Mercedes-Benz E CLASS 2020 Operator's Manual page 168

166 Driving and parking
synchronization of the rolling code with
the door system must also be carried out.
If indicator lamp 4 does not light up or flash
#
green: repeat the procedure.
Release all of the buttons.
#
% The remote control for the door drive is not
included in the scope of delivery of the
garage door opener.
Synchronizing the rolling code
Requirements:
The door system uses a rolling code.
R
The vehicle must be within range of the
R
garage door or door drive.
The vehicle as well as persons and objects,
R
are located outside the range of movement
of the door.
Press the programming button on the door
#
drive unit.
Initiate the next step within approximately
30 seconds.
Press previously programmed button 1,
#
or 3 repeatedly until the door closes.
When the door closes, programming is com‐
plete.
% Please also read the operating instructions
for the door drive.
Troubleshooting when programming the
remote control
Check if the transmitter frequency of remote
#
control 5 is supported.
Replace the batteries in remote control 5.
#
Hold remote control 5 at various angles
#
from a distance of 0.4 in (1 cm) to 3 in
2
(8 cm) in front of the inside rearview mirror.
You should test every position for at least
25 seconds before trying another position.