Mercedes-Benz Coupe Operator's Manual page 62

Theft deterrent locking system
60
To arm: lock the vehicle with the
X
SmartKey.
The tow-away alarm is armed after
approximately 30 seconds.
To deactivate: unlock the vehicle with the
X
SmartKey.
The tow-away alarm is deactivated
automatically.
To prevent a false alarm, deactivate the tow-
away alarm manually if your vehicle:
is being transported
R
is being loaded onto a ferry or car
R
transporter, for example
is parked on a movable surface, e.g. in a
R
split-level garage
To deactivate: use the Start/Stop button
X
to set SmartKey position 0.
or
Remove the SmartKey from the ignition
X
lock.
Press button :.
X
Indicator lamp ; lights up briefly.
Lock the vehicle with the SmartKey.
X
The tow-away alarm is deactivated.
The tow-away alarm remains deactivated
until the vehicle is unlocked and locked
again.