That sucks pal. I really thought this update might of been the one as what you described about the DSG holding 7th for to long seemed to make sense to me. However I've done a bit of reading on DPF regeneration and I don't think it's about revs it's more exhaust temp. Below is a brief description I found.@Twoguns, the light has reared its ugly head again this morning, so i can only assume the update did not work, i am waiting for a call back to book into the main dealers to carry out the update. will let you know what they say.
"To maintain performance a DPF has to be emptied regularly. This is usually done passively in a process called 'regeneration': when the exhaust temperature's high enough, on motorways or fast A-roads. The collected soot is burnt off, leaving only a tiny ash residue."
So considering I normally drive on these type of roads for more than an hour at a time and hardly do any short journeys mine should be working at its best so the AdBlue shouldn't have to do too much.
Mines still at the dealers since last Monday so awaiting an update on how the loaner van did over the weekend with my AdBlue parts on. I'll let you know as soon as I know.