Mercedes-Benz A-Class 2020 Operator's Manual page 70

68
Opening and closing
Problem
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.
Possible causes/consequences and
The SmartKey is faulty.
R
Activate the SmartKey functions (
#
Check the battery using the battery check lamp and replace if necessary (
#
Use the emergency key to unlock or lock the vehicle (
#
Have the vehicle and SmartKey checked at a qualified specialist workshop.
#
M M Solutions
page 63).
/
page 63).
/
To activate: press and hold button
#
approximately five seconds until an acoustic
signal sounds.
To deactivate: press and hold button
#
approximately five seconds until an acoustic
signal sounds.
When the vehicle is locked automatically, the
indicator lamp in button
In the following situations, there is a danger of
being locked out when the function is activated:
While the vehicle is being tow started/
R
pushed.
If the vehicle is being tested on a roller dyna‐
R
mometer.
page 63).
/
2 for
1 for
2 lights up.