i have just bought Superb 2008 and the previous owner told me that columbus sometimes turns off, but nothing more serious. I accepted it and now, two weeks later, it stopped showing rear parking sensors (at least these beep), no air-con, left remotes on steering wheel stopped working, but what is bothering me the most is - it basically goes off whenever it wants to with not always going back on afterwards. Took it to Skoda dealer in Colchester and they told me that there is probably an assembly fault within the head unit and needs replacing. Obviously, being out of warranty - lots of money!!!! I am just furious! We are going to Slovakia in August and I will try to take it to Skoda there as I have my reservations about garages here!!! But this could be only my wish!!! If no luck there, I might consider used unit from e-bay or downgrading to Bolero!!! For the price difference, I could get 2 brand new TOM TOMs. Anyway, is there any alternative for Columbus but still with sat-nav? Thank you guys