Key problems

[mfish]

Hi I was wondering if anyone could help.
I've already searched and tried most options on this but help wold be appreciated.
I have a 2003 Leon Cuora TDI and was looking to get a flip key working so I can do delock mod.
I bought a new flip key off of ebay which the seller said would work on Seat models. I have since found it is a Siemens key and I have the older Hella type is this why I'm getting no where?
I have tried a number of ways of programming key and I can get the door led to flash when the ignition is on and door is unlocked but cant get the remote fob to work. The alarm goes off after a few seconds and I need to retrieve key, I guess this is because it is working as if I hadn't pressed the open button on the key fob and gives me a few minutes to get in to the car and put ignition on?
Any help would be appreciated I don't have the Leon manual so I can't even follow instructions in there

 

[mfish]

Anyone have any ideas? I have the instructions for the key programming and have to hold the lock key and press unlock three times, led flashes five times but doesn't seem to want to work? I have changed transponder and key works fine as a normal key, but I really would like to get the buttons workind so i can delock.

 

[Cammage]

Hey did u manage to find out the correct procedure to programme your key? If so wat was the procedure you used?

 

[mfish]

No good mate, I had a siemens key rather than a hella so it wouldn't have it at all.
I'm going to try ang get a hella one cheap and see what happens. Are you having problems too? if so what key have you tried, so i can avoid it!!

 

[Cammage]

Hey, i have got 433mhz hella, "supposedly" the one for my car as its 433mhz and the original one is hella. I just carnt get it to programme for remote central locking. Upto now, looks like im having to go to the dealers for it

 

[mfish]

This is really starting to puzzle me as ome peopes seem to work straight away and others struggle. It cant be the individuals trying to program it, can it ??????

 

[cruising03uk]

so a siemens key will not work never?