Mercedes-Benz E-Class Saloon Owner's Manual page 100

There are several ways to deactivate the
alarm:
To deactivate the alarm with the key:
X
press the % or & button on the key.
or
Insert the key into the ignition lock.
X
or
To deactivate the alarm with KEYLESS-
X
GO: press the Start/Stop button in the igni-
tion lock. The key must be in the vehicle.
or
Lock or unlock the vehicle using KEYLESS-
X
GO. The key must be outside the vehicle.
If you unlock the vehicle using the emergency
key element, the fuel filler flap will not be
unlocked automatically.
To unlock the fuel filler flap: insert the
X
key into the ignition lock.
Removing the emergency key element
Push release catch : in the direction of
X
the arrow and, at the same time, remove
emergency key element ; from the key.
Further information about:
unlocking the driver's door (
R
unlocking the boot (
R
unlocking the tailgate (
R
locking the vehicle (
R
page 102)
Y
page 109)
Y
page 110)
Y
page 103)
Y
Inserting the emergency key element
Push emergency key element ; fully into
X
the key until it engages and release
catch : returns to its basic position.
Battery of the key
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.
Replace the battery (
X
i
If the battery of the key is checked within
the signal reception range of the vehicle,
pressing the & or % button:
locks or
R
unlocks the vehicle
R
i
You can obtain a battery from any quali-
fied specialist workshop.
Replacing the battery
You require a CR 2025 3 V cell battery.
Take the emergency key element out of the
X
key ( page 97).
Y
Key
page 97).
Y
Z
97