fob or imobiliser

Hello all, I’ve just bought a 2009 1.4tsi leon. The remote fob won’t lock or unlock the car. I have to use the key manually. The red light flashes on my fob so there doesn’t seem to be issues with that. I’ve tried ‘synchronising’ the key according to the manual, no luck with that either. I’ve...

Here's the background of what happened; a mate of mine has a mk3 ibiza that has a de-locked door handle and his key fob ran out of battery so he had to get a new key fob and re-code it. To get this new key fob to work you have to have your non-fob key in the ignition and put the key fob into...