Program the Central locking for this Mercedes C230 1997

[achaccha]

Dear friends.
I need to program the central locking for this Mercedes C230 1997. initially the key was lost, I contacted the dealer and was imported a new key, the engine starts but the central locking does not work. please if you can help me with this programming.
Thanks for your help

[immokill]

Did you try to press and hold button and turn ignition ON?

[Bazil_mb]

Hi,
close the door. ignition on,off and within 30 sec press remote control button. led on the mirror initially blink. but after don[t