I have a 180 TDI Touareg purchased in September 2014 [o4/2014 manufacture] that has done less than 6,000k.
Recently the DPF warning came up. I followed VW's recommendations and took it for a freeway run of over 30 mins at between 100 and 110 kph. and at next start-up the warning had gone. Less than 20klm later the warning is back.
Any suggestions? Unfortunately my experiences with the dealer shortly after purchase [they stuffed the towbar installation physically and electronically] was enough to make me want to stay away from dealers if at all possible.
If it was not for the warranty aspect I would ditch the DPF.