Hi,
Phil it sounds like you have a mechatronic valve block problem same as mine, when tranny is hot it fails to release first gear when car stops at traffic lights etc and only does so when the engine management warns the tranny that the engine is stalling. Dealers wont recognise the the problem unless you persist or like me you have a mate who's a VW tech at another branch and gave me a copy of the internal bulettin. Mine goes in for replacement of this unit next week after much messing around with software and changing transmission oil and the like. The unit is the best part of a £ grand so this maybe why VW are reluctant to replace it or admit there is an issue on some cars. :embarassed: