80 km/h) and
112 mph (180 km/h).
If ATTENTIO ...
Wake up: ATTENTION ASSIST issues warning on detecting drowsiness
Studies have shown that around a quarter of all serious motorway accidents
are caused by drowsy drivers, making this factor an even bigger cause of
accidents than drink-driving. With ATTENTION ASS ...
Majestic drive systems: new V6 and V8 engines
The ultra-modern engine line-up in all GL-Class models provides superlative
drive comfort and compelling performance coupled with superior fuel consumption
figures compared with other vehicles in ...
