Keyfob circuit board

[Pigdog]

Hi everyone, I’m m new on here. I’ve just bought a a3 1.9tdi and i have a problem with the remote keyfob ive tried all the ways to reprogram the fob to the car and it just won’t work so im wondering i had a golf and had the same issue but bought a new circuit board off ebay and that worked straight away I’m guessing i got lucky with the part numbers my question is how do i find out what circuit board will work with my car any help would be very much appreciated thanks

 

[NHN]

What did you try to sync fob?

 

[Pigdog]

What did you try to sync fob?

I’ve been and got another key cut today so i can do the two key one with the new key in the ignition in the on position and used the key i want to program in the door and I’ve tried the holding the unlock button after turning on the ignition on releasing it then turning it off

 

[NHN]

Use vcds.

Also it wont do immo, only locking, you'd need it done properly with the correct tools.