Reg. No:- VK58 XZU First Reg. 30-11 2008
I did have the same problem some months ago but it suddenly corrected itself and has worked quit well until it just stopped working again. I left it for a while to see if it would but itself right again, but nothing. There were no obvious symptoms, ie, unreliable, needing to be right next to the car before it would work. It just would'nt work one day.
I have replaced the battery in the fob.
Hope this helps.