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Problem
Possible causes/consequences and M Solutions
Vehicles without a panoramic slid‐
ing sunroof: The sliding sunroof does
not operate smoothly.
#
Push the 3 button up to the point of resistance until the sliding sunroof is fully open.
#
Press the 3 button for another second.
#
Close the sliding sunroof.
Anti-theft protection
Function of the immobilizer
The immobilizer prevents your vehicle from being
started without the correct SmartKey.
The immobilizer is automatically activated when
the ignition is switched off and deactivated when
the ignition is switched on.
When leaving the vehicle, always take the Smart‐
Key with you and lock the vehicle. Anyone can
start the engine if a valid SmartKey has been left
inside the vehicle.
%
In the event the engine cannot be started
(yet the vehicle’s starter battery is charged),
the system is not operational. Contact an
authorized Mercedes-Benz Center or call
1-800-FOR-MERCedes (in the USA) or
1-800-387-0100 (in Canada).
ATA (anti-theft alarm system)
Function of the ATA system
If the ATA system is armed, a visual and audible
alarm is triggered in the following situations:
R
when a door is opened
R
when the tailgate is opened
R
when the hood is opened
The ATA system is armed automatically after
approximately ten seconds in the following situa‐
tions:
R
after locking the vehicle with the SmartKey
R
after locking the vehicle using KEYLESS-GO
Indicator lamp 1 flashes when the ATA system
is armed.
84
Opening and closing
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