Replacing; Changing The Battery; Checking The Battery - Mercedes-Benz Coupe Operator's Manual

SmartKey
64
Keep batteries out of the reach of children.
Seek medical attention immediately if a
battery is swallowed.
G
WARNING
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. Observe
government disposal guidelines. California
residents, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm.

Checking the battery

Press the & or % button.
X
The SmartKey battery is working properly if
battery check lamp : lights up briefly.
If battery check lamp : does not light up
briefly during the test, the SmartKey battery
is discharged.

Changing the battery (

X
i
The battery can be obtained from any
authorized Mercedes-Benz Center.
i
If the SmartKey battery is checked within
the signal range of the vehicle, pressing the
& or % button locks or unlocks the
vehicle.
Replacing the battery
Take the mechanical key out of the
X
SmartKey ( page 63).
Y
You require a CR 2025 3 V cell battery.
page 64)
Y
Press mechanical key ; into the opening
X
in the SmartKey in the direction of the
arrow until battery tray cover : opens. Do
not hold the cover closed while doing so.
Remove the cover of the battery tray.
X
Repeatedly tap the SmartKey against your
X
palm until battery = falls out.
Insert the new battery with the positive
X
terminal facing upwards. Use a lint-free
cloth to do so.
Insert the front tabs of the battery tray's
X
cover first, and then press to close it.
Check the function of all SmartKey buttons
X
on the vehicle.