Mercedes-Benz A-Class 2020 Operator's Manual page 69

Problems with KEYLESS-GO
Problem
You can no longer lock or unlock the
vehicle using KEYLESS-GO.
To unlock the vehicle: touch the inner sur‐
#
face of the door handle.
To lock the vehicle: touch sensor surface
#
1 or 2.
Convenience closing: touch recessed sen‐
#
sor surface 2 until the closing process has
been completed.
% Further information on convenience closing
( page 73).
/
If you open the tailgate from outside it is auto‐
matically unlocked.
Possible causes/consequences and
Possible causes are:
The key functions have been deactivated (
R
The SmartKey battery is discharged or nearly discharged.
R
There is interference from a powerful radio signal source.
R
M M Solutions
page 63).
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67
Opening and closing