Cluster resetting

Been lurking in the ngrp for a while and now ran into a problem with my 2001 A6 2.4. I am in South Africa. The instrument cluster keeps on resetting and
switching on and off for about 5 minutes or so on cold start. Ok rest of the day except for flickering now and again. It resets tripmeter to 0 as well as time and date. Dealer advised replacement battery, but that did'nt solve it. Booked in for a service in 2 weeks time (busy dealership) Anyone had this happen before?? Info appreciated
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.