Mercedes-Benz E-Class Operator's Manual page 87

SmartKey battery
Important safety notes
G
WARNING
Batteries contain toxic and corrosive
substances. If batteries are swallowed, it can
result in severe health problems. There is a
risk of fatal injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately.
Mercedes-Benz recommends that you have
the batteries replaced at a qualified specialist
workshop.
Checking the battery
Press the & or % button.
X
The battery is working properly if battery
check lamp : lights up briefly.
The battery is discharged if battery check
lamp : does not light up briefly.
Change the battery (
X
i
If the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the & or % button:
locks or
R
unlocks the vehicle
R
i
You can get a battery at any qualified
specialist workshop.
page 85).
Y
Replacing the battery
You require a CR 2025 3 V cell battery.
Take the mechanical key out of the
X
SmartKey ( page 84).
Y
Battery compartment cover
:
Mechanical key
;
Press mechanical key ; into the opening
X
in the SmartKey in the direction of the
arrow until battery compartment cover :
opens. Do not hold battery compartment
cover : closed while doing so.
Remove battery compartment cover :.
X
Battery
=
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.
SmartKey
85
Z