Hi all has anyone experienced their indicator and dipped beam dash lights flickering ? . I also have had the display on the radio flash up with messages like cannot display tempreature, driver convince Aids faulty and rear parking sensors inoperative while doing 70mph . Also doors seem to be sporadically locking and unlocking when they want ? Any ideas . It's a 2013 superb se 140 tdi wagon .

I would say almost classic signs of a bad earth somwhere.  Have you or the garage had the battery earth lead off at some point ? 

Had a new stereo fitted under warranty recently so could be possible

Maybe just check both leads at the battery to ensure that they actually tightened them ?   I can't recall if there are small diameter secondary leads attached to the main ones, but just check that they are tight as well.

Had a new stereo fitted under warranty recently so could be possible

Since you own a 2013 car, it is clearly still under warranty. So don't do this yourselves, take it back to the your dealer (hopefully the same that fitted the stereo) and have them fix it.