EZS 210 MAKE A DELAY TO IGNITION ON

[starprog]

Hello
I have mercedes 210, when introduce a key into ezs it made a delay of 4-6 SECONDS to make inginition on?
I tested a key .......... ok
why have this problem please?
thanks

[mercis]

open eis,check solder and clean contact
clean infra

[bali motor]

try change data key.. make another key number..