Hello gents I have an S4 2004 tiptronic which is fine throughout the day but first thing on a morning when driving it occasionally drops down a gear and the dash flashes from PRNDS to 654321 then back to PRNDS. This only happens when the weather is 60 degrees or below, 70-90 in the afternoon the transmission is fine ? Has anyone else had this or know what might cause it ? I scanned with vag-com and got some old tiptronic switch codes but they haven't come back since I cleared them.