Can anyone advise me please, just new on here and a new Skoda driver, the Columbus system in my car constantly reboots. It happened for a while but always came on after 5 mins or so but now wont come on at all.  This is the model number.

Thanks 

Yep, it's a fairly common problem. I offer a repair service if you check the link in my signature.

 

Thanks, although I'm in Belfast, can the unit be replaced without any hassle 

Are there any good sites that are trust worthy and sell replacement units. I heard there might be somewhere that does a trade in o  them, is that true?

Honestly, it's a £45 repair (plus postage costs). I wouldn't be considering replacing the unit, just remove it from the car, post it over here, I'll fix it and send it back, simples.
 

 

As a matter of fact in most of such cases it's enough to re-install software.