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:
Winter tires
At temperatures below 45 °F (+7
°C), use
winter tires or all-season tires. Both types of
tire are identified by the M+S marking.
Only winter tires bearing the
snowflake
symbol in addition ...
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
...
A unique combination of driver-assistance systems
The 2011 CL-Class further enforces its position as an automotive masterwork
and a technology platform with the most advanced assistance and protection
systems. These highly perceptive assistants c ...