I have an audi a3 1.8 sport 2000 and the digital clock in between the rev counter and speedo seems a bit dodgy because sometimes it works and sometimes I only get half an image for instance the petrol warning lamp is only half shown but other times, mainly in the morning works. And the display is split into two screens however the top one doesn't work at all. What could this be? Is it a common fault with my car? Is it also easy enough to repair or replace?