Mercedes-Benz ML320 Cdi Operator's Manual page 321

Controls in detail
Useful features
Operation of integrated remote control
Switch on the ignition ( page 40).
Select and press the appropriate inte-
grated signal transmitter button (2,
3 or 4) to activate the remote con-
trolled device.
The integrated remote control trans-
mitter continues to send the signal as
long as the button is pressed – up to
20 seconds.
Erasing the integrated remote control
memory
Switch on the ignition ( page 40).
Simultaneously press and hold outer
signal transmitter buttons 2 and 4,
for approximately 20 seconds, until
indicator lamp 1 flashes rapidly. Do
not hold for longer than 30 seconds.
The codes of all three channels are
erased.
i
If you sell your vehicle, erase the codes of all
three channels.
320
Programming tips
If you are having difficulty programming
the integrated remote control, here are
some helpful tips:
Check the frequency of hand-held
remote control 5 (typically located on
the reverse side of the remote). The in-
tegrated remote control is compatible
with radio-frequency devices operating
between 280-390 MHz.
Put a new battery in hand-held remote
control 5. This will increase the likeli-
hood of the hand-held remote control
sending a faster and more accurate sig-
nal to the integrated remote control.
While performing step 3, hold
hand-held remote control 5 at differ-
ent lengths and angles from the signal
transmitter button (2, 3 or 4) you
are programming. Attempt varying an-
gles at the distance of 2 to 5 inches
(5 to 12 cm) away or the same angle at
varying distances.
If another hand-held remote control is
available for the same device, try the
programming steps again using that
other hand-held remote control. Make
sure new batteries are in the hand-held
remote control before beginning the
procedure.
Straighten the antenna wire from the
garage door opener assembly. This
may help improve transmitting and/or
receiving signals.
i
Certain types of garage door openers are in-
compatible with the integrated remote control. If
you should experience further difficulties with
programming the integrated remote control,
contact an authorized Mercedes-Benz Center, or
call Mercedes-Benz Customer Assistance
Center (in the USA only) at 1-800-FOR-MER-
Cedes, or Customer Service (in Canada) at
1-800-387-0100.