key sync

Hi everyone, just hoping for some advice on a Seat Leon Cupra Mk1 2004. Recently went on holiday and come back to a dead battery, key would not open door and manual key mechanism was broke so no way to get in. Watched a YouTube video and put a battery feed with jump leads to the starter motor...

I have also replaced the battery so it isn't that. The manual says: If the button UNLOCK BUTTON is pressed frequently outside of the vehicle range, it is possible that the vehicle can no longer be locked or unlocked using the key. In this case, the key must be resynchronised as described...

I’m happy to be part of this forum and finally owning my first car, but I’m sadly running into issues with this car and can’t seem to fix them. Feel free to take a look at the issue: Model: Leon 5D - KL12CR Software: 1325 The key fob is not detected inside the car. An error message shows...

So my fob stopped working after changing the battery recently. The battery was only low but when I put the new battery in and it didn't work at all. I decided to put the old battery back in and to my surprise it still didn't work! Thinking there was a particular technique to changing it, I gave...