A- Class Owner's Manual - Page 71

For 2019 A 220 Sedan. Also, The document are for others Mercedes-Benz models: 2019 A- CLASS

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Problem
Possible causes/consequences and M Solutions
R
The SmartKey is faulty.
#
Activate the SmartKey functions (/ page 66).
#
Check the battery using the battery check lamp and replace if necessary (/ page 67).
#
Use the emergency key to unlock or lock the vehicle (/ page 67).
#
Have the vehicle and SmartKey checked at a qualified specialist workshop.
Activating/deactivating the automatic lock
ing feature
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn
ing faster than walking pace.
#
To activate: press and hold button 2 for
approximately five seconds until an acoustic
signal sounds.
#
To deactivate: press and hold button 1 for
approximately five seconds until an acoustic
signal sounds.
When the vehicle is locked automatically, the
indicator lamp in button 2 lights up.
In the following situations, there is a danger of
being locked out when the function is activated:
R
While the vehicle is being tow started/
pushed.
R
The vehicle is being tested on the dynamom
eter.
72
Opening and closing
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