Hello dear forum colleagues. The Seat Leon 1p 1,9 tdi 105PS, Bj 08 has a problem again and I can not explain it logically anymore. The following facts: One morning the radio key no longer works. -Considerably battery changed. -It still does not work. -Keys resynchronized – according to manual. -No change. -So error memory read out. -No error! -door control devices controlled and checked. Everything works perfectly. -I can lock up with the diagnostic device “Then in the comfort control unit “46” delete the key and then relearn it. So only 00, then command 01. Then I pressed on add keys and then I have to press a key at the key. And look there. The car detects the key!” To control even the warning flash (that means the receiver in the car works and the key also works) Why does it not lock then? I hope you can help me! Gruss v om Hans